Mozilla Corporation v. FCC ( 2019 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued February 1, 2019            Decided October 1, 2019
    No. 18-1051
    MOZILLA CORPORATION,
    PETITIONER
    v.
    FEDERAL COMMUNICATIONS COMMISSION AND UNITED
    STATES OF AMERICA,
    RESPONDENTS
    CITY AND COUNTY OF SAN FRANCISCO, ET AL.,
    INTERVENORS
    Consolidated with 18-1052, 18-1053, 18-1054, 18-1055,
    18-1056, 18-1061, 18-1062, 18-1064, 18-1065, 18-1066,
    18-1067, 18-1068, 18-1088, 18-1089, 18-1105
    On Petitions for Review of an Order of
    the Federal Communications Commission
    Pantelis Michalopoulos and Kevin Kendrick Russell
    argued the causes for non-government petitioners. With them
    on the joint briefs were Cynthia L. Taub, Markham C.
    Erickson, Michael A. Cheah, Brian M. Willen, Donald J.
    Evans, Sarah J. Morris, Matthew F. Wood, Colleen Boothby,
    James N. Horwood, Tillman L. Lay, Jeffrey M. Bayne,
    2
    Katherine J. O=Konski, Andrew J. Schwartzman, Harold J.
    Feld, and Lisa A. Hayes. Keenan P. Adamchak and Kevin S.
    Bankston, entered appearances.
    Stephanie Weiner argued the cause for intervenors Internet
    Association et al. et al. in support of petitioners. With her on
    the briefs were Christopher J. Wright, Scott Blake Harris, E.
    Austin Bonner, Matt Schruers, John A. Howes, Jr., and
    Anthony R. Segall. Maria K. Myers entered an appearance.
    Danielle L. Goldstein and Steven C. Wu, Deputy Solicitor
    General, Office of the Attorney General for the State of New
    York, argued the causes for government petitioners. With them
    on the briefs were Barbara D. Underwood, Attorney General
    at the time the brief was filed, Office of the Attorney General
    for the State of New York, Arocles Aguilar, Helen M.
    Mickiewicz, Lisa-Marie G. Clark, Kimberly Lippi, Ester
    Murdukhayeva, Assistant Solicitor General, Office of the
    Attorney General for the State of New York, Greta Hansen,
    Xavier Becerra, Attorney General, Office of the Attorney
    General for the State of California, Sarah E. Kurtz, Deputy
    Attorney General, Nicklas A. Akers, Senior Assistant Attorney
    General, George Jepsen, Attorney General, Office of the
    Attorney General for the State of Connecticut, Jonathan J.
    Blake, Assistant Attorney General, Jeffrey T. Pearlman, Phillip
    R. Malone, Matthew P. Denn, Attorney General, Office of the
    Attorney General for the State of Delaware, Christian D.
    Wright, Director, Consumer Protection, Thomas J. Miller,
    Attorney General, Office of the Attorney General for the State
    of Iowa, Benjamin E. Bellus, Assistant Attorney General,
    Russell A. Suzuki, Attorney General at the time the brief was
    filed, Office of the Attorney General for the State of Hawai=i,
    Clyde J. Wadsworth, Solicitor General, Lisa Madigan,
    Attorney General, Office of the Attorney General for the State
    of Illinois, David Franklin, Solicitor General, Andrew G.
    3
    Beshear, Attorney General, Office of the Attorney General for
    the Commonwealth of Kentucky, Maura Healey, Attorney
    General, Office of the Attorney General for the
    Commonwealth of Massachusetts, Jared Rinehimer, Assistant
    Attorney General, Janet T. Mills, Attorney General at the time
    the brief was filed, Office of the Attorney General for the State
    of Maine, Brendan O=Neil, Assistant Attorney General, Brian
    E. Frosh, Attorney General, Office of the Attorney General for
    the State of Maryland, Richard L. Trumka, Jr., Assistant
    Attorney General, Lori Swanson, Attorney General, Office of
    the Attorney General for the State of Minnesota, Joseph C.
    Meyer, Assistant Attorney General, Hector Balderas, Attorney
    General, Office of the Attorney General for the State of New
    Mexico, Tania Maestas, Deputy Attorney General, James M.
    Hood, Attorney General, Office of the Attorney General for the
    State of Mississippi, Crystal Utley Secoy, Special Assistant
    Attorney, Gurbir S. Grewal, Attorney General, Office of the
    Attorney General for the State of New Jersey, Jeremy M.
    Feigenbaum, Assistant Attorney General, Joshua H. Stein,
    Attorney General, Office of the Attorney General for the State
    of North Carolina, Kevin Anderson, Senior Deputy Attorney
    General, Peter Kilmartin, Attorney General, Office of the
    Attorney General for the State of Rhode Island, Michael W.
    Field, Assistant Attorney General, Ellen F. Rosenblum,
    Attorney General, Office of the Attorney General for the State
    of Oregon, Andrew Shull, Senior Assistant Attorney General,
    Josh Shapiro, Attorney General, Office of the Attorney
    General for the Commonwealth of Pennsylvania, Michael J.
    Fischer, Chief Deputy Attorney General, Thomas J. Donovan,
    Jr., Attorney General, Office of the Attorney General for the
    State of Vermont, Christopher J. Curtis, Chief, Public
    Protection Division, Karl A. Racine, Attorney General, Office
    of the Attorney General for the District of Columbia, Loren L.
    AliKhan, Solicitor General, Mark R. Herring, Attorney
    General, Office of the Attorney General for the
    4
    Commonwealth of Virginia, Samuel T. Towell, Deputy
    Attorney General, Robert W. Ferguson, Attorney General,
    Office of the Attorney General for the State of Washington,
    Tiffany Lee, Assistant Attorney General, Dennis J. Herrera,
    and William K. Sanders. Bryan C. Yee, Deputy Attorney
    General, Office of the Attorney General for the State of
    Hawai=i, Sarah E. Kurtz, Deputy Attorney General, Office of
    the Attorney General for the State of California, Michael C.
    Wertheimer, Assistant Attorney General, and John S. Story,
    Attorney, Office of the Attorney General for the State of
    Connecticut, Theresa C. Mueller, Jennifer M. Murphy, and
    James B. Ramsey, entered appearances.
    Christopher Jon Sprigman was on the brief for amici
    curiae Members of Congress in support of petitioners.
    Mitchell Stoltz and Corynne McSherry were on the brief
    for amicus curiae Electronic Frontier Foundation in support of
    petitioners.
    Christopher T. Bavitz was on the brief for amicus curiae
    Engine Advocacy in support of petitioners.
    MacKenzie Fillow, Edward N. Siskel, Michael P. May, and
    Karen L. Moynahan were on the brief for amici curiae The City
    of New York and 27 other local governments, mayors and
    municipal organizations in support of petitioners.
    Allen S. Hammond, IV was on the brief for amici curiae
    Professors of Administrative, Communications, Energy,
    Antitrust, and Contract Law and Policy in support of
    petitioners.
    Jessica L. Ellsworth and Matthew Higgins were on the
    brief for amici curaie The American Council on Education and
    5
    19 other education and library associations in support of
    petitioners.
    Henry Goldberg and Devendra T. Kumar were on the brief
    for amicus curiae eBay Inc. in support of petitioners.
    Adrienne E. Fowler was on the brief for amicus curiae
    Twilio Inc. in support of petitioner.
    Andrew Jay Schwartzman and James T. Graves were on
    the brief for amicus curiae Consumer Reports in support of
    petitioners.
    Thomas H. Vidal was on the brief for amici curiae
    Professors Scott Jordan and Jon Peha in support of petitioners.
    Michael J. Burstein was on the brief for amici curiae
    Professors of Communications Law in support of petitioners.
    Paul Goodman and Yosef Getachew were on the brief for
    amici curiae Common Cause, et al. in support of petitioners
    and vacation of the order.
    William Michael Cunningham, pro se, was on the brief for
    amicus curiae William Michael Cunningham in support of the
    public interest.
    Thomas M. Johnson Jr, General Counsel, Federal
    Communications Commission, argued the cause for
    respondents. With him on the brief were Kristen C. Limarzi
    and Nickolai G. Levin, Attorneys, U.S. Department of Justice,
    David M. Gossett, Deputy General Counsel, Federal
    Communications Commission, Jacob M. Lewis, Associate
    General Counsel, and James M. Carr and Scott M. Noveck,
    Counsel. Robert J. Wiggers, Attorney, U.S. Department of
    6
    Justice, and Richard K. Welch, Deputy Associate Counsel,
    Federal Communications Commission, entered appearances.
    Jonathan E. Nuechterlein argued the cause for ISP
    intervenors. On the brief were Michael K. Kellogg, Scott H.
    Angstreich, Helgi C. Walker, Andrew G.I. Kilberg, Miguel A.
    Estrada, Matthew A. Brill, Matthew T. Murchison, Jeffrey A.
    Lamken, and Stephen E. Coran. C. Frederick Beckner, III,
    Rick Chessen, Kellam M. Conover, Neal M. Goldberg,
    Theodore B. Olson, and Michael S. Schooler entered
    appearances.
    Ken Paxton, Attorney General, Office of the Attorney
    General for the State of Texas, Kyle D. Hawkins, Solicitor
    General, and John C. Sullivan, Assistant Solicitor General,
    were on the brief for amici curiae The States of Texas, et al. in
    support of respondents.
    Lawrence J. Spiwak was on the brief for amicus curiae
    Phoenix Center for Advanced Legal and Economic Public
    Policy Studies in support of respondents.
    Tara M. Corvo and Jonathan Markman were on the brief
    for amici curiae Richard Bennett, et al. in support of
    respondents.
    Thomas R. McCarthy was on the brief for amici curiae
    Washington Legal Foundation, et al. in support of respondents.
    John D. Seiver, Daniel P. Reing, and Sarah Oh were on
    the brief for amicus curiae The Technology Policy Institute in
    support of respondents.
    Charles Kennedy and James Dunstan were on the brief for
    amicus curiae TechFreedom in support of respondents.
    7
    Arthur J. Burke was on the brief for amicus curiae
    Information Technology and Innovation Foundation in support
    of respondents.
    Robert N. Weiner was on the brief for amici curiae The
    Georgetown Center for Business and Public Policy and Nine
    Prominent Economists and Scholars in support of respondents.
    Leonid Goldstein, pro se, was on the brief as an intervenor
    in support of respondents.
    John P. Elwood, Matthew X. Etchemendy, Peter C.
    Tolsdorf, Kevin W. Brooks, Dileep S. Srihari, and Daryl
    Joseffer were on the brief for amici curiae The National
    Association of Manufacturers, et al. in support of respondents.
    David P. Murray was on the brief for amici curiae The
    International Center for Law and Economics and Participating
    Scholars in support of respondents.
    Robert G. Kirk was on the brief for amicus curiae Roslyn
    Layton in support of respondents.
    J. Wade Lindsay was on the brief for amicus curiae Tech
    Knowledge in support of respondents.
    Christopher S. Yoo was on the brief for amicus curiae
    Christopher S. Yoo in support of respondents.
    Andrew Grimm was on the briefs for intervenor Digital
    Justice Foundation, Inc. in support of neither party.
    8
    Before: MILLETT and WILKINS, Circuit Judges, and
    WILLIAMS, Senior Circuit Judge.
    Opinion for the Court filed PER CURIAM.
    Concurring opinion filed by Circuit Judge MILLETT.
    Concurring opinion filed by Circuit Judge WILKINS.
    Opinion concurring in part and dissenting in part filed by
    Senior Circuit Judge WILLIAMS.
    TABLE OF CONTENTS
    I.   Broadband Internet Classification .................................. 13
    A. The Supreme Court’s Decision in Brand X ................. 16
    B. DNS and Caching in the 2018 Order ........................... 19
    C. Objections to the Classification.................................... 21
    1. “Walled Garden” Reading of Brand X ................. 21
    2. “Telecommunications Management” Exception ... 22
    3. Adjunct-to-Basic Precedent .................................. 32
    4. Functional Integration ........................................... 40
    II. Mobile Broadband Classification................................... 46
    A. The 2018 Order’s Provisions ....................................... 46
    B. Objections to the Classification.................................... 49
    1. Meaning of “Public Switched Network” .............. 50
    2. Whether Mobile Broadband Is an
    “Interconnected Service” ...................................... 54
    3. Whether Mobile Broadband Is the “Functional
    Equivalent” of a Commercial Mobile Service...... 62
    III. Section 706 Authority .................................................... 66
    9
    IV. Section 257 and the 2018 Order’s
    Transparency Requirements ........................................... 68
    V. Arbitrary and Capricious Challenges ............................. 73
    A. Effects on Investment and Innovation ......................... 74
    B. Harms to Edge Providers and Consumers ................... 85
    1. Reliance on the Transparency Rule ...................... 87
    2. Reliance on Competition ....................................... 88
    3. Reliance on Antitrust and Consumer
    Protection Laws ..................................................... 91
    C. Public Safety ................................................................. 93
    D. Reliance Interests ........................................................ 100
    E. Pole Attachments ........................................................ 104
    F. Lifeline Program ......................................................... 109
    G. Cost-Benefit Analysis................................................. 113
    H. Data Roaming Rates ................................................... 119
    I.    Procedural Challenges ................................................ 120
    VI. Preemption ................................................................... 121
    A. Express and Ancillary Authority................................ 122
    B. The Commission’s Asserted Sources of Authority ... 126
    1. Impossibility Exception....................................... 126
    2. Federal Policy of Nonregulation ......................... 130
    3. Case Precedent..................................................... 133
    C. Conflict Preemption.................................................... 135
    VII. Conclusion ................................................................... 145
    10
    PER CURIAM: In 2018, the Federal Communications
    Commission adopted an order classifying broadband Internet
    access service as an information service under Title I of the
    Communications Act of 1934, as amended by the
    Telecommunications Act of 1996, Pub. L. 104–104, 110 Stat
    56 (“the Act”). See In re Restoring Internet Freedom, 33 FCC
    Rcd. 311 (2018) (“2018 Order”). In so doing, the agency
    pursued a market-based, “light-touch” policy for governing the
    Internet and departed from its 2015 order that had imposed
    utility-style regulation under Title II of the Act.
    Petitioners––an array of Internet companies, non-profits,
    state and local governments, and other entities––bring a host of
    challenges to the 2018 Order. We find their objections
    unconvincing for the most part, though we vacate one portion
    of the 2018 Order and remand for further proceedings on three
    discrete points.
    The 2018 Order and today’s litigation represent yet
    another iteration of a long-running debate regarding the
    regulation of the Internet. We rehearsed much of this complex
    history in United States Telecom Association v. FCC, 
    825 F.3d 674
    , 689–697 (D.C. Cir. 2016) (“USTA”), and see no need to
    recapitulate here what was so well and thoroughly said there.
    In the interest of reader-friendliness, though, we briefly review
    certain highlights necessary to understand this opinion.
    As relevant here, the 1996 Telecommunications Act
    creates two potential classifications for broadband Internet:
    “telecommunications services” under Title II of the Act and
    “information services” under Title I. These similar-sounding
    terms carry considerable significance: Title II entails common
    carrier status, see 47 U.S.C. § 153(51) (defining
    “telecommunications carrier”), and triggers an array of
    statutory restrictions and requirements (subject to forbearance
    11
    at the Commission’s election). For example, Title II
    “declar[es] * * * unlawful” “any * * * charge, practice,
    classification or regulation that is unjust or unreasonable.” 
    Id. § 201(b).
    By contrast, “information services” are exempted
    from common carriage status and, hence, Title II regulation.
    An analogous set of classifications applies to mobile
    broadband: A “commercial mobile service” is subject to
    common carrier status, see 47 U.S.C. § 332(c)(1), whereas a
    “private mobile service” is not, see 
    id. § 332(c)(2).
    The Commission’s authority under the Act includes
    classifying various services into the appropriate statutory
    categories. See National Cable & Telecomms. Ass’n v. Brand
    X Internet Servs., 
    545 U.S. 967
    , 980–981 (2005). In the years
    since the Act’s passage, the Commission has exercised its
    classification authority with some frequency.
    Initially, in 1998, the Commission classified broadband
    over phone lines as a “telecommunications service.” See In re
    Deployment of Wireline Services Offering Advanced
    Telecommunications Capability, 13 FCC Rcd. 24012 (1998).
    Just four years later, though, the Commission determined
    that cable broadband was an “information service,” see In re
    Inquiry Concerning High-Speed Access to the Internet over
    Cable and Other Facilities (“Cable Modem Order”), 17 FCC
    Rcd. 4798 (2002), a choice that the Supreme Court upheld in
    Brand X, 
    545 U.S. 967
    . The agency then applied a similar
    classification to wireline and wireless broadband. See In re
    Appropriate Framework for Broadband Access to the Internet
    over Wireline Facilities, 20 FCC Rcd. 14853 (2005) (“2005
    Wireline Broadband Order”); In re Appropriate Regulatory
    Treatment for Broadband Access to the Internet over Wireless
    Networks, 22 FCC Rcd. 5901 (2007) (“Wireless Broadband
    Order”).
    12
    But in 2015 the Commission took the view that broadband
    Internet access is, in fact, a “telecommunications service” and
    that mobile broadband is a “commercial mobile service.” See
    In re Protecting and Promoting the Open Internet, 30 FCC
    Rcd. 5601 (2015) (“Title II Order”). In USTA, this court
    upheld that classification as reflecting a reasonable
    interpretation of the statute under Chevron’s second step. 
    See 825 F.3d at 701
    –706, 713–724; see also Chevron, U.S.A., Inc.
    v. Natural Res. Def. Council, 
    467 U.S. 837
    (1984).
    Once again, the Commission has switched its tack. In
    2017, the Commission issued a notice of proposed rulemaking
    seeking to revert to its pre-2015 position, In re Restoring
    Internet Freedom, 32 FCC Rcd. 4434 (2017), and released the
    final order at issue in this case in January 2018.
    The 2018 Order accomplishes a number of objectives.
    First, and most importantly, it classifies broadband Internet as
    an “information service,” see 2018 Order ¶¶ 26–64, and
    mobile broadband as a “private mobile service,” see 
    id. ¶¶ 65–
    85. Second, relying on Section 257 of the Act (located in Title
    II but written so as to apply to Titles I through VI), the
    Commission adopts transparency rules intended to ensure that
    consumers have adequate data about Internet Service
    Providers’ network practices. See 
    id. ¶¶ 209–38.
    Third, the
    Commission undertakes a cost-benefit analysis, concluding
    that the benefits of a market-based, “light-touch” regime for
    Internet governance outweigh those of common carrier
    regulation under Title II, see 
    id. ¶¶ 304–323,
    resting heavily on
    the combination of the transparency requirements imposed by
    the Commission under Section 257 with enforcement of
    existing antitrust and consumer protection laws, see 
    id. ¶¶ 140–
    154. The Commission likewise finds that the burdens of the
    Title II Order’s conduct rules exceed their benefits. See 
    id. ¶¶ 246–266.
                                  13
    We uphold the 2018 Order, with two exceptions. First, the
    Court concludes that the Commission has not shown legal
    authority to issue its Preemption Directive, which would have
    barred states from imposing any rule or requirement that the
    Commission “repealed or decided to refrain from imposing” in
    the Order or that is “more stringent” than the Order. 2018
    Order ¶ 195. The Court accordingly vacates that portion of the
    Order. Second, we remand the Order to the agency on three
    discrete issues: (1) The Order failed to examine the
    implications of its decisions for public safety; (2) the Order
    does not sufficiently explain what reclassification will mean
    for regulation of pole attachments; and (3) the agency did not
    adequately address Petitioners’ concerns about the effects of
    broadband reclassification on the Lifeline Program.
    I.    Broadband Internet Classification
    The central issue before us is whether the Commission
    lawfully applied the statute in classifying broadband Internet
    access service as an “information service.” We approach the
    issue through the lens of the Supreme Court’s decision in
    Brand X, which upheld the Commission’s 2002 refusal to
    classify cable broadband as a “telecommunications 
    service.” 545 U.S. at 974
    . The Commission’s classification of cable
    modem as an “information service” was not challenged in
    Brand X, see 
    id. at 987,
    but, given that “telecommunications
    service” and “information service” have been treated as
    mutually exclusive by the Commission since the late 1990s,
    see, e.g., 2018 Order ¶¶ 53, 62 & n.239; Title II Order ¶ 385,
    a premise Petitioners do not challenge, see Mozilla Br. 24, we
    view Brand X as binding precedent in this case.
    We start, of course, with the statutory definition. Section
    47 U.S.C. § 153(24) reads:
    14
    The term “information service” means the offering of
    a capability for generating, acquiring, storing,
    transforming, processing, retrieving, utilizing, or
    making available information via telecommunications
    * * * but does not include any use of any such
    capability for the management, control, or operation
    of a telecommunications system or the management
    of a telecommunications service.
    The final clause is known as the “telecommunications
    management”      exception.          The       Act     defines
    “telecommunications     service”     (as      distinct   from
    “telecommunications,” see 
    id. § 153(50)),
    as follows:
    The term “telecommunications service” means the
    offering of telecommunications for a fee directly to
    the public, or to such classes of users as to be
    effectively available directly to the public, regardless
    of the facilities used.
    
    Id. § 153(53).
    The Commission appears to make two arguments for its
    classification. It states first that “broadband Internet access
    service necessarily has the capacity or potential ability to be
    used to engage in the activities within the information service
    definition—‘generating, acquiring, storing, transforming,
    processing, retrieving, utilizing, or making available
    information via telecommunications,’” 2018 Order ¶ 30
    (quoting 47 U.S.C. § 153(24)), and on that basis alone merits
    an “information service” classification.
    The Commission then goes on to say:           “But even if
    ‘capability’ were understood as requiring         more of the
    information processing to be performed by         the classified
    service itself, we find that broadband Internet   access service
    15
    meets that standard.” 2018 Order ¶ 33. As we will see, the
    Commission regards this requirement as being met by specific
    information-processing features that are, in its view,
    functionally integrated with broadband service, particularly
    Domain Name Service (“DNS”) and caching, about which
    more later. (Petitioners themselves treat the Commission’s
    DNS/caching argument as “an alternative ground” for the
    Commission’s classification. Mozilla Reply Br. 21.)
    Our review is governed by the familiar Chevron
    framework in which we defer to an agency’s construction of an
    ambiguous provision in a statute that it administers if that
    construction is reasonable. See, e.g., American Elec. Power
    Serv. Corp. v. FCC, 
    708 F.3d 183
    , 186 (D.C. Cir. 2013) (The
    Chevron framework “means (within its domain) that a
    ‘reasonable agency interpretation prevails.’”) (quoting
    Northern Nat. Gas Co. v. FERC, 
    700 F.3d 11
    , 14 (D.C. Cir.
    2012)). By the same token, if “Congress has directly spoken
    to an issue then any agency interpretation contradicting what
    Congress has said would be unreasonable.” Entergy Corp. v.
    Riverkeeper, Inc., 
    556 U.S. 208
    , 218 n.4 (2009).
    At Chevron Step One, we ask “whether Congress has
    directly spoken to the precise question at 
    issue.” 467 U.S. at 842
    . Where “the intent of Congress is clear, that is the end of
    the matter; for [we], as well as the agency, must give effect to
    the unambiguously expressed intent of Congress.” 
    Id. at 842–
    843. But if “the statute is silent or ambiguous with respect to
    the specific issue,” we proceed to Chevron Step Two, where
    “the question for the court is whether the agency’s answer is
    based on a permissible construction of the statute.” 
    Id. at 843.
    However, we do not apply Chevron reflexively, and we find
    ambiguity only after exhausting ordinary tools of the judicial
    craft. Cf. Kisor v. Wilkie, 
    139 S. Ct. 2400
    , 2414–2415 (2019).
    16
    All this of course proceeds in the shadow of Brand X, which
    itself applied Chevron to a similar issue.
    Applying these principles here, we hold that classifying
    broadband Internet access as an “information service” based on
    the functionalities of DNS and caching is “‘a reasonable policy
    choice for the [Commission] to make’ at Chevron’s second
    step.” Brand 
    X, 545 U.S. at 997
    (alteration in original) (quoting
    
    Chevron, 467 U.S. at 845
    ). As we said in USTA, “Our job is to
    ensure that an agency has acted ‘within the limits of
    [Congress’s] delegation’ of 
    authority,” 825 F.3d at 697
    (quoting 
    Chevron, 467 U.S. at 865
    ), and “we do not ‘inquire as
    to whether the agency’s decision is wise as a policy matter;
    indeed, we are forbidden from substituting our judgment for
    that of the agency,’” 
    id. (quoting Association
    of Am. Railroads
    v. ICC, 
    978 F.2d 737
    , 740 (D.C. Cir. 1992)); see also United
    States Telecom Ass’n v. FCC, 
    855 F.3d 381
    , 384 (D.C. Cir.
    2017) (“[T]he [Brand X] Court made clear in its decision—
    over and over—that the Act left the [classification] to the
    agency’s discretion.” (Srinivasan, J., joined by Tatel, J.,
    concurring in denial of rehearing en banc)).
    A. The Supreme Court’s Decision in Brand X
    Brand X held that, by virtue of the ambiguity of the word
    “offering,” the FCC could permissibly choose not to classify
    cable modem service as a “telecommunications service.”
    Brand 
    X, 545 U.S. at 973
    –974, 989–992. As to DNS and
    caching, the Brand X Court endorsed the Commission’s
    argument that those functionalities can be relied on to classify
    cable modem service as an “information service.” Challengers
    opposing the FCC had argued that when consumers “go[]
    beyond” certain Internet services offered by cable modem
    companies themselves—for example, beyond access to
    proprietary e-mail and Web pages (commonly referred to as the
    17
    cable modem companies’ “walled gardens”)—the companies
    were “offering” a “telecommunications service” rather than an
    “information service.” 
    Id. at 998.
    The Court rejected this
    claim. It found that such a view “conflicts with the
    Commission’s understanding of the nature of cable modem
    service,” which the Court deemed “reasonable.” Id.; cf. 2018
    Order ¶ 51. The Court explained that—when a user accesses
    purely third-party content online—“he is equally using the
    information service provided by the cable company that offers
    him Internet access as when he accesses the company’s own
    Web site, its e-mail service, or his personal Web page,” Brand
    
    X, 545 U.S. at 999
    (emphasis added), i.e., “walled garden”
    services. Why so?
    Brand X’s answer, as relevant here, lay in DNS and
    caching. The argument proceeded in two steps—first, showing
    that DNS and caching themselves can properly fall under the
    “information service” rubric; second, showing that these
    “information services” are sufficiently integrated with the
    transmission element of broadband that it is reasonable to
    classify cable modem service as an “information service.” See
    Brand 
    X, 545 U.S. at 999
    –1000.
    As to the first step, the Court observed that “[a] user cannot
    reach a third party’s Web site without DNS,” Brand 
    X, 545 U.S. at 999
    , which “among other things, matches the Web page
    addresses that end users type into their browsers (or ‘click’ on)
    with the Internet Protocol (IP) addresses of the servers
    containing the Web pages the users wish to access,” 
    id. at 987.
    It therefore saw it as “at least reasonable” to treat DNS itself
    “as a ‘capability for acquiring * * * retrieving, utilizing, or
    making available’ Web site addresses and therefore part of the
    information service cable companies provide.” 
    Id. at 999
    (quoting 47 U.S.C. § 153(24)); see also 
    id. at n.3
    (rebutting
    dissent’s claim that “DNS does not count as use of the
    18
    information-processing capabilities of Internet service”). The
    Court applied a cognate analysis to caching, which “facilitates
    access to third-party Web pages by offering consumers the
    ability to store, or ‘cache’ popular content on local computer
    servers,” 
    id. at 999,
    “obviat[ing] the need for the end user to
    download anew information from third-party Web sites each
    time the consumer attempts to access them,” 
    id. at 999–1000.
    Thus the Court found “reasonable” the FCC’s position that
    “subscribers can reach third-party Web sites via ‘the World
    Wide Web, and browse their contents, [only] because their
    service provider offers the capability for * * * acquiring,
    [storing] * * * retrieving [and] utilizing * * * information.’”
    
    Id. at 1000
    (alterations in original) (some internal quotation
    marks omitted) (quoting In re Federal-State Joint Bd. on
    Universal Serv., 13 FCC Rcd. 11501, 11537–11538 ¶ 76
    (1998) (“Stevens Report”)).
    As to the second step, the Brand X Court endorsed the
    FCC’s position that—because DNS and caching are
    “inextricably intertwined” with high-speed transmission—it
    was reasonable for the Commission not to treat the resulting
    package as an “offering” of a standalone “telecommunications
    
    service.” 545 U.S. at 978
    –979, 989–991; see Cable Modem
    Order at 4823 ¶ 38 (“As currently provisioned, cable modem
    service is a single, integrated service that enables the subscriber
    to utilize Internet access service * * * .”). “[H]igh-speed
    transmission used to provide cable modem service is a
    functionally integrated component of [cable modem] service
    because it transmits data only in connection with the further
    processing of information and is necessary to provide Internet
    service.” Brand 
    X, 545 U.S. at 998
    (emphasis added). DNS
    and caching, in turn, are two examples of such “further
    processing” integrated with the data transmission aspect of
    cable modem service. “[A] consumer cannot purchase Internet
    service without also purchasing a connection to the Internet and
    19
    the transmission always occurs in connection with information
    processing,” 
    id. at 992,
    in the form of (for example) DNS or
    caching.      Thus, according to the Supreme Court, the
    Commission reasonably concluded that cable modem service
    is not an offering of a standalone “telecommunications
    service,” but, rather, an “information service”—which by
    definition is offered “via telecommunications.” See 
    id. at 989–
    992; see also 2018 Order ¶ 52.
    B. DNS and Caching in the 2018 Order
    The reasoning in the 2018 Order tallies with the line of
    argument in Brand X described above. See, e.g., 2018 Order
    ¶¶ 26, 34, 41, 51, 53, 54, 55 n.207, 57. The Commission’s
    principal claim is that “ISPs offer end users the capability to
    interact with information online * * * through a variety of
    functionally integrated information processing components
    that are part and parcel of the broadband Internet access service
    offering itself”—including DNS and caching. 
    Id. ¶ 33.
    The
    Commission describes DNS and caching as “integrated
    information processing capabilities offered as part of
    broadband Internet access service to consumers today.”
    
    Id. We hold
    that under Brand X this conclusion is reasonable.
    We note that the 2018 Order alluded to several
    “information       processing     functionalities  inextricably
    intertwined with the underlying service” besides DNS and
    caching, such as “email, speed test servers, backup and support
    services, geolocation-based advertising, data storage, parental
    controls, unique programming content, spam protection, pop-
    up blockers, instant messaging services, on-the-go access to
    Wi-Fi hotspots, and various widgets, toolbars, and
    applications.” 2018 Order ¶ 33 n.99. Although the 2018 Order
    states that these “further support the ‘information service’
    classification,” it did not find them “determinative,” 
    id., and 20
    mentioned them only briefly in a footnote. Thus we address
    DNS and caching only.
    In passages echoing Brand X, the Commission
    characterized the essential roles of DNS and caching. As to
    DNS, it observed that DNS is “indispensable to ordinary users
    as they navigate the Internet.” 2018 Order ¶ 34 (quoting
    AT&T Comments at 73, J.A. 189). “[T]he absence of ISP-
    provided DNS would fundamentally change the online
    experience for the consumer.” 
    Id. This formulation
    is actually
    a good deal more cautious than that of the Court in Brand X,
    which declared that without DNS a “user cannot reach a third
    party’s Web 
    site.” 545 U.S. at 999
    . In fact users who know
    the necessary IP addresses could enter them for each relevant
    server. But the Commission and the Court (the latter more
    emphatically) are making an undeniable pragmatic point—that
    use of the Web would be nightmarishly cumbersome without
    DNS.
    As to caching, the Commission explained that it “provides
    the capability to perform functions that fall within the
    information service definition,” 2018 Order ¶ 41, including,
    but not limited to, “enabl[ing] the user to obtain more rapid
    retrieval of information through the network,” 
    id. (quoting Information
    Technology and Innovation Foundation (“ITIF”)
    Comments at 13, WC Dkt. No. 17-108 (July 17, 2017)
    (quoting, in turn, Title II Order ¶ 372)). Operating a caching
    service entails running “complex algorithms to determine what
    information to store where and in what format,” 
    id. (quoting ITIF
    Comments at 13), so that “caching involves storing and
    retrieving capabilities required by the ‘information service’
    definition,” 
    id. Thus the
    Commission added technical detail
    reinforcing the Brand X Court’s statements as to caching. 
    See 545 U.S. at 999
    –1000.
    21
    The Commission then summarized these points, again in
    terms resonating with those in which Brand X had endorsed the
    2002 Cable Modem Order. It argued that “ISPs offer a single,
    inextricably intertwined information service,” 2018 Order
    ¶ 49, based in part on the functionalities of DNS and caching.
    It said that “all broadband Internet access services rely on DNS
    and commonly also rely on caching by ISPs,” 
    id. ¶ 48,
    and
    contended that DNS and caching should be “understood as part
    of a single, integrated information service offered by ISPs,” 
    id. ¶ 50;
    see also 
    id. ¶ 42.
    It then maintained, drawing on Brand
    X, that “[w]here * * * a service involving transmission
    inextricably intertwines that transmission with information
    service capabilities—in the form of an integrated information
    service—there cannot be ‘a “stand-alone” offering of
    telecommunications * * * ,’” 
    id. ¶ 53
    (quoting Brand 
    X, 545 U.S. at 989
    ), in line with the Commission’s stance in Brand X.
    “[A]n offering like broadband Internet access service that
    ‘always and necessarily’ includes integrated transmission and
    information service capabilities * * * [is] an information
    service.” 
    Id. ¶ 55
    (quoting Brand 
    X, 545 U.S. at 992
    ).
    C. Objections to the Classification
    Petitioners raise numerous objections aimed to show that
    the Commission’s reliance on DNS and caching for classifying
    broadband as an “information service” is unreasonable at
    Chevron’s second step. We find them unconvincing.
    1.   “Walled Garden” Reading of Brand X
    First, to short-circuit the Commission’s reliance on Brand
    X, Petitioners try to characterize the Court’s reasoning in that
    case as dependent on a vision of Internet providers as offering
    mainly access to their “walled gardens.” They assert that in
    Brand X “the Court was focused on the [Broadband Internet
    22
    Access Service (“BIAS”)] providers’ add-on information
    services, such as ISP-provided e-mail,” and that “the Court had
    no occasion to consider the proper classification of a service
    combining telecommunications with nothing more than DNS
    and caching.” Mozilla Br. 42. This reading is unpersuasive
    because it airbrushes out the lengthy discussion summarized
    above in which the Court finds “reasonable” the Commission’s
    “information-service” classification even where “a consumer
    goes beyond [walled garden] offerings and accesses content
    provided by parties other than the cable company,” Brand 
    X, 545 U.S. at 998
    —by virtue of the functionalities of DNS and
    caching, see 
    id. at 998–1000.
    We thus reject Petitioners’
    attempt to discredit the Commission’s sensible reliance on
    Brand X’s treatment of DNS and caching. See, e.g., 2018
    Order ¶¶ 10, 34, 41, 51; see also Part I.C.4 infra (addressing
    Petitioners’ related claims in functional integration context).
    2.   “Telecommunications Management” Exception
    Petitioners assert that DNS and caching fall under the
    “telecommunications management” exception (“TME”) and so
    cannot be relied on to justify an “information service”
    classification. See Mozilla Br. 43–46. We find that
    Petitioners’ arguments do not hold up, either because they rest
    on a misreading of Brand X and USTA or do not adequately
    grapple with the Commission’s reasonable explanation as to
    why DNS and caching fall outside that exception. See 2018
    Order ¶¶ 36–38, 42–44. Our discussion here will be quite
    involved in part because Brand X did not directly confront
    whether DNS and caching may fall within the TME. See Brand
    
    X, 545 U.S. at 999
    n.3.
    In deciding whether to slot DNS and caching under the
    TME the Commission confronted “archetypal Chevron
    questions[] about how best to construe an ambiguous term in
    23
    light of competing policy interests.” City of Arlington v. FCC,
    
    569 U.S. 290
    , 304 (2013). “[I]f the implementing agency’s
    construction is reasonable, Chevron requires a federal court to
    accept the agency’s construction of the statute, even if the
    agency’s reading differs from what the court believes is the
    best statutory interpretation.” Brand 
    X, 545 U.S. at 980
    . And
    when an agency changes course, as it did here, it “must show
    that there are good reasons for the new policy,” but “it need not
    demonstrate to a court’s satisfaction that the reasons for the
    new policy are better than the reasons for the old one.” 
    USTA, 825 F.3d at 707
    (quoting FCC v. Fox Television Stations, Inc.,
    
    556 U.S. 502
    , 515 (2009)). The Commission clears this bar.
    a.   The Commission’s Interpretation
    To begin with, Petitioners misconstrue USTA. As they do
    persistently, they gloss passages that find parts of the Title II
    Order to be permissible readings of the statute as mandating
    those readings—when the passages plainly do not do so. A
    case in point is the treatment of the TME. Petitioners say that
    “[t]his Court has already agreed that DNS and caching fall
    within the terms of the telecommunications management
    exception.” Mozilla Br. 43 (emphasis added) (citing 
    USTA, 825 F.3d at 705
    ). Yet all we said in USTA was that we were
    “unpersuaded” that the FCC’s “use of the telecommunications
    management exception was * * * unreasonable.” 
    USTA, 825 F.3d at 705
    . The Title II Order, in other words, adopted a
    permissible reading, though not a required one. This holding
    in no way bars the Commission from adopting a contrary view
    now—so long as it adequately justifies that view, as we find it
    has.
    Despite Petitioners’ objections, we find that the 2018
    Order engages in reasonable line-drawing for purposes of
    administering this amorphous exception. Relying on judicial
    24
    precedent, Department of Justice policy (developed pursuant to
    its duty to see that the settlement of its antitrust suit against
    AT&T was lawfully implemented), and prior Commission
    statements, the 2018 Order seems to envision a continuum with
    two poles: a user-centered pole and network management-
    centered pole. It locates a given service on the continuum and
    classifies it as falling within or outside the TME according to
    which pole it appears closest to. If a service is “directed at
    * * * customers or end users,” 2018 Order ¶ 36 (quoting
    United States v. Western Elec. Co., No. 82-0192, 
    1989 WL 119060
    , at *1 (D.D.C. Sept. 11, 1989)), or benefits users “in
    significant part,” 
    id. ¶ 38,
    or “predominantly,” 
    id. ¶ 42,
    it does
    not call for TME classification. We view this construction as
    an adequately justified departure from the Title II Order’s
    understanding of the TME in the face of a dauntingly
    ambiguous provision with inevitably fuzzy borderline cases
    and complex and possibly inconsistent (or at least orthogonal)
    policy implications.
    Given the Commission’s approach, it need not—and does
    not—deny that even those services properly classed under the
    TME benefit end users in some respect. It would be folly to
    deny as much given that the raison d’être of ISPs is to serve
    their customers. As one commenter notes, “To maintain * * *
    that something that is ‘useful’ to an end user cannot fall under
    the management exception is absurd, as the entire purpose of
    broadband is to be useful to end users * * * .” Public
    Knowledge Reply at 37, J.A. 2857; see 2018 Order ¶ 38 n.135;
    see also Mozilla Reply Br. 19–20.
    But a rule involving a spectrum or continuum commonly
    requires a decider to select a point where both ends are in play.
    Night and day are distinguishable, however difficult
    classification may be at dawn and dusk. The Commission’s
    way of construing the TME and applying its continuum-based
    25
    approach is not inconsistent with Public Knowledge’s point
    that “the entire purpose of broadband is to be useful to end
    users.” The Commission notes that its “focus remains on the
    purpose or use of the specific function in question and not
    merely whether the resulting service, as a whole, is useful to
    end-users.” 2018 Order ¶ 38 n.135. While DNS might play a
    role in managing a network, the Commission reasonably
    concluded that DNS “is a function that is useful and essential
    to providing Internet access for the ordinary consumer,” 
    id. ¶ 36,
    and that these benefits to the end user predominate over
    any management function DNS might serve. The Commission
    says that caching “benefits” users through “rapid retrieval of
    information from a local cache,” 
    id. ¶ 42,
    and can also be used
    “as part of a service, such as DNS, which is predominantly to
    the benefit of the user (DNS caching),” 
    id. (emphasis added).
    And it gives examples of services that in its view are genuine
    TME services: Simple Network Management Protocol
    (“SNMP”), Network Control Protocol (“NETCONF”), or Data
    Over Cable Service Interface Specification (“DOCSIS”)
    bootfiles for controlling the configuration of cable modems.
    
    Id. ¶ 36
    (quoting Sandvine Comments at 5, WC Dkt. No. 17-
    108 (July 14, 2017)). It observes that the Title II Order had
    essentially proceeded in a contrary manner, finding that the
    management-centered functionality of DNS predominated, so
    as to render it TME-worthy. “Although confronted with claims
    that DNS is, in significant part, designed to be useful to end-
    users rather than providers, the Title II Order nonetheless
    decided that it fell within the [TME].” 
    Id. ¶ 38
    (emphasis
    added). The Commission reasonably declined to follow this
    route (partly, as we shall see below, because it believed that it
    would cause the exception to swallow the rule in ways
    antithetical to its reading of Commission precedent and the
    Act’s goals). It chose a different, and reasonable, alternative.
    26
    b.   Modification of Final Judgment Precedent
    In adopting its approach to the TME, the Commission
    rested on precedent from a line of judicial decisions
    interpreting the Modification of Final Judgment (“MFJ”), a
    consent decree entered into between the Department of Justice
    and AT&T in 1982 as part of the breakup of the AT&T
    monopoly to create a set of independent regional Bell
    Operating Companies (“BOCs”). See United States v.
    American Tel. & Tel. Co., 
    552 F. Supp. 131
    , 225–232 (D.D.C.
    1982) (subsequent history omitted). This decree, which
    modified a 1956 consent decree and final judgment, spawned
    a long line of cases in which District Court Judge Harold
    Greene resolved conflicts over the decree’s limits on the
    BOCs’ permissible business ventures. The cases interpreted a
    broad array of terms of the consent decree, entered many
    modifications, and granted waivers, balancing a need to “avoid
    anticompetitive effects” (which might flow from BOC
    exploitation of their monopolies in telecommunications to
    dominate related services) with a hope of “bring[ing] th[e]
    nation closer to enjoyment of the full benefits of the
    information age” by facilitating “the efficient, rapid, and
    inexpensive dissemination of * * * information.” United
    States v. Western Elec. Co., 
    714 F. Supp. 1
    , 3, 5 (D.D.C. 1988),
    aff’d in part, rev’d in part, 
    900 F.2d 283
    (D.C. Cir. 1990).
    The Commission makes a good case for the
    persuasiveness of this precedent. First, the definition of
    “information service” in the 1996 Act––including the TME––
    is lifted nearly verbatim from the 1982 consent decree.
    Compare American Tel. & Tel. 
    Co., 552 F. Supp. at 229
    , with
    47 U.S.C. § 153(24). Second, in the case on which the
    Commission principally relies, the court was interpreting the
    MFJ’s TME equivalent and adopted a reading in keeping with
    its understanding of Department of Justice policy at the time.
    27
    In Western Electric, Judge Greene addressed the question
    whether the consent decree permitted the BOCs to offer relay
    services for customers who use “telecommunications devices
    for the deaf” (“TDDs”). 
    1989 WL 119060
    , at *1. The court
    held that, because TDD services involve “transformation of
    information”––“the very crux and purpose of the TDD relay
    services”––they “f[e]ll squarely” within the definition of
    “information services,” which covers the capability to
    “transform[] * * * information.” 
    Id. Accordingly offering
    the
    service ran afoul of Section II(D)(1) of the decree, see
    American Tel. & Tel. Co., 
    552 F. Supp. 131
    at 227, banning the
    BOCs from providing information services, see Western
    Electric, 
    1989 WL 119060
    , at *1. The BOCs argued as a
    fallback position that TDD services fell within the TME. 
    Id. Judge Greene
    made quick work of this, finding it “patently
    obvious that what is being sought * * * does not involve the
    internal management of Bell Atlantic” and hence was not
    TME-eligible. 
    Id. In support
    of this conclusion the court
    explained, relying on the Department of Justice Competitive
    Impact Statement, that the TME “was directed at internal
    operations, not at services for customers or end users.”
    Western Elec. Co., 
    1989 WL 119060
    , at *1 (emphasis added)
    (citing Department of Justice, Competitive Impact Statement in
    Connection with Proposed Modification of Final Judgment,
    Notice, 47 Fed. Reg. 7170, 7176 (Feb. 17, 1982)).
    It is this language that the Commission expressly invokes
    to ground its interpretation of the TME, stating that it (the
    Commission) “interpret[s] the concepts of ‘management,
    control, or operation’ in the [TME] consistent with” Judge
    Greene’s analysis. See 2018 Order ¶ 36. And as we have noted
    above, the Commission rightly acknowledges that being
    “directed at” one end of a spectrum does not rule out
    embodying certain aspects from the other end. The agency was
    within its rights to treat Judge Greene’s analysis––which in
    28
    essence interpreted the statutory provision at issue and squared
    with the government’s position supporting enforcement of the
    antitrust decree—as support for its construction of the TME.
    (As no party objected to the BOCs’ offering of TDD services,
    and BOC entry into this activity posed no anticompetitive risk,
    the court granted a waiver for their provision. See Western
    Elec. Co., 
    1989 WL 119060
    , at *2.)
    The Commission offers an added reason to put stock in the
    MFJ precedent: It believed that Petitioners’ approach risked
    causing the TME exception to swallow the “information
    services” category. It said, plausibly, that such an “expansive
    view” of the TME assigns it an outsized role, thereby
    “narrowing * * * the scope of information services” in a way
    that clashes with the Commission’s pre-1996 Act approach to
    cabining the “basic services” category, see 2018 Order ¶ 38 &
    n.135, and the 1996 Act’s imperative to “preserve the vibrant
    and competitive free market * * * for the Internet * * *
    unfettered by Federal or State regulation,” 
    id. ¶ 39
    (quoting 47
    U.S.C. § 230(b)(2)), which the Commission permissibly uses
    as a rationale to interpret a vague provision in a way that limits
    regulatory burdens. In sum, the Commission lawfully
    construed an ambiguous statutory phrase in a way that tallies
    with its policy judgment, as is its prerogative.
    Petitioners’ objections to the Commission’s classification
    of DNS and reliance on the MFJ do not convince us.
    Many of Petitioners’ objections pillory a straw man. They
    state that “[t]he statute asks whether a function is used ‘for the
    management, control, or operation of a telecommunications
    system,’ not whether the function also benefits consumers.”
    Mozilla Br. 45 (quoting 47 U.S.C. § 153(24)). But, as noted
    before, the Commission need not deny, for example, that
    “configuration management”––a function it slots under the
    29
    TME, see 2018 Order ¶ 36 & n.126—benefits end users in
    some respect. See Mozilla Reply Br. 19–20. It can simply say
    that DNS/caching and (for example) configuration
    management, respectively, adjoin opposite ends of the
    spectrum, one meriting inclusion in the TME and the other not.
    Petitioners observe that DNS renders broadband Internet
    access “more efficient in ways that are generally invisible to
    users,” a point that misses its mark entirely, or at best
    equivocates on the key point at issue. Mozilla Br. 45. While
    DNS is “invisible” in the sense that it is “under the hood,” so
    to speak, it remains “essential to providing Internet access for
    the ordinary consumer.” 2018 Order ¶ 36. Using a certain
    “configuration” tool or protocol might, say, make Internet
    traffic a bit faster or slower in the way that a metro’s use of
    varying rail technologies might influence train speeds. But an
    absence of DNS would be something different altogether,
    hobbling ordinary users in navigating the Web, akin to a total
    absence of signage in a metro. Signage, unlike DNS, is of
    course quite apparent, but their user-centered purposes are
    alike for all practical purposes. (We address in Part I.C.4
    Petitioners’ separate argument that users’ ability to obtain DNS
    from providers other than their ISPs precludes a finding of
    functional integration.) So the sense in which DNS is
    “invisible” to many end users is fully consistent with the
    agency’s rationale for locating it nearer to the user-centric
    pole—and hence beyond the TME.
    Finally, an argument made by amici on behalf of
    Petitioners as to DNS arguably aligns with claims made by the
    Commission’s amici and so may work in the agency’s favor.
    Petitioners’ amici assert in the context of functional integration
    (an issue to which we turn in Part I.C.4) that broadband Internet
    access is not functionally integrated with DNS because
    broadband access works perfectly well without DNS. “Internet
    30
    architects deliberately created DNS to be entirely independent
    from the IP packet transfer function,” Jordan/Peha Amicus Br.
    17, and “a BIAS provider’s DNS is an extraneous capability
    * * * not required for the core service,” 
    id. at 17–18
    (emphasis
    added). But if DNS is “extraneous” to operating the network,
    it is at least debatable whether DNS is used in “the
    management, control, or operation of a telecommunications
    system or the management of a telecommunications service.”
    Amici for the Commission make related points, observing that
    “[a]n app’s DNS translation transaction ends before the BIAS
    transmission begins,” “DNS transactions do not provide the
    BIAS provider with information about the best path to the
    destination,” and they “do not have the power to either
    optimize or impair the BIAS provider network.” Bennett et al.,
    Amicus Br. 13. Thus it is at least reasonable not to view DNS
    as a network management tool. 
    Id. at 13–14.
    Granted, Jordan
    and Peha remark that running DNS helps an ISP “reduce[] the
    volume of DNS queries passing through its network.”
    Jordan/Peha Amicus Br. 18. But in the deferential posture of
    Chevron the points quoted above by Jordan/Peha seem in part
    to support the Commission’s reading of the record (consistent
    with Bennett et al.) as showing that, whereas “little or nothing
    in the DNS look-up process is designed to help an ISP
    ‘manage’ its network,” 2018 Order ¶ 36, DNS is “essential to
    providing Internet access for the ordinary consumer,” 
    id., for whom
    “DNS is a must,” 
    id. ¶ 34
    (quoting Brand 
    X, 545 U.S. at 999
    ).
    The Commission extends the same logic to caching,
    though matters here are less obvious. It explains that caching
    “does not merely ‘manage’ an ISP’s broadband Internet access
    service and underlying network,” but “enables and enhances
    consumers’ access to and use of information online.” 2018
    Order ¶ 42. It makes clear that ISP caching service is not just
    “instrumental to pure transmission” but, rather, “enhances
    31
    access to information” by consumers by facilitating “rapid
    retrieval of information from a local cache or repository.” 
    Id. As the
    Title II Order had put it (albeit drawing a different
    lesson), “caching * * * provide[s] a benefit to subscribers in
    the form of faster, more efficient service,” 
    id. ¶ 368
    n.1037, by
    “enabling the user to obtain ‘more rapid retrieval of
    information’ through the network,” 
    id. ¶ 372
    (quoting Cable
    Modem Order, 17 FCC Rcd. at 4810 ¶ 17 & n.76); cf. Brand 
    X, 545 U.S. at 999
    –1000 (stating that “[c]acheing [sic] obviates
    the need for the end user to download anew information from
    third-party Web sites * * * , thereby increasing the speed of
    information retrieval”).
    Granted, some ISPs describe caching in terms indicating
    that it is a network management practice, and caching can help
    reduce ISPs’ costs. See Jordan/Peha Amicus Br. 20–21. But
    these facts are not determinative. The Commission is entitled
    to draw its own conclusions based on its (permissible)
    interpretation of the TME, so long as consistent with the
    record. Here it has done that. The Commission found (without
    contradiction in the record) that caching “enables and enhances
    consumers’ access to and use of information online.” 2018
    Order ¶ 42. In particular, “[t]he record reflects that without
    caching, broadband Internet access service would be a
    significantly inferior experience for the consumer, particularly
    for customers in remote areas, requiring additional time and
    network capacity for retrieval of information from the
    Internet.” 
    Id. That is
    so, the Commission maintains, even
    though encrypted traffic does not use caching, because “truly
    pervasive encryption on the Internet is still a long way off[] and
    * * * many sites still do not encrypt.” 
    Id. at n.147
    (citation
    omitted).
    32
    3.   Adjunct-to-Basic Precedent
    Finally, Petitioners raise a host of objections arising from
    the Commission’s “adjunct-to-basic” precedent, developed in
    the Computer Inquiries orders issued by the Commission. See
    In re Amendment of Section 64.702 of the Commission’s Rules
    and Regulations (Second Computer Inquiry), 77 F.C.C.2d 384
    (1980) (“Second Computer Inquiry”).
    Because in our view the precedents in this area are murky,
    raising convoluted questions of grafting older Commission
    interpretations onto the “information services” definition as
    applied to broadband Internet service, we find neither side’s
    recounting of adjunct-to-basic precedent fully compelling.
    Even though Congress’s creation of the TME may fairly be
    said to have “[t]rack[ed]” adjunct-to-basic in certain respects,
    
    USTA, 825 F.3d at 691
    , the Commission reasonably refused to
    be bound by facets of the analogy filtered through the lens of
    the Title II Order. The Commission’s chief task was to
    interpret the TME’s statutory text in a coherent, workable
    fashion and offer a reasonable rationale for altering its course,
    not to demonstrate that its reading is a tight fit with every
    aspect of adjunct-to-basic precedent. In fact, as we will see,
    that precedent is not the seamless web of Petitioners’ vision.
    Petitioners try to catch the Commission in a contradiction
    in a two-step approach. The agency, as we have seen, locates
    DNS and caching outside the TME. First, Petitioners invoke
    Commission precedent seeming to suggest that all or most
    adjunct-to-basic services would fall under the TME. Second,
    they observe that––whereas paradigmatic examples of adjunct-
    to-basic services such as speed dialing and call forwarding are
    undeniably useful to consumers and, per step one, belong under
    the TME––the Commission can give no satisfactory
    explanation for excluding DNS and caching from the TME. In
    33
    particular, Petitioners and commenters analogize DNS to
    ordinary directory assistance, which the Commission has
    dubbed adjunct-to-basic, since both services help direct users
    to their chosen endpoints. See, e.g., Mozilla Br. 46; Open
    Technology Institute (“OTI”) New America Comments at 33–
    34, J.A. 1631–1632. Whence the difference?
    To make sense of these claims and the Commission’s
    response, we need to review the basic terms. To preview, even
    if there are incongruities in the Commission’s treatment of the
    TME vis-à-vis the adjunct-to-basic idea, we see them as
    byproducts of drawing imperfect analogies.
    The FCC created a distinction between “basic services”
    and “enhanced services” in its Second Computer Inquiry, with
    the latter concept defined as follows:
    [T]he term “enhanced service” shall refer to services[]
    offered over common carrier transmission facilities
    used in interstate communications, which employ
    computer processing applications that act on the
    format, content, code, protocol or similar aspects of
    the subscriber’s transmitted information; provide the
    subscriber additional, different, or restructured
    information; or involve subscriber interaction with
    stored information. Enhanced services are not
    regulated under Title II of the Act.
    Second Computer Inquiry, 77 F.C.C.2d at 498; see also 47
    C.F.R. § 64.702(a).1 In contrast,
    1
    Note that the definition of “enhanced services” is restricted to
    services “offered over common carrier transmission.” Second
    Computer Inquiry, 77 F.C.C.2d at 498. For this reason, among
    others, at least one scholar has argued that caution is warranted in
    34
    In offering a basic transmission service * * * a carrier
    essentially offers a pure transmission capability over
    a communications path that is virtually transparent in
    terms of its interaction with customer supplied
    information.
    Second Computer Inquiry, 77 F.C.C.2d at 420 ¶ 96; see also 
    id. at 419–420
    ¶ 95 (“[A] basic transmission service should be
    limited to the offering of transmission capacity between two or
    more points suitable for a user’s transmission needs and subject
    only to the technical parameters of fidelity or distortion criteria,
    or other conditioning.”).
    The most contested category is a third: adjunct-to-basic. It
    arose to accommodate the reality that providers of ordinary
    telephone services wished to offer new technologies
    facilitating that service—technologies that would quite plainly
    fall under the “enhanced services” definition, though ordinary
    phone service was indisputably a “basic service.” To square
    the circle and avoid complexities of hybrid treatment, the
    Commission created an adjunct-to-basic bucket:
    In the [1985] NATA Centrex proceeding, the
    Commission defined adjunct services as services that
    ‘facilitate the provision of basic services without
    altering their fundamental character,’ and determined
    that such services should be treated as basic services
    drawing overly-neat analogies between “enhanced services” and
    “information services” on the one hand, and “basic services” and
    “telecommunications services,” on the other. See Robert Cannon,
    The Legacy of the Federal Communications Commission’s
    Computer Inquiries, 55 Fed. Comm. L.J. 167, 191–192 (2003)
    (explaining why all “enhanced services” are “information services”
    whereas not all “information services” are necessarily “enhanced
    services”).
    35
    for purposes of the Computer II rules, even though
    they might fall within possible literal readings of the
    definition of enhanced services.
    In re Bell Operating Companies, Petitions for Forbearance
    from the Application of Section 272 of the Commc’ns Act of
    1934, as Amended, to Certain Activities, 13 FCC Rcd. 2627,
    2639 ¶ 18 (CCB 1998) (“272 Forbearance Order”) (citation
    omitted).
    The Commission has set out two necessary criteria for a
    service to qualify as adjunct-to-basic:
    [C]arriers may use some of the processing and storage
    capabilities within their networks to offer optional
    tariffed features as ‘adjunct to basic’ services, if the
    features: (1) are intended to facilitate the use of
    traditional telephone service; and (2) do not alter the
    fundamental character of telephone service.
    In re Establishment of a Funding Mechanism for Interstate
    Operator Servs. for the Deaf, 11 FCC Rcd. 6808, 6816–6817
    ¶ 16 (1996) (“Operator Services Order”).
    Which services qualify as adjunct-to-basic? The answer
    covers a remarkably wide gamut, including “inter alia, speed
    dialing, call forwarding, computer-provided directory
    assistance, call monitoring, caller i.d., call tracing, call
    blocking, call return, repeat dialing, and call tracking, as well
    as certain Centrex features.” In re Implementation of the Non-
    Accounting Safeguards of Sections 271 and 272 of the
    Commc’ns Act of 1934, as Amended, 11 FCC Rcd. 21905,
    21958 ¶ 107 n.245 (1996) (“Non-Accounting Safeguards
    Order”). The same goes for “communications between a
    subscriber and the network itself for call setup, call routing, call
    cessation, calling or called party identification, billing, and
    36
    accounting,” In re N. Am. Telecommunications Ass’n Petition
    for Declaratory Ruling Under Section 64.702 of the
    Commission’s Rules Regarding the Integration of Centrex,
    Enhanced Servs., and Customer Premises Equip., 3 FCC Rcd.
    4385, 4386 ¶ 11 (1988) (“Centrex Order”) (citation omitted),
    and prepaid calling cards with built-in advertisements, see
    American Tel. & Tel. Co. v. FCC, 
    454 F.3d 329
    , 331 (D.C. Cir.
    2006)—though not “talking yellow pages” with
    advertisements, see 
    id. at 333;
    see also Northwest Bell Tel. Co.
    Petition for Declaratory Ruling, 2 FCC Rcd. 5986, 5988 ¶ 20
    (1987).
    Having laid out the key terms, we return to the parties’
    claims. We are satisfied with the Commission’s prioritization
    of the MFJ precedent and its way of squaring the adjunct-to-
    basic precedent with its treatment of DNS and caching.
    First, as explained above, the Commission had adequate
    grounds to focus on the 1982 MFJ’s definition of “information
    service,” which the 1996 Act took over virtually word for
    word.
    Second, devising a coherent and workable test for
    applying the statutory TME permissibly takes precedence in
    the Commission’s analysis over attempts to reach synthetic
    conformity between adjunct-to-basic precedent and the 1996
    Act’s terms. As the Court said in Brand X, we should “leav[e]
    federal telecommunications policy in this technical and
    complex area to be set by the Commission, not by warring
    
    analogies,” 545 U.S. at 992
    , whether crafted by courts,
    litigants, or Commissions past.
    Third, the Commission’s historical approach to adjunct-to-
    basic has hardly been clear-cut in its own right. As we have
    previously said, “it is difficult to discern any clear policy” in
    the Commission’s application of its “various formulations” of
    37
    what counts as adjunct-to-basic, so that “[t]he Commission’s
    rulings reflect a highly fact-specific, case-by-case style of
    adjudication.” American Tel. & Tel. 
    Co., 454 F.3d at 333
    .
    Given this lack of cohesion, we can hardly fault the current
    Commission for discounting the persuasive force of adjunct-
    to-basic analogies in interpreting and applying the 1996 Act’s
    TME in light of its policy views.
    Furthermore, the Commission’s definition of adjunct-to-
    basic services does not, as a linguistic matter, force the
    Commission’s hand in interpreting the TME. Just because an
    adjunct-to-basic service like speed dialing or directory
    assistance “facilitate[s]” telephone service, 
    USTA, 825 F.3d at 691
    , it hardly follows automatically that it also qualifies under
    the text of the TME, since it requires no contortion of English
    to say that (for example) directory assistance is, by and large,
    not used to “manage[]” or “control” or “operat[e]” a
    telecommunications system or service, 47 U.S.C. § 153(24).
    So the Commission had ample basis to dub the adjunct-to-
    basic line of analysis “potentially ambiguous precedent,” 2018
    Order ¶ 39, and depart from what it regarded as “loose
    analogies” devised in the Title II Order. “Because broadband
    Internet access service was not directly addressed in pre-1996
    Act Computer Inquiries and MFJ precedent, analogies to
    functions that were classified under that precedent must
    account for potentially distinguishing characteristics” as they
    relate to “technical details” and “regulatory backdrop.” 
    Id. These claims
    are not unreasonable.                 Whatever the
    Commission’s prior views on the relationship between basic
    services and their adjuncts, it is reasonable for the Commission
    to say that that rubric need not transfer over neatly to what it
    claims is not a basic service—broadband Internet access. See
    
    id. ¶ 40
    n.139. Hence there is little basis for the claim that
    adjunct-to-basic lore requires the Commission to jettison the
    38
    lesson of Judge Greene’s TDD ruling. See Western Elec. Co.,
    
    1989 WL 119060
    , at *1; see also Mozilla Br. 44.
    Fourth, the Commission identifies precedent from the
    Computer Inquiries themselves to support a reading of the
    TME as requiring location of particular services on a spectrum
    running between utility to carriers and utility to end users. A
    ruling invoked by the 2018 Order allowed BOCs to enable the
    tracing of Emergency 911 (“E911”) calls to the right location.
    The FCC’s Common Carrier Bureau said:
    Although the “telecommunications management
    exception” encompasses adjunct services, the storage
    and retrieval functions associated with the BOCs’
    automatic location identification databases provide
    information that is useful to end users, rather than
    carriers. As a consequence, those functions are not
    adjunct services and cannot be classified as
    telecommunications services on that basis.
    272 Forbearance Order, 13 FCC Rcd. at 2639 ¶ 18; see 2018
    Order ¶ 38 n.131. While the Title II Order had sought to
    distinguish this precedent on the ground that the benefit of
    E911 service was “unrelated to telecommunications,” Title II
    Order ¶ 368, it does not seem unreasonable for the current
    2018 Order to assume a broader view of telecommunications
    in its invocation of this precedent.
    Fifth, in any case, we are satisfied with the agency’s
    refusal to treat DNS like speed dialing, call forwarding, and
    directory assistance.
    As already noted, the Commission has adequate grounds
    not to hold its interpretation of the TME hostage to a chimerical
    hope for a perfect match-up with adjunct-to-basic precedent, in
    part because the regulatory history is so convoluted as to render
    39
    the likelihood of a “perfect” matchup remote. So even if the
    Commission’s interpretation of the TME comes at the cost of
    certain incongruities with the concept of adjunct-to-basic
    services, it reasonably regards alignment with the text and
    purposes of the 1996 Act, and the unifying policy vision
    animating the 2018 Order, as more weighty factors. See 2018
    Order ¶ 39.
    Moreover, implicit in the Commission’s analysis is a
    recognition of a key difference between the above services and,
    at the least, DNS. Those other services are plausibly described
    as adjunct-to-basic, i.e., “ancillary” and “optional” in relation
    to telephone service. Centrex Order, 3 FCC Rcd. at 4389 ¶ 30
    (quoting Second Computer Inquiry, 77 F.C.C.2d at 421 ¶ 98);
    cf. 2018 Order ¶ 40 n.138. Not so, the Commission says, for
    DNS, which “[f]or an Internet user * * * is a must.” 2018
    Order ¶ 34 (quoting Brand 
    X, 545 U.S. at 999
    ) (emphasis
    added) (internal quotation mark omitted). So DNS might well
    be seen to “alter the fundamental character of [the] service,”
    and would thus fail to satisfy one of the two criteria specified
    by the Commission (and quoted above) for a service to qualify
    as adjunct-to-basic. Operator Services Order, 11 FCC Rcd. at
    6816–6817 ¶ 16. This seems to distinguish DNS from such
    functions as speed dialing, call forwarding, and directory
    assistance, and thus square the Commission’s current treatment
    of DNS with the Commission’s prior treatment of those
    services as adjunct-to-basic, consistent with Judge Greene’s
    treatment of a certain type of directory assistance as falling
    within the TME. See Western Elec. Co., 
    1989 WL 119060
    , *1
    n.7; Mozilla Br. 44–45. (While some adjunct-to-basic services
    seem non-optional in certain respects, like “communications
    between a subscriber and the network itself for call setup * * *
    [and] call cessation,” Centrex Order, 3 FCC Rcd. at 4386 ¶ 11,
    this point simply reinforces the miscellaneous nature of the
    40
    adjunct-to-basic category, where “it is difficult to discern any
    clear policy,” American Tel. & Tel. 
    Co., 454 F.3d at 333
    .)
    We find the above considerations sufficient to uphold the
    agency’s position and hence do not address analogies to other
    MFJ precedents on technologies and services. See 2018 Order
    ¶¶ 35, 43–44. Even if Petitioners offer plausible interpretations
    of rulings on address translation and third-party storage
    services provided by the BOCs, we believe the Commission
    has given a sufficiently sturdy justification for treating DNS
    and caching as non-TME services apart from other MFJ-linked
    analogies. It has set forth a plausible reading of the highly
    ambiguous TME, adequately explained its basis for giving
    more credence to judicial MFJ precedent than to the Computer
    Inquiries in this context, and made a reasonable case as to why
    DNS and caching need not be classed under the TME.
    4.   Functional Integration
    Petitioners then open a new—and final—line of attack:
    Even if DNS and caching are “information services,” the
    Commission’s reliance on them to classify broadband as an
    “information service” was still unreasonable. Mozilla Br. 46.
    They make three arguments in support of this thesis, but none
    holds water. As a threshold matter, we note that Brand X
    already held it reasonable for the Commission to conclude that
    DNS and caching are information services functionally
    integrated with the offering of “Internet access [service]” “to
    members of the public.” Brand 
    X, 545 U.S. at 1000
    (quoting
    Stevens Report ¶ 79).
    Petitioners first play up the facts that users may obtain
    DNS from providers other than their ISPs and that caching is
    not utterly indispensable. According to them, because “a user
    can easily configure her computer to use a third-party DNS
    server and content can be delivered even without caching,”
    41
    Mozilla Br. 46, especially in the context of encrypted
    communications that occur without caching, 
    id. at 46–47,
    it
    follows that DNS and caching are not “inextricably intertwined
    with the transmission component” of broadband, 
    id. at 46.
    These facts ostensibly yield a “contradict[ion]” in the agency’s
    position, since one’s ISP-provided DNS and caching are not
    “indispensable” after all. 
    Id. We find
    the objection misguided. As the Commission
    explained, “[T]he fact that some consumers obtain [DNS and
    caching] from third-party alternatives is not a basis for ignoring
    the capabilities that a broadband provider actually ‘offers.’”
    2018 Order ¶ 50. Given the ambiguity in the term “offe[r],”
    see Brand 
    X, 545 U.S. at 989
    –990, the Commission’s preferred
    reading of that term rather than the Title II Order’s “narrower
    interpretation,” 2018 Order ¶ 50—which would foreclose the
    Commission’s view quoted above—is permissible.                  In
    elucidating the ambiguity, Brand X said that “[t]he entire
    question is whether the products here are functionally
    integrated (like the components of a car) or functionally
    separate (like pets and leashes). That question turns not on the
    language of the Act, but on the factual particulars of how
    Internet technology works and how it is provided, questions
    Chevron leaves to the Commission to resolve in the first
    
    instance.” 545 U.S. at 991
    . The agency reasonably concluded
    that, notwithstanding the availability of alternative sources of
    DNS, a market where “the vast majority of ordinary
    consumers”—“[a]pproximately 97 percent”—“rely upon the
    DNS functionality provided by their ISP,” 2018 Order ¶ 34 &
    n.109 (citation omitted in second quotation), as “part and parcel
    of the broadband Internet access service,” 
    id. ¶ 42,
    meets
    Brand X’s requirements for functional integration. Chevron
    licenses these interpretive steps.
    42
    Second, Petitioners focus on what they dub the “relative
    importance” of the “inextricably intertwined” components at
    play—DNS/caching and high-speed transmission. Mozilla Br.
    47. The transmission aspect, they say, overshadows DNS and
    caching in “importance,” where that concept is understood in
    terms of what “consumers focus on,” 
    id. (quoting USTA,
    825
    F.3d at 698), and what aspect has “dominance in the broadband
    experience,” id.; see also Mozilla Reply Br. 24. The
    supposedly miniscule “importance” of DNS and caching in
    consumers’ minds when using the Web means that those
    functionalities cannot be “inextricably intertwined” with high-
    speed transmission—and hence broadband cannot be an
    “information service” based on DNS and caching services.
    These claims are unavailing. To begin with, Petitioners’
    invocation of USTA is yet again misplaced. There we said
    simply that the Commission reasonably determined what
    “consumers focus on,” 
    USTA, 825 F.3d at 698
    , without holding
    that that is the only permissible view. Moreover, nowhere does
    Brand X say that a finding of “functional integration” requires
    a finding as to “dominance” or “relative importance” in the
    sense Petitioners imply. Average consumers, presumably, are
    no less in the dark now about the inner workings of DNS and
    caching than they were in 2005 when the Court decided Brand
    X. Yet that did not keep the Court from finding reasonable the
    FCC’s position that DNS and caching were functionally
    integrated with high-speed transmission. However “consumer
    perception” might be understood, it is not unreasonable to
    interpret it as reflected in a consumer’s use of the offered
    service as a whole and the functionalities that make that
    possible, even if the consumer has no inkling of what is “under
    the hood.” As Brand X said, “Seen from the consumer’s point
    of view, the Commission concluded, cable modem service is
    not a telecommunications offering because the consumer uses
    the high-speed wire always in connection with the information-
    43
    processing capabilities provided by Internet access * * * 
    .” 545 U.S. at 988
    (emphasis added). So it is perfectly sensible for the
    agency to retort that “[w]hile the typical broadband subscriber
    may know little or nothing about DNS or caching, that
    subscriber would keenly feel the absence of those functions” in
    everyday Web use. Commission Br. 43.
    Petitioners reply that the argument proves too much, as
    Web browsers and search engines are also essential to the
    consumer’s Internet experience. See Mozilla Reply Br. 24.
    But quite apart from the fact that the role of ISP-provided
    browsers and search engines appears very modest compared to
    that of DNS and caching in ISPs’ overall provision of Internet
    access, Petitioners are in a weak posture to deny that inclusion
    of “search engines and web browsers” could support an
    “information service” designation, 
    id., since those
    appear to be
    examples of the “walled garden” services that Petitioners hold
    up as models of “information service”-eligible offerings in
    their gloss of Brand X.
    Finally, Petitioners contend that even if DNS and caching
    were functionally integrated with transmission, that “does not
    automatically lead to an information service classification.”
    Mozilla Br. 47. “The FCC could not have reasonably
    concluded that a drop of DNS and caching in a sea of
    transmission transformed the service into something that could
    properly be called an information service.” 
    Id. The idea
    seems
    to be that ISPs now offer fewer “walled garden” services of the
    kind consumers mostly care about than they did in the era of
    the 2002 Cable Modem Order and Brand X, so that basing an
    “information service” designation on DNS and caching alone
    is currently as dubious as saying that a few golden threads
    interwoven in an ordinary sweater turn the sweater into a
    golden garment. “Congress could not have intended inclusion
    of two minor auxiliary information services to transform the
    44
    classification of what is otherwise overwhelmingly
    telecommunications.” Mozilla Reply Br. 25.
    But the Supreme Court has never imposed or even hinted
    at such a quantitative standard to determine whether
    inextricably intertwined functionalities can justify an
    “information service” classification. We see no basis for
    launching such a notion on our own. Had the Court thought
    along Petitioners’ lines, it could have sided with challengers in
    Brand X by saying that—when users wander beyond ISPs’
    proprietary    services—the        quantum     of    ISP-offered
    “information services” shrinks so greatly in proportion to the
    transmission aspect that in that realm they are accepting an
    “offering” of standalone telecommunications service. The
    Court took the opposite tack, marshaling DNS and caching as
    examples of “information services” operative when users
    “access[] content provided by parties other than the cable
    company,” Brand 
    X, 545 U.S. at 998
    , thereby rendering the
    Commission’s classification “reasonable,” 
    id. at 1000.
    Petitioners try to get mileage from a hypothetical in Brand
    X involving the bundling of telephone service with voicemail,
    see Mozilla Br. 47, but the attempt falls far short. Challengers
    in Brand X had argued that, on the FCC’s theory in that case, a
    telephone-plus-voicemail bundle would have to be classified as
    an “information service,” making it far too easy to evade the
    reach of Title II. The Court declined to “decide whether a
    construction that resulted in these consequences would be
    unreasonable”—because the hypothetical misfired. Brand 
    X, 545 U.S. at 997
    . Its result “d[id] not follow from the
    construction the Commission adopted,” 
    id., which was
    “more
    limited than respondents [had] assume[d],” 
    id. at 998.
    That is,
    the FCC’s position “d[id] not leave all information-service
    offerings exempt from mandatory Title II regulation.” 
    Id. at 997
    (emphasis added). A landline telephone service provider
    45
    could not—on the FCC’s theory as interpreted by the Court—
    get away with “packag[ing] voice mail [or a time-of-day
    announcement] with telephone service” and on that basis take
    landline service out of Title II. 
    Id. at 998.
    That gimmick must
    fail because add-ons like voicemail and time-of-day
    announcements are separable from “pure transmission” in a
    way that is not true for DNS and caching in relation to
    broadband. Whereas landline service “transmits information
    independent of the information-storage capabilities provided
    by voice mail,” and is “only trivially dependent on the
    information service the [time-of-day] announcement
    provides,” 
    id., broadband involves
    “functional[] integrat[ion]”
    between “high-speed transmission,” which is “necessary to
    provide Internet service,” with “further processing of
    information,” 
    id., e.g., in
    the form of DNS and caching, see 
    id. at 998–1000.
    The Brand X Court, in short, made plain that the
    challengers’ hypothetical was simply irrelevant.          Since
    Petitioners develop no credible explanation as to why the
    current Commission’s theory is any more vulnerable to the
    hypothetical discredited by Brand X, we can see no merit in
    their criticism.
    To summarize, just as the USTA petitioners “fail[ed] to
    provide an unambiguous answer to” whether “broadband
    providers make a standalone offering of telecommunications,”
    
    USTA, 825 F.3d at 702
    , Petitioners have not done so here. Nor
    have they shown the Commission’s stance to be unreasonable.
    We conclude, under the guidance of Brand X, that the
    Commission permissibly classified broadband Internet access
    as an “information service” by virtue of the functionalities
    afforded by DNS and caching.
    46
    II.   Mobile Broadband Classification
    In keeping with its classification of broadband Internet as
    an “information service” not subject to Title II, the
    Commission classified mobile broadband as a “private mobile
    service”—a classification that under the statute automatically
    exempted it from common carriage treatment—just as the sole
    alternative classification available under the statute would have
    automatically required common carriage treatment. See 47
    U.S.C. § 332(c)(1) & (2). We uphold this classification as
    reasonable under Chevron. As we said in USTA (and as the
    Title II Order and Petitioners recognize), the Commission has
    compelling policy grounds to ensure consistent treatment of the
    two varieties of broadband Internet access, fixed and mobile,
    subjecting both, or neither, to Title II.
    A. The 2018 Order’s Provisions
    Title III of the Act, as amended by Congress in 1993, Pub.
    L. No. 103-66, 107 Stat. 312, establishes two mutually
    exclusive categories of mobile services—“commercial” and
    “private.” Because the latter is defined negatively, as “any
    mobile service * * * that is not a commercial service or [its]
    functional equivalent,” 47 U.S.C. § 332(d)(3) (emphases
    added), the key definition is that of “commercial mobile
    service.” And the statute defines it as “any mobile service * * *
    that is provided for profit and makes interconnected service
    available” to the public. 
    Id. § 332(d)(1).
    “[I]nterconnected
    service,” in turn, is a “service that is interconnected with the
    public switched network (as such terms are defined by
    regulation by the Commission) * * * .” 
    Id. § 332(d)(2).
    The 2018 Order readopted definitions of “public switched
    network” and “interconnected service” that the Commission
    had set out in the Second CMRS Report and Order of 1994,
    47
    2018 Order ¶ 74; see In re Implementation of Sections 3(n) and
    332 of the Commc’ns Act; Regulatory Treatment of Mobile
    Servs., 9 FCC Rcd. 1411, 1516–1517 § 20.3 (1994) (“Second
    CMRS Report and Order”), and maintained until the Title II
    Order of 2015.
    First, the Commission now defines “the public switched
    network” as:
    [A]ny common carrier switched network, whether by
    wire or radio, including local exchange carriers,
    interexchange carriers, and mobile service providers,
    that use[s] the [ten-digit] North American Numbering
    Plan [NANP] in connection with the provision of
    switched services.
    2018 Order ¶ 66 (second alteration in original); see 47 C.F.R.
    § 20.3; see also CMRS Report and Order, 9 FCC Rcd. at 1517
    § 20.3. The Title II Order, by contrast, modified that definition
    by inserting the phrase “or public IP addresses”:
    [T]he network that includes any common carrier
    switched network, whether by wire or radio, including
    local exchange carriers, interexchange carriers, and
    mobile service providers, that use[s] the North
    American Numbering Plan, or public IP addresses, in
    connection with the provision of switched services.
    Title II Order ¶ 391 (second alteration in original) (emphasis
    added). This insertion assisted the Title II Order in making a
    case that mobile broadband was “interconnected” with the
    newly redefined public switched network.
    As for “interconnected service,” the Commission now
    defines it as “a service ‘that gives subscribers the capability to
    communicate to or receive communication from all other users
    48
    on the public switched network.’” 2018 Order ¶ 77 (quoting
    47 C.F.R. § 20.3); see Second CMRS Report and Order, 9 FCC
    Rcd. at 1516 § 20.3. Restoring “all” was again a reversion to
    the agency view since the 1994 Second CMRS Report and
    Order. See 2018 Order ¶ 77. The Title II Order had deleted
    that word, explaining the change at least in part as a recognition
    of the already accepted view that services reaching North
    American Numbering Plan (“NANP”) numbers generally
    could    meet     Section     332(d)(1)’s      requirement      of
    interconnectedness despite the existence of some blocked
    NANP numbers (such as 900 numbers). See Title II Order
    ¶ 402 & n.1172.
    Finally, the Commission readopted the Second CMRS
    Report and Order’s “functional equivalence” test, which
    considers “a variety of factors” in making that determination.
    2018 Order ¶ 83. The “principal inquiry will involve
    evaluating consumer demand for the service in order to
    determine whether the service is a close substitute for [a
    commercial mobile radio service],” which entails “evaluat[ing]
    whether changes in price for the service under examination, or
    for the comparable commercial service, would prompt
    customers to change from one service to the other.” Second
    CMRS Report and Order, 9 FCC Rcd. at 1447–1448 ¶ 80.
    Viewing these definitions in the policy-driven mode
    endorsed by Brand X (see, 
    e.g., 545 U.S. at 992
    ), the
    Commission observed: “No one disputes that, consistent with
    the Commission’s previous findings, if mobile broadband
    Internet access service were a commercial mobile service for
    purposes of § 332 and were also classified as an information
    service, such a regulatory framework could lead to
    contradictory and absurd results.” 2018 Order ¶ 82. As we
    said in USTA, clashing classifications between mobile and
    fixed broadband services would yield a “counterintuitive
    49
    outcome” in which a “mobile device could be subject to
    entirely different regulatory rules depending on how it happens
    to be connected to the internet at any particular 
    moment.” 825 F.3d at 724
    . Just as the Title II Order strove to avoid a
    “statutory contradiction” that would arise if mobile broadband
    were classified differently from broadband Internet, see Title II
    Order ¶ 403, the Commission now opted to treat mobile
    broadband as a “private mobile service.”                 Parallel
    classifications, it explained, would “further[] the Act’s overall
    intent to allow information services to develop free from
    common carrier regulations” and tally with the Commission’s
    policy rationales for classifying broadband as an “information
    service.” 2018 Order ¶ 82; see also 
    id. ¶ 83
    n.308; cf. Wireless
    Broadband Order 5919–5921 ¶¶ 48–56 (2007) (explaining
    importance of avoiding a contradictory outcome in classifying
    broadband Internet access and mobile broadband). Petitioners
    accept the general proposition, though with an inverse spin:
    They say that if we were to reject the Commission’s
    “information service” classification, that refusal in itself
    “would be a powerful factor in favor of concluding that mobile
    BIAS is a commercial mobile service,” because it “would be
    unreasonable to construe the statute to create * * * a
    contradiction.” Mozilla Br. 79.
    Of course the Commission’s legitimate policy purposes
    could not justify its indulging in unreasonable interpretations
    of the controlling provisions. But it is obliged to interpret the
    statute as a whole, and interpretations needed to avert
    “statutory contradiction” (really, self-contradiction) ipso facto
    have a leg up on reasonableness.
    B. Objections to the Classification
    We now analyze Petitioners’ three specific objections.
    50
    1.   Meaning of “Public Switched Network”
    First, Petitioners protest the Commission’s reversion to the
    pre-Title II Order definition of “the public switched network.”
    Their initial argument in support of that claim is an entirely
    misplaced reliance on passages in USTA where we rejected
    challengers’ argument “that the statutory phrase ‘public
    switched network’ must be understood as if Congress had used
    the phrase ‘public switched telephone 
    network.’” 825 F.3d at 718
    (first emphasis added). Rejection of that claim meant,
    under Chevron, that we were required to affirm the Title II
    Order so long as it had “permissibly considered a network
    using [both] telephone numbers and IP addresses to be a
    ‘public switched network.’” 
    Id. (emphasis added).
    Thus we
    said that the phrase “public switched network” “by its plain
    language can reach beyond telephone networks alone.” 
    Id. at 717–718
    (emphasis added). In light of Chevron and Brand X,
    there is no basis for doubting that we meant just what we said,
    leaving the door open to a different, adequately supported,
    reading, which the Commission has provided here.
    We likewise see no basis for a view that the statutory
    language compels the Commission to retain the phrase “or
    public IP address,” which the Title II Order had inserted into
    the definition of “public switched network.” We note, as we
    did in USTA, that the agency acts under express statutory
    authority to modify its definition: The term “the public
    switched network” is to be “defined by regulation by the
    Commission.” 47 U.S.C. § 332(d)(2); see 
    USTA, 825 F.3d at 717
    –718; Title II Order ¶ 396. Further, the Commission offers
    multiple textual grounds in favor of its reading, emphasizing
    Congress’s use of the definite article (“the public switched
    network”) and “network” in the singular, suggesting that
    “Congress intended ‘public switched network’ to mean a
    51
    single, integrated network.” 2018 Order ¶ 76; cf. United States
    v. Manafort, 
    897 F.3d 340
    , 347 (D.C. Cir. 2018) (“The use of
    the definite article ‘the’ * * * suggests a narrow reading.”).
    The Commission also points to contemporaneous
    understandings of “public switched network” by the
    Commission and courts suggesting that it was commonly
    understood to refer to the “public switched telephone
    network.” See 2018 Order ¶ 75. It singles out Commission
    precedent going back to 1981, see 
    id. at n.276,
    as well as cases
    from this circuit, referring to “public switched network” and
    “public      switched     telephone     network”     seemingly
    interchangeably, see 
    id. at n.279.
    It was against this
    background that Congress added the phrase “the public
    switched network” to Title III in 1993. Although mobile
    broadband was not yet in widespread use, these textual points
    and identification of contemporaneous usage and meaning lend
    support to the Commission’s gloss of that term to mean a
    “singular network that ‘must still be interconnected with the
    local exchange or interexchange switched network as it
    evolves.’” 
    Id. ¶ 76
    (quoting Wireless Broadband Order, 22
    FCC Rcd. at 5918 ¶ 45).
    In parrying the USTA petitioners’ claims, we addressed
    two other uses of “public switched network” in the United
    States Code. Pointing to 18 U.S.C. § 1039(h)(4)’s express use
    of “public switched telephone network,” 
    USTA, 825 F.3d at 717
    , we found that use of this phrase contradicted petitioners’
    idea that Congress had intended to assign a more “restrictive
    meaning” to “public switched network” in Section 332. But
    the language occurs in Title 18 of the United States Code
    (devoted to the rather different subject of criminal law), and
    was enacted in 2007, two features rendering it insufficient as a
    basis to compel either the narrow reading of Congress’s 1993
    addition to Title 47 advanced by the USTA petitioners, or the
    broad one advanced by the current Petitioners. Further, despite
    52
    some language in the 2018 Order to the effect that “Congress
    intended ‘public switched network’ to mean a single,
    integrated network” that was not “meant to encompass multiple
    networks whose users cannot necessarily communicate or
    receive communications across networks,” 2018 Order ¶ 76,
    the Commission here did not suppose that its reading was
    required. Rather it said simply that that reading was “the best
    reading of the Act,” 
    id. ¶ 74,
    “more consistent with the text of
    section 332(d)(2),” 
    id. ¶ 76,
    and “better reflects Congressional
    intent,” 
    id. Section 1039(h)(4)
    at most helped the USTA court
    find that the petitioners in that case failed to carry their burden
    of showing that the Title II Order violated the unambiguous
    meaning of “public switched network.” The Commission’s
    burden here was only to show the reasonableness of its
    interpretation. It did so, and without running afoul of the
    doctrine that we must remand a decision when the agency rests
    its result on a mistaken notion that it is compelled by statute.
    See, e.g., Prill v. NLRB, 
    755 F.2d 941
    , 947–948 (D.C. Cir.
    1985).
    Similarly in USTA we rejected a claim that 47 U.S.C.
    § 1422(b)(1)(ii)’s use of the term “public switched network”—
    in a context pretty clearly meaning only the telephone
    network—meant that the Commission was required to so limit
    its definition for purposes of Section 332. We responded by
    pointing out that Congress was merely using the term in the
    sense established by the Commission’s then longstanding
    definition (including “telephone”); accordingly the section
    could not have reasonably been thought “to divest the
    Commission of the definitional authority” expressly granted in
    Section 332. 
    USTA, 825 F.3d at 718
    . In short, we simply
    refused to regard the provision as inflicting an implied
    constraint on the Commission’s definitional authority. 
    Id. Just so
    here, as well.
    53
    Next, Petitioners stress the need for Commission policy to
    keep pace with technological innovation. They in essence
    reiterate USTA’s “agree[ment] with the Commission that, in
    granting the Commission general definitional authority,
    Congress ‘expected the notion [of the public switched network]
    to evolve and therefore charged the Commission with the
    continuing obligation to define it.’” 
    USTA, 825 F.3d at 718
    (second alteration in original) (quoting Title II Order ¶ 396).
    But, given the ambiguity in the statutory text, the manner in
    which the Commission chooses to carry out that “continuing
    obligation” is naturally and permissibly driven by its
    underlying policy judgments (subject of course to the
    possibility of technological changes so substantial and material
    that they render the policy judgment irrational, which the
    Commission reasonably concluded were not shown here).
    Noting that the Title II Order expressly invoked its policy
    reasons for broadening the concept of public switched network,
    2018 Order ¶ 78 (citing Title II Order ¶ 399), the Commission
    similarly invoked its policy choices to restore the agency’s
    previous view, id.; see also 
    id. ¶ 82.
    The Commission also reasoned that it wished to
    harmonize its definition of “public switched network” with that
    of an “interconnected service.” See 2018 Order ¶ 77. Because
    it restored the word “all” to the definition of “interconnected
    service” (as discussed shortly), it had good grounds to omit
    “public IP address” from “public switched network.” The
    proliferation of “smart” devices with IP addresses, such as
    “servers, thermostats, washing machines, and scores of other
    devices in the Internet of Things,” Verizon Comments at 48,
    J.A. 1968; see also ISPs’ Br. 18, 21–22, threatened such a
    definition with a new complication. If those devices were part
    of the public switched network, it might yield the dubious
    upshot that mobile voice would no longer be a commercial
    mobile service because its subscribers could not interconnect
    54
    with “all” endpoints on the network, “such as IP-enabled
    televisions, washing machines, and thermostats, and other
    smart devices” incapable of voice communications. 2018
    Order ¶ 76 n.284. Hence a restoration of “all” in the definition
    of “interconnected service,” coupled with an important
    technological development, gave added reason to restore the
    agency’s prior view of the “public switched network.”
    In sum the Commission amply justified its return to the
    CMRS definition of “public switched network.”
    2.     Whether Mobile Broadband Is an
    “Interconnected Service”
    Second, Petitioners argue that—even on the
    Commission’s definition of “public switched network”—it is
    unreasonable to conclude that mobile broadband is not an
    “interconnected service.” See Mozilla Br. 75–79. We
    disagree.
    As noted previously, an “interconnected service,” in the
    Commission’s view, “gives subscribers the capability to
    communicate to or receive communication from all other users
    on the public switched network.” 47 C.F.R. § 20.3 (emphasis
    added). The Commission’s core contention is that Voice-over-
    IP (“VoIP”)—the generic name for voice calls transmitted over
    the Internet—is “a separate application or service” from mobile
    broadband. 2018 Order ¶ 80. Hence the capabilities it affords
    cannot turn mobile broadband, a separate service, into an
    “interconnected service” as defined above.             “[M]obile
    broadband Internet access as a core service is distinct from the
    service capabilities offered by applications (whether installed
    by a user or hardware manufacturer) that may ride on top of it.”
    
    Id. ¶ 81.
    The Commission instead centers its inquiry on the
    capabilities mobile broadband service itself affords, rather than
    55
    “whether [it] allows consumers to acquire other services that
    bridge the gap to the telephone network.” 
    Id. ¶ 80
    (quoting
    Verizon Comments at 47, J.A. 1967). As the Commission
    explained in its 2007 Wireless Broadband Order, its finding
    that mobile broadband was not an “interconnected service” did
    not prejudge how other services—such as “interconnected
    VoIP”—should be classified. Wireless Broadband Order, 22
    FCC Rcd. at 5918 ¶ 46; cf. American Council on Educ. v. FCC,
    
    451 F.3d 226
    , 227–229, 228 n.1 (D.C. Cir. 2006) (taking for
    granted that broadband and VoIP are distinct services in
    upholding a Commission decision).
    Petitioners by contrast contend, reprising the Title II
    Order, that mobile broadband service meets the above
    definition of “interconnected service” by virtue of
    functionalities afforded by VoIP. VoIP applications––like
    Apple FaceTime, Google Voice, and Skype––are now
    ubiquitous and easy to use. “For most users, the only
    operational difference between communicating with all other
    users, including all NANP endpoints, through a mobile voice
    call versus VoIP is which icon they press.” Mozilla Br. 77.
    This holds true, Petitioners say, whether applications are
    preinstalled on mobile devices or downloaded by users. Some
    carriers themselves offer preinstalled Wi-Fi calling and Voice-
    over-LTE capabilities that permit users to make voice calls to
    NANP numbers via broadband without needing any additional
    applications. See OTI New America Reply at 56–59, J.A.
    2791–2794; see also Mozilla Br. 76–77. As Petitioners see it,
    VoIP functionalities have become part and parcel of mobile
    broadband service itself and give subscribers “capabilit[ies]”
    that make mobile broadband an “interconnected service.”
    Some commenters frame the issue as a claim that
    technological change demands persistence in the choice of the
    Title II Order. Whereas “[t]he Commission’s findings in the
    56
    2007 Wireless Broadband Ruling were reasonable,” they are so
    no longer, given “the increasing convergence of mobile service
    offerings (mobile carriers market ‘data’ packages, not separate
    voice calling and broadband products) and of mobile networks
    * * * .” OTI New America Reply at 55, J.A. 2790; see Title II
    Order ¶ 401. In part for that reason Petitioners say, quoting
    USTA, that the distinction between “(i) mobile broadband
    alone enabling a connection, and (ii) mobile broadband
    enabling a connection through use of an adjunct application
    such as VoIP” is “elusive,” 
    USTA, 825 F.3d at 721
    , and,
    therefore, they claim, no longer permissible, Mozilla Br. 77.
    We do not see it Petitioners’ way. In our view the
    Commission adequately defended its approach and responded
    to relevant objections, in keeping with its inclusion of the word
    “all” in the definition of “interconnected service.”
    First, Petitioners yet again overread USTA. There we
    spoke of an “elusive” line in making the simple point that
    “[n]othing in the statute * * * compels the Commission to
    draw” that line. 
    USTA, 825 F.3d at 721
    . That proposition is
    quite consistent with the proposition that nothing in the statutes
    bars the Commission from adopting the distinction—many
    legal distinctions are, after all, rather elusive. We fail to see
    our language in USTA as foreclosing the Commission’s current
    view of what is part of mobile broadband service.
    Second, as alluded to earlier, the agency previously drew
    this “elusive” distinction at least since 2007, interrupted of
    course by the Title II Order, even while it fully and expressly
    recognized the availability and significance of VoIP, as it said
    in the Wireless Broadband Order:
    Mobile wireless broadband Internet access service in
    and of itself does not provide this capability to
    communicate with all users of the public switched
    57
    network. For example, mobile wireless broadband
    Internet access services do not use the North
    American Numbering Plan to access the Internet,
    which limits subscribers’ ability to communicate to or
    receive communications from all users in the public
    switched network. Instead, users of a mobile wireless
    broadband Internet access service need to rely on
    another service or application, such as certain voice
    over Internet Protocol (VoIP) services that rely in part
    on the underlying Internet access service, to make
    calls to, and receive calls from, “all other users on the
    public switched network.”           Therefore, mobile
    wireless broadband Internet access service itself is not
    an “interconnected service” as the Commission has
    defined the term in the context of section 332.
    Wireless Broadband Order, 22 FCC Rcd. at 5917–5918 ¶ 45;
    see also 2018 Order ¶ 81 n.300; Title II Order ¶ 400 & n.1167
    (quoting language from the above and acknowledging the
    Commission’s previous conclusion).
    Third, technological advances since the 2007 Wireless
    Broadband Order do not invalidate the Commission’s way of
    drawing the line between services. Of course technological
    change may sometimes require regulatory reclassification. But
    it is not clear why the changes identified by commenters are an
    example of such a requirement, as we have noted above. The
    proliferation of VoIP and prevalence of its use are orthogonal
    to the Commission’s point about the relationship between
    mobile broadband and VoIP. Whether VoIP applications are
    used by many users or few, and whether they are preinstalled
    or acquired on an ad hoc basis, the question is whether VoIP
    functionalities are part of the service at issue here—mobile
    broadband service—or constitute other services that mobile
    broadband allows users to access. Similarly, ease of
    58
    interoperability is irrelevant to the Commission’s way of
    framing whether there are one or two services involved in
    facilitating a call, no matter how seamless the toggling may be
    from a user’s standpoint. Although a user’s ability to move
    easily between making mobile voice calls and VoIP calls (or to
    toggle automatically between mobile voice and VoIP on a
    single call) may, as the Title II Order had put it, have “blurred
    the distinction between services using NANP numbers and
    services using public IP addresses,” Title II Order ¶ 401
    (emphasis added), blurring is not erasing. The Commission
    observes that “even if providers are increasingly offering voice
    service and mobile broadband Internet access service together,
    this does not support classifying and regulating the latter in the
    same way as the former.” 2018 Order ¶ 81 n.302. Similarly,
    the Commission comments that there is nothing odd about
    subjecting carriers offering “multiple services of mixed
    classification” to regulation on a service-by-service basis, and
    thus, for example, being “regulated as common carriers to the
    extent they offer services that are subject to Title II regulation.”
    
    Id. (citing 47
    U.S.C. § 153(51)). (The Commission declined to
    determine whether Wi-Fi calling and Voice-over-LTE could
    qualify as “interconnected services” because, on the same logic
    as above, it treats them as distinct services “subject to separate
    classification determinations.” Id.)
    Indeed, the 2018 Order recognized “the evolution of
    mobile network technologies that have blurred the [physical]
    lines between circuit switched and packet switched networks,”
    and agreed with commenters arguing that the “public switched
    network should not be defined in a static way” (emphasis
    added) and should account for “continuous[] grow[th] and
    chang[e].” 2018 Order ¶ 78 n.290. But it believed that this
    flexibility must be constrained by fidelity to what it viewed as
    the best reading of the statute, so that “the public switched
    network remains a single integrated network incorporating the
    59
    traditional local and interexchange telephone networks and
    enabling users to send or receive messages to or from all other
    users.” 
    Id. Fourth, no
    precise conceptual framework dictated to either
    the current Commission or the one that issued the Title II Order
    how it should parse the relationship between mobile broadband
    and VoIP. None of the parties identifies (and we have not
    found) either a set of regulatory definitions purporting to draw
    lines between “applications” and “services,” or a set of
    generally accepted linguistic practices drawing such a line or
    generally governing when the capability of apps that are usable
    with a service should be taken to belong to the “capabilities”
    of the service. As a matter of ordinary language there surely is
    no problem with the Commission’s take. If someone tells a
    friend, “I just got a great new tablet with mobile broadband,” it
    would hardly be a solecism for the friend to reply, “Great—
    does your service let me reach you from my landline?” Of
    course the new tablet owner might reply, “Not now—but it
    could if I set up a Google Voice number,” but that only shows
    the linguistic ambiguity. Given the absence of any norms
    pressing in Petitioners’ favor, we cannot condemn as
    impermissible the Commission’s choice to draw the line in a
    way that averted what it reasonably viewed as statutory self-
    contradiction, echoing the Title II Order’s reasoning in
    Paragraph 403, which was accepted by USTA, 
    see 825 F.3d at 724
    .
    Fifth, attempts to catch the Commission in self-
    contradiction are unavailing. Commenters and Petitioners say
    that if the Commission’s theory were properly applied, mobile
    voice would turn out not to be an “interconnected service,” an
    untenable outcome. Commenters invoke the truth that the
    Commission recognizes a service as having a “capability” even
    though exercise of that capability requires customer premises
    60
    equipment (“CPE”) even for ordinary landline use. See OTI
    New America Comments at 56–57, J.A. 2791–2792; Mozilla
    Reply Br. 36–37. And just as customers need mobile devices
    packaged with software to make use of a mobile voice service,
    they need VoIP to place voice calls over broadband. Since the
    former does not disqualify mobile voice from being a
    commercial mobile service (as everyone agrees), the latter,
    commenters and Petitioners say, should not disqualify mobile
    broadband from the same classification. See Mozilla Br. 75–
    76; see also OTI New America Comments at 56, J.A. 2791
    (“[A] mobile voice subscriber cannot ‘speak’ to a fax machine,
    or to a pager, because each of these common carrier services,
    despite being ‘interconnected’ through the ‘public switched
    network,’ obviously requires certain CPE (or applications) to
    meaningfully interconnect and communicate. VoIP and Wi-Fi
    calling to NANP endpoints over the internet is no different,
    whether the application is pre-loaded by the mobile BIAS
    provider (e.g., T-Mobile Wi-Fi Calling, Google Voice) or
    downloaded via a pre-loaded app store gateway.”).
    But the Commission found the analogy “inapt.” 2018
    Order ¶ 80 n.298. (Hence Mozilla is mistaken in saying that
    the Commission did not address the matter. See Mozilla Br.
    76). The difference, the Commission says, is that—even
    though users need to acquire equipment and software
    separately for mobile voice—“the function of interconnection
    is provided by the purchased mobile service itself.” 2018
    Order ¶ 80 n.298. With VoIP, by contrast, the add-on
    application—and not the broadband service—supplies the
    interconnection functionality. 
    Id. And precisely
    because (as
    noted above) no regulatory, conceptual, or linguistic strictures
    force the Commission’s hand, its analysis here is reasonable.
    Finally, even if we were to accept Petitioners’ argument
    that the capability of mobile broadband service should be
    61
    conceived as embracing the capabilities both of that service and
    of VoIP, the choice of mobile broadband subscribers not to
    obtain VoIP capability would stand in the way of mobile
    broadband’s satisfying the Commission’s restored definition of
    “interconnected service”: To repeat, such service must give
    subscribers “the capability to communicate to or receive
    communication from all other users on the public switched
    network.” 47 C.F.R. § 20.3 (emphasis added). Petitioners and
    commenters in support of their position never dispute the
    existence of many such non-VoIP-using mobile broadband
    subscribers, though their number is unknown.
    The gap in Petitioners’ theory is shown most clearly in the
    obvious inability of a would-be caller from a NANP number
    who seeks to reach a person with mobile broadband but no
    form of VoIP (or mobile voice service). Suppose we agreed
    with Petitioners that mobile broadband gives the call’s
    intended recipient the “capability” of receiving NANP-
    originated calls by, for example, obtaining a NANP number
    through Google Voice or Skype or like services. By this they
    really mean that it gives him the capability of acquiring that
    capability (“capability2”?). But the availability of that option
    for the intended recipient does not give the would-be caller
    even the capability of obtaining the capability of reaching his
    intended call recipient.
    And a party with mobile broadband but without some form
    of VoIP capability cannot either “communicate to or receive
    communication from all other users on the public switched
    network,” 47 C.F.R. § 20.3 (emphasis added), even though she
    has the capability of acquiring that capability. But “[u]sers
    who cannot communicate with each other are simply not
    ‘interconnected’ in any plausible sense.” ISPs’ Br. 19.
    62
    In sum, we find that the Commission’s way of
    distinguishing among services and analyzing their regulatory
    implications meets Fox Television’s reasonableness
    
    requirement, 556 U.S. at 514
    –516, and falls within the bounds
    of agency discretion under Chevron.
    3.     Whether Mobile Broadband Is the “Functional
    Equivalent” of a Commercial Mobile Service
    Third, Petitioners dispute the Commission’s conclusion
    that mobile broadband is not a “functional equivalent” of
    mobile voice, which all agree is a commercial mobile service.
    47 U.S.C. § 332(d)(3). We are unconvinced. We find that the
    Commission reasonably readopted its test for functionally
    equivalent services that it had used from 1994 until 2015 and
    permissibly found that mobile broadband does not qualify as a
    service functionally equivalent to mobile voice.
    To begin with, Petitioners do not directly challenge the
    Commission’s return to its pre-Title II Order test for functional
    equivalence laid out in the Second CMRS Report and Order.
    See 2018 Order ¶¶ 83–84; see also Second CMRS Report and
    Order, 9 FCC Rcd. at 1447–1448 ¶ 80; cf. ISPs’ Br. 22 n.9.
    That approach entails looking to “a variety of factors” to
    determine whether “demand for” the allegedly functionally
    equivalent service is “a close substitute” for a given
    commercial mobile service, including:
    [C]onsumer demand for the service to determine
    whether the service is closely substitutable * * *;
    whether changes in price for the service under
    examination, or for the comparable * * * service[,]
    would prompt customers to change from one service
    to the other; and market research information
    63
    identifying the targeted market for the service under
    review.
    Second CMRS Report and Order, 9 FCC Rcd. at 1519
    § 20.9(a)(13)(ii)(B); see also 
    id. at 1447–1448
    ¶ 80. This focus
    on cross-elasticity of demand differs significantly from the new
    test adopted in the Title II Order, which focused entirely on
    whether a service is “widely available” and “offers mobile
    subscribers the capability to send and receive communications
    on their mobile device to and from the public.” Title II Order
    ¶ 404.
    In justifying its return to the CMRS test, the Commission
    properly underscores its statutory “discretion” to define
    functional equivalence, 2018 Order ¶ 84, whose meaning is to
    be “specified by regulation by the Commission,” 47 U.S.C.
    § 332(d)(3); cf. Title II Order ¶ 404. The Commission argues
    that the CMRS test “reflects the best interpretation of section
    332,” 2018 Order ¶ 83, and “hews much more faithfully to the
    intent of Congress” than the Title II Order “or the analyses in
    the record focusing on the extent of service availability,” 
    id. ¶ 84.
    It was reasonable for the Commission to home in on
    substitutability: If the same regulatory regime is to govern two
    services, the Commission could sensibly conclude that
    economic rationality suggests that the risk of regulation-
    engendered economic distortions will be less if the two are
    close substitutes. As the Commission rightly observed in the
    Second CMRS Report and Order, the “statute’s overriding
    purpose [is] to ensure that similar services are subject to the
    same regulatory classification and requirements.” 9 FCC Rcd.
    at 1447 ¶ 78 (emphasis added). The 2018 Order quite properly
    rested on this section of the Second CMRS Report and Order.
    2018 Order ¶ 84 & n.312.
    64
    Applying the restored CMRS test, the Commission
    appropriately looked to substitutability of the services on offer.
    It reasoned that mobile voice and mobile broadband “have
    different service characteristics and intended uses and are not
    closely substitutable for each other * * *.” 2018 Order ¶ 85.
    Consumers purchase mobile broadband to “access the Internet,
    on-line video, games, search engines, websites, and various
    other applications.” 
    Id. By contrast,
    consumers “purchase
    mobile voice service solely to make calls to other users using
    NANP numbers [presumably referring primarily to users
    reachable via the public switched telephone network].” 
    Id. Thus the
    Commission plausibly places its emphasis on the
    distinct purposes and capabilities of the services taken as a
    whole. In virtue of these differences, the two are not “closely
    substitutable in the eyes of consumers.” 
    Id. ¶ 84;
    cf. Second
    CMRS Report and Order, 9 FCC Rcd. at 1447–1448 ¶ 80
    (asking whether a service is a “close substitute”).
    In support of its finding of non-substitutability, the
    Commission points to divergent price points between the two
    services. It offers examples showing a substantial price gap—
    with up to a six-fold jump from $15 to $90 per line—between
    unlimited voice/text plans and unlimited mobile broadband
    plans. 2018 Order ¶ 85; see 
    id. at nn.317
    & 318. It ties this
    down to the CMRS test by making the seemingly indisputable
    point that “[n]othing in the record suggests that changing the
    price for one service by a small but significant percentage
    would prompt a significant percentage of customers to move to
    the other service.” 
    Id. ¶ 85.
    Petitioners do not contest that
    finding, which is hardly surprising, given the distinct purposes
    and range of options in mobile voice and mobile broadband,
    notwithstanding their interoperability.
    Instead Petitioners respond with an interesting but
    seemingly unhelpful point: “Today each of the four national
    65
    [mobile] carriers exclusively sell smartphone plans that bundle
    voice, texting and internet access as applications * * * .” OTI
    New America Comments at 97–98, J.A. 1695–1696 (quoted at
    Mozilla Br. 81). The Commission concedes that the voice-and-
    text-only plans it describes are offered by “small mobile
    carriers.” Commission Br. 56 n.12. But Petitioners’ approach
    suffers a worse defect: To contest the Commission’s finding
    that the two services are not close substitutes (and therefore not
    very direct competitors) it offers evidence that they are very
    good complements. That seems a rather deft way of changing
    the subject. Though national plans may bundle voice and data,
    the Commission aptly says that this “does not undermine [its]
    conclusion that consumers do not regard [the services] as
    fungible.” Id.; cf. ISPs’ Br. 22 (“[C]onsumers generally
    subscribe to both services * * * because they employ them for
    different purposes.”).
    Petitioners appear to rely on a competing test for
    functional equivalence resembling the Title II Order’s
    approach. As Petitioners see it, the fact that mobile voice and
    mobile broadband both allow users to carry out some of the
    same tasks—most importantly, placing voice calls to NANP
    numbers (to the extent allowed by mobile broadband users’
    adoption of VoIP)—suffices to compel their treatment as
    functionally equivalent services. Mozilla contends that mobile
    broadband “provides all the functionality of mobile voice,
    allowing subscribers to call anyone a mobile voice subscriber
    could,” and is therefore a functionally equivalent service.
    Mozilla Br. 80.
    This argument fails on two counts. It completely
    disregards the Commission’s solid grounds for returning to the
    pre-Title II Order focus on substitutability and cross-
    elasticity—a return that, as we noted above, Petitioners do not
    explicitly challenge. That focus made the statute’s “functional
    66
    equivalent” provision serve the sound policy objective of
    bringing services in close competition with each other under
    the same regulatory umbrella. Second, Petitioners’ alternative
    test suffers the same flaw (from the Commission’s perspective)
    as their effort to treat mobile broadband and VoIP as a single
    service, an effort the Commission was under no obligation to
    countenance.
    In sum, even though Petitioners’ reading of a “functional
    equivalen[ce]” in Section 332(d)(3) is not foreclosed by the
    statute, the agency’s interpretation of that term, and its
    application to mobile broadband, are reasonable and merit
    Chevron deference.
    III.   Section 706 Authority
    Petitioners additionally argue that the Commission could
    have addressed the harms of blocking and throttling and issued
    open Internet rules under Section 706 of the
    Telecommunications Act. Pursuant to Section 706(a), the FCC
    “shall encourage the deployment on a reasonable and timely
    basis of advanced telecommunications capability to all
    Americans * * * by utilizing * * * price cap regulation,
    regulatory forbearance, measures that promote competition in
    the local telecommunications market, or other regulating
    methods that remove barriers to infrastructure investment.” 47
    U.S.C. § 1302(a). Furthermore, Section 706(b) states that the
    agency “shall take immediate action” if this goal is not being
    met “in a timely fashion.” 
    Id. § 1302(b).
    The Commission
    interpreted these provisions as “exhorting the Commission to
    exercise market-based or deregulatory authority granted under
    other statutory provisions, particularly the Communications
    Act” not as “an independent grant of regulatory authority to
    give those provisions meaning.” 2018 Order ¶ 270. Despite
    67
    Petitioners’ contentions, we find that this interpretation of
    Sections 706(a) and (b) is lawful.
    As with our prior analysis of the Commission’s
    classification determinations, we evaluate its statutory
    interpretation decisions concerning Section 706 authority by
    applying the two-step analysis of Chevron. 
    See 467 U.S. at 842
    –843.
    In Verizon v. FCC, we noted that the language of Section
    706 is ambiguous. See 
    740 F.3d 623
    , 635-636 (D.C. Cir. 2014)
    (citing 
    Chevron, 467 U.S. at 842
    –843); see also 
    id. at 641
    (“[A]s with section 706(a), it is unclear whether section 706(b)
    * * * vested the Commission with authority to remove []
    barriers to infrastructure investment and promote
    competition.”). Thus, we proceed to Step Two of the analysis
    and ask whether the Commission’s understanding of Section
    706 as hortatory represents a reasonable interpretation of the
    statute. We find that it does. Indeed, we have previously held
    that the language of Section 706(a) could “certainly be read as
    simply setting forth a statement of congressional policy” and
    “just as easily be read to vest the Commission with actual
    authority. 
    Id. at 637.
    We have also understood Section 706(b)
    to be similarly permissive. 
    Id. at 641.
    Furthermore, in support
    of its interpretation, the Commission notes that Section 706
    lacks details “identify[ing] the providers or entities whose
    conduct could be regulated,” whereas other provisions of the
    Act that unambiguously grant regulatory authority do specify
    such details. 2018 Order ¶ 271. We find the Commission’s
    rationales in favor of its reading of Section 706 to be
    reasonable.
    68
    IV.    Section 257 and the 2018 Order’s Transparency
    Requirements
    In its 2018 Order, the Commission retained a
    “transparency rule,” which provided that “[a]ny person
    providing broadband Internet access service shall publicly
    disclose accurate information regarding the network
    management practices, performance, and commercial terms of
    its broadband Internet access services sufficient to enable
    consumers to make informed choices * * * .” 2018 Order
    ¶ 215. Petitioners challenge the Commission’s legal authority
    to issue a transparency rule under 47 U.S.C. § 257. Instead,
    Petitioners argue that the Commission should have adopted the
    rule under Section 706 of the Telecommunications Act. We
    disagree.
    We first dispense with the Commission’s contention that
    Petitioners Mozilla and Internet Association (“IA”) do not have
    standing to assert this challenge because they do not suffer
    injury. The Commission notes that Petitioners fail to identify
    any injuries that flow from the transparency rule itself but
    rather observe that the rule derivatively supports other rules
    that they find injurious. Without alleging harm specific to the
    transparency rule, the Commission contends, Petitioners lack
    standing. This understanding of injury is flawed. Petitioners
    allege concrete injury from the Commission’s Order repealing
    Internet conduct rules. When a party alleges concrete injury
    from promulgation of an agency rule, it has standing to
    challenge essential components of that rule, invoked by the
    agency to justify the ultimate action, even if they are not
    directly linked to Petitioners’ injuries; if Petitioners’ objections
    carry the day, the rule will be struck down and their injury
    redressed. See Sierra Club v. FERC, 
    867 F.3d 1357
    , 1366–
    1367 (D.C. Cir. 2017); see also WildEarth Guardians v. Jewell,
    
    738 F.3d 298
    , 304–308 (D.C. Cir. 2013). Because it is
    69
    undisputed that the transparency rule is an essential component
    of the 2018 Order, Petitioners have standing to object to any
    deficiency with the transparency rule. See Sierra 
    Club, 867 F.3d at 1366
    –1367. The deficiency need not be tied to the
    Petitioners’ specific injuries. Accordingly, we find that
    Petitioners suffer injury for the purpose of establishing
    standing.
    Nonetheless, the Commission’s reliance on 47 U.S.C.
    § 257 to issue the transparency rule was proper. Section 257(a)
    of the Communications Act required the FCC, within 15
    months after enactment of the 1996 Act, to “complete a
    proceeding for the purpose of identifying and eliminating, by
    regulations pursuant to its authority under this chapter (other
    than this section), market entry barriers for entrepreneurs and
    other small businesses in the provision and ownership of
    telecommunications services and information services.” 47
    U.S.C. § 257(a). Section 257(c) directed the Commission,
    “triennially thereafter, to report to Congress on such
    marketplace barriers and how they have been addressed by
    regulation or could be addressed by recommended statutory
    changes.” 2018 Order ¶ 232 (citing 47 U.S.C. § 257(c)). The
    Commission observed that “section 257 does not specify
    precisely how [they] should obtain and analyze information for
    purposes of its reports to Congress,” and thus “construe[d] the
    statutory mandate to ‘identify’ the presence of market barriers
    as including within it direct authority to collect evidence to
    prove that such barriers exist.” 2018 Order ¶ 232 n.847. We
    find that this interpretation of Section 257(a) is permissible.
    “The Commission, however, interpreted the statute to require
    a rulemaking based on authority other than section 257 itself
    only for rules intended to eliminate market barriers rather than
    rules meant to identify such barriers.” Commission Br. 100.
    The relevant language in Section 257 is sufficiently
    ambiguous—Congress does not proscribe the means of
    70
    “identifying” market barriers. The Commission permissibly
    read the clause to apply only to the elimination of market
    barriers. In turn, we find that the Commission’s reading easily
    satisfies review at Chevron Step Two, under which we defer to
    the agency’s interpretation unless it is “arbitrary or capricious
    in substance, or manifestly contrary to the statute.” United
    States v. Mead Corp., 
    533 U.S. 218
    , 227 (2001).
    While Petitioners correctly note that Section 257(c) was
    removed from the Communications Act before the 2018 Order
    became effective, see RAY BAUM’S Act of 2018, Pub. L. 115-
    141, § 402(f), 132 Stat. 1089 (2018), it was not altered in any
    material respect for purposes of the Commission’s authority in
    this regard. The 2018 legislation that amended the Act
    introduced a biennial reporting requirement quite similar to the
    triennial reporting requirement contained in the former Section
    257(c). See Pub. L. No. 115-141, Div. P, §§ 401, 402(f), 132
    Stat. at 1087-1089 (codifying a reporting requirement at
    47 U.S.C. § 163).         Indeed, Congress emphasized that
    “[n]othing in this title or the amendments made by this title
    shall be construed to expand or contract the authority of the
    Commission.” Pub. L. No. 115-141, Div. P, § 403, 132 Stat. at
    1090.
    We also reject Petitioners’ contention that they did not
    have adequate notice of the statutory authority upon which the
    Commission relied in imposing the transparency rule. This
    Court has previously recognized Section 257 as a possible
    source of authority for such rules. See, e.g., Comcast Corp. v.
    FCC, 
    600 F.3d 642
    , 659 (D.C. Cir. 2010) (“We readily accept
    that certain assertions of Commission authority could be
    reasonably ancillary to the Commission’s statutory
    responsibility to issue a report to Congress. For example, the
    Commission might impose disclosure requirements on
    regulated entities in order to gather data needed for such a
    71
    report.” (quotations omitted)); see also 
    Verizon, 740 F.3d at 668
    n.9 (Silberman, J., concurring in part and dissenting in
    part). In fact, in response to the Notice of Proposed
    Rulemaking’s (“NPRM’s”) explicit solicitation of comment on
    its legal authority to adopt rules if the Commission reclassified
    broadband as an information service, several commenters
    identified Section 257 as a possible source of authority for a
    transparency rule. See 2018 Order ¶ 232 n.843; see also
    NPRM ¶ 103 (“[W]e seek comment on any other sources of
    independent legal authority.” (emphasis added)). Thus, we
    find Petitioners’ notice argument to be without merit.
    Intervenor Digital Justice Foundation argues that while the
    Commission has authority to maintain a transparency rule, it
    should have retained aspects of the rule contained in a 2010
    Order issued by the Commission. See Preserving the Open
    Internet, 25 FCC Rcd. 17905 (2010) (“2010 Order”). At the
    outset, we reject the Commission’s assertion that this argument
    is not properly before us. Digital Justice has simply raised a
    new argument in support of claims the Petitioners have
    presented. The argument is thus a far cry from the sort of
    intervenor’s claim with “absolutely no substantive connection
    with the issues raised by the petition for review,” which we
    have rejected in the past. See Synovus Fin. Corp. v. Board of
    Governors of Fed. Reserve Sys., 
    952 F.2d 426
    , 434 (D.C. Cir.
    1991). We also find no merit in the Commission’s argument
    that Digital Justice was required to seek reconsideration before
    raising this garden-variety arbitrary-and-capricious challenge.
    A petition for reconsideration is required for “only those issues
    upon which the Commission has been afforded no opportunity
    to pass.” AT&T Corp. v. FCC, 
    394 F.3d 933
    , 938 n.1 (D.C.
    Cir. 2005) (internal quotation marks omitted). That rule
    always allows courts to consider whether the Commission
    “relied on faulty logic,” 
    id., because “[t]he
    Commission
    necessarily had an opportunity to pass upon the validity of the
    72
    rationale that it actually put forth,” MCI Telecomm. Corp. v.
    FCC, 
    10 F.3d 842
    , 845 (D.C. Cir. 1993).
    Turning to the merits, Digital Justice charges that it was
    arbitrary and capricious for the Commission to eliminate
    aspects of the former transparency rule without considering the
    impact on entrepreneurs and small businesses — as identified
    in Section 257(a)—or providing a reasoned explanation for
    modifying the rule. We disagree. The Commission explained
    that the “additional obligations [of the former transparency
    rule] [did] not benefit consumers, entrepreneurs, or the
    Commission sufficiently to outweigh the burdens imposed on
    [broadband providers].” See 2018 Order ¶ 210. We are also
    unpersuaded by Digital Justice’s claim that the Commission
    needed to analyze the interest of entrepreneurs and other small
    businesses in the specific context of repealing portions of the
    transparency rule. Section 257(a) simply requires the FCC to
    consider “market entry barriers for entrepreneurs and other
    small businesses.” 47 U.S.C. § 257(a). The disclosure
    requirements in the transparency rule are in service of this
    obligation. The Commission found that the elements of the
    transparency rule in the 2018 Order will “keep entrepreneurs
    and other small businesses effectively informed of [broadband
    provider] practices so that they can develop, market, and
    maintain Internet offerings.” See 2018 Order ¶ 218. In fact,
    the Order takes care to describe the specific requirements of
    the rule to “ensure that consumers, entrepreneurs, and other
    small businesses receive sufficient information to make [the]
    rule effective.” Id.; see also 
    id. ¶¶ 218–223.
    Digital Justice’s
    challenges cannot prevail under our particularly deferential
    arbitrary-and-capricious review.
    In sum, we uphold the transparency rule as authorized by
    47 U.S.C. § 257.
    73
    V.   Arbitrary and Capricious Challenges
    The Commission claims that we can uphold its entire
    rulemaking on the weight of its statutory interpretation alone.
    See Commission Br. 58 (expressing its view that its legal
    interpretation “alone suffices to justify the repeal”). In the
    Commission’s view, the reasonableness of its interpretation
    necessarily insulates the 2018 Order from arbitrary and
    capricious challenge. See 
    id. That argument
    misunderstands the law. To be sure, the
    analysis of an agency’s statutory interpretation at Chevron Step
    Two has some overlap with arbitrary and capricious review.
    The former asks whether the agency’s interpretation “is based
    on a permissible construction of the statute.” 
    Chevron, 467 U.S. at 843
    . And the latter asks whether the agency
    “examine[d] the relevant data and articulate[d] a satisfactory
    explanation for its action including a rational connection
    between the facts found and the choice made,” and “whether
    the decision was based on a consideration of the relevant
    factors and whether there has been a clear error of judgment.”
    Motor Vehicle Mfrs. Ass’n v. State Farm Mut. Auto. Ins. Co.,
    
    463 U.S. 29
    , 43 (1983) (internal quotations marks omitted).
    Nevertheless, “the Venn diagram of the two inquiries is not a
    circle.” Humane Soc’y of United States v. Zinke, 
    865 F.3d 585
    ,
    605 (D.C. Cir. 2017). Each test must be independently
    satisfied.
    This is a case in point. The Commission has advanced
    what is, under controlling precedent, a reasonable
    interpretation of the statute for purposes of Chevron. But
    aspects of the Commission’s decision are still arbitrary and
    capricious under the Administrative Procedure Act because of
    the Commission’s failure to address an important and
    statutorily mandated consideration—the impact of the 2018
    74
    Order on public safety—and the Commission’s inadequate
    consideration of the 2018 Order’s impact on pole-attachment
    regulation and the Lifeline Program. We consider each of
    Petitioners’ challenges in turn.
    A. Effects on Investment and Innovation
    Petitioners challenge the Commission’s conclusion that
    reclassification of broadband as an information service is
    “likely to increase ISP investment and output,” 2018 Order
    ¶ 98, focusing almost entirely on the Commission’s suggestion
    that the Title II Order may well have led to reduced investment
    in broadband. They object to particular studies on which the
    agency relies, the explanations it offers for its conclusions, and
    its failure to credit certain data. We find that the agency’s
    position as to the economic benefits of reclassification away
    from “public-utility style regulation,” 
    id. ¶ 90,
    which the
    Commission sees as “particularly inapt for a dynamic industry
    built on technological development and disruption,” 
    id. ¶ 100,
    is supported by substantial evidence, see National Lifeline
    Ass’n v. FCC, 
    921 F.3d 1102
    , 1111 (D.C. Cir. 2019), and so
    reject Petitioners’ objections.
    As part of its justification for “light-touch” regulation of
    the Internet ecosystem, the Commission made a variety of
    arguments about optimal, and suboptimal, conditions for
    broadband investment and innovation. It relied on, among
    other things, (1) prior agency positions, which have “long
    recognized that regulatory burdens and uncertainty * * * can
    deter investment by regulated entities,” 2018 Order ¶ 88,
    backed up by economic theory in general, 
    id. ¶¶ 89,
    93; (2) a
    finding that “the balance of the evidence indicates that Title II
    discourages investment by ISPs,” 
    id. ¶ 93,
    supported by studies
    evaluating ISP investment before and after the Title II Order,
    
    id. ¶¶ 89–98;
    (3) the disincentive to investment arising from
    75
    regulatory uncertainty about the substance and potential reach
    of Title II regulation, 
    id. ¶¶ 99–102;
    (4) effects on small ISPs
    and rural communities where firms are more likely to take the
    risks of offering much-needed services in a more predictable
    and less onerous regulatory climate, 
    id. ¶¶ 103–106;
    and (5) the
    absence of evidence of negative effects on edge investment, 
    id. ¶¶ 107–108.
    This diverse array of theses led the Commission
    to conclude that “Title II classification likely has resulted, and
    will result, in considerable social cost, in terms of forgone
    investment and innovation,” without “discernable incremental
    benefit relative to Title I classification.” 
    Id. ¶ 87.
    We reiterate that our posture in arbitrary and capricious
    review is deferential. To withstand scrutiny, “the agency must
    examine the relevant data and articulate a satisfactory
    explanation for its action including a rational connection
    between the facts found and the choice made.” State 
    Farm, 463 U.S. at 43
    (internal quotation marks omitted). Where, as
    here, the agency shifts course, “it suffices that the new policy
    is permissible under the statute, that there are good reasons for
    it, and that the agency believes it to be better, which the
    conscious change of course adequately indicates.” Fox
    
    Television, 556 U.S. at 515
    . Especially apt here is an
    admonition we have long made: “Predictions regarding the
    actions of regulated entities are precisely the type of policy
    judgments that courts routinely and quite correctly leave to
    administrative agencies.” Public Citizen, Inc. v. National
    Highway Traffic Safety Admin., 
    374 F.3d 1251
    , 1260–1261
    (D.C. Cir. 2004) (quoting Public Utils. Comm’n v. FERC, 
    24 F.3d 275
    , 281 (D.C. Cir. 1994)).
    Mozilla and Intervenors IA especially attack a study by
    Hal J. Singer, which had “concluded that ISP investment by
    major ISPs fell by 5.6 percent between 2014 and 2016.” 2018
    Order ¶ 91. They allege “serious methodological defects” with
    76
    the study, Mozilla Br. 69, and say that the Commission should
    have placed greater stock in “aggregate investment totals as
    actually reported by companies to investors,” id.—specifically,
    capital expenditure figures of publicly traded broadband
    providers in 2013–2016 as summarized by Free Press in its
    comments to the Commission, see J.A. 860. And they
    unfavorably contrast the reliability of Singer’s numbers with
    those cited by Free Press. They note the Commission’s
    acknowledgement that “Singer’s calculations do not control for
    some factors that influence investment, such as the ‘lumpiness’
    of capital investment and technological change,” 2018 Order
    ¶ 91 n.339; see Mozilla Br. 69; IA Intervenors’ Br. (“IA Br.”)
    22–23, an acknowledgement that might well be taken to reflect
    quite proper Commission caution about the empirical issues.
    In our view the Commission’s reliance on, and analysis of,
    the Singer study are reasonable. First, it is but one of numerous
    studies and trends invoked by the Commission that reached
    similar conclusions—about which Petitioners say relatively
    little or nothing specific. These include (1) a study finding that
    “ISP capital investment increased each year from the end of the
    recession in 2009 until 2014, when it peaked,” 2018 Order ¶ 90
    & n.335; see IA Br. 20–21 (questioning trends in these data);
    (2) another reporting that wireless capital investment had
    slowed, with a “precipitous decline in 2016,” 
    id. ¶ 90
    n.337;
    and (3) an article, Thomas W. Hazlett & Joshua D. Wright, The
    Effect of Regulation on Broadband Markets: Evaluating the
    Empirical Evidence in the FCC’s 2015 ‘Open Internet’ Order,
    50 Rev. Indus. Org. 487 (2017), uncontroverted by Petitioners,
    on which the Commission drew extensively, see 2018 Order
    ¶¶ 94 & n.349, 96 & n.358, 98 & n.362, 107, 148 & nn.535–
    536. This study relied in part on a “natural experiment”
    derived from Commission policy changes, showing a
    “statistically significant upward shift in DSL [Digital
    77
    Subscriber Line]” investment after the FCC reclassified DSL
    service as an “information service” in 2005. 
    Id. ¶ 94.
    Mozilla’s effort to paint a contrasting picture of the Singer
    and Free Press studies (“Singer—bad; Free Press—good”)
    encounters multiple obstacles (undiscussed by Petitioners).
    Mozilla does not address shortcomings of the Free Press
    figures, pinpointed by the agency, including for example its
    failure to exclude investment abroad, which the Singer study
    had accounted for. 2018 Order ¶ 91; cf. IA Br. 22
    (acknowledging this point). Most important, Mozilla and IA
    entirely ignore an analysis that puts the two studies on an
    apples-to-apples basis and finds agreement between them.
    That analysis “adjusted the Free Press and Singer numbers so
    that they [1] covered the same ISPs, [2] spanned the same time
    period, and [3] subtracted investments unaffected by the
    regulatory change.” 2018 Order ¶ 92 (numbering added).
    After controlling for these three factors, the assessment “found
    that both sets of numbers demonstrate that ISP investment fell
    by about 3 percent in 2015 and by 2 percent in 2016.” 
    Id. (emphasis added).
            The comparison thus indicates a
    convergence between the two sets of figures—a convergence
    close to the original Singer findings. While that assessment
    may itself be flawed, Petitioners and Intervenors ignore it
    altogether. We thus conclude that the Commission’s reliance
    on the Singer study—given its apparent match-up with the Free
    Press data, and as but a part of the agency’s analysis—is not
    unreasonable.
    Mozilla also reframes its championing of the Free Press
    data by asserting the superiority of investment “results”
    attained by “[i]ndividual BIAS providers[]” (citing only the
    Free Press data), over “aggregate numbers,” which may be
    “easily[] skewed.” Mozilla Br. 70; see IA Br. 21. Whatever
    the force of the general theory, it seems immaterial as a basis
    78
    to prefer Free Press’s calculations in light of the apparent (and
    uncontested by Petitioners) harmony of the Free Press and
    Singer data.
    The broader point here is that the Commission was clear-
    eyed in assigning quite modest probative value to studies
    attempting to draw links between the Title II Order and
    broadband investment, so that there is less daylight between
    the Commission and Petitioners than the latter seem to think.
    It states that “reclassification * * * is likely to increase ISP
    investment and output.” 2018 Order ¶ 98 (emphasis added). It
    also notes a separate calculation by the Free State Foundation
    that yielded findings similar to Singer’s based on “capital
    expenditure data for 16 of the largest ISPs.” 
    Id. ¶ 92.
    But the
    Commission observes that, while “suggestive,” they are at
    most confirmatory of “other evidence in the record that
    indicates that Title II affected broadband investment.” 
    Id. So here
    too we find IA’s criticism of Free State’s calculation, see
    IA Br. 23–24, to a large extent blunted by the Commission’s
    having already discounted it. To be sure, the IA asserts a more
    intense level of skepticism, indeed an Olympian level, calling
    “attempts to identify and quantify direct causal impacts of the
    [Title II Order]” an “essentially * * * pointless exercise.” IA
    Br. 18 (citation omitted). The takeaway here is both that
    Petitioners’ skepticism is echoed in the 2018 Order and that
    some commenters seem to set the bar so high that no empirical
    grounds relating to the Title II Order’s effects on ISP
    investment could support (or refute) the Commission’s policy.
    The parties spar at length over a paper by George Ford at
    the Phoenix Center, which had shown that then-FCC Chairman
    Julius Genachowski’s “surprise[]” announcement in 2010 of a
    “framework for reclassifying broadband under Title II * * *
    was associated with a $30 billion-$40 billion annual decline in
    investment in” the United States Bureau of Economic
    79
    Analysis[’s] ‘broadcasting and telecommunications’ category
    between 2011 and 2015.” 2018 Order ¶ 95 & n.353. Again
    we note that the Commission was fairly modest in its reliance
    on the study, observing that because it had used data
    “cover[ing] the entire broadcasting and telecommunications
    industries,” it could only be reliably adduced as evidence of the
    directionality of broadband investment, not “the absolute size
    of the change” attributable to the Title II Order. 2018 Order
    ¶ 95.
    IA (perhaps applying the lofty standard by which it
    discounted any effort to estimate the effect of the Title II Order
    on investment as “essentially a pointless exercise”) still regards
    the Commission as having placed undue weight on this result
    while underweighting a competing study by Christopher
    Hooton that it had proffered. See J.A. 1178–1222. The Hooton
    study had criticized Dr. Ford’s work, see J.A. 1184, and elicited
    a reply, see 2018 Order ¶ 97 n.360; see also IA Br. 24–25;
    Phoenix Ctr. Amicus Br. 18–25.
    The Ford-Hooton dispute seems far too sophisticated for
    us to credibly take sides. When intricacies of econometric
    modeling are in dispute, “we do not sit as a panel of referees
    on a professional economics journal, but as a panel of
    generalist judges obliged to defer to a reasonable judgment by
    an agency acting pursuant to congressionally delegated
    authority.” 
    USTA, 825 F.3d at 697
    (quoting City of Los
    Angeles v. United States Dep’t of Transp., 
    165 F.3d 972
    , 978
    (D.C. Cir. 1999)). One issue suggests the impenetrability of
    the matter from our perspective. The IA brief is very insistent
    that the Commission unfairly criticizes the Hooton study for
    relying “partially on forecast [data] rather than actual data,”
    Commission Br. 83 (quoting 2018 Order ¶ 97), while failing to
    complain of comparable methodologies in its own favored
    studies, see IA Br. 19; IA Reply Br. 9–11.
    80
    Maybe so, maybe not. Perhaps the methodological dispute
    will ultimately attract scholarly attention and be sorted out
    persuasively on one side or the other. It seems likely that many
    variables would be relevant in assessing when reliance on
    forecasts would be justifiable, and—in cases where it was
    not—assessing whether the reliance was of any real
    consequence. But we are not the needed scholars, and will not
    pretend we understand more than we do. Perhaps Hooton wins
    on points. That is an insufficient ground for us to call the
    Commission’s finding unreasonable.
    Next Mozilla quotes remarks by two chief executive
    officers of ISPs that it believes “offer[] much more probative
    evidence on the effect of the [Title II] Order on investment
    decisions.” Mozilla Br. 70; see IA Br. 21–22. But those
    statements seem to match exactly one of the grounds on which
    the Commission found such statements generally irrelevant to
    the investment-effect issue, namely that the executives were
    saying only that their firms’ practices would not be affected
    because they were not engaged in the conduct prohibited by the
    new rules. See 2018 Order ¶ 102 & nn.384–385; R Street
    Institute Reply at 8, WC Dkt. No. 17-108 (Aug. 30, 2017); see
    also Commission Br. 83. Petitioners do not address these
    points. See Mozilla Br. 69–70; IA Br. 22; see also Mozilla
    Reply Br. (failing to address reduced investment).
    Indeed, one of the CEOs whose December 2015 remarks
    Mozilla highlights, Randall Stephenson of AT&T, Mozilla Br.
    70 (quoting J.A. 881), said in January 2017 that, while his
    company is an “advocate[] of net neutrality,” “[t]here is no way
    anybody can argue” that “placing utility[-]style regulation on
    our mobility and internet businesses * * * is not suppressive to
    investment,” Georgetown Ctr. for Bus. and Pub. Policy Amicus
    Br. 6; see also AT&T Comments at 54 n.91, J.A. 170, a
    distinction that echoes the FCC’s contrast between a
    81
    commitment to “net neutrality per se” and “the threat of Title
    II regulation,” 2018 Order ¶ 95.
    We now turn to IA’s claims that the Commission gave
    short shrift to benefits for edge investment arising from the
    Title II Order. IA Br. 25–27. We are unconvinced. While
    agreeing that it is critical not to overlook effects on edge
    providers, the Commission found no evidence of either (1) “a
    correlation between edge provider investment and Title II
    regulation” or (2) a “causal relationship” between the Title II
    Order and upswings in edge investment, which would need to
    be demonstrated using a counterfactual analysis of the sort
    employed on other matters in Hazlett and Wright’s paper. 2018
    Order ¶ 107. Without claiming that edge investment would
    have been higher absent the Title II Order, the Commission
    pointed to data suggesting that “the strongest growth” for
    certain edge providers and segments of the industry “predate[d]
    the Title II Order.” 
    Id. ¶ 108.
    First, IA alleges a double standard as to the above: The
    Commission sets a high bar to show causal links between edge
    investment and the Title II Order while settling for less
    exacting standards in finding that the Title II Order likely hurt
    ISP investment. IA Br. 26. But we have already said that the
    agency drew reasonable, and appropriately qualified,
    conclusions on the latter issue. Second, IA says it is ironic that
    the Commission asks for counterfactual analysis while putting
    stock in the (allegedly) flawed Ford study. 
    Id. Without touching
    on the Ford-Hooton debate, we simply note that IA is
    silent as to Hazlett and Wright’s methodology for running
    counterfactual analyses, which the Commission treated as
    reliable—and without any equivalent as to edge providers in
    these proceedings. 2018 Order ¶ 107. Third, IA says the
    Commission flouts Fox Television by ignoring the Title II
    Order’s claim that edge innovation “depends upon low barriers
    82
    to innovation and entry,” IA Br. 26–27 (quoting 
    Verizon, 740 F.3d at 645
    (quoting, in turn, Title II Order ¶ 14)). Here IA
    begs the question. The thrust of the 2018 Order is that edge
    investment will benefit on net from unburdening ISPs of
    “onerous utility regulation.” 2018 Order ¶ 110. The
    Commission argues, inter alia, that (1) the Title II Order failed
    to take a properly “holistic view of the market(s) supplied by
    ISPs,” and that “net gains to subscribers and edge providers,”
    
    id. ¶ 119
    (emphasis added), are best achieved without “heavy-
    handed” Title II rules, 
    id. ¶ 117;
    see also 
    id. ¶¶ 120–121;
    (2)
    “smaller edge providers may benefit from tiered pricing, such
    as paid prioritization, as a means [both] of gaining [market]
    entry,” 
    id. ¶ 133,
    and “compet[ing] on a more even playing
    field against large edge providers,” 
    id. ¶ 255;
    (3) “ending the
    flat ban on paid prioritization will encourage the entry of new
    edge providers into the market, particularly those offering
    innovative     forms     of    service    differentiation    and
    experimentation,” id.; see also 
    id. at n.921
    (reasoning that
    “encourag[ing] differentiated services is important because
    some online activities require only a minimal amount of
    bandwidth but extremely low latency; other uses may require
    greater bandwidth” (quoting Ericsson Comments at 5, WC Dkt.
    No. 17-108 (July 17, 2017)); and (4) transparency rules,
    coupled with ISPs’ economic incentives, can protect “Internet
    openness,” ¶ 117; see also 
    id. ¶ 142.
    Putting aside the merits
    of these claims, which we address elsewhere, we do not find
    that the Commission’s take on edge investment at Paragraphs
    107–108 of the 2018 Order is either arbitrary or in conflict with
    Fox Television.
    IA also alleges that the Commission failed to grapple
    properly with the Title II Order’s prediction of a possible short-
    term downturn in investment, only touching cursorily on it at
    Paragraph 247. See Title II Order ¶ 410; see also IA Br. 28 &
    n.11. But the Commission, noting “that the vague Internet
    83
    Conduct Standard [of the Title II Order] subjects providers to
    substantial regulatory uncertainty,” 2018 Order ¶ 247,
    expressed doubt that this uncertainty was “likely to be short
    term and [would] dissipate over time as the marketplace
    internalizes [the] Title II approach,” 
    id. (second alteration
    in
    original) (quoting Title II Order ¶ 410).
    Finally, Petitioners appear to believe that the Commission
    arbitrarily downweighted a study, Robert W. Crandall, The
    FCC’s Net Neutrality Decision and Stock Prices, 50 Rev.
    Indus. Org. 555 (2017), finding that, despite release of the Title
    II Order in March 2015, there had been no decline in the stock
    prices of BIAS providers in the first half of 2015 relative to the
    stock market generally. Mozilla Br. 70–71; see 2018 Order
    ¶ 93 n.346. (We note that the study relates only indirectly to
    the issue of investment, although both derive from market
    anticipations of future profit.) The agency had commented that
    the study “may reflect the forward-looking, predictive
    capabilities of market players.” 2018 Order ¶ 93 n.346. In its
    brief before us the Commission confirms what an ordinary
    reader would likely have made of that remark, namely, that the
    market would have factored into the stock price investors’
    expectations of the ultimate Commission action before it
    occurred. Commission Br. 84 n.23. Anticipating this reading,
    Petitioners see it as unreasonable, because it is tantamount to
    using a “crystal ball, since reclassification was not the
    preferred course announced by the Commission in the 2014
    NPRM [¶ 148].” Mozilla Br. 71; see In re Protecting and
    Promoting the Open Internet, 29 FCC Rcd. 5561, 5612–5613
    ¶ 148 (“2014 NPRM”).
    Curiously, we have already opined on Paragraph 148 of
    the 2014 NPRM for the Title II Order. In USTA we addressed
    United States Telecom’s claim that because the NPRM
    proposed to rely on Section 706 there was inadequate notice of
    84
    its ultimate use of Title II. We batted that out of the park in
    one sentence, citing Paragraph 148’s call for comment on
    possible use of Title II, 
    USTA, 825 F.3d at 700
    , a call that the
    Commission in fact proliferated in seven additional paragraphs
    bursting with minutiae about the use of Title II, see 2014
    NPRM ¶¶ 149–155. Moreover the May 2014 NPRM made
    clear the Commission’s plan to impose new rules on industry.
    See, e.g., 
    id. ¶ 24.
    (“Today, we respond directly to that remand
    
    [Verizon, 740 F.3d at 659
    ] and propose to adopt enforceable
    rules of the road * * * to protect and promote the open
    Internet.”). Strikingly, United States Telecom’s claim of
    inadequate notice did not suggest that the NPRM left it in the
    dark on a single rule adopted in the Title II Order. 
    USTA, 825 F.3d at 700
    .
    We should add that the disputed Crandall article takes no
    explicit note of the 2014 NPRM (though its charts suggest an
    absence of any stock movement associated with it). See
    Crandall, The FCC’s Net Neutrality Decision and Stock Prices,
    50 Rev. Indus. Org. at 661 Figs. 1 & 2. Reading the article as
    finding no stock price impact from the whole course of events,
    however, does not ipso facto undermine the Commission’s
    inference of a probable reduction in investment, as that
    reduction might reflect firms’ strategies for minimizing the
    Title II Order’s anticipated economic impact by reallocating
    capital to other, similarly productive, uses, thereby keeping
    stock prices mostly unaffected.
    In sum, we stress again the Commission’s recognition that
    the Title II Order’s effect on investment was subject to honest
    dispute, focusing in Paragraphs 87–98 on what is “likely” to
    happen, repeatedly flagging shortcomings in studies it cites,
    and qualifying their probative force. It found modestly that
    “[t]he balance of the evidence in the record suggests that Title
    II classification has reduced ISP investment in broadband
    85
    networks.” 2018 Order ¶ 88. Further, claims about the Title
    II Order’s effects on investment are only one element of the
    Commission’s basis for believing that reclassification will
    yield positive economic effects. We are, in short, unpersuaded
    by Petitioners’ and Intervenors’ objections to the
    Commission’s finding and their implicit claim that
    uncertainties associated with that finding render arbitrary the
    Commission’s overall judgment—that there are net public
    policy benefits from reclassification, based not only on a
    likelihood of increased investment and innovation but also on
    the absence of any “discernable incremental benefit relative to
    Title I classification.” 
    Id. ¶ 87.
    This court “properly defers to
    policy determinations invoking the [agency’s] expertise in
    evaluating complex market conditions.” Gas Transmission
    Nw. Corp. v. FERC, 
    504 F.3d 1318
    , 1322 (D.C. Cir. 2007).
    B. Harms to Edge Providers and Consumers
    Petitioners emphasize that, historically, the “FCC has
    repeatedly found that [broadband providers] have the ability
    and incentive to harm edge providers and consumers.” See
    Mozilla Br. at 62 (citing 2010 Order ¶ 21 and Title II Order
    ¶ 20). According to Petitioners, the Commission ignored these
    prior findings when it issued the 2018 Order. Under Fox
    Television, when an agency changes its policy “a reasoned
    explanation is needed for disregarding facts and circumstances
    that underlay or were engendered by the prior 
    policy.” 556 U.S. at 515
    –516. While “[a]n agency cannot simply disregard
    contrary or inconvenient factual determinations that it made in
    the past, any more than it can ignore inconvenient facts when it
    writes on a blank slate,” 
    Id. at 537
    (Kennedy, J., concurring),
    such is not the case here.
    The Commission reasonably concluded that the harms the
    Title II Order was designed to prevent did not require the prior
    86
    Order’s regulatory measures but could instead be mitigated—
    at a lower cost—with transparency requirements, consumer
    protection, and antitrust enforcement measures. Even if the
    conduct rules lead to marginal deterrence, the Commission
    determined that the “substantial costs” are “not worth the
    possible benefits.” 2018 Order ¶ 245; see also 
    id. ¶¶ 240–266.
    In arriving at this conclusion, the Commission “scrutinize[ed]
    closely each prior conduct rule.” 2018 Order ¶ 239. Rather
    than ignoring its prior findings, the Commission changed its
    balancing of the relevant incentives. The Commission
    employed a different method to address its previous concerns
    regarding broadband providers’ behavior and incentives. In so
    doing, the Commission provided a “reasoned explanation” for
    its changed view as required by Fox.
    We are, however, troubled by the Commission’s failure to
    grapple with the fact that, for much of the past two decades,
    broadband providers were subject to some degree of open
    Internet restrictions. For example, from the late 1990s to 2005,
    Title II applied to the transmission component of DSL service.
    Title II Order ¶ 313. Even after the Commission issued the
    2005 Wireline Broadband Order, which classified DSL as an
    integrated information service and thus further removing it
    from Title II’s ambit, the Commission announced that should
    it “see evidence that providers of telecommunications for
    Internet access or IP-enabled services are violating” the Internet
    Policy Statement, which reflected Chairman Michael Powell’s
    four principles of Internet openness, it would “not hesitate to
    take action to address that conduct,” 
    id. at 14904
    ¶ 96. In 2015,
    the Commission also claimed that “Title II has been maintained
    by more than 1000 rural local exchange carriers that have
    chosen to offer their DSL and fiber broadband services as
    common carrier offerings.” Title II Order ¶ 39. The
    Commission’s failure to acknowledge this regulatory history,
    however, does not provide grounds for reversal on this record
    87
    given its view that market forces combined with other
    enforcement mechanisms, rather than regulation, are enough to
    limit harmful behavior by broadband providers.
    Petitioners dispute that the transparency rule, market
    forces, or existing antitrust and consumer protection laws can
    adequately protect Internet openness. The Commission’s
    conclusion to the contrary, they argue, was arbitrary and
    capricious. We consider Petitioners’ attack on components of
    the light-touch regime but are ultimately unpersuaded.
    1.   Reliance on the Transparency Rule
    The Commission, in large part, undergirds its light-touch
    regime with its finding that the transparency rule’s disclosure
    requirements will discourage broadband providers from
    engaging in harmful practices.             2018 Order ¶ 209.
    Specifically, the Commission reasoned that public disclosure
    requirements would encourage broadband providers to abide
    by open Internet principles and “incentivize[] quick corrective
    measures by providers if problematic conduct is identified.”
    Id.; see also 
    id. ¶ 217.
    Disclosure could help ensure that “those
    affected by such conduct will be in a position to make informed
    competitive choices or seek available remedies for
    anticompetitive, unfair, or deceptive practices.” 
    Id. ¶ 217.
    But
    Petitioners contend that the Commission’s reliance on the
    transparency rule was unreasonable because “[d]isclosure does
    little for consumers with no practical alternatives.” Mozilla Br.
    55. We disagree and find that the Commission offered a
    reasonable justification for the transparency rules. Since the
    Commission first adopted a transparency rule in 2010, “almost
    no incidents of harm to Internet openness have arisen.” 2018
    Order ¶ 242; see also 
    id. ¶ 241.
    Based on this record, the
    Commission concluded that “public scrutiny and market
    pressure” is an effective “disinfectant” and leads to
    88
    “increasingly fast [broadband provider]-driven resolution[s]”
    when issues do arise. 
    Id. ¶ 243.
    Beyond its claim that the
    transparency rule does not go far enough to protect some
    consumers, Petitioners offer no more elaborate reason for
    explaining how the Commission’s reliance on disclosure was
    impermissible. Seeing none, we reject Petitioners’ arbitrary-
    and-capricious challenge.
    2.   Reliance on Competition
    Petitioners contend that the Commission acted arbitrarily
    and capriciously in changing its view about the magnitude of
    competitive pressures in the fixed broadband market. Recall,
    the “premise of Title II and other public utility regulation is that
    [broadband providers] can exercise market power sufficient to
    substantially distort economic efficiency and harm end users.”
    2018 Order ¶ 123. But in the most recent order, the
    Commission concluded that “fixed broadband Internet access
    providers frequently face competitive pressures that mitigate
    their ability to exert market power.” 2018 Order ¶ 217.
    Petitioners responded with three arguments, none of which we
    find surmount the highly deferential standard of review.
    First, Petitioners claim that the Commission arbitrarily
    accepted a lack of competition in the fixed broadband market.
    For example, Petitioners lament that almost half of Americans
    have either one or no choice for residential high-speed wireline
    broadband providers (download speeds of 25 Mbps and higher
    and upload speeds of 3 Mbps and higher). Another 45 percent
    have only two high-speed wireline options. Despite this
    information, the Commission concludes that competition is
    “widespread.” 2018 Order ¶ 125.
    As part of its overall argument, the Commission suggests
    that “fixed satellite and fixed terrestrial wireless Internet access
    providers” exert “some pressure on [broadband] providers.”
    89
    2018 Order at ¶ 125. When considering this wider range of
    providers, the Commission estimates that 43.9 percent of all
    Americans have a choice of three or more providers offering
    high-speed broadband (download speeds of 25 Mbps and
    upload speeds of 3Mbps and higher), and about 95 percent
    have a choice of three or more providers offering slower
    speeds. 
    Id. ¶ 124.
    But the Commission’s own discussion makes
    clear the limited conclusions these figures can support as to
    competition in wireline services. First, the Commission
    acknowledges that fixed satellite and fixed terrestrial wireless
    Internet access service may not be “broadly effective
    competitors.” 
    Id. ¶ 125.
    So, at best, we can only anticipate that
    “these services, where available, place some competitive
    constraints on wireline providers.” 
    Id. (emphasis added).
    Second, the Commission “make[s] no finding as to whether
    lower speed fixed Internet access services are in the same
    market as higher speed fixed Internet access services.” 
    Id. ¶ 124
    n.454. Taken together, the Commission fails to provide
    a fully satisfying analysis of the competitive constraints faced
    by broadband providers.
    We are, however, satisfied by the Commission’s other
    reasons for believing that competition exists in the broadband
    market. The Commission turns to empirical research that
    supports the claim that the presence of two wireline providers
    is enough to ensure that meaningful competition exists. 
    Id. ¶ 126.
    Consumers in areas with fewer than two providers may
    also reap the benefits of competition; a provider in this area
    “will tend to treat customers that do not have a competitive
    choice as if they do” because competitive pressures elsewhere
    “often have spillover effects across a given corporation.” 
    Id. ¶ 127.
       Additionally, these providers could face hefty
    operational and reputational cost from acting badly in
    uncompetitive areas. 
    Id. Based on
    these reasonable findings
    and our highly deferential standard of review, it was not
    90
    arbitrary for the Commission to conclude that fixed broadband
    providers face competitive pressures.
    Second, Petitioners worry that even if there is competition
    in the local market for broadband, once a consumer chooses a
    broadband provider, that provider has a monopoly on access to
    her. In turn, the provider can use that access to control the
    interaction between edge providers, end users, and others. The
    Title II Order took this “terminating access monopoly” concern
    seriously and found that it enabled broadband providers of all
    types and sizes to raise prices. Petitioners claim that the
    Commission’s 2018 Order shifts from this previous position
    without explanation. This is not so.
    The Commission offered several reasons for rejecting its
    prior finding of a terminating monopoly. For example, it notes
    that many customers can access edge provider’s content from
    multiple sources (i.e., fixed and mobile). See 2018 Order
    ¶ 136. In this way, there is no terminating monopoly. 
    Id. Additionally, the
    Commission argued that even if a terminating
    monopoly exists for some edge providers the commenters did
    not offer sufficient evidence in the record to demonstrate that
    the resulting prices will be inefficient. 
    Id. ¶ 137.
    Given these
    reasons, we reject Petitioners’ claim that the Commission’s
    conclusion on terminating monopolies is without explanation.
    Third, Petitioners argue that the Commission disregards its
    previous determination that broadband provider market power
    is strengthened by the high costs of switching broadband
    providers. The Title II Order found that, when switching
    providers, “consumers may experience []: high upfront device
    installation fees; long-term contracts and early termination
    fees; the activation fee when changing service providers; and
    compatibility costs of owned equipment not working with the
    new service.” Title II Order ¶ 81. However, the Commission’s
    91
    most recent order was skeptical of whether the rate of
    consumers changing providers — the “churn” rate — is as low
    as it previously found. See 2018 Order ¶ 128. More
    importantly, the Commission contends that low churn rates do
    not per se indicate market power. See 
    id. Instead, they
    could
    be a function of competitive actions taken by broadband
    providers to attract and retain customers. See 
    id. And such
    action to convince customers to switch providers, the
    Commission argues, is indicia of material competition for new
    customers. See 
    id. This rationale
    provides a reasoned
    explanation for departing from prior findings on churn rates
    and broadband provider market power.
    3.   Reliance on Antitrust and Consumer Protection
    Laws
    The Commission found that “[i]n the unlikely event that
    ISPs engage in conduct that harms Internet openness,” legal
    regimes like “antitrust law and the FTC’s authority under
    Section 5 of the FTC Act to prohibit unfair and deceptive
    practice” will provide protection for consumers. See 2018
    Order ¶ 140. The Commission reasoned that antitrust and
    consumer protection laws are particularly well-suited to
    addressing openness concerns because “they apply to the whole
    of the Internet ecosystem, including edge providers, thereby
    avoiding tilting the playing field against ISPs and causing
    economic distortions by regulating only one side of business
    transactions on the Internet.” 
    Id. Petitioners argue
    that reliance
    on antitrust and consumer protection law was an improper
    delegation of authority. We disagree.
    Petitioners’ argument relies on Section 706, which directs
    “[t]he Commission” to “encourage the deployment” of
    broadband, 47 U.S.C. § 1302(a) (emphasis added), and Section
    1 of the Communications Act, which likewise directs the FCC
    92
    to make rapid and efficient communications services available
    to all, 
    id. § 151.
    According to Petitioners, these mandates mean
    that the Commission may not “delegate” fundamental
    questions of national telecommunications policy to the
    Department of Justice and the Federal Trade Commission.
    Petitioners liken this case to Local 1976, United
    Brotherhood of Carpenters & Joiners v. NLRB, 
    357 U.S. 93
    (1958), where the Supreme Court held that an agency may not
    “abandon an independent inquiry into the requirements of its
    own statute and mechanically accept standards elaborated by
    another agency under a different statute for wholly different
    purposes.” 
    Id. at 111.
    But the Commission has not
    “mechanically accept[ed] the standards” of other laws as
    satisfying its own. Instead, it has conducted an independent
    assessment of the degree of problematic conduct that has been
    and will be committed by broadband providers and whether, as
    a policy matter, the benefits of restricting that conduct
    outweigh the costs. A reasonable piece of that policy-making
    puzzle, then, is an assessment of other regulatory regimes that
    might already limit the conduct in question. Therefore, it was
    not impermissible for the Commission to recognize that the
    Department of Justice and Federal Trade Commission have the
    ability to police blocking and throttling practices ex post.
    To be sure, the Commission’s discussion of antitrust and
    consumer protection law is no model of agency
    decisionmaking. The Commission theorized why antitrust and
    consumer protection law is preferred to ex ante regulations but
    failed to provide any meaningful analysis of whether these laws
    would, in practice, prevent blocking and throttling. For
    example, the Commission opines that “[m]ost of the examples
    of net neutrality violations discussed in the Title II Order could
    have been investigated as antitrust violations,” see 2018 Order
    ¶ 145, but fails to explain what, if any, concrete remedies might
    93
    address these antitrust violations. It is concerning that the
    Commission provides such an anemic analysis of the safety
    valve that it insists will limit anticompetitive behavior among
    broadband providers. Nonetheless, we cannot go so far as to
    say that this failure is so profound that the agency “entirely
    failed to consider an important aspect of the problem,” State
    
    Farm, 463 U.S. at 43
    , or otherwise engaged in unreasoned
    decisionmaking.        That is especially true because the
    Commission viewed those laws as only one part of a larger
    regulatory and economic framework that it believes will limit
    broadband providers’ engagement in undesirable practices.
    The Commission barely survives arbitrary and capricious
    review on this issue.
    C. Public Safety
    The Governmental Petitioners challenge as arbitrary and
    capricious the Commission’s failure to consider the
    implications for public safety of its changed regulatory posture
    in the 2018 Order. And they are right.
    Congress created the Commission for the purpose of,
    among other things, “promoting safety of life and property
    through the use of wire and radio communications.” 47 U.S.C.
    § 151. So the Commission is “required to consider public
    safety by * * * its enabling act.” Nuvio Corp. v. FCC, 
    473 F.3d 302
    , 307 (D.C. Cir. 2006); see also 47 U.S.C. § 615 (The
    Wireless Communication and Public Safety Act of 1999, Pub.
    L. No. 106–81, § 3, 113 Stat. 1286, 1287, directs the
    Commission to “encourage and support efforts by States to
    deploy comprehensive end-to-end emergency communications
    infrastructure and programs” and to “consult and cooperate
    94
    with State and local officials responsible for emergency
    services and public safety.”).
    An agency’s failure to consider and address during
    rulemaking “an important aspect of the problem” renders its
    decision arbitrary and capricious. State 
    Farm, 463 U.S. at 43
    .
    A “statutorily mandated factor, by definition, is an important
    aspect of any issue before an administrative agency, as it is for
    Congress in the first instance to define the appropriate scope of
    an agency’s mission.” Public Citizen v. Federal Motor Carrier
    Safety Admin., 
    374 F.3d 1209
    , 1216 (D.C. Cir. 2004); accord
    Lindeen v. SEC, 
    825 F.3d 646
    , 657 (D.C. Cir. 2016) (“A rule
    is arbitrary and capricious if an agency fail[s] to consider * * *
    a factor the agency must consider under its organic statute.”)
    (internal quotation marks omitted). When, as here, “Congress
    has given an agency the responsibility to regulate a market such
    as the telecommunications industry that it has repeatedly
    deemed important to protecting public safety,” then the
    agency’s decisions “must take into account its duty to protect
    the public.” 
    Nuvio, 473 F.3d at 307
    .
    A number of commenters voiced concerns about the threat
    to public safety that would arise under the proposed (and
    ultimately adopted) 2018 Order. Specifically, public safety
    officials explained at some length how allowing broadband
    providers to prioritize Internet traffic as they see fit, or to
    demand payment for top-rate speed, could imperil the ability
    of first responders, providers of critical infrastructure, and
    members of the public to communicate during a crisis.
    Santa Clara County, for example, explained that the 2018
    Order would have a “profound negative impact on public
    welfare, health, and safety” communications. J.A. 3332. The
    County and its fire department have implemented new,
    Internet-based services that depend on community members’
    95
    speedy and unimpeded access to broadband Internet. “For
    example, the County’s virtual Emergency Operations Center,
    used by the County and County Fire to coordinate crisis
    response, relies on contributors’ access to the internet on
    nondiscriminatory terms.” J.A. 3333; see also J.A. 3338
    (describing an Internet-based system that allows emergency
    personnel to log in through “a web interface and populate,
    monitor, and act on situational data”); 
    id. (describing a
    critical
    “web-based public alert system” that “provides immediate
    contact with members of the public via email, text, or phone on
    matters such as evacuation or shelter-in-place orders, fires,
    unhealthy air quality, and excessive heat warnings”).
    Similarly, the California Public Utility Commission
    warned that the 2018 Order could “profoundly impair[]” the
    ability of state and local governments “to provide
    comprehensive, timely information to the public in a crisis.”
    J.A. 259. Catherine Sandoval, former Commissioner of the
    California Public Utilities Commission, J.A. 2481, noted that
    the Utility Commission authorized energy utility companies to
    expend taxpayer funds on Internet-based “demand response
    programs” that are “activated during times of high demand, or
    when fire or other emergencies make conservation urgent,” and
    “call on people and connected devices to save power.” J.A.
    2514–2515.       Pacific Gas and Electric, for example,
    implemented a “gas detection box that uses readily available
    [geographic information systems] platforms and tablets” in the
    wake of an earthquake to “quickly survey * * * damaged areas
    and identify and prioritize work to address gas leaks.” J.A.
    2511. And the California Department of Forestry and Fire
    Protection “depends on broadband access, speed, and
    reliability” in order to “track fire threats, fires, and manage
    forests and vegetation” to prevent fires. J.A. 2530–2531.
    96
    Any blocking or throttling of these Internet
    communications during a public safety crisis could have dire,
    irreversible results. “[E]ven if discriminatory practices might
    later be addressed on a post-hoc basis by entities like the
    Federal Trade Commission,” the harm to the public “cannot be
    undone.” J.A. 3333.
    On appeal, the Governmental Petitioners attempt to
    supplement their record comments with documentation of an
    incident involving the (apparently accidental) decision by
    Verizon to throttle the broadband Internet of Santa Clara
    firefighters while they were battling a devastating California
    wildfire. “To ensure that we review only those documents that
    were before the agency, we do not allow parties to supplement
    the record unless they can demonstrate unusual circumstances
    justifying a departure from this general rule.” District Hosp.
    Partners v. Burwell, 
    786 F.3d 46
    , 55 (D.C. Cir. 2015) (internal
    quotation marks omitted). Unusual circumstances will be
    found where (i) “[t]he agency deliberately or negligently
    excluded documents,” (ii) “the district court needed to
    supplement the record with ‘background information’ in order
    to determine whether the agency considered all of the relevant
    factors,” or (iii) “the agency failed to explain administrative
    action so as to frustrate judicial review.” American Wildlands
    v. Kempthorne, 
    530 F.3d 991
    , 1002 (D.C. Cir. 2008).
    The throttling incident involving the Santa Clara
    firefighters occurred in June 2018, six months after the 2018
    Order was issued. Yet, the Governmental Petitioners have
    made no attempt to demonstrate the type of unusual
    circumstances that would allow this court to consider that post-
    Order evidence. Therefore, we decline to consider it.
    Even without that evidence, though, the direct and specific
    comments by Santa Clara County, former California Public
    97
    Utility Commissioner Sandoval, and others repeatedly raised
    substantial concerns about the Commission’s failure to
    undertake the statutorily mandated analysis of the 2018 Order’s
    effect on public safety.2
    In fact, the Commission does not dispute that it was
    obligated to consider public safety. Nor does it claim that it
    specifically addressed public safety in its 2018 Order. Instead,
    the Commission offers two defenses. The Commission argues
    that the June 2018 incident with Verizon demonstrates that
    light-touch rules promote public safety because, in response to
    the negative public reaction to its throttling practice, Verizon
    introduced a new plan for public safety customers. The
    Commission also reasons that the Governmental Petitioners’
    concerns “about government services are issues that apply to
    all edge providers, public and private.” Commission Br. 95.
    Those arguments are too little, too late.
    First, the argument about Verizon’s response was not
    made in the 2018 Order to explain the Commission’s bypassing
    of the required public-safety analysis. In fact, it was not made
    at all because, as noted, this incident postdated the final 2018
    Order by half a year. Just as we will not expand the record to
    consider documentation about Verizon’s decision to throttle
    the Santa Clara County Fire Department after the 2018 Order
    2
    Most of Santa Clara County’s comments appear to have been
    made outside the comment window. However, the Commission has
    not suggested that those comments are untimely. Therefore, it has
    itself forfeited any forfeiture challenge to Santa Clara County’s
    arguments. See National Corn Growers Ass’n v. EPA, 
    613 F.3d 266
    ,
    275 (D.C. Cir. 2010) (considering letter where EPA did not suggest
    until oral argument that it was untimely); BNSF Ry. Co. v. Surface
    Transp. Bd., 
    604 F.3d 602
    , 611 (D.C. Cir. 2010) (“[A] forfeiture can
    be forfeited by failing on appeal to argue an argument was
    forfeited.”).
    98
    was issued, we will not consider the public statements made by
    Verizon in response to that controversy.           Under the
    Administrative Procedure Act as elsewhere, what is good for
    the goose is good for the gander.
    Nor, for that matter, will we consider arguments about
    those statements’ relevance to the 2018 Order surfaced for the
    first time on appeal. “[C]ourts may not accept appellate
    counsel’s post hoc rationalization for agency action,” because
    longstanding Supreme Court precedent “requires that an
    agency’s discretionary order be upheld, if at all, on the same
    basis articulated in the order by the agency itself.” Temple
    Univ. Hosp. v. NLRB, 
    929 F.3d 729
    , 734 (D.C. Cir. 2019)
    (quoting Erie Brush & Mfg. Corp. v. NLRB, 
    700 F.3d 17
    , 23
    (D.C. Cir. 2012)); see SEC v. Chenery Corp., 
    332 U.S. 194
    ,
    196 (1947).
    Second, the Commission did not claim in the 2018 Order
    that the public safety issues raised by the Governmental
    Petitioners could be ignored because they were redundant of
    the arguments made by edge providers. Therefore, the
    Commission’s argument is an off-limits post hoc
    rationalization. See Temple Univ. 
    Hosp., 929 F.3d at 734
    .
    And the argument is facially inadequate to boot. The
    Commission’s after-the-fact reasoning entirely misses the fact
    that, whenever public safety is involved, lives are at stake. As
    noted by Santa Clara County, unlike most harms to edge
    providers incurred because of discriminatory practices by
    broadband providers, the harms from blocking and throttling
    during a public safety emergency are irreparable. People could
    be injured or die. See J.A. 3333; see also Hawkins v. Defense
    Logistics Agency of the Dep’t of Defense, 
    99 F.3d 1149
    (Table),
    *1 (10th Cir. 1996) (using imminent threat of death as an
    example of irreparable harm); New York v. Sullivan, 
    906 F.2d 99
    910, 918 (2d Cir. 1990) (finding irreparable harm when the
    “[d]enial of benefits potentially subjected claimants to
    deteriorating health, and possibly even death”).
    Apparently recognizing the problem, the Broadband
    Intervenors United States Telecom, et al. try a different tack.
    They argue that—unbeknownst even to the Commission
    itself—the 2018 Order did consider public safety. The four
    references that the Broadband Intervenors cite do not hold up.
    First, the Broadband Intervenors claim that the
    Commission found “‘scant evidence’ of threats to public
    safety.” Broadband Br. 37 (citing 2018 Order ¶ 265 & n.978).
    What the Commission actually found is that there was “scant
    evidence that end users, under different legal frameworks, have
    been prevented by blocking or throttling from accessing the
    content of their choosing.” 2018 Order ¶ 265. No mention of
    public safety.
    Second, the Broadband Intervenors say the 2018 Order
    allowed that States “could continue to play their vital role” in
    advancing public safety. Broadband Br. 37 (citing 2018 Order
    ¶ 196 & n.737). Not quite. The full quote was that States “will
    continue to play their vital role in protecting consumers from
    fraud, enforcing fair business practices, for example, in
    advertising and billing, and generally responding to consumer
    inquiries and complaints.” 2018 Order ¶ 196. While
    important, those topics are not about public safety.
    Third, the Broadband Intervenors point to the
    Commission’s conclusion that national security objections to
    the 2018 Order were vague and unsubstantiated. Broadband
    Br. 37 (citing 2018 Order ¶ 258 n.943). But that Commission
    statement was made in reference to a comment in the record
    about “a September 11-type of failure of imagination about
    risks to America’s national security and democracy.” 2018
    100
    Order ¶ 258 n.943. That narrow and isolated response says
    nothing about the multi-faceted public safety concerns
    associated with subjecting emergency services providers, other
    public health providers, and the members of the public who
    depend on those services to paid prioritization and blocking
    and throttling.
    Finally, the Broadband Intervenors note the Commission’s
    conclusion that “any remaining unaddressed harms” were
    “small relative to the costs of implementing more heavy-
    handed regulation.” Broadband Br. 37 (citing 2018 Order
    ¶ 116). That Rorschachian speculation is hardly the focused
    and specific study of public safety implications that the law
    requires.
    The Commission’s disregard of its duty to analyze the
    impact of the 2018 Order on public safety renders its decision
    arbitrary and capricious in that part and warrants a remand with
    direction to address the issues raised.
    D. Reliance Interests
    Both sets of Petitioners argue that the Commission paid
    too little heed to the reliance that various parties—particularly
    edge providers and state and local governments—allegedly
    placed on the Title II Order in making investments that
    Petitioners see as jeopardized by the Commission’s action
    here. See Mozilla Br. 71–72; Governmental Pet’rs’ Br. 29–32.
    The Commission acknowledged, as it must, the significance of
    reliance interests as a potential weight against its decision, see
    2018 Order ¶ 159; cf. Fox 
    Television, 556 U.S. at 515
    –516;
    Mingo Logan Coal Co. v. EPA, 
    829 F.3d 710
    , 718–719 (D.C.
    Cir. 2016), but found the submissions wanting. It argues first
    that parties have not established any reliance to begin with, for
    lack of any “attempt to attribute particular portions of th[eir]
    investment to any reliance on the Title II Order.” 2018 Order
    101
    ¶ 159; see also 
    id. at n.588
    (quoting comment observing that
    the complainants had not “provide[d] any empirical basis for
    speculating that edge investment since 2015 would have been
    substantially lower in the absence of Title II regulation”).
    Second, even if reliance had been shown, the Commission
    maintains that it would not have been reasonable under the
    circumstances. 
    Id. ¶ 159.
    As to the Commission’s first argument, the issue is
    whether the Commission was arbitrary or capricious in finding
    that there were no serious reliance interests attributable to the
    Title II Order because it was not convinced that edge providers’
    investments in the time since the Title II Order had been made
    in reliance on that order. We lack adequate briefing on the
    issues we would need to settle here, including what findings an
    agency must make to support a conclusion that serious reliance
    interests do not exist in the first place—issues that neither the
    Supreme Court, see Encino Motorcars, LLC v. Navarro, 136 S.
    Ct. 2117 (2016); Fox 
    Television, 556 U.S. at 515
    –516, nor our
    circuit has resolved. Given as much, and in light of the
    availability of other grounds for decision, we will not pass on
    the Commission’s first argument. Rather, we will uphold the
    agency’s treatment of reliance interests based on its alternative
    argument. That is, assuming the change in agency position
    implicated serious reliance interests, we agree with the
    Commission that such reliance would have been unreasonable
    on the facts before us.
    Besides noting the record’s loose link between investment
    and particular rules, the Commission says that it was not
    persuaded that any “such reliance would have been reasonable
    in any event, given the lengthy prior history of information
    service classification of broadband Internet access service,
    which we are simply restoring here after the brief period of
    departure initiated by the Title II Order.” 2018 Order ¶ 159.
    102
    Insofar as the regulation on which reliance is asserted is
    simply the Title II Order’s package of rules and policies, we
    think this is a fair response. First, the 2015 rules had been in
    effect “barely two years before the Commission proposed to
    repeal them,” a limited period to engender reliance.
    Commission Br. 92–93; see 2018 Order ¶ 159 (referring to a
    “brief period of departure” from the prior classification policy
    “initiated by the Title II Order”); see also Encino 
    Motorcars, 136 S. Ct. at 2126
    (describing “decades of industry reliance on
    the Department’s prior policy”); 
    USTA, 825 F.3d at 709
    –710
    (crediting 2015 Commission’s rebuttal to Petitioners’ asserted
    reliance interests on the basis that “just five years after Brand
    X” the Commission sought comments on reclassifying
    broadband). Second, in light of the Commission’s approach to
    classifying cable modem service and Internet access since the
    late 1990s, the Title II Order could reasonably have been
    viewed as a regulatory step that might soon be reversed. See
    2018 Order ¶ 159 (referring to “lengthy prior history of
    information service classification of broadband Internet access
    service”).
    In its brief before us, the Commission adds a third point.
    In the two-year period between the Title II Order and the
    Commission’s announcement of its intention to return to prior
    policies, the Title II Order faced persistent legal challenges.
    Commission Br. 93. (Indeed, certiorari on the legal assaults
    was denied only on November 5, 2018, see, e.g., United States
    Telecom Ass’n v. FCC, 
    139 S. Ct. 475
    (2018), after issuance of
    the 2018 Order itself, with three Justices dissenting from denial
    of certiorari, id.) Any reliance on the rules of the Title II Order
    would not have been reasonable unless tempered by substantial
    concerns for legal or political jeopardy.
    But as we already mentioned, Petitioners do not confine
    themselves to the Title II Order as the basis for their claim
    103
    (though they seem to view our overturning the Commission’s
    overturning of that order as the proper remedy). According to
    Mozilla, edge investment has “relied not simply on a particular
    classification decision, but on the Commission’s unwavering
    commitment * * * to use what powers it has to ensure that
    consumers would have free access to all lawful internet
    content” “beginning at least with” a 2005 Commission policy
    statement. Mozilla Br. 71–72; see In re Appropriate
    Framework for Broadband Access to the Internet over Wireline
    Facilities, 20 FCC Rcd. 14986 (2005) (“2005 Policy
    Statement”). One of the comments Mozilla points to takes the
    matter back to the statement of Commission Chairman Powell
    in February 2004 outlining four principles of “internet
    freedom,” J.A. 3348 & n.5, reflected in the 2005 Policy
    Statement. Each of those principles was meant “to encourage
    broadband deployment and preserve and promote the open and
    interconnected nature of the public Internet.” 2005 Policy
    Statement, 20 FCC Rcd. at 14988. And Governmental
    Petitioners claim the 2018 Order “overturned a much longer
    history of open Internet protections.” Governmental Pet’rs’ Br.
    31.
    The Commission did not expressly respond to this variant
    of the “reliance” argument. But Petitioners’ effort to define the
    status quo as a whole era of Commission policy, from
    Chairman Powell’s 2004 statement to the 2018 Order (or at
    least the underlying NPRM), renders the claim more or less
    non-falsifiable. While outside observers may associate “light
    touch” with a distinct era in regulation and “open Internet” with
    another era, the successive Commission majorities have
    consistently vowed fealty to both. The Title II Order at
    multiple locations insisted that the new policy was “light-
    touch,” see, e.g., Title II Order ¶¶ 5, 37, 39, 382, and the 2018
    Order similarly sees its policy as a new and better way to
    advance precisely what Petitioners see as the Commission’s
    104
    age-old policy, an “open Internet,” see 2018 Order ¶¶ 1, 4, 18.
    Here the Commission, though recognizing that the phrase “net
    neutrality” is in some circles equated with application of Title
    II, draws a clear contrast between “net neutrality per se” and
    “Title II regulation,” suggesting that the Powell principles
    evinced a commitment to the former but not the latter. 2018
    Order ¶ 95. And, far from eschewing any effort to prevent
    unreasonable discrimination, it sees its insistence on
    transparency as well-designed to advance that goal. See, e.g.,
    
    id. ¶¶ 116,
    142, 153, 209. Petitioners may distrust the
    Commission’s stated dedication to an open Internet, but the
    ubiquity of Commissioners’ attachment to an open Internet (as
    well as to “light touch”) makes it impossible to rest a reliance
    claim on some notion that either phrase represented a discrete
    policy that has appeared and disappeared with each zig or zag
    of Commission analysis.
    We conclude that the agency’s treatment of reliance
    interests is not arbitrary or capricious.
    E. Pole Attachments
    The Governmental Petitioners express substantial concern
    that, in reclassifying broadband Internet as an information
    service, the Commission, without reasoned consideration, took
    broadband outside the current statutory scheme governing pole
    attachments. That is because the Communications Act defines
    the “pole attachment[s]” it subjects to regulation by reference
    to “telecommunications service[s]” under Title II, not
    information services under Title I. 47 U.S.C. § 224(a)(4).
    We agree. The Commission offered, at best, scattered and
    unreasoned observations in response to comments on this
    issue. Because the Commission did not adequately address
    how the reclassification of broadband would affect the
    105
    regulation of pole attachments, we remand for the Commission
    to do so.
    For purposes of the Communications Act, a “pole
    attachment” is defined as an “attachment * * * to a pole, duct,
    conduit, or right-of-way owned or controlled by a utility.” 47
    U.S.C. § 224(a)(4). As the Commission has recognized, pole
    attachments are “crucial to the efficient deployment of
    communications networks including, and perhaps especially,
    new entrants.” See Title II Order ¶ 56; 
    id. ¶ 413
    (recognizing
    that Title II classification “offers other benefits at the state
    level, including access to public rights of way, which some
    broadband providers reportedly utilize to deploy networks”)
    (internal quotation marks omitted). The Commission has also
    “recognized repeatedly” that “[l]eveling the pole attachment
    playing field for new entrants that offer solely broadband
    services * * * removes barriers to deployment and fosters
    additional broadband competition.” 
    Id. ¶ 478.
    The Communications Act establishes as a default rule that
    “the Commission shall regulate the rates, terms, and conditions
    for pole attachments.” 47 U.S.C. § 224(b)(1). Yet the Act also
    allows any State to displace Commission regulation if the State
    certifies to the Commission that it is regulating pole
    attachments. See 
    id. § 224(c)
    (“Nothing in this section shall be
    construed to apply to, or to give the Commission jurisdiction
    with respect to rates, terms, and conditions or access to poles,
    ducts, conduits, and rights-of-way * * * for pole attachments in
    any case where such matters are regulated by a State.”).
    Approximately twenty States regulate pole attachments under
    this regime. See States That Have Certified That They Regulate
    Pole Attachments, 25 FCC Rcd. 5541, 5541–5542 (May 19,
    2010); 2018 Order ¶ 185.
    106
    But this whole regulatory scheme applies only to cable
    television systems and “telecommunications service[s]”—
    categories to which, under the 2018 Order, broadband no
    longer belongs. See 47 U.S.C. § 224(a)(4) (defining “pole
    attachment” as “any attachment by a cable television system or
    provider of telecommunications service to a pole, duct,
    conduit, or right-of-way owned or controlled by a utility”)
    (emphasis added); 
    id. § 224(f)(1)
    (“A utility shall provide a
    cable television system or any telecommunications carrier with
    nondiscriminatory access to any pole, duct, conduit, or right-
    of-way owned or controlled by it.”) (emphasis added). Section
    224’s regulation of pole attachments simply does not speak to
    information services. Which means that Section 224 no longer
    speaks to broadband.
    The Commission must have seen this problem coming
    because it sought comment on the specific issue of “the impact
    of reclassification * * * with respect to pole attachments.” See
    NPRM at ¶ 69. The Governmental Petitioners foresaw it too.
    During the comment period, they alerted the Commission that
    reclassification would disrupt this settled legal and regulatory
    foundation. See J.A. 234–240. Given that “[u]nauthorized,
    and sometimes hazardous, attachments to poles are a regular
    occurrence,” the Governmental Petitioners expressed concern
    that broadband providers might invoke reclassification “to
    ignore, avoid, deny or undercut” the States’ power to impose
    pole-attachment safety regulations. J.A. 236. They also
    warned that reclassification would take away broadband
    providers’ “statutory right, under federal law, to
    nondiscriminatory, just and reasonable access to the poles and
    conduit that cable providers and telecommunications carriers
    enjoy.” J.A. 236. On top of that, reclassification “without a
    successful alternative for pole attachment rights under federal
    law could delay or harm [broadband] deployment and that, in
    107
    turn, could negatively affect competition * * * throughout the
    nation.” J.A. 239.
    The Commission’s response makes no sense. In some
    portions of the 2018 Order, the Commission candidly
    acknowledged that reclassification means that Section 224 no
    longer governs broadband. See 2018 Order ¶ 163 n.600 (“We
    make clear that as a result of our decision to restore the
    longstanding classification of broadband Internet access
    service as an information service, Internet traffic exchange
    arrangements are no longer subject to Title II and its attendant
    obligations,” including obligations under Section “224 (pole
    attachments).”).
    But in other portions of the Order, the Commission seemed
    to whistle past the graveyard, implying without reasoned basis
    that Section 224 would continue to govern reclassified
    broadband. See 2018 Order ¶ 185 (“[I]n the twenty states and
    the District of Columbia that have reverse-preempted
    Commission jurisdiction over pole attachments, those states
    rather than the Commission are empowered to regulate the pole
    attachment process.”); 
    id. ¶ 186
    (“[W]e caution pole owners
    not to use this Order as a pretext to increase pole attachment
    rates or inhibit broadband providers from attaching
    equipment—and we remind pole owners of their continuing
    obligation to ‘offer rates, terms, and conditions [that] are just
    and reasonable.’”) (quoting 47 U.S.C. § 224(b)(1)); 
    id. ¶ 196
    (“Nor do we deprive the states of any functions expressly
    reserved to them under the Act, such as * * * exclusive
    jurisdiction over poles, ducts, conduits, and rights-of-way
    when a state certifies that it has adopted effective rules and
    regulations over those matters under section 224(c).”).
    Both cannot be true.
    108
    The best explanation the Commission provided was its
    reference to the 2007 Wireless Broadband Order. “As to
    section 224,” the Commission said, the Wireless Broadband
    Order directs that “where the same infrastructure would
    provide ‘both telecommunications and wireless broadband
    Internet access service,’ the provisions of section 224
    governing pole attachments would continue to apply to such
    infrastructure used to provide both types of service.” 2018
    Order ¶ 188 (quoting 22 FCC Rcd. at 5922–5923). According
    to the Commission, its “rationale from 2007, that commingling
    services does not change the fact that the facilities are being
    used for the provisioning of services within the scope of the
    statutory provision, remains equally valid today.” 
    Id. ¶ 189.
    That “clarification,” the Commission concluded, “will alleviate
    concerns that wireless broadband Internet access providers not
    face increased barriers to infrastructure deployment as a result
    of today’s reclassification.” 
    Id. That is
    all well and good for providers who “commingl[e]”
    telecommunication and broadband services.             Wireless
    Broadband Order at 5922. But it does nothing to “alleviate
    concerns” regarding standalone broadband, which Americans
    have come to “increasingly * * * favor.” J.A. 2268 (citing
    letter from members of Congress); see also J.A. 2270
    (discussing “new entrants such as Google Fiber who offer
    standalone broadband services”). That is because the plain text
    of Section 224 speaks only of telecommunications services and
    cable television services. So under the 2018 Order, the statute
    textually forecloses any pole-attachment protection for
    standalone broadband providers.
    The Commission was required to grapple with the lapse in
    legal safeguards that its reversal of policy triggered. See
    Colorado Fire Sprinkler, Inc. v. NLRB, 
    891 F.3d 1031
    , 1038
    (D.C. Cir. 2018); see also Lone Mountain Processing, Inc. v.
    109
    Secretary of Labor, 
    709 F.3d 1161
    , 1164 (D.C. Cir. 2013). But
    it failed to do so. Because the 2018 Order was arbitrary and
    capricious in this respect, we remand for the Commission to
    confront the problem in a reasoned manner. See Fogo De Chao
    (Holdings) Inc. v. United States Dep’t of Homeland Sec., 
    769 F.3d 1127
    , 1141 (D.C. Cir. 2014) (agency’s judgment “fails the
    requirement of reasoned decisionmaking under arbitrary and
    capricious review” where it “was neither adequately explained
    * * * nor supported by agency precedent”); see also Hawaiian
    Dredging Constr. Co. v. NLRB, 
    857 F.3d 877
    , 881 (D.C. Cir.
    2017) (citing State 
    Farm, 463 U.S. at 52
    ).
    F. Lifeline Program
    The Lifeline Program subsidizes low-income consumers’
    access to certain communications technologies, including
    broadband Internet access. See 47 U.S.C. §§ 214, 254; 47
    C.F.R. § 54.403. The Governmental Petitioners challenged the
    2018 Order on the ground that reclassification would eliminate
    the statutory basis for broadband’s inclusion in the Program.
    See 47 U.S.C. §§ 214(e), 254(e). The Commission brushed off
    their concern. That was straightforward legal error which
    requires remand.
    Since its inception, the Commission has been responsible
    for “mak[ing] available, so far as possible * * * a rapid,
    efficient, Nation-wide, and world-wide wire and radio
    communication service with adequate facilities at reasonable
    charges.” Communications Act of 1934, Pub. L. No. 416, 48
    Stat. 1064, 1064 (codified at 47 U.S.C. § 151); see also
    National 
    Lifeline, 921 F.3d at 1106
    . In 1985, the Commission
    implemented this national policy of universal service by
    creating the Lifeline Program. MTS and WATS Market
    Structure; and Establishment of a Joint Board; Amendment, 50
    Fed. Reg. 939 (Jan. 8, 1985); see also National Lifeline, 
    921 110 F.3d at 1106
    (describing the Lifeline Program as meant to
    “ensure * * * low-income consumers [have] access to
    affordable, landline telephone service”).
    In 1996, Congress codified the Lifeline Program as part of
    the Communications Act. See 47 U.S.C. §§ 214, 254. The
    statutory provisions set forth, among other things, a program-
    funding mechanism, guidelines for state participation, and a
    designation scheme for determining Program eligibility. 
    Id. §§ 214,
    254(d) & (f). The Act also declared that “[u]niversal
    service is an evolving level of telecommunications services
    that the Commission shall establish periodically * * *, taking
    into account advances in telecommunications and information
    technologies and services.” 
    Id. § 254(c)(1).
    With Congress’s directive in mind, the Commission added
    broadband to the Lifeline Program in 2016. See In re Lifeline
    & Link UP Reform and Modernization, 31 FCC Rcd. 3962,
    3964 (2016) (“Lifeline Order”); 47 C.F.R. § 54.403. In doing
    so, it sought to “enable all Americans to share in the
    opportunities broadband connectivity provides” by allowing
    “low income consumers to apply Lifeline’s $9.25 per month
    discount to stand-alone broadband service.” FCC, Lifeline
    Support         for       Affordable           Communications,
    https://www.fcc.gov/sites/default/files/lifeline_support_for_af
    fordable_communications.pdf. In the Lifeline Order, the
    Commission repeatedly referenced Congress’s overriding
    command to provide “telecommunication services to
    consumers.” Lifeline Order at 3964 (emphasis added); see also
    
    id. at 3970,
    3972, 3975, 3994, 4084.
    That made sense, given that Congress had tethered
    Lifeline eligibility to common-carrier status. To receive
    Lifeline support under the Act, an entity must be designated as
    an eligible telecommunications carrier—a category that
    111
    extends to common carriers regulated under Title II. See 47
    U.S.C. §§ 254(e), 214(e). This congressional understanding
    pervades the statute. See, e.g., 
    id. § 214(e)(2)
    (“A State
    commission shall upon its own motion or upon request
    designate a common carrier that meets the requirements of
    paragraph (1) as an eligible telecommunications carrier for a
    service area designated by the State commission.”) (emphasis
    added); 
    id. § 214(e)(3)
    (“If no common carrier will provide the
    services that are supported by Federal universal service support
    mechanisms * * *, the Commission [or a State commission]
    shall determine which common carrier or carriers are best able
    to provide such service to the requesting unserved community
    or portion thereof and shall order such carrier or carriers to
    provide such service.”) (emphasis added); 
    id. § 214(e)(6)
    (“In
    the case of a common carrier providing telephone exchange
    service and exchange access that is not subject to the
    jurisdiction of a State commission, the Commission shall upon
    request designate such a common carrier that meets the
    requirements of paragraph (1) as an eligible
    telecommunications carrier for a service area designated by the
    Commission.”) (emphasis added).
    As a result, broadband’s eligibility for Lifeline subsidies
    turns on its common-carrier status. See In re FCC 11-161, 
    753 F.3d 1015
    , 1048–1049 (10th Cir. 2014) (observing, before
    broadband was classified as a telecommunications service, that
    “broadband-only providers * * * cannot be designated as
    ‘eligible telecommunications carriers’” because “under the
    existing statutory framework, only ‘common carriers’ * * * are
    eligible to be designated as ‘eligible telecommunications
    carriers’”). As a matter of plain statutory text, the 2018 Order’s
    reclassification of broadband—the decision to strip it of Title
    II common-carrier status—facially disqualifies broadband
    from inclusion in the Lifeline Program.
    112
    Several commenters raised this concern in response to the
    NPRM. The Commission backhanded the issue, stating that it
    “need not address concerns in the record about the effect of
    * * * reclassification” given its “authority under Section 254(e)
    of the Act to provide Lifeline support to [Eligible
    Telecommunications Carriers] that provide broadband service
    over facilities-based broadband-capable networks that support
    voice service.” 2018 Order ¶ 193.
    That response does not work.              The Commission
    completely fails to explain how its “authority under Section
    254(e)” could extend to broadband, even “over facilities-based
    broadband-capable networks that support voice service,” 2018
    Order ¶ 193, now that broadband is no longer considered to be
    a common carrier. After all, Section 254(e) provides that “only
    an eligible telecommunications carrier designated under
    section 214(e) of this title shall be eligible to receive specific
    Federal universal service support.” 47 U.S.C. § 254(e)
    (emphasis added). And the statute expressly defines an
    “eligible telecommunications carrier” as a “common carrier”
    under Title II. 
    Id. § 214(e)(1).
    For whatever it is worth, the Commission has proven
    unable to explain itself in this litigation either. Rather than
    engage with the Governmental Petitioners’ statutory argument,
    the Commission takes the position that it has “broad
    discretion” to “defer consideration of particular issues to future
    proceedings,” and it “need not address all problems in one fell
    swoop.” Commission Br. 110 (quoting United States Telecom
    Ass’n v. FCC, 
    359 F.3d 554
    , 588 (D.C. Cir. 2004)).
    That is a non-sequitur. If, as the statute seems to clearly
    say, the Commission’s reclassification of broadband as an
    information service precludes the agency from solving this
    problem in future proceedings, the possibility of future
    113
    proceedings is irrelevant. At the very least, the Governmental
    Petitioners identified a “relevant and significant” problem that
    the Commission was obligated to address in a reasoned way.
    See Liliputian Sys., Inc. v. Pipeline & Hazardous Materials
    Safety Admin., 
    741 F.3d 1309
    , 1312 (D.C. Cir. 2014) (“An
    agency’s failure to respond to relevant and significant public
    comments generally demonstrates that the agency’s decision
    was not based on a consideration of the relevant factors.”)
    (formatting modified). So we must remand this portion of the
    2018 Order for the Commission to address the issue now.
    G. Cost-Benefit Analysis
    Petitioners next take exception to the Commission’s cost-
    benefit analysis. See 2018 Order ¶¶ 304–323; Mozilla Br. 72–
    74. They express two sets of concerns. The first set goes to
    the general nature of the analysis (qualitative rather than
    quantitative) and to the NPRM’s allegedly having failed to
    alert the public to the possibility that the Commission would
    pursue a purely qualitative analysis. The second set goes to
    some specific treatments of benefits and costs. We review
    cost-benefit analyses with deference, National Ass’n of Home
    Builders v. EPA, 
    682 F.3d 1032
    , 1040 (D.C. Cir. 2012), and
    here find nothing arbitrary in the Commission’s choice of
    methodology or explanation of its conclusions. Petitioners’
    objections to the Commission’s treatment of several issues
    arguably classifiable as part of cost-benefit analysis are treated
    under separate headings of this opinion. See Parts V.A–B.
    The notice argument rests on a claim that the NPRM’s
    discussion committed the Commission to a quantitative
    analysis under OMB Circular A-4. It fails on two grounds: the
    NPRM made clear that the Commission was not wedded to the
    idea of following the Circular, and the Circular itself calls for
    114
    a qualitative analysis under circumstances that the Commission
    reasonably invoked.
    The Commission said in the NPRM that it “propose[s] to
    follow the guidelines in Section E * * * of * * * Circular A-4.”
    NPRM ¶ 107 (emphasis added). It then added that it was
    “seek[ing] comment on following Circular A-4 generally” and
    “on any specific portions of Circular A-4 where the
    Commission should diverge from the guidance provided.” 
    Id. (emphasis added).
           “Commenters should explain why
    particular guidance in Circular A-4 should not be followed in
    this circumstance and should propose alternatives.” 
    Id. (emphasis added).
    The passage leaves little doubt that the
    Commission envisioned possibly deviating from Circular A-4
    in ways large and small, necessarily including a possibility of
    electing qualitative analysis even where the Circular
    contemplates quantitative.        Even assuming that the
    Commission applied a laxer standard than prescribed by the
    Circular for choosing qualitative over quantitative (see below),
    notice of such a possible detour was adequate and the
    Commission’s way of proceeding was a “logical outgrowth” of
    the notice, as suffices under our cases. See Covad Commc’ns
    Co. v. FCC, 
    450 F.3d 528
    , 548 (D.C. Cir. 2006); see also
    
    USTA, 825 F.3d at 700
    .
    Further, although not essential to rejection of this claim,
    the Commission’s ultimate decision to conduct a qualitative
    analysis appears consistent with the Circular. The latter
    provides that “where no quantified information on benefits,
    costs, and effectiveness can be produced, the regulatory
    analysis should present a qualitative discussion of the issues
    and evidence.” OMB Circular A-4 at 10 (2003). The
    Commission, after finding that “the record provides little data
    that would allow [the agency] to quantify the magnitudes of
    many of” the costs and benefits, adopted the qualitative
    115
    approach, seeking to assess “the direction of the effect on
    economic efficiency.” 2018 Order ¶ 304; cf. National Ass’n of
    Regulatory Util. Comm’rs v. FCC, 
    737 F.2d 1095
    , 1140–1141
    (D.C. Cir. 1984) (holding that the Commission had acted
    within the scope of its “broad discretion” in a context where
    “no reliable data was available”).
    Mozilla makes no effort to undermine the Commission’s
    finding that a quantitative analysis was infeasible. In fact, as
    we will see shortly, its fault-finding (apart from matters
    addressed elsewhere in this opinion) focuses on exactly the sort
    of issues on which hard and convincing quantitative data would
    be difficult to find—the sort of issues that are the basis of the
    Circular’s warning that “[w]hen important benefits and costs
    cannot be expressed in monetary units,” attempting a
    quantitative cost-benefit analysis “can even be misleading,
    because the calculation of new benefits in such cases does not
    provide a full evaluation of all relevant benefits and costs.”
    OMB Circular A-4 at 10.
    We should add that we are hard-pressed to imagine how
    the notice defect claimed by Petitioners might have hurt them
    in a legally significant way. Notice typically serves to help
    parties marshal their arguments and analyses to persuade an
    agency to see matters their way. If Petitioners had offered an
    array of useful quantitative analyses and the Commission had
    turned it aside because of its decision in favor of a qualitative
    approach, we could understand. But Petitioners claim no such
    thing, and it is hard to imagine that an agency pursuing
    qualitative analysis would on that account turn away a
    quantitative one (which, one supposes, would typically
    encompass qualitative elements). Cf. IA Br. 19 (criticizing the
    Commission for failing to “acknowledg[e] that economists
    might not yet be able to” quantify certain economic effects of
    the Title II Order).
    116
    As to the substance of the cost-benefit analysis, Petitioners
    set out four challenges. Two of these are addressed separately
    in this opinion—the claims that the Commission overlooked
    particular reliance interests, see Part V.D., and overstated the
    costs of Title II classification by relying selectively on studies
    whose defects it ignored, see Part V.A.
    We thus turn directly to the other two, which overlap so
    heavily as to amount to one. We identify them separately, but
    will treat them together. First, Petitioners claim that the agency
    did not account for harms to “innovation and democratic
    discourse” that the 2018 Order would supposedly bring about.
    Mozilla Br. 73. Second, they assert that the Commission failed
    to factor in the “cost to consumers of decreased innovation and
    other consumer harms,” citing a comment about Comcast’s
    interference with file sharing, see J.A. 1098, and news stories
    from 2007–2008 describing how “Comcast had blocked users’
    ability to share copies of the King James Bible,” Mozilla Br.
    73–74; see also J.A. 2429 & n.198.
    As an initial matter, Petitioners do not explain how the
    2018 Order would harm “innovation and democratic
    discourse” beyond quoting an assertion by a commentator that
    “ex post enforcement would hamstring nascent industries.”
    Mozilla Br. 73; see J.A. 1097. This bare-bones objection is not
    enough to pose an issue for the court, which after all is not
    generally expected to do counsel’s work. See Masias v. EPA,
    
    906 F.3d 1069
    , 1077 (D.C. Cir. 2018). In any event, the
    Commission’s cost-benefit analysis makes a reasonable case
    that its “light-touch” approach is more conducive to innovation
    and openness than the Title II Order. We do note that antitrust
    enforcement by the Commission’s sister agencies (the
    Department of Justice and the FTC, the latter being released by
    the 2018 Order from the statutory exclusion effected by
    application of Title II) aims at generating and protecting
    117
    competition, see Part V.B.3; at least as a general matter, it
    seems reasonable to expect that competition would tend to
    multiply the voices in the public square. The agency says as
    much, noting that “the transparency rule and the ISP
    commitments backed up by FTC enforcement are targeted to
    preserving free expression, particularly the no-blocking
    commitment,” and that “[t]he market competition that antitrust
    law preserves will protect values such as free expression.”
    2018 Order ¶ 153. At the same time, the Commission frankly
    acknowledges that “[t]he competitive process and antitrust
    would not protect free expression in cases where consumers
    have decided that they are willing to tolerate some blocking or
    throttling in order to obtain other things of value.” 
    Id. at n.558.
    As to harms akin to those such as interference with file-
    sharing, the Commission observes that commenters could point
    “only to a handful of incidents that purportedly affected
    Internet openness, while ignoring the two decades of
    flourishing innovation that preceded the Title II Order.” 2018
    Order ¶ 110; see also 
    id. ¶ 116.
    The colorful example of
    difficulties with downloading the King James Bible arose from
    Comcast’s “throttling of BitTorrent, a peer-to-peer networking
    protocol,” 
    id. ¶ 112,
    which had nothing in particular to do with
    the Bible, see J.A. 2429 n.198, and which Petitioners do not
    suggest is of a type likely to recur. Further, Petitioners do
    nothing to refute the agency’s claim that “since 2008, few
    tangible threats to the openness of the Internet have arisen.”
    2018 Order ¶ 113; see 
    id. ¶¶ 111–114
    (describing examples of
    similar conduct).
    Against this backdrop of what the Commission views as
    slim empirical support for relevant harms, see, e.g., 2018 Order
    ¶ 153, the agency argues that the benefits of “maintaining a free
    and open Internet” are “positive and considerable,” 
    id. ¶ 313.
    It contends that its “light-touch” strategy—rooted in
    118
    transparency rules and “enforcement under antitrust and
    consumer protection law,” id.—will protect Internet openness
    and help “prevent and remedy harmful behaviors by ISPs,” 
    id., without the
    costs imposed by Title II regulations (measured by
    “the economic welfare of consumers, ISPs, and edge
    providers,” 
    id. ¶ 306).
    For example, a “light-touch” route
    incentivizes greater “deployment of [broadband] service to
    unserved areas,” 
    id. ¶ 308,
    so that more people can get online
    sooner and enjoy content at higher speeds—especially those
    “in rural and/or lower-income communities” with
    “underserved and hard-to-reach populations,” 
    id. ¶ 106.
    Such
    an outcome, presumably, would bolster democratic discourse
    and participation.
    In weighing the costs and benefits of Title II regulation
    against those of a deregulatory strategy, the agency finds that,
    on almost every point, the latter approach is preferable. Title
    II regulation would “discourage[] investment in the network,”
    which, in turn, may cause “society * * * to lose some spillover
    benefits,” 2018 Order ¶ 310, including forgone “improvements
    in productivity and innovation that occur because broadband is
    a general-purpose technology,” 
    id. Conduct rules
    mandated by
    the Title II Order, the Commission said, have “large [negative]
    effects on consumers obtaining innovative services,” such as
    zero-rating. 
    Id. ¶ 318.
    Following up its prior observation that
    “smaller edge providers may benefit from tiered pricing, such
    as paid prioritization, as a means of gaining entry,” 
    id. ¶ 133,
    it
    reasoned that removal of the Title II Order’s ban could yield
    “innovative services and business models,” 
    id. ¶ 321.
    Whatever harms might occur absent a ban on paid
    prioritization, the agency estimated them to be “small” and
    “infrequent,” 
    id. ¶ 320,
    and thus outweighed by the costs of the
    Title II Order. As for rules against blocking and throttling, the
    agency states that their costs are “likely small,” though they
    could grow if compliance becomes more onerous. 
    Id. ¶ 322.
                                  119
    The benefits of such rules, however, are “approximately zero,”
    
    id. ¶ 323—a
    point Petitioners do not grapple with, see Mozilla
    Reply Br. 36; cf. IA Br. 25–26 (claiming Title II Order
    promoted edge investment); Part V.A (discussing IA’s claim).
    That is so, in the agency’s view, because the 2018 Order’s
    transparency rules—combined with the deterrent effects of
    “market forces, public opprobrium, and enforcement of the
    consumer protection laws”—can “mitigate potential harms.”
    2018 Order ¶ 323; cf. ¶ 315 (explaining that the Title II Order’s
    transparency rules would “impose significant additional costs”
    without “additional benefits”). In sum, a “light-touch”
    approach can in the Commission’s judgment secure Internet
    openness and encourage innovation at lower cost than the Title
    II Order, while yielding unique benefits.
    The Commission’s reasoning rehearsed above is not
    plagued by “serious flaw[s]” that so “undermin[e]” its cost-
    benefit analysis as to render the rule “unreasonable.” Home
    
    Builders, 682 F.3d at 1040
    . We therefore reject Petitioners’
    objections on this front.
    H. Data Roaming Rates
    Petitioner NTCH, Inc. (NTCH) argues that the 2018 Order
    failed to address data roaming rates charged by broadband
    providers. According to NTCH, the Commission unlawfully
    disregarded its comments that stressed the need for Title II
    regulation given the allegedly high data roaming rates. But the
    Commission’s 2018 Order classified mobile broadband—of
    which data roaming is a service—as an information service,
    thus making Title II regulation inapplicable. Thus, the
    Commission’s failure to respond to NTCH’s comments
    regarding data roaming is “significant only insofar as it
    demonstrates that the agency’s decision was not based on a
    consideration of the relevant factors.” Texas Mun. Power
    120
    Agency v. EPA, 
    89 F.3d 858
    , 876 (D.C. Cir. 1996) (quoting
    Thompson v. Clark, 
    741 F.2d 401
    , 409 (D.C. Cir. 1984)).
    NTCH offers no reason why the value of regulating data
    roaming rates under Title II would be important enough to
    affect the agency’s decision to reclassify mobile broadband.
    Given that we conclude, infra Part II, that the classification of
    mobile broadband as an information service was reasonable, the
    Commission had no obligation to consider NTCH’s comments
    urging for Title II regulations for mobile broadband providers’
    data roaming agreements.
    I.   Procedural Challenges
    Before the Commissioner, Petitioner National Hispanic
    Media Coalition (“NHMC”) moved to include in the record
    and for the Commission to consider informal consumer
    complaints filed under the previous rules. NHMC had itself
    obtained these documents from the Commission under the
    Freedom of Information Act. NHMC argues that these
    materials are relevant because the May 2017 Notice of
    Proposed Rulemaking specifically requested information about
    the impact of Title II classification on consumers and ISPs’
    conduct. The Commission denied the motion, finding that it
    was “exceedingly unlikely” that those complaints raised any
    issue that was not already identified in “the voluminous record
    in this proceeding.” 2018 Order ¶ 342. Given the broad
    discretion afforded to the Commission to “make ad hoc
    procedural rulings in specific instances,” FCC. v. Schreiber,
    
    381 U.S. 279
    , 289 (1965); see also 47 U.S.C. § 154(j) (“The
    Commission may conduct its proceedings in such manner as
    will best conduce to the proper dispatch of business and to the
    ends of justice.”), we reject NHMC’s challenge.
    On this basis, we also conclude that the Commission did
    not abuse its discretion in denying INCOMPAS’s motion to
    121
    “modify the protective orders” in four recent proceedings
    reviewing corporate transactions involving Internet service
    providers “to allow confidential materials submitted in those
    dockets to be used in this proceeding.” 2018 Order ¶ 324. The
    Commission declined to do so, noting that the protective orders
    assured the parties involved that the confidential materials
    would not be used in future proceedings. 
    Id. ¶ 331.
    Moreover,
    the Commission explained that gathering this requested
    information would be “costly” and “administratively difficult”
    yet would only provide an “incomplete picture of industry
    practices” and would not “meaningfully improve the
    Commission’s analysis.” 
    Id. ¶ 330,
    329. Indeed, the
    Commission is “fully capable of determining which documents
    are relevant to its decision-making.” SBC Commc’ns Inc. v.
    FCC., 
    56 F.3d 1484
    , 1496 (D.C. Cir. 1995). Thus, in the
    absence of a more specific showing of relevance or prejudice
    arising from the agency’s failure to consider, the Commission
    is not “bound to review every document.” 
    Id. We thus
    reject
    INCOMPAS’s challenge.
    VI.    Preemption
    We vacate the portion of the 2018 Order that expressly
    preempts “any state or local requirements that are inconsistent
    with [its] deregulatory approach.” 2018 Order ¶ 194; see 
    id. ¶¶ 194–204
    (“Preemption Directive”). The Commission
    ignored binding precedent by failing to ground its sweeping
    Preemption Directive—which goes far beyond conflict
    preemption—in a lawful source of statutory authority. That
    failure is fatal.
    The relevant portion of the Order provides that “regulation
    of broadband Internet access service should be governed
    principally by a uniform set of federal regulations,” and not “by
    a patchwork that includes separate state and local
    122
    requirements.” 2018 Order ¶ 194. In service of that goal, the
    2018 Order expressly “preempt[s] any state or local measures
    that would effectively impose rules or requirements that we
    have repealed or decided to refrain from imposing in this order
    or that would impose more stringent requirements for any
    aspect of broadband service that we address in this order.” 
    Id. ¶ 195.
    In other words, the Preemption Directive invalidates all
    state and local laws that the Commission deems to “interfere
    with federal regulatory objectives” or that involve “any aspect
    of broadband service * * * address[ed]” in the Order. 
    Id. ¶¶ 195–196.
    The Preemption Directive conveys more than a mere intent
    for the agency to preempt state laws in the future if they
    conflict with the 2018 Order. As the Commission confirmed
    at oral argument, it is not just a “heads up that ordinary conflict
    preemption principles are going to apply.” Oral Arg. Tr. 171.
    The Order was meant to have independent and far-reaching
    preemptive effect from the moment it issued. Id.; see also 2018
    Order ¶¶ 195–197. And the Commission meant for that
    preemptive effect to wipe out a broader array of state and local
    laws than traditional conflict preemption principles would
    allow. Oral Arg. Tr. 171 (Q: “It’s broader than ordinary
    conflict preemption?” A: “That’s correct.”).
    The Governmental Petitioners challenge the Preemption
    Directive on the ground that it exceeds the Commission’s
    statutory authority. They are right.
    A. Express and Ancillary Authority
    “The [Commission], like other federal agencies, literally
    has no power to act unless and until Congress confers power
    upon it.” American Library Ass’n v. FCC., 
    406 F.3d 689
    , 698
    (D.C. Cir. 2005) (formatting modified). That means that the
    Commission “may preempt state law only when and if it is
    123
    acting within the scope of its congressionally delegated
    authority.” Louisiana Pub. Serv. Comm’n v. FCC, 
    476 U.S. 355
    , 374 (1986) (“Louisiana PSC”); see also 
    Comcast, 600 F.3d at 654
    (applying the “axiomatic principle that
    administrative agencies may act only pursuant to authority
    delegated to them by Congress”) (formatting modified). Of
    course, if a federal law expressly confers upon the agency the
    authority to preempt, that legislative delegation creates and
    defines the agency’s power to displace state laws. FERC v.
    Mississippi, 
    456 U.S. 742
    , 759 (1982) (“Insofar as [the statute]
    authorizes FERC to exempt qualified power facilities from
    ‘State laws and regulations,’ it does nothing more than pre-
    empt conflicting state enactments in the traditional way.”); cf.
    Wyeth v. Levine, 
    555 U.S. 555
    , 576–577 & n.9 (2009)
    (declining to “defer[] to an agency’s conclusion that state law
    is pre-empted” where “Congress ha[d] not authorized [the
    agency] to pre-empt state law directly,” and collecting
    examples of statutes in which Congress had done so) (emphasis
    omitted).
    By the same token, in any area where the Commission
    lacks the authority to regulate, it equally lacks the power to
    preempt state law. After all, an “agency may not confer power
    on itself,” and “[t]o permit an agency to expand its power in
    the face of a congressional limitation on its jurisdiction would
    be to grant to the agency power to override Congress.”
    Louisiana PSC, 476 U.S at 374–375; see Public Serv. Comm’n
    of Md. v. FCC, 
    909 F.2d 1510
    , 1515 n.6 (D.C. Cir. 1990)
    (“Maryland PSC”) (recognizing that the Commission may not
    “regulate (let alone preempt regulation of) any service that does
    not fall within its * * * jurisdiction”). In other words, even “the
    allowance of ‘wide latitude’ in the exercise of delegated
    powers is not the equivalent of untrammeled freedom to
    regulate activities over which the statute fails to confer, or
    explicitly denies, Commission authority.” National Ass’n of
    124
    Regulatory Util. Comm’rs v. FCC, 
    533 F.2d 601
    , 618 (D.C.
    Cir. 1976) (“NARUC II”) (quoting United States v. Midwest
    Video Corp., 
    406 U.S. 649
    , 676 (1972) (Burger, C.J.,
    concurring)).
    The Commission’s regulatory jurisdiction falls into two
    categories. The first is the “express and expansive authority”
    Congress delegated in the Act to regulate certain technologies.
    
    Comcast, 600 F.3d at 645
    . This authority extends to “common
    carrier services, including landline telephony (Title II of the
    Act); radio transmissions, including broadcast television,
    radio, and cellular telephony (Title III); and ‘cable services,’
    including cable television (Title VI).” 
    Id. (internal citations
    omitted).
    The second is the Commission’s “ancillary authority.”
    
    Comcast, 600 F.3d at 650
    . The Commission’s ancillary
    authority derives from a provision within Title I of the Act that
    empowers the Commission to “perform any and all acts, make
    such rules and regulations, and issue such orders, not
    inconsistent with this chapter, as may be necessary in the
    execution of its functions.” 47 U.S.C. § 154(i). That provision
    enables the Commission to regulate on matters “reasonably
    ancillary to the * * * effective performance of its statutorily
    mandated responsibilities.” American 
    Library, 406 F.3d at 692
    .
    For the Preemption Directive to stand, then, the
    Commission must have had express or ancillary authority to
    issue it. It had neither.
    The Preemption Directive could not possibly be an
    exercise of the Commission’s express statutory authority. By
    reclassifying broadband as an information service, the
    Commission placed broadband outside of its Title II
    jurisdiction. And broadband is not a “radio transmission”
    125
    under Title III or a “cable service” under Title VI. So the
    Commission’s express authority under Titles III or VI does not
    come into play either. Nor did Congress statutorily grant the
    Commission freestanding preemption authority to displace
    state laws even in areas in which it does not otherwise have
    regulatory power.
    Neither can the Commission house the Preemption
    Directive in its ancillary authority under Title I. “Title I is not
    an independent source of regulatory authority.” People of State
    of Cal. v. FCC, 
    905 F.2d 1217
    , 1240 n.35 (9th Cir. 1990)
    (citing United States v. Southwestern Cable Co., 
    392 U.S. 157
    ,
    178 (1968)). As a result, ancillary jurisdiction exists only when
    “(1) the Commission’s general jurisdictional grant under Title
    I of the Communications Act covers the regulated subject and
    (2) the regulations are reasonably ancillary to the
    Commission’s effective performance of its statutorily
    mandated responsibilities.” American 
    Library, 406 F.3d at 691
    –692 (formatting modified).
    Under binding circuit precedent, those “statutorily
    mandated responsibilities” must themselves be dictated by
    Title II, III, or VI of the Act—none of which apply since the
    Commission took broadband out of Title II. See 
    Comcast, 600 F.3d at 654
    (“[I]t is Title II, III, or VI to which the authority
    must ultimately be ancillary.”); see also, e.g., National Ass’n
    of Regulatory Util. Comm’rs v. FCC, 
    880 F.2d 422
    , 429–431
    (D.C. Cir. 1989) (“NARUC-III”) (upholding the Commission’s
    preemption of state “inside wiring” regulation as ancillary to
    its Title II authority over interstate telephone services);
    Computer & Commc’ns Indus. Ass’n v. FCC, 
    693 F.2d 198
    ,
    207, 218 (D.C. Cir. 1982) (upholding the Commission’s
    preemption of certain state tariff regulations as ancillary to its
    Title II ratemaking power).
    126
    The Commission seemingly agrees because nowhere in
    the 2018 Order or its briefing does it claim ancillary authority
    for the Preemption Directive. See 2018 Order ¶¶ 194–204;
    Commission Br. 121 (acknowledging that the Order “makes no
    mention of either Title II or ancillary authority”) (emphasis in
    original).
    B. The Commission’s Asserted Sources of Authority
    With express and ancillary preemption authority off the
    table, the Commission was explicit that it was grounding its
    Preemption Directive in (i) the “impossibility exception” to
    state jurisdiction, and (ii) the “federal policy of nonregulation
    for information services.” 2018 Order ¶¶ 198, 202. Neither
    theory holds up.
    1.   Impossibility Exception
    Section 152 of the Communications Act provides, as
    relevant here, that “nothing in this chapter shall be construed
    to apply or to give the Commission jurisdiction with respect to
    * * * regulations for or in connection with intrastate
    communication service by wire or radio of any carrier.” 47
    U.S.C. § 152(b). That provision divides regulatory authority
    “into two separate components: interstate communications,
    which can be regulated by the [Commission]; and intrastate
    communications, which cannot.” Maryland 
    PSC, 909 F.2d at 1514
    (internal quotation marks omitted). In doing so, Section
    152 “severely circumscribes” the Commission’s “power by
    ‘fencing off from [its] reach or regulation intrastate matters,’”
    including “matters in connection with intrastate service.”
    Public Util. Comm’n of Tx. v. FCC, 
    886 F.2d 1325
    , 1331 (D.C.
    Cir. 1989) (quoting Louisiana 
    PSC, 476 U.S. at 370
    )
    (formatting modified).
    127
    Needless to say, “the realities of technology and
    economics” sometimes obscure the statute’s “parceling of
    responsibility.” Louisiana 
    PSC, 476 U.S. at 360
    . The
    “impossibility exception” is a judicial gloss on Section 152 that
    attempts to help navigate the Act’s sometimes complicated
    division of regulatory power.
    The impossibility exception started with the Supreme
    Court’s decision in Louisiana PSC. There, the Supreme Court
    rejected the Commission’s attempt to preempt States from
    applying their own depreciation rules in setting intrastate
    telephone rates. The Commission had argued that the state
    rules impermissibly “frustrate[d]” the “federal policy of
    increasing competition in the industry.” Louisiana 
    PSC, 476 U.S. at 368
    , 369. The Supreme Court rejected that argument
    as driving outside the Commission’s statutory lane. 
    Id. at 369–
    370. But the Court also candidly acknowledged that
    “jurisdictional tensions may arise as a result of the fact that
    interstate and intrastate [telephone] service are provided by a
    single integrated system.” 
    Id. at 375.
    Because “Section 152(b)
    “constitutes * * * a congressional denial of power to the
    [Commission],” the Supreme Court explained, “we simply
    cannot accept an argument that the [Commission] may
    nevertheless take action which it thinks will best effectuate a
    federal policy.” 
    Id. at 374;
    see also 
    id. at 370
    (“We might be
    inclined to accept [the Commission’s argument] were it not for
    the express jurisdictional limitations on [Commission] power
    contained in § 152(b).”); 
    id. at 376
    (“As we so often admonish,
    only Congress can rewrite this statute.”).
    Having rejected the Commission’s preemption effort, the
    Supreme Court added a footnote distinguishing cases where
    lower courts had found it “not possible to separate the interstate
    and the intrastate components of the asserted [Commission]
    regulation.” Louisiana 
    PSC, 476 U.S. at 375
    n.4 (citing North
    128
    Carolina Utils. Comm’n v. FCC, 
    537 F.2d 787
    (4th Cir. 1976),
    and North Carolina Utils. Comm’n v. FCC, 
    552 F.3d 1036
    (4th
    Cir. 1977)). And with that, the impossibility exception was
    born.
    This court has applied the impossibility exception just
    once, in Maryland 
    PSC, 909 F.2d at 1515
    . Drawing from
    Louisiana PSC, we held that the express denial of Commission
    authority codified in Section 152(b) does not apply where (i)
    “the matter to be regulated has both interstate and intrastate
    aspects”; (ii) “preemption is necessary to protect a valid federal
    regulatory objective”; and (iii) “state regulation would negate
    the exercise by the [Commission] of its own lawful authority
    because regulation of the interstate aspects of the matter cannot
    be ‘unbundled’ from regulation of the intrastate aspects.”
    Maryland 
    PSC, 909 F.2d at 1515
    (formatting modified).
    But Maryland PSC and the impossibility exception are of
    no help to the Commission. In applying the impossibility
    exception, Maryland PSC did not vitiate the need for either an
    express delegation of regulatory authority or ancillary
    authority. All the impossibility exception does is help police
    the line between those communications matters falling under
    the Commission’s authority (Section 152(a)) and those
    remaining within the States’ wheelhouse (Section 152(b)).
    Specifically, if the matter involves interstate communications
    or a mix of state and federal matters and it falls within the
    impossibility exception, then the Commission may regulate to
    the extent of its statutory authority. See Louisiana 
    PSC, 476 U.S. at 374
    ; Maryland 
    PSC, 909 F.2d at 1513
    –1515. If not, the
    matter falls within the States’ jurisdiction. Maryland 
    PSC, 909 F.2d at 1514
    . In other words, the impossibility exception
    presupposes the existence of statutory authority to regulate; it
    does not serve as a substitute for that necessary delegation of
    power from Congress.
    129
    Nor can 47 U.S.C. § 152—the statutory hook for the
    impossibility exception—by itself provide a source of
    preemption authority. We have rejected that precise argument
    before. In NARUC 
    II, supra
    , the Commission asserted that
    Section 152 authorized it to preempt state regulation of two-
    way communications over cable systems’ leased access
    channels.3 That argument failed, we explained, because “each
    and every assertion of jurisdiction over cable television must
    be independently justified as reasonably ancillary to the
    Commission’s power over broadcasting.” NARUC 
    II, 533 F.2d at 612
    . So the Commission cannot bootstrap itself into
    preemption authority just by pointing to Section 152. It has to
    identify an independent source of regulatory authority to which
    the preemption action would be “reasonably ancillary.” 
    Id. (explaining that
    prior Supreme Court opinions “compel[] the
    conclusion that cable jurisdiction, which [the Court has]
    located primarily in § 152(a), is really incidental to, and
    contingent upon, specifically delegated powers under the Act”)
    (citing Southwestern 
    Cable, 392 U.S. at 178
    ; and Midwest
    
    Video, 406 U.S. at 662
    –663); see also 
    Comcast, 600 F.3d at 654
    (“[I]t is Titles II, III, and VI that do the delegating.”);
    People of State of 
    Cal., 905 F.2d at 1240
    n.35 (recognizing that
    “Title I is not a source of regulatory authority”).
    All that is a long way of saying that, contrary to the
    Commission’s argument, the “impossibility exception” does
    not create preemption authority out of thin air.
    3
    This was before the Cable Communications Policy Act of
    1984, Pub. L. No. 98–549, 98 Stat. 2279, established a national
    policy governing cable television.
    130
    2.   Federal Policy of Nonregulation
    What the Commission calls the “federal policy of
    nonregulation for information services,” Commission Br. 123,
    cannot sustain the Preemption Directive either.
    First, as a matter of both basic agency law and federalism,
    the power to preempt the States’ laws must be conferred by
    Congress. It cannot be a mere byproduct of self-made agency
    policy. Doubly so here where preemption treads into an area—
    State regulation of intrastate communications—over which
    Congress expressly “deni[ed]” the Commission regulatory
    authority, Louisiana 
    PSC, 476 U.S. at 374
    .
    Presumably recognizing as much, the Commission
    attempts to house its preemption authority in 47 U.S.C.
    § 230(b)(2). That provision says that “the policy of the United
    States [is] * * * to preserve the vibrant and competitive free
    market that presently exists for the Internet and other
    interactive computer services, unfettered by Federal or State
    regulation.” 
    Id. No dice.
    As the Commission has itself acknowledged, this
    is a “statement[] of policy,” not a delegation of regulatory
    authority. 
    Comcast, 600 F.3d at 652
    (“The Commission
    acknowledges that section 230(b) * * * [contains] statements
    of policy that themselves delegate no regulatory authority.”);
    see also 2018 Order ¶ 284 (characterizing Section 230(b) as
    merely “hortatory, directing the Commission to adhere to the
    policies specified in that provision when otherwise exercising
    our authority”) (emphasis added); 
    id. ¶ 267
    (“We also are not
    persuaded that section 230 of the Communications Act is a
    grant of regulatory authority.”). To put it even more simply,
    “[p]olicy statements are just that—statements of policy. They
    are not delegations of regulatory authority.” 
    Comcast, 600 F.3d at 654
    .
    131
    Nor do policy statements convey “statutorily mandated
    responsibilities” that the Commission may use to support an
    exercise of ancillary authority. 
    Comcast, 600 F.3d at 644
    , 654
    (“Although policy statements may illuminate [delegated]
    authority, it is Title II, III, or VI to which the authority must
    ultimately be ancillary.”); see also Motion Picture Ass’n of
    America v. FCC, 
    309 F.3d 796
    , 806–807 (D.C. Cir. 2002)
    (rejecting the Commission’s “argument that [its] video
    description rules are obviously a valid communications policy
    goal and in the public interest” because the Commission “can
    point to no statutory provision that gives the agency authority”
    to issue those rules).
    Second, the Commission points to 47 U.S.C. § 153(51),
    which defines “telecommunications carrier,” and provides that
    “[a] telecommunications carrier shall be treated as a common
    carrier under this chapter only to the extent that it is engaged
    in providing telecommunications services.”
    That does not work either. Section 153(51) is a
    definitional provision in Title I, and so is “not an independent
    source of regulatory authority.” People of State of 
    Cal., 905 F.2d at 1240
    n.35. Quite the opposite. As the parties agree,
    that provision is a limitation on the Commission’s authority.
    See Governmental Pet’rs’ Br. 43 (characterizing it as
    “limit[ing] only the agency’s authority”); Commission Br. 128
    n.38 (characterizing it as “a substantive limitation on
    government authority”) (citing 
    Verizon, 740 F.3d at 650
    ).
    It also would make no sense for Congress to bury the
    enormously far-reaching and consequential authority to
    override every single State’s statutorily conferred power to
    regulate intrastate communications deep within a list of fifty-
    nine definitions in a non-regulatory portion of the statute, and
    132
    then articulate the relevant definition as a restriction of the
    Commission’s power.
    Third, the Commission points to 47 U.S.C. § 160(e). That
    provision says that “[a] State commission may not continue to
    apply or enforce any provision of [the Act] that the
    Commission has determined to forbear from applying under
    subsection (a).” Subsection (a), in turn, gives the Commission
    some flexibility to forbear from regulating technologies
    classified under Title II. 
    Id. § 160(a).
    That Title II provision has no work to do here because the
    2018 Order took broadband out of Title II. So the Commission
    is not “forbear[ing] from applying any provision” of the Act to
    a Title-II technology. 47 U.S.C. § 160(e). On top of that,
    Section 160(e)—as a part of Title I—does not itself delegate
    any preemption authority to the Commission. People of State
    of 
    Cal., 905 F.2d at 1240
    n.35.
    The best the Commission can do is try to argue by analogy.
    It claims that it would be “incongruous” not to extend
    preemption authority under Title I, given that Section 160(e)
    prohibits States from regulating a service classified under Title
    II in instances of federal forbearance. Commission Br. 115–
    116.
    That is a complaint that the Commission is free to take up
    with Congress. Until then, preemption authority depends on
    the Commission identifying an applicable statutory delegation
    of regulatory authority, and Section 160(e) does not provide it.
    The Commission’s “own bruised sense of symmetry” is
    irrelevant. NARUC 
    II, 533 F.2d at 614
    .
    Anyhow, there is no such incongruity. By expressly
    requiring that communications services under Title II be
    regulated as common carriers, the Federal Communications
    133
    Act grants the Commission broad authority over services
    classified under Title II, unlike those classified under Title I.
    See 47 U.S.C. § 153(51); Brand 
    X, 545 U.S. at 976
    ; 
    Verizon, 740 F.3d at 630
    ; 
    Comcast, 600 F.3d at 645
    . Which is also why
    the Act carves out more space for federal objectives to displace
    those of the States in the Title II context. See 47 U.S.C.
    § 253(a), (d) (expressly authorizing the Commission to
    preempt state or local regulations that “may prohibit or have
    the effect of prohibiting the ability of any entity to provide any
    interstate or intrastate telecommunications service[]”).
    The dissenting opinion calls this “a complete non
    sequitur,” arguing that it “assumes an asymmetry in
    preemption implications” in which preemption protects
    “heavy-handed regulation” more than “light-touch regulation.”
    Dissenting Op. 10 (emphasis omitted).        Not so.      The
    Commission could choose to enact heavier or lighter regulation
    under Title II by exercising less or more of its Title II
    forbearance authority, with symmetrical “preemption
    implications,” 
    id. It just
    cannot completely disavow Title II
    with one hand while still clinging to Title II forbearance
    authority with the other.
    3.   Case Precedent
    Governing precedent nails the coffin shut on the
    Preemption Directive.
    In Louisiana PSC, the Supreme Court squarely rejected
    the Commission’s argument that it “is entitled to pre-empt
    inconsistent state regulation” just because it “frustrates federal
    
    policy.” 476 U.S. at 368
    . In doing so, the Court was explicit
    that, if the Commission cannot tether a rule of preemption to a
    relevant source of statutory authority, courts “simply cannot
    accept [the] argument that the [Commission] may nevertheless
    134
    take action which it thinks will best effectuate a federal policy.”
    
    Id. at 374.
    That fits this case to a T.
    Likewise, in City of New York v. FCC, on which the
    Commission and their amici heavily rely, the Supreme Court
    repeated that “an agency literally has no power to act, let alone
    pre-empt the validly enacted legislation of a sovereign State,
    unless and until Congress confers power upon it.” 
    486 U.S. 57
    ,
    66 (1988). The Court then added that “the best way of
    determining whether Congress intended the regulations of an
    administrative agency to displace state law is to examine the
    nature and scope of the authority granted by Congress to the
    agency.” 
    Id. (quoting Louisiana
    PSC, 476 U.S. at 374
    ).
    Needless to say, no such examination can occur if there is no
    legislative grant of authority against which to evaluate the
    preemptive rule, and certainly not when, as here, Congress
    expressly withheld regulatory authority over the matter. 47
    U.S.C. § 152(b).
    To be sure, in City of New York, the Supreme Court
    referenced the “background of federal pre-emption on this
    particular issue” as weighing in favor of 
    preemption. 486 U.S. at 66
    –67. But the Court said so only after the threshold
    requirement of statutory authority had been satisfied.
    Specifically, the Court “conclude[d] that the Commission is
    authorized under § 624(e) of the Cable Act”—authority
    expressly delegated in Title VI—“to pre-empt technical
    standards imposed by state and local authorities.” 
    Id. at 70
    n.6.
    That statutory authority is the fatal gap in the Commission’s
    argument here.
    Not only is the Commission lacking in its own statutory
    authority to preempt, but its effort to kick the States out of
    intrastate broadband regulation also overlooks the
    Communications Act’s vision of dual federal-state authority
    135
    and cooperation in this area specifically. See, e.g., 47 U.S.C.
    § 1301(4) (“The Federal Government should also recognize
    and encourage complementary State efforts to improve the
    quality and usefulness of broadband data.”); 
    id. § 1302(a)
    (referring to “[t]he Commission and each State Commission
    with regulatory jurisdiction” in a chapter titled “Broadband”);
    
    id. § 1304
    (“[e]ncouraging State initiatives to improve
    broadband”); cf. 
    id. § 253(b)
    (“Nothing in this section shall
    affect the ability of a State to impose * * * requirements
    necessary to * * * protect the public safety and welfare, * * *
    and safeguard the rights of consumers.”); 
    id. § 254(i)
    (“The
    Commission and the States should ensure that universal service
    is available at rates that are just, reasonable, and affordable.”).
    Even the 2018 Order itself acknowledges the States’ central
    role in “policing such matters as fraud, taxation, and general
    commercial dealings,” 2018 Order ¶ 196, “remedying
    violations of a wide variety of general state laws,” 
    id. ¶ 196
    n.732, and “enforcing fair business practices,” 
    id. ¶ 196
    —
    categories to which broadband regulation is inextricably
    connected.
    C. Conflict Preemption
    Finally, the Commission argues that we should leave the
    Preemption Directive undisturbed because principles of
    conflict preemption would lead to the same result. See
    Commission Br. 130–133.
    Any intuitive appeal this argument might have offered
    evaporated at oral argument when the Commission confirmed
    what the Preemption Directive’s plain language bespeaks: It
    sweeps “broader than ordinary conflict preemption.” Oral Arg.
    Tr. 171; see 2018 Order ¶ 195 (preempting “any state or local
    measures that would effectively impose rules or requirements
    that we have repealed or decided to refrain from imposing in
    136
    this order or that would impose more stringent requirements for
    any aspect of broadband service that we address in this order”).
    The necessary consequence of this position is that ordinary
    conflict preemption principles cannot salvage the Preemption
    Directive. Cf. City of New 
    York, 486 U.S. at 65
    –66 (“Since the
    Commission has explicitly stated its intent to * * * pre-empt
    state and local regulation, this case does not turn on whether
    there is an actual conflict between federal and state law.”).
    Beyond that, the Commission’s conflict-preemption
    argument tries to force a square peg into a round hole. Conflict
    preemption applies to “state law that under the circumstances
    of the particular case stands as an obstacle to the
    accomplishment and execution of the full purposes and
    objectives of Congress—whether that ‘obstacle’ goes by the
    name of conflicting; contrary to; repugnance; difference;
    irreconcilability; inconsistency; violation; curtailment;
    interference, or the like.” Geier v. American Honda Motor Co.,
    Inc., 
    529 U.S. 861
    , 873 (2000) (formatting modified). We have
    long recognized that “whether a state regulation unavoidably
    conflicts with national interests is an issue incapable of
    resolution in the abstract,” let alone in gross. Alascom, Inc. v.
    FCC, 
    727 F.2d 1212
    , 1220 (D.C. Cir. 1984); see also Time
    Warner Entertainment Co. v. FCC, 
    56 F.3d 151
    , 195 (D.C. Cir.
    1995) (“[T]he issue of whether the 1992 Cable Act preempts
    state negative option billing laws involves a host of factual
    questions peculiar to the state law at issue in each case.”).
    Because a conflict-preemption analysis “involves fact-
    intensive inquiries,” it “mandates deferral of review until an
    actual preemption of a specific state regulation occurs.”
    
    Alascom, 727 F.2d at 1220
    . Without the facts of any alleged
    conflict before us, we cannot begin to make a conflict-
    preemption assessment in this case, let alone a categorical
    determination that any and all forms of state regulation of
    137
    intrastate broadband would inevitably conflict with the 2018
    Order.
    The dissenting opinion, for its part, invents a brand new
    source of preemptive power that not even the Commission
    claims. Dissenting Op. 5–6, 9. The power to preempt is said
    to derive from Chevron deference and the “definitional
    ambiguity” that permits the Commission to classify broadband
    under Title I. 
    Id. at 9;
    see Chevron, 
    467 U.S. 837
    . In the
    dissenting opinion’s view, that interpretive ambiguity alone
    spawns a power to preempt with all the might of an express
    statutory grant of authority, and is singlehandedly capable of
    investing the Commission with the very state-law-displacing
    authority that the statute withheld in Section 152(b). That
    theory fails for four reasons.
    First, this asserted legal basis for preemption is not before
    us. The 2018 Order offered two, and only two, sources of
    authority for the Preemption Directive: the impossibility
    exception and the federal policy of nonregulation for
    information services. 2018 Order ¶¶ 197–204 (discussing
    these sources under the heading “Legal Authority”). It did not
    advance Chevron Step Two as a source of preemption
    authority, so it cannot do so here for the first time. See
    
    Chenery, 318 U.S. at 87
    (“The grounds upon which an
    administrative order must be judged are those upon which the
    record discloses that its action was based.”); Clean Air
    Council v. Pruitt, 
    862 F.3d 1
    , 4, 9 (D.C. Cir. 2017) (per curiam)
    (holding that an agency could not invoke on appeal a source of
    authority for its action that it “did not rely on” when it acted);
    Business Roundtable v. SEC, 
    905 F.2d 406
    , 407–408, 417
    (D.C. Cir. 1990) (holding that an agency’s regulation exceeded
    its authority under the statutory provisions it invoked, and
    under Chenery “we cannot supply grounds to sustain the
    regulations that were not invoked by the [agency] below”).
    138
    The Commission’s brief here hewed to the 2018 Order,
    advancing the same “two independent bases of authority[,]”
    plus “ordinary principles of conflict preemption.”
    Commisssion Br. 116–133 (asserting these bases under the
    heading “The Order’s Preemption Of Inconsistent State And
    Local Regulation Is Lawful”). Once again, the dissenting
    opinion’s Chevron Step Two theory is not there. So it is
    forfeited. See In re U.S. Office of Personnel Mgmt. Data Sec.
    Breach Litig., 
    928 F.3d 42
    , 71 (D.C. Cir. 2019) (“And
    KeyPoint has not raised a preemption argument in this court,
    so any argument to that effect is forfeited for purposes of this
    appeal.”); United States v. Gewin, 
    759 F.3d 72
    , 87 n.2 (D.C.
    Cir. 2014) (“Gewin * * * forfeited that argument, however, by
    failing to discuss it in his briefing.”). Of course, the
    Commission alluded to its Chevron Step Two interpretation in
    explaining its policy reasons for desiring categorical
    preemption. See 2018 Order ¶ 194; Commission Br. 115. But
    nowhere does it argue what the dissenting opinion does: that
    Chevron interpretive ambiguity provides an affirmative source
    of legal authority to preempt state laws.
    Second, the dissenting opinion fails to explain how the
    Commission’s interpretive authority under Chevron to classify
    broadband as a Title I information service could do away with
    the sine qua non for agency preemption: a congressional
    delegation of authority either to preempt or to regulate.
    Congress expressly “fenc[ed] off from [the Commission’s]
    reach or regulation intrastate matters, * * * including matters
    in connection with intrastate service.” Louisiana PSC, 
    476 U.S. 370
    (internal quotation marks omitted). It is also
    Congress that chose to house affirmative regulatory authority
    in Titles II, III, and VI, and not in Title I. And it is Congress
    to which the Constitution assigns the power to set the metes
    and bounds of agency authority, especially when agency
    authority would otherwise tramp on the power of States to act
    139
    within their own borders. So to work here, the agency’s
    interpretive authority would have to trump Congress’s
    calibrated assignment of regulatory authority in the
    Communications Act.
    But that cannot be right. No matter how desirous of
    protecting their policy judgments, agency officials cannot
    invest themselves with power that Congress has not conferred.
    Louisiana 
    PSC, 476 U.S. at 374
    ; American 
    Library, 406 F.3d at 698
    . And nothing in Chevron rewrites or erases plain
    statutory text. See 
    Chevron, 467 U.S. at 842
    –843 (“First,
    always, is the question whether Congress has directly spoken
    to the precise question at issue. If the intent of Congress is
    clear, that is the end of the matter; for the court, as well as the
    agency, must give effect to the unambiguously expressed intent
    of Congress.”).
    The dissenting opinion invokes two cases discussing
    implied preemption arising from different agencies’ decisions
    to forgo regulation under different statutory schemes. See
    Dissenting Op. 14–15. It first cites Arkansas Electric
    Cooperative Corp. v. Arkansas Public Service Commission, in
    which the Supreme Court observed that “a federal decision to
    forgo regulation in a given area may imply an authoritative
    federal determination that the area is best left unregulated.”
    
    461 U.S. 375
    , 384 (1983) (formatting modified). The Court
    went on to conclude that the relevant statute did not in fact
    imply such a determination, and so the state regulation at issue
    was not preempted. 
    Id. At best,
    Arkansas Electric sets up one version of the
    question. But it gets the dissent no closer to its preferred
    answer: that here, Congress delegated to the Commission the
    authority to give sweeping preemptive effect to whatever
    140
    policy determination underlay its Chevron Step Two
    interpretation of “offer,” Dissenting Op. 5.
    In the second case, Ray v. Atlantic Richfield Co., the
    Supreme Court described the “pre-emptive impact” implied by
    the “failure of federal officials affirmatively to exercise their
    full authority” under a statute that the Court had already
    recognized as delegating regulatory power to the agency. 
    435 U.S. 151
    , 174, 177–178 (1978) (formatting modified) (“We
    begin with the premise that the Secretary has the authority to
    establish ‘vessel size and speed limitations.’”) (cited at
    Dissenting Op. 14–15).
    Those cases do nothing to empower the Commission to
    engage in express preemption in the 2018 Order. See Oral Arg.
    Tr. 171 (Commission: “No, Your Honor, it’s express
    preemption.”). In neither case was the source or existence of
    statutory authority for the agency to preempt state regulation at
    issue. Nor do those cases speak to a statutory scheme in which
    Congress expressly marked out a regulatory role for States that
    the federal agency has attempted to supplant. If Congress
    wanted Title I to vest the Commission with some form of
    Dormant-Commerce-Clause-like power to negate States’
    statutory (and sovereign) authority just by washing its hands of
    its own regulatory authority, Congress could have said so.
    Third, the dissenting opinion’s effort to discern
    Congress’s delegation of preemption authority in Chevron and
    Brand X does not work either. The dissenting opinion
    acknowledges that its theory of Chevron preemption authority
    derives entirely from the “ambiguity in the word ‘offer,’”
    Dissenting Op. 5, a word that is buried in a definitional section
    in a non-regulatory part of the statute, 47 U.S.C. § 153(53).
    To be sure, Chevron and Brand X together confirm that the
    Commission has interpretive “discretion” to classify
    141
    broadband as either an information service or a
    telecommunications service. Brand 
    X, 545 U.S. at 996
    –997;
    see 
    Chevron, 467 U.S. at 860
    –862 (reading a statutory gap as
    indicating a congressional delegation of power to an agency to
    fill it). Congress, in other words, created an interpretive
    statutory fork in the road and gave the Commission the
    authority to choose the path.
    But the Commission’s power to choose one regulatory
    destination or another does not carry with it the option to mix
    and match its favorite parts of both. The dissenting opinion’s
    defense of the Preemption Directive makes the mistake of
    collapsing the distinction between (i) the Commission’s
    authority to make a threshold classification decision, and (ii)
    the authority to issue affirmative and State-displacing legal
    commands within the bounds of the classification scheme the
    Commission has selected (here, Title I). The agency’s power
    to do the former says nothing about its authority to do the latter.
    Chevron, after all, is not a magic wand that invests agencies
    with regulatory power beyond what their authorizing statutes
    provide. Instead, the point of Chevron was simply to draw
    lines between the courts’ and administrative agencies’
    respective roles in interpreting ambiguous statutes. See
    
    Chevron, 467 U.S. at 842
    –844.
    The dissenting opinion’s theory of Chevron preemption,
    in other words, takes the discretion to decide which definition
    best fits a real-world communications service and attempts to
    turn that subsidiary judgment into a license to reorder the entire
    statutory scheme to enforce an overarching “nationwide
    regime” that enforces the policy preference underlying the
    definitional choice. Dissenting Op. 6. Nothing in Chevron
    goes that far. And doing so here would turn every exercise of
    Chevron Step-Two interpretation into a bureaucratic
    blunderbuss capable of demolishing state laws across the
    142
    Nation any time the agency fears that state regulation might
    intrude on its regulatory or deregulatory ethos.
    The Supreme Court has made very clear that Chevron does
    not have that much muscle. Congress, the Court has explained,
    “does not alter the fundamental details of a regulatory scheme,”
    let alone step so heavily on the balance of power between the
    federal government and the States, “in vague terms or ancillary
    provisions—it does not, one might say, hide elephants in
    mouseholes.” Whitman v. American Trucking Ass’ns, 
    531 U.S. 457
    , 468 (2001).
    And that principle is a well-settled limitation on Chevron.
    See, e.g., King v. Burwell, 
    135 S. Ct. 2480
    , 2495 (2015)
    (quoting 
    Whitman, 531 U.S. at 468
    ); Gonzales v. Oregon, 
    546 U.S. 243
    , 267 (2006) (same); see also Natural Res. Def.
    Council v. EPA, 
    661 F.3d 662
    , 664–665 (D.C. Cir. 2011);
    American Chemistry Council v. Johnson, 
    406 F.3d 738
    , 743
    (D.C. Cir. 2005) (“Congress does not generally hide elephants
    in mouseholes, and we think it utterly improbable that
    [Congress intended to authorize the EPA’s interpretation] by
    creating a list of several hundred toxic chemicals.”) (internal
    citation omitted). The mousehole, in short, cannot be the
    wellspring of preemption authority that the Commission needs.
    Doubly so here, where the Supreme Court has specifically held
    that the Commission’s desire to “best effectuate a federal
    policy” must take a back seat to Section 152(b)’s assignment
    of regulatory authority to the States. Louisiana 
    PSC, 476 U.S. at 374
    .
    Anyhow, the argument that the Commission needs to save
    its classification decision from becoming “meaningless,”
    Dissenting Op. 23, still does not work. If the Commission can
    explain how a state practice actually undermines the 2018
    143
    Order, then it can invoke conflict preemption.4 If it cannot
    make that showing, then presumably the two regulations can
    co-exist as the Federal Communications Act envisions, 47
    U.S.C. § 152(b). What matters for present purposes is that, on
    this record, the Commission has made no showing that wiping
    out all “state or local requirements that are inconsistent with
    the [Order’s] federal deregulatory approach” is necessary to
    give its reclassification effect. 2018 Order ¶ 194. And binding
    Supreme Court precedent says that mere worries that a policy
    will be “frustrate[d]” by “jurisdictional tensions” inherent in
    the Federal Communications Act’s division of regulatory
    power between the federal government and the States does not
    create preemption authority. Louisiana 
    PSC, 476 U.S. at 370
    ,
    375.
    For those same reasons, the dissenting opinion’s concern
    that “the most draconian state policy trumps all else,”
    Dissenting Op. 1, is a straw man. In vacating the Preemption
    Directive, we do not consider whether the remaining portions
    of the 2018 Order have preemptive effect under principles of
    conflict preemption or any other implied-preemption doctrine.
    Much like the dissenting opinion’s effort to wring out of
    Arkansas Electric and Ray a source of preemption authority,
    the dissenting opinion’s suggestion that the court’s decision
    leaves no room for implied preemption confuses (i) the scope
    of the Commission’s authority to expressly preempt, with
    (ii) the (potential) implied preemptive effect of the regulatory
    choices the Commission makes that are within its authority.
    4
    See Williamson v. Mazda Motor of America, Inc., 
    562 U.S. 323
    , 330 (2011) (conflict preemption wipes out “state law that stands
    as an obstacle to the accomplishment and execution of the [federal
    law’s] full purposes and objectives”) (internal quotation marks
    omitted).
    144
    Fourth, the dissenting opinion’s reliance on the Eighth
    Circuit’s opinion in Minnesota Public Utilities Commission v.
    FCC (“Minnesota PUC”), 
    483 F.3d 570
    (8th Cir. 2007), is
    misplaced. That opinion enumerated the discrete questions it
    purported to answer—none of which was whether Congress
    delegated to the Commission the authority to preempt. 
    Id. at 577.
        The Eighth Circuit decided only whether the
    Commission’s order was “arbitrary and capricious because it
    * * * determined it was impractical or impossible to separate
    the intrastate components of VoIP service from its interstate
    components,” or because it “determined state regulation of
    VoIP service conflicts with federal regulatory policies.” 
    Id. This set
    of inquiries does not resolve the purely legal question
    of the source of the Commission’s asserted preemption
    authority here.
    The dissenting opinion concedes that point. Dissenting
    Op. 18 (acknowledging that “legal authority * * * was not
    formally at issue”). The dissent nevertheless suggests that the
    Eighth Circuit’s decision upholding as neither arbitrary nor
    capricious the Commission’s finding of “the facts essential for
    application of the impossibility exception” implies that, had
    that court actually considered the question whether the
    Commission had the legal authority to preempt, it would have
    disagreed with us. 
    Id. at 17–18.
    But the Eighth Circuit’s
    silence on that question leaves us with nothing to answer.
    *****
    At bottom, the Commission lacked the legal authority to
    categorically abolish all fifty States’ statutorily conferred
    authority to regulate intrastate communications. For that
    reason, we vacate the Preemption Directive, 2018 Order
    ¶¶ 194–204. And because no particular state law is at issue in
    this case and the Commission makes no provision-specific
    145
    arguments, it would be wholly premature to pass on the
    preemptive effect, under conflict or other recognized
    preemption principles, of the remaining portions of the 2018
    Order.
    VII. Conclusion
    Despite the Commission’s failure to adequately consider
    the 2018 Order’s impact on public safety, pole-attachment
    regulation, and the Lifeline Program and despite our vacatur of
    the Preemption Directive, we decline to vacate the 2018 Order
    in its entirety.
    When deciding whether to vacate an order, courts are to
    consider the “the seriousness of [its] deficiencies (and thus the
    extent of doubt whether the agency chose correctly) and the
    disruptive consequences of an interim change that may itself
    be changed.” Allied-Signal, Inc. v. United States Nuclear
    Regulatory Comm’n, 
    988 F.2d 146
    , 150–151 (D.C. Cir. 1993);
    see also Heartland Regional Med. Ctr. v. Sebellius, 
    566 F.3d 193
    (D.C. Cir. 2009) (analyzing the Allied-Signal factors).
    Here, those factors weigh in favor of remand without
    vacatur. First, the Commission may well be able to address on
    remand the issues it failed to adequately consider in the 2018
    Order. See Susquehanna Int’l Grp., LLC v. SEC, 
    866 F.3d 442
    ,
    451 (D.C. Cir. 2017) (“[T]he SEC may be able to approve the
    Plan once again, after conducting a proper analysis on
    remand.”); see also Black Oak Energy, LCC v. FERC., 
    725 F.3d 230
    , 244 (D.C. Cir. 2013) (remanding without vacatur
    where it was “plausible that FERC can redress its failure of
    explanation on remand while reaching the same result”).
    Second, the burdens of vacatur on both the regulated parties (or
    non-regulated parties as it may be) and the Commission
    counsel in favor of providing the Commission with an
    opportunity to rectify its errors. Regulation of broadband
    146
    Internet has been the subject of protracted litigation, with
    broadband providers subjected to and then released from
    common carrier regulation over the previous decade. We
    decline to yet again flick the on-off switch of common-carrier
    regulation under these circumstances.
    But because the Commission’s Preemption Directive, see
    2018 Order ¶¶ 194–204, lies beyond its authority, we vacate
    the portion of the 2018 Order purporting to preempt “any state
    or local requirements that are inconsistent with [the
    Commission’s] deregulatory approach[,]” see 
    id. ¶ 194.
    For the foregoing reasons, the petitions for review are
    granted in part and denied in part.
    So ordered.
    MILLETT, Circuit Judge, concurring:
    I join the Court’s opinion in full, but not without
    substantial reservation. The Supreme Court’s decision in
    National Cable & Telecommunications Ass’n v. Brand X
    Internet Services, 
    545 U.S. 967
    (2005), compels us to affirm as
    a reasonable option the agency’s reclassification of broadband
    as an information service based on its provision of Domain
    Name System (“DNS”) and caching. But I am deeply
    concerned that the result is unhinged from the realities of
    modern broadband service.
    We have held before, as we do again today, that under the
    Supreme Court’s decision in Brand X, “classification of
    broadband as an information service was permissible.” USTA
    v. FCC, 
    825 F.3d 674
    , 704 (D.C. Cir. 2016) (emphasis added).
    That is because the Supreme Court “made clear” in Brand X,
    “over and over[,] that the [Communications] Act left
    [classification] to the agency’s discretion.” USTA v. FCC, 
    855 F.3d 381
    , 384 (D.C. Cir. 2017) (Srinivasan and Tatel, JJ.,
    concurring in the denial of rehearing en banc); see, e.g., Brand
    
    X, 545 U.S. at 992
    (“[T]he statute fails unambiguously to
    classify the telecommunications component of cable modem
    service as a distinct offering[],” and “[t]his leaves federal
    telecommunications policy in this technical and complex area
    to be set by the Commission, not by warring analogies[.]”); 
    id. at 996–997
    (“silence suggests * * * instead that the
    Commission has the discretion to fill the consequent statutory
    gap”).
    But that was then, and this is now. Brand X was decided
    almost fifteen years ago, during the bygone era of iPods, AOL,
    and Razr flip phones. The market for broadband access has
    changed dramatically in the interim. Brand X faced a “walled
    garden” reality, in which broadband was valued not merely as
    a means to access third-party content, but also for its bundling
    of then-nascent information services like private email, user
    2
    newsgroups, and personal webpage development. Today, none
    of those add-ons occupy the significance that they used to.
    Now it is impossible “to deny [the] dominance of [third-party
    content] in the broadband experience.” 
    USTA, 825 F.3d at 698
    .
    “[C]onsumers use broadband principally to access third-party
    content, not [ISP-provided] email and other add-on
    applications.” 
    Id. (emphasis added).
    In a nutshell, a speedy
    pathway to content is what consumers value. It is what
    broadband providers advertise and compete over. And so,
    under any natural reading of the statute, the technological
    mechanism for accessing third-party content is what broadband
    providers “offer.”
    As our opinion today recognizes, auxiliary services like
    DNS and caching remain in the broadband bundle. But their
    salience has waned significantly since Brand X was decided.
    DNS is readily available, free of charge, and at a remarkably
    high quality, from upwards of twenty different third-party
    providers. And caching has been fundamentally stymied by the
    explosion of Internet encryption. For these accessories to
    singlehandedly drive the Commission’s classification decision
    is to confuse the leash for the dog. In 2005, the Commission’s
    classification decision was “just barely” permissible. Brand 
    X, 545 U.S. at 1003
    (Breyer, J., concurring). Almost fifteen years
    later, hanging the legal status of Internet broadband services on
    DNS and caching blinks technological reality.
    I
    A
    The Commission’s latest reclassification decision
    reinterprets the Communications Act, and so the statutory text
    and structure are where I begin. See Ross v. Blake, 
    136 S. Ct. 1850
    , 1856 (2016).
    3
    The Act divides the world of relevant technologies into
    two buckets: “information services” subject only to minimal
    regulation, and “telecommunications services” subject to the
    common carriage requirements of Title II. “Information
    service” is defined as “the offering of a capability for
    generating, acquiring, storing, transforming, processing,
    retrieving, utilizing, or making available information via
    telecommunications.”               47      U.S.C.  § 153(24).
    “Telecommunications,” in turn, is “the transmission, between
    or among points specified by the user, of information of the
    user’s choosing, without change in the form or content of the
    information as sent and received.” 
    Id. § 153(50).
    And
    “telecommunications service” means “the offering of
    telecommunications for a fee directly to the public * * *
    regardless of the facilities used.” 
    Id. § 153(53).
    A telecommunications carrier is “treated as a common
    carrier” subject to Title II “to the extent that it is engaged in
    providing telecommunications services.” 47 U.S.C. § 153(51).
    Title II requires, among other things, that telecommunications
    carriers charge just, reasonable, and nondiscriminatory rates,
    see 
    id. §§ 201(b),
    202(a), and design their systems so that other
    carriers can interconnect with their networks, see 
    id. § 251(a).
    To be sure, these regulatory enhancements need not
    always run with the Title II classification. The Commission is
    specifically directed to “forbear from applying” common
    carrier regulations whenever forbearance “is consistent with
    the public interest,’’ 47 U.S.C. § 160(a)(3), and enforcement is
    “[un]necessary” to either “protect[]” consumers or ensure “just
    and reasonable” rates, 
    id. § 160(a)(1)–(2).
    In making that
    public interest assessment, the Commission must consider
    “whether forbearance * * * will promote competitive market
    conditions” that reduce rates and improve product quality. 
    Id. § 160(b).
    In other words, even when the Commission elects
    4
    the Title II common-carrier pathway, serving the “public
    interest” remains the touchstone.
    B
    In Brand X, the Supreme Court held that the key statutory
    term “offering” in the definition of “telecommunications
    service” is ambiguous in the following respect. Brand 
    X, 545 U.S. at 989
    . What a company “offers,” according to Brand X,
    can refer to either the “single, finished product” or the
    product’s “individual components.” 
    Id. at 991.
    Resolving that
    question in the context of broadband service required the
    Commission to determine whether broadband’s data-
    processing and telecommunications components “are
    functionally integrated * * * or functionally separate,” 
    id., and, relatedly,
    “what the consumer perceives to be the integrated
    finished product,” 
    id. at 990.
    According to Brand X, those
    questions “turn[] not on the language of [the Communications]
    Act, but on the factual particulars of how Internet technology
    works and how it is provided, questions Chevron leaves to the
    Commission to resolve in the first instance.” 
    Id. at 991.
    Brand X recognized that “telecommunications”—in the
    form of a “physical connection” between the providers’
    computers and end users’ computers, Brand 
    X, 545 U.S. at 1009
    (Scalia, J., dissenting)—“was one necessary component”
    of broadband service. See 
    id. at 978–979,
    988, 990 (majority
    opinion). But given the Commission’s definition of the word
    “offering,” the key question was whether that transmission
    component was sufficiently independent to amount to a “stand-
    alone” offering. See 
    id. at 988–989.
    At Chevron’s second step,
    the Court deferred to the Commission’s finding that “the high-
    speed transmission used to provide [the information service] is
    a functionally integrated component of [an information]
    service[.]” 
    Id. at 998.
                                   5
    Based on the technological realities of the time, the
    Supreme Court held that the Commission reasonably
    concluded in 2002 that the “data transport” aspect of broadband
    was “inextricably intertwined” with information service
    capabilities like DNS, caching, “Usenet newsgroups,” and ISP-
    provided email, so that, together, they formed just one “single,
    integrated” offering. See Brand 
    X, 545 U.S. at 977
    –979, 987–
    990.
    As today’s opinion explains, we are bound to uphold the
    Commission’s classification because it hewed closely to the
    portions of Brand X that discuss DNS and caching as
    information services. 2018 Order ¶ 33; see 
    id. ¶ 33
    n.99
    (recognizing other functionalities, but only by way of footnote,
    with no elaboration, and deeming them non-“determinative”).
    In the 2018 Order, the Commission describes DNS as
    “indispensable to ordinary users as they navigate the Internet,”
    and it claims “the absence of ISP-provided DNS would
    fundamentally change the online experience for the consumer.”
    
    Id. ¶ 34.
    The Commission then largely duplicates Brand X’s
    discussion of caching, albeit with some additional technical
    detail. 
    Id. ¶ 41.
    It concludes that they are “functions provided
    as part and parcel of” broadband, 
    id. ¶ 42,
    and should be
    “understood as part of a single, integrated information service
    offered by ISPs,” 
    id. ¶ 50;
    see also 
    id. ¶ 33
    .
    Brand X allows that approach. The Supreme Court picked
    out DNS and caching to explain why the consumer continues
    to make use of a functionally integrated information service,
    even when she “goes beyond [the walled garden] and accesses
    content provided by third parties other than the cable
    company[.]” Brand 
    X, 545 U.S. at 998
    ; 
    id. at 998–1000;
    see
    also 2018 Order ¶ 34. In so doing, the Supreme Court implied
    that DNS and caching were themselves information services.
    See 
    id. at 998–1000.
                                     6
    From our limited institutional perch as a lower court, that
    conclusion controls our decision. “[W]e must follow the
    binding Supreme Court precedent.” We the People Found.,
    Inc. v. United States, 
    485 F.3d 140
    , 145 (D.C. Cir. 2007).
    II
    The Supreme Court, however, is not so constrained. It is
    freer than we are to conclude that the “factual particulars of
    how Internet technology works,” Brand 
    X, 545 U.S. at 991
    ,
    have changed so materially as to undermine the reasonableness
    of the agency’s judgments and in particular its “determinative”
    reliance on DNS and caching, 2018 Order ¶ 33 n.99. Or
    Congress could bring its own judgment to bear by updating the
    statute’s governance of telecommunications and information
    services to match the rapid and sweeping developments in
    those areas. Either intervention would avoid trapping Internet
    regulation in technological anachronism.
    A
    The Commission’s decision to cling to DNS and caching
    as the acid test for its regulatory classification “cannot bear
    very much reality.”1 Today, the typical broadband offering
    bears little resemblance to its Brand X version. The walled
    garden has been razed and its fields sown with salt. The add-
    ons described in Brand X—“a cable company’s e-mail service,
    its Web page, and the ability it provides consumers to create a
    personal Web 
    page,” 545 U.S. at 998
    —have dwindled as
    consumers routinely deploy “their high-speed Internet
    connections to take advantage of competing services offered by
    third parties.” Title II Order ¶ 347. That is why the
    1
    T.S. Eliot, Burnt Norton, in FOUR QUARTETS 1, 4 (1943).
    7
    Commission today makes no effort to rely on those ancillary
    services. 2018 Order ¶ 33 n.99.
    In fact, the significance of the walled garden is likely what
    led the Brand X challengers to effectively concede, and likely
    what led the Supreme Court to accept, that information services
    like email, newsgroups, caching, and DNS were sufficiently
    significant to define the overall “offering” and, thus, to control
    the classification decision. The only question was whether
    those services were sufficiently integrated with transmission to
    constitute a single offering. Brand 
    X, 545 U.S. at 987
    –988.
    But such musings about the technological realities that
    seemingly informed a Supreme Court decision alone cannot
    license this court to disregard Brand X as binding precedent.
    See Dronenburg v. Zech, 
    741 F.2d 1388
    , 1392 (D.C. Cir. 1984)
    (“[W]e doubt that a court of appeals ought to distinguish a
    Supreme Court precedent on the speculation that the Court
    might possibly have had something else in mind.”).2
    With the Commission now having abandoned its reliance
    on any additional technologies provided by broadband, see
    2018 Order ¶ 33 n.99, the question is whether the combination
    of transmission with DNS and caching alone can justify the
    information service classification. If we were writing on a
    clean slate, that question would seem to have only one answer
    given the current state of technology: No. Cf. Brand 
    X, 545 U.S. at 990
    (“[C]able companies providing Internet service do
    not ‘offer’ consumers DNS, even though DNS is essential to
    providing Internet access.”) (emphasis added). Not only does
    the walled garden lay in ruin, but the roles of DNS and caching
    themselves have changed dramatically since Brand X was
    2
    To be clear, I agree fully with the majority that Brand X did
    not assess the “relative importance” of the data-processing and
    transmission components of cable modem. Majority Op. 42.
    8
    decided. And they have done so in ways that strongly favor
    classifying broadband as a telecommunications service, as
    Justice Scalia had originally advocated. Brand 
    X, 545 U.S. at 1012
    –1014 (Scalia, J., dissenting).
    DNS, much like email, is now free and widely available to
    consumers in the Internet marketplace. As explained in the
    Title II Order, “the factual assumption that DNS lookup
    necessarily is provided by the broadband Internet access
    provider is no longer true today.” Title II Order ¶ 370.
    OpenDNS was founded in 2006, just one year after Brand X
    was decided, with the mission of providing “a recursive DNS
    service for use at home.”            About Us, OpenDNS,
    https://www.opendns.com/about (last visited July 30, 2019).
    Google followed suit in 2010, rupturing the DNS status quo
    and rendering free third-party DNS a seamless reality for
    interested consumers. Google, Introducing Google Public
    DNS,      Google     Official   Blog    (Dec.    3,    2009),
    https://googleblog.blogspot.com/2009/12/introducing-google-
    public-dns.html.
    By 2015, OpenDNS and Google were processing over 180
    billion queries every day. Title II Order ¶ 370 n.1046. As the
    Title II Order recognized, “Internet users are free to use the
    DNS provider of their choice, and switching between them
    does not require altering any aspect of the Internet access
    service itself. Users need only quickly update a single setting
    in their operating system’s Internet preferences to point DNS
    requests to another server.” 
    Id. (quoting CDT
    Comments at
    14). Today, with a menu of more than twenty third-party
    providers of free DNS, cf. J.A. 2214–2215, many millions of
    Internet users have simply discarded the Commission’s North
    Star—ISP-provided DNS. Cf. 2018 Order ¶ 34 n.109.
    9
    As for caching, Petitioners explain—and the Commission
    does not dispute—that it does not work when users employ
    encryption. Mozilla’s Br. 46–47; see 2018 Order ¶ 42 n.147;
    J.A. 2182–2184. And encrypted traffic has “increased from
    just 2% in 2010 to more than 50% in 2017.” 2018 Order ¶ 42
    n.147 (quoting ACLU/EFF Reply).
    The Commission’s answer is that encryption is “not yet
    ubiquitous,” and that “many sites still do not encrypt.” 2018
    Order ¶ 42 n.147 (emphasis added) (quoting Protecting the
    Privacy of Customers of Broadband and Other
    Telecommunications Services, Report and Order, 31 FCC Rcd.
    13911, 13922, ¶ 34 (2016), nullified by Pub. L. No. 115-22, 131
    Stat. 88 (2017)). But that response concedes that caching no
    longer enjoys the pride of place ascribed to it by the Supreme
    Court in 2005. See Mozilla’s Br. 46–47. Whether or not
    encryption is “truly” “ubiquitous” is entirely beside the point,
    2018 Order ¶ 42 n.147. Caching is no longer even dominant.
    These new factual developments call for serious
    technological reconsideration and engagement through expert
    judgment. Instead, the Commission’s exclusive reliance on
    DNS and caching blinkered itself off from modern broadband
    reality, and untethered the service “offer[ed]” from both the
    real-world marketplace and the most ordinary of linguistic
    conventions.
    B
    The structure of the Communications Act fortifies this
    conclusion. The Act announces a clear intention to regulate
    market dynamics and to correct for the problems of monopoly
    power in the telecommunications industry. See 47 U.S.C.
    § 160(b) (directing the Commission to consider “whether
    forbearance [from common carriage regulations] will promote
    10
    competitive market conditions”); 
    id. § 572(a)
    (prohibiting
    carriers from “purchas[ing] or otherwise acquir[ing] directly or
    indirectly more than a 10 percent financial interest, or any
    management interest, in any cable operator providing cable
    service within the local exchange carrier’s telephone service
    area”); 
    id. § 548(a)
    (aiming to “promote the public interest,
    convenience, and necessity by increasing competition and
    diversity in the multichannel video programming market”).
    Hence, the Commission’s reasonable decision to define
    “functional equivalent” in 47 U.S.C. § 332(d)(3) in terms of
    market “substitutability.” 2018 Order ¶ 85.
    These structural considerations ought to weigh heavily in
    classifying what it is that broadband providers truly “offer” in
    the marketplace. The Commission’s analysis should key to the
    value added to the consumer—and any monopoly rents it might
    enable—rather than to any tagalong item that happens to
    promote its policy preferences. In this case, the central and
    valued “offer” is transmission—technologically taking the user
    to and from third-party information providers. To construe and
    apply the term as the Commission has, divorced from basic
    market realities, is tantamount to “perform[ing] Hamlet
    without the Prince”— understanding and applying the key
    statutory term without regard for the statute’s internal logic and
    purposes, 
    USTA, 825 F.3d at 749
    (Williams, J., concurring);
    see also Verizon v. FCC, 
    740 F.3d 623
    , 661–662 (2014)
    (Silberman, J., concurring) (emphasizing that the Act is
    designed to combat the monopolistic nature of the
    telecommunications market).
    C
    The parties also debate the “telecommunications
    management exception.” 47 U.S.C. § 153(24) (excluding from
    an “information service” “any use [of an information service]
    11
    for the management, control, or operation of a
    telecommunications system or the management of a
    telecommunications service”). As Justice Scalia explained in
    Brand X, that exception may well support excluding broadband
    from the information service category. See Brand 
    X, 545 U.S. at 1012
    –1013 (Scalia, J., dissenting) (arguing that DNS “is
    scarcely more than routing information, which is expressly
    excluded from the definition of ‘information service’”) (citing
    47 U.S.C. § 153(20)). The Commission’s two major Orders in
    this area—the Title II Order and the 2018 Order—labor at
    length to reconcile their preferred classifications with the text
    and history of the telecommunications management exception.
    Compare Title II Order ¶ 356, with 2018 Order ¶ 36.
    But ambiguity in the telecommunications management
    exception does not mean that anything goes. Ambiguity alone
    is virtually never enough to sustain agency action. See Brand
    
    X, 545 U.S. at 985
    (asking whether the agency has
    “reasonabl[y]” filled the textual gap). Here, as the court’s
    opinion recognizes, the exception is fluid by design—it
    operates as a means of catching data-processing tools that are,
    at most, incidental to the core transmission service.
    So when framed in Chevron’s terms, the Commission
    faced a choice between classifying the combination of
    transmission and DNS/caching as an integrated “information
    service” offering, or classifying that package as a
    telecommunications service, with DNS/caching falling within
    the telecommunications management exception. In my view,
    the reasonableness of that choice should turn, at least in part,
    upon the “relative importance” of the different capabilities in
    the marketplace. So, while the two sides argue at length over
    whether functions like DNS and caching should fall within the
    exception, the important analytical work should really occur at
    the antecedent step when deciding whether the transmission
    12
    element is so dominant that it would be unreasonable not to
    apply the exception to DNS and caching. If precedent did not
    dictate otherwise, the answer to that antecedent inquiry would
    put DNS and caching squarely into the telecommunications
    management exception.
    III
    According to the Commission, even putting Brand X aside,
    broadband is an information service for a new reason—one that
    is immune to changes in the “factual particulars of how Internet
    technology works and how it is provided.” Brand 
    X, 545 U.S. at 991
    . Broadband connection is an information service, the
    Commission tells us, because it is “designed and intended”
    with the “fundamental purpose[]” of facilitating access to third-
    party information services. 2018 Order ¶ 30. In other words,
    in the Commission’s view, broadband itself need not include
    any data processing at all to satisfy the information-service
    definition. It is enough that broadband is a designated
    transmission pathway to third-party content—that is, that it
    “has the capacity or potential ability to be used to engage in the
    activities within the information service definition[.]” 
    Id. That move
    is incompatible with Brand X, the basic
    mechanics of Title II, and the texts of the relevant definitional
    provisions.
    For starters, the Commission’s novel interpretation
    effectively abrogates the Brand X blueprint. Brand X prized
    above all else “consumer perce[ption]” and “functional[]
    integration,” leaving those inquiries to the Commission’s
    technocratic judgment. Brand 
    X, 545 U.S. at 990
    –991. But if
    the Commission is right today, and pure data transmission is an
    information service just because its “purpose” is to facilitate
    access to other information services, then there would be no
    13
    combination of services left for expert technical analysis. “The
    entire question,” Brand X tells us, “is whether the products here
    are functionally integrated (like the components of a car) or
    functionally separate (like pets and leashes).” Brand 
    X, 545 U.S. at 991
    . The Commission’s approach abandons that test by
    simply redesignating the transmission component itself as also
    an information service.
    The problems with the Commission’s position do not stop
    there. As numerous commenters warned, the Commission’s
    capacious view of “information service” would imperil the one
    proposition on which everyone has so far been able to agree:
    traditional telephony belongs within Title II. That worrisome
    implication suggests the Commission has drifted far beyond the
    statutory design and exceeded its interpretive discretion.
    To appreciate why, consider the most ordinary uses of
    telephone and broadband service.           Both enable casual
    conversation—whether via a traditional phone call or voice-
    over-Internet protocol. Both also provide the user access to a
    wealth of information (in the form of automated information
    systems or websites). See Amicus Br. of Members of Congress
    at 21–22 (citing the example of “Julie,” Amtrak’s automated
    reservation service). And because these overlapping functions
    are non-accidental (i.e., by “design”), presto: the old touchtone
    phone is now immune from common-carriage regulation.
    That definition, though, would render Title II an empty
    basket. Nothing of any meaning would be left to qualify as a
    telecommunications service. See Mackey v. Lanier Collection
    Agency & Serv., Inc., 
    486 U.S. 825
    , 837 (1988) (“[W]e are
    hesitant to adopt an interpretation of a congressional enactment
    which renders superfluous another portion of that same law.”).
    14
    The Commission says it has “always understood
    traditional telephone service ‘to provide basic transmission—a
    fact not changed by its incidental use, on occasion, to access
    information services.’” FCC’s Br. 34 (emphasis added)
    (quoting 2018 Order ¶ 56). But that response avoids the key
    question: Whether the Commission’s new position can be
    squared with what it has always understood. Historically, the
    Commission has viewed telephony as pure transmission
    because that is exactly what it is. Any information services—
    from directory assistance to automated ordering systems—to
    which the phone provided access were never thought to bear
    upon telephony’s classification status as a telecommunications
    service, and not an information service.
    At least not until now. The Commission’s novel and
    utterly capacious definition of information services as just
    providing the user transmissive access to information requires
    that it contend with the traditional use of telephones “to
    generate, acquire, store, transform, process, retrieve, utilize,
    and make available information.” 2018 Order ¶ 56. An
    announced fealty to prior agency practice is no help when the
    whole question is whether the new approach imperils the
    foundation of that pedigree.
    The Commission’s position fares no better when measured
    against the text of the statute. The Commission claims
    broadband offers the relevant “capabilities” of an information
    service because it is “designed” or “intended” to achieve the
    “fundamental purpose[]” of acquiring and retrieving
    information. 2018 Order ¶ 30. But those purposive qualifiers
    are nowhere to be found in the statutory text.
    The Commission’s position also requires it to carve out an
    unenumerated exception to the statute’s straightforward
    definition   of       “telecommunications            service.”
    15
    “Telecommunications service” is “the offering of
    telecommunications”—that is, “the transmission, between or
    among points specified by the user, of information of the user’s
    choosing, without change in [its] form or content,” 47 U.S.C.
    § 153(50)—“for a fee directly to the public,” 
    id. § 153(53).
    On
    the Commission’s view, a telecommunications pathway that is
    “designed” to facilitate information acquisition and
    manipulation does not meet the telecommunications definition
    and is instead an information service. 2018 Order ¶ 56
    (distinguishing broadband from a telecommunications service
    because it is “designed * * * to electronically create, retrieve,
    modify and otherwise manipulate information”).
    The problem is the statute does not include a mens rea
    “design” exception. Presumably because every transmission
    pathway is designed on some level to acquire and retrieve data.
    What would be the point of transmission otherwise? So
    following the Commission’s view to its logical conclusion,
    everything (including telephones) would be an information
    service. The only thing left within “telecommunications
    service” would be the proverbial road to nowhere.
    So, in addition to upending the only fixed point in our post-
    Brand X world (that is, traditional telephony as a
    telecommunications service), the Commission’s position treats
    the statutory text as an afterthought. Yet agencies are not
    supposed to “rewrite clear statutory terms to suit [their] own
    sense of how the statute should operate.” Utility Air
    Regulatory Grp. v. EPA, 
    134 S. Ct. 2427
    , 2446 (2014).
    *****
    In an area so fraught with political contest and technical
    complexity, we ordinarily grant the administering agency the
    widest possible berth in interpreting and administering a
    16
    technical statutory scheme. But that discretion is not unlimited,
    and it cannot be invoked to sustain rules fundamentally
    disconnected from the factual landscape the agency is tasked
    with regulating. By putting singular and dispositive regulatory
    weight on broadband’s incidental offering of DNS and caching,
    the Commission misses the technological forest for a twig.
    Yet, as a lower court, we are bound to “the [Supreme
    Court] case which directly controls,” and so we must follow
    Brand X, as the court’s opinion does. Agostini v. Felton, 
    521 U.S. 203
    , 237 (1997). It is the Supreme Court’s sole
    “prerogative” to read Brand X in light of the facts of its day,
    
    id., and to
    require the Commission to bring the law into
    harmony with the realities of the modern broadband
    marketplace. Until it does—or until Congress steps up to the
    legislative plate—I am bound to concur in sustaining the
    Commission’s action.
    WILKINS, Circuit Judge, concurring:
    I too join the Court’s opinion in full. As Judge Millett’s
    concurring opinion persuasively explains, we are bound by the
    Supreme Court’s decision in National Cable &
    Telecommunications Ass’n v. Brand X Internet Services, 
    545 U.S. 967
    (2005), even though critical aspects of broadband
    Internet technology and marketing underpinning the Court’s
    decision have drastically changed since 2005. But revisiting
    Brand X is a task for the Court – in its wisdom – not us.
    WILLIAMS, Senior Circuit Judge, concurring in part and
    dissenting in part:
    And be these juggling fiends no more believed,
    That palter with us in a double sense;
    That keep the word of promise to our ear,
    And break it to our hope.
    So says Macbeth, finding that the witches’ assurances were
    sheer artifice and that his life is collapsing around him. The
    enactors of the 2018 Order, though surely no Macbeths, might
    nonetheless feel a certain kinship, being told that they acted
    lawfully in rejecting the heavy hand of Title II for the Internet,
    but that each of the 50 states is free to impose just that. (Many
    have already enacted such legislation. See, e.g., Cal. S. Comm.
    on Judiciary, SB 822 Analysis 1 (2018) (explaining that
    California has expressly “codif[ied] portions of the recently-
    rescinded . . . rules”).) If Internet communications were tidily
    divided into federal markets and readily severable state
    markets, this might be no problem. But no modern user of the
    Internet can believe for a second in such tidy isolation; indeed,
    the Commission here made an uncontested finding that it would
    be “impossible” to maintain the regime it had adopted under
    Title I in the face of inconsistent state regulation. On my
    colleagues’ view, state policy trumps federal; or, more
    precisely, the most draconian state policy trumps all else. “The
    Commission may lawfully decide to free the Internet from Title
    II,” we say, “It just can’t give its decision any effect in the real
    world.”
    The Commission has invoked the “impossibility
    exception,” a well-established ground of FCC preemption. (It
    is an “exception” to 47 U.S.C. § 152(b)’s otherwise existing
    barrier to Commission jurisdiction over any charges, etc., “in
    connection with intrastate communication service by wire or
    radio of any carrier” (emphasis added).) As formulated by our
    2
    circuit, the exception permits the Commission to preempt state
    regulation “when (1) the matter to be regulated has both
    interstate and intrastate aspects . . . ; (2) FCC preemption is
    necessary to protect a valid federal regulatory objective . . . ;
    and (3) state regulation would ‘negate[] the exercise by the
    FCC of its own lawful authority’ because regulation of the
    interstate aspects of the matter cannot be ‘unbundled’ from
    regulation of the intrastate aspects.” Public Service Comm’n of
    Maryland v. FCC, 
    909 F.2d 1510
    , 1515 (D.C. Cir. 1990).
    Prong (1) is obviously satisfied, and petitioners bring no
    challenge under prong (2)—that “preemption is necessary to
    protect a valid federal regulatory objective,” or the all-
    important final part of prong (3)—that “regulation of the
    interstate aspects of the matter cannot be ‘unbundled’ from
    regulation of the intrastate aspects.” 
    Id. The 2018
    Order
    reasoned that trying to segregate flows of Internet data into
    discrete intrastate and interstate components for regulatory
    purposes would be quite hopeless:
    Because both interstate and intrastate
    communications can travel over the same Internet
    connection (and indeed may do so in response to a
    single query from a consumer), it is impossible or
    impracticable for ISPs to distinguish between
    intrastate and interstate communications over the
    Internet or to apply different rules in each
    circumstance. Accordingly, an ISP generally could
    not comply with state or local rules for intrastate
    communications without applying the same rules to
    interstate communications. Thus, because any effort
    by states to regulate intrastate traffic would interfere
    with the Commission’s treatment of interstate traffic,
    the first condition for conflict preemption is satisfied.
    3
    2018 Order ¶ 200. Although petitioners posed objections to
    such findings before the agency, they make none here, despite
    the high bar our cases set for the agency on such issues. See,
    e.g., Nat’l Ass’n of Regulatory Util. Comm’rs v. FCC, 
    880 F.2d 422
    , 430 (D.C. Cir. 1989) (stating that “a valid FCC preemption
    order must be limited to [activities] that would necessarily
    thwart or impede the operation of a free market in the [relevant
    area]” (emphasis added)).         Thus the proposition that
    disallowance of preemption would thoroughly frustrate the
    application of the Commission’s decision is uncontested.
    Nor is the preemptive language broader than the
    Commission has historically used in exercising impossibility
    preemption.       See, e.g., Second Computer Inquiry,
    Memorandum Opinion and Order, 84 F.C.C. 2d 50 ¶ 155
    (1980) (“While this requirement may impair the states’ ability
    to establish charges for intrastate service, we have imposed it
    only to best implement our jurisdiction under Sections 1 and
    2(a) over interstate service. When the exercise of our
    jurisdiction over interstate services requires the imposition of
    requirements for unbundling and nonusage sensitive charges,
    however, inconsistent state regulations must yield to
    preeminent claims of the federal regulatory scheme.”).
    Given the uncontested findings, petitioners and the
    majority rest the case against preemption entirely on the theory
    that the Commission lacks authority to preempt. Of course
    authority is essential. Preemption by an agency without
    authority to preempt would be a contradiction in terms under
    our constitutional system, where Congress makes the laws. It
    is also uncontested here that Congress did not afford the FCC
    express authority to preempt.
    But Supreme Court decisions make clear that a federal
    agency’s authority to preempt state law need not be expressly
    granted. When a federal agency “promulgates regulations
    4
    intended to pre-empt state law [i.e., with an express statement
    of agency intent], the court’s inquiry is . . . limited,” Fidelity
    Fed. Sav. & Loan Ass’n v. de la Cuesta, 
    458 U.S. 141
    , 154
    (1982):
    If [the agency’s] choice represents a reasonable
    accommodation of conflicting policies that were
    committed to the agency’s care by the statute, we
    should not disturb it unless it appears from the statute
    or its legislative history that the accommodation is not
    one that Congress would have sanctioned.
    
    Id. (quoting United
    States v. Shimer, 
    367 U.S. 374
    , 383
    (1961)).
    Given the Commission’s undisputed findings here, the
    only vulnerability of its position is the possibility suggested in
    the last clause—whether “it appears from the statute or its
    legislative history that the accommodation is not one that
    Congress would have sanctioned.” Inquiry into that question
    proceeds in the usual way of discerning congressional intent,
    exemplified by City of New York v. FCC, 
    486 U.S. 57
    (1988).
    There the Court found that Congress had empowered the FCC
    to adopt a prophylactic rule preempting state attempts to
    impose on certain cable operators “more stringent” technical
    standards than those imposed by the Commission, 
    id. at 63,
    regardless of “whether . . . an actual conflict” existed between
    the state standards and any federal law or regulation, 
    id. at 65-
    66. The Court located that broad pre-emptive authority in
    § 624(e) of the Cable Act, 47 U.S.C. § 544(e) (1982), 
    id. at 70
    n.6, even though that section said nothing about preemption. It
    rested the inference on the fact that “[w]hen Congress enacted
    the Cable Act [of 1984] . . . it acted against a background of
    federal pre-emption on [the cable standards] issue.” 
    Id. at 66.
    As we shall see, the background of pre-1996 preemption
    provides less obvious and emphatic support; only one decision,
    5
    California v. FCC, 
    39 F.3d 919
    (9th Cir. 1994), expressly
    rested on the Commission’s interest in protecting the open
    market in services under Title I from state or local frustration.
    See below, pp. 16–17. Nonetheless, the statute, its history and
    its interpretation give ample reason to infer a congressional
    intent that the Commission be authorized to preempt state laws
    that would make it “impossible or impracticable” (see ¶ 200,
    above) for ISPs to exercise the freedom that the Commission
    meant to secure by classifying broadband under Title I.
    We start with Chevron’s understanding that where
    “Congress has explicitly left a gap for the agency to fill, there
    is an express delegation of authority.” Chevron, U.S.A., Inc. v.
    Nat’l Res. Def. Council, Inc., 
    467 U.S. 837
    , 843–44 (1984).
    “Sometimes the legislative delegation to an agency on a
    particular question is implicit rather than explicit.” 
    Id. at 844.
    In the case of the 1996 Act, via ambiguity in the word “offer,”
    see Nat’l Cable & Telecomm. Ass’n v. Brand X Internet Servs.,
    
    545 U.S. 967
    , 989–92 (2005), Congress implicitly delegated to
    the FCC the power to determine whether to locate broadband
    under Title II, where it would be potentially subject to the full
    gamut of regulations designed for natural monopoly, or under
    Title I, which itself authorizes virtually no federal regulation.
    (An exception is 47 U.S.C. § 257, which though located in Title
    II was expressly written to apply to all of Chapter 5, which
    encompasses Titles I through VI.) All members of the panel
    agree that here as in Brand X the Commission lawfully placed
    broadband service under Title I of the 1996 Act and lawfully
    rejected placing it under Title II.
    The consequences of the Commission’s choice of Title I
    depend on its having authority to preempt. One possible
    outcome is that the choice did little more than flick the federal
    regulatory switch into the off position, with narrow exceptions
    such as authority under § 257, which the Commission has
    exercised to assure transparency in ISP behavior. On that view,
    6
    the Commission’s choice of Title I essentially turned the field
    over to states and localities, leaving each free to select as
    prescriptive control over broadband as it might think best. Of
    course the individual state or locality, if inclined to a genuinely
    light-touch regime, would have to face the reality that the
    Commission addressed in ¶ 200 of the Order, quoted just
    above. Just as an ISP cannot “comply with state or local rules
    for intrastate communications without applying the same rules
    to interstate communications,” it seems safe to say that an ISP
    bound to apply the rules of California to any of its service will
    also need—because of the impossibility of “distinguish[ing]
    between intrastate and interstate communications over the
    Internet,” 2018 Order ¶ 200—to apply those heavy-handed
    rules to all its service.
    The other possible outcome is that the congressional grant
    of power to choose Title I entailed Commission authority to
    choose a genuinely light-touch national regime—for all
    broadband in the United States. On this view, the choice of
    Title I, coupled with preemption of inconsistent state and local
    regulation, allows establishment of a genuinely federal policy
    for broadband, with service based primarily on consumer and
    provider response to market forces.
    Under the first view, the feds step aside and leave the
    matter to the states (or, more realistically, to the most ardently
    regulatory state). Under the second, federal law adopts a
    nationwide regime governed primarily by market forces.
    As Congress did not specifically grant or withhold
    preemption authority in the context of Title I, we must look for
    other clues. The strongest (invoked by the Commission, see
    2018 Order ¶ 204) is the provision flat-out preempting state
    authority to enforce any of the Title II provisions “that the
    Commission has determined to forbear from applying.” 47
    U.S.C. § 160(e).      Within the Title II realm, the statute
    7
    automatically requires state congruence with the Commission’s
    choices as to regulatory stringency (at least to the extent that
    choices are made by forbearance or refraining from
    forbearance). As the Commission exercises discretion to go
    down the scale of dirigisme, Congress requires the states to trail
    along.
    Yet petitioners tell us not only that mandatory state
    congruence collapses automatically once the Commission steps
    off the Title II escalator and chooses Title I, but that the
    Commission is left with no authority to make its policy choice
    a national one. Such a view would put the Commission in
    paradoxical bind. The Commission could create an effective
    federal policy controlling communications brought under Title
    II, within a considerable range of intrusiveness, but if it finds
    the light-touch associated with Title I more apt, it then de facto
    yields authority over interstate communications to the states.
    Of course this inference from statutory forbearance
    preemption automatically encounters the maxim expressio
    unius est exclusio alterius: Congress’s direction of preemption
    for all lawful exercises of forbearance from Title II authority,
    with no parallel provision for the Commission’s choice of Title
    I, might be taken to exclude any preemption once the
    Commission chooses Title I (putting aside preemption aimed at
    maintaining the effectiveness of regulation under Title II, see
    Comcast Corp. v. FCC, 
    600 F.3d 642
    , 654 (D.C. Cir. 2010)).
    Such a congressional intent seems improbable. First, the
    expressio unius maxim doesn’t really fit: § 160(e) operates to
    preempt as a matter of law, whereas here we are talking of
    whether the Commission has a discretionary choice to preempt.
    The existence of an orange doesn’t imply the absence of an
    apple. Second, under Brand X’s reading of the 1996 Act, we
    have to infer a congressional belief that the very light touch
    associated with Title I would be a reasonable Commission
    8
    choice. But we also know that Congress wanted a Commission
    choice among fine gradations of regulatory intrusiveness to be
    applied nationally (to the extent necessary for it to apply fully
    to all interstate communications)—by granting the forbearance
    power in Title II, coupled with automatic preemption.
    Accepting the expressio unius argument requires us to think
    that Congress intended to suspend Commission authority to
    implement its policy choice nationally just at the point where
    the agency’s findings in favor of deregulation cease to be
    achievable under the combination of Title II-plus-forbearance.
    This dilemma would disappear if the Commission could
    move down the forbearance escalator under Title II to a point
    very close to the ultra-light-touch of Title I. But it can’t. No
    Commission, however intellectually gifted, could write an
    order explaining (a) why Title II was suitable because of
    serious market failures requiring corrective government action
    under its grants of authority, and simultaneously (b) why it was
    exercising its authority to forbear from exercising all those
    authorities. Section 160(a), after all, requires that in exercising
    forbearance the Commission determine that enforcement of the
    provision at issue isn’t necessary to assure that rates are just
    and reasonable, or for the protection of customers, and that
    forbearance is consistent with the public interest. It would be a
    neat trick to explain how the “difficult policy choices” that
    Brand X said “agencies are better equipped to make than
    
    courts,” 545 U.S. at 980
    , called for the imposition of Title II
    and—simultaneously—for forbearance from all its actual
    authorities. Under petitioners’ view, as a practical matter, a
    Commission could create a national light-touch regime only by
    choosing a place on the escalator (materially more dirigiste than
    is implicit in Title I) where it could deftly but persuasively
    reconcile Title II with substantial forbearance. It is hard to
    imagine a rational Congress providing for use of Title I, but
    requiring that any national deregulatory policy be implemented
    9
    only to the degree that it might prove achievable under the
    internal constraints of Title II.
    The improbable idea that Commission development of a
    national telecommunications policy can occur only within the
    constraints of Title II would especially surprise the 1996 Act’s
    joint House-Senate conference committee. In introducing the
    Act, the committee explained that it was “to provide for a pro-
    competitive, de-regulatory national policy framework.” S.
    REP. NO. 104-230, at 1 (1996) (Conf. Rep.) (emphasis added).
    On petitioners’ view, the committee indulged in a massive self-
    contradiction: The policies allowed by the bill could be
    deregulatory, or national, but not both—at least not beyond
    such deregulation as the Commission could coherently fit under
    Title II.
    In the end the question turns on whether we see preemption
    as serving to protect the federal regulations from state
    frustration or to protect federal choice of a regulatory regime
    from state frustration. Suppose that the statute, instead of
    delegating authority to choose between the two titles via
    definitional ambiguity, had said bluntly, “The Commission
    shall in its reasonable discretion choose between applying the
    regulatory scheme applicable under Title II and the one
    applicable under Title I.” And the Commission had responded
    by saying it chose the scheme available under Title I, offering
    as reasons the sort of policy analysis that it did here. Would
    any of the cases rejecting agency preemption efforts bar a
    Commission order preempting types of state regulation that
    would defeat the purposes the Commission invoked in its
    decision to place broadband under Title I?
    The majority staunchly believes that preemption serves
    solely to protect affirmative federal regulations. Responding
    to the Commission’s reliance on the preemption that
    automatically follows forbearance under Title II, it says, “the
    10
    Commission [has] broad authority over services classified
    under Title II, unlike those classified under Title I.” Maj. op.
    133. True enough. But the lesson it draws is a complete non
    sequitur: The broad authority under Title II, says the majority,
    is “why the Act carves out more space for federal objectives to
    displace those of the States in the Title II context.” 
    Id. This explanation
    assumes an asymmetry in preemption implications
    between (i) heavy-handed regulation and (ii) light-touch
    regulation. If an agency decides that a robust regulatory
    scheme is apt in a given sector (say, under Title II), the majority
    is ready to infer authority to preempt. But, the majority insists,
    if the agency determines that an industry will flourish best
    under competitive market norms and accordingly adopts a
    “light-touch” path, preemption is suddenly superfluous
    because the agency now has less “power to regulate services.”
    A clearer insistence on the unsupported notion that preemption
    protects only regulation itself, not a regime of lawful regulatory
    choices, is hard to imagine.
    Viewed as a matter of protecting a lawfully chosen federal
    regulatory scheme, an inference of preemptive authority is
    sound to the extent that the state action in question would
    frustrate an agency’s authorized policy choices and actions.
    Dirigiste state regulation in a sector that an agency thinks works
    best under market norms would undercut the agency’s aims, no
    more, no less, than state rules undermining the agency’s
    affirmative regulations.
    The majority’s leitmotiv—indeed the entire foundation of
    its conclusion—is that only an agency’s possession of
    affirmative regulatory authority can support authority to
    preempt state regulation (state regulation nominally applying
    only to intrastate communications, but because of the
    impossibility of separation, in practice engulfing interstate
    communications). See Maj. op. 123 (“[I]n any area where the
    Commission lacks the authority to regulate, it equally lacks the
    11
    power to preempt state law.”); 
    id. at 128
    (“In other words, the
    impossibility exception presupposes the existence of statutory
    authority to regulate; it does not serve as a substitute for that
    necessary delegation of power from Congress.”); 
    id. at 132
    (“[P]reemption authority depends on the Commission
    identifying an applicable statutory delegation of regulatory
    authority . . . .”); 
    id. at 134
    (concluding that courts cannot
    evaluate if Congress provided preemption authority “if there is
    no legislative grant of authority against which to evaluate the
    preemptive rule, and certainly not when, as here, Congress
    expressly withheld regulatory authority over the matter”); 
    id. at 138
    (“[T]he dissenting opinion fails to explain how the
    Commission’s interpretive authority under Chevron to classify
    broadband as a Title I information service could do away with
    the sine qua non for agency preemption: a congressional
    delegation of authority either to preempt or to regulate”). But
    reiteration is not proof—no matter how self-assured. The claim
    is wrong in its broad form and is inapplicable to the
    circumstances here.
    I must speak of “the broad form” of the maxim because the
    majority offers two variations. Most take the broad form—
    denying any possibility of preemption in the absence of
    affirmative regulatory authority. But two expressions of the
    maxim are accompanied by an acknowledgement that Congress
    itself can allow such preemption with express statutory
    language. 
    Id. at 123,
    138. Thus even the narrow form tacks on
    a self-made and unexplained requirement that any such
    congressional decision can have legal effect only if it is express,
    despite our living in a world where judicial interpretation of
    statutes rarely insists on an express provision outside the
    context of a clear statement rule or its equivalent. This narrow
    version of the maxim, however, appears to be entirely the
    majority’s handiwork and to rest entirely on its premise of
    asymmetry.
    12
    The majority’s acknowledgment of congressional
    authority is necessary. Congress plainly has power itself to
    preempt state regulation interfering with the flow of market
    forces in a specified domain, without having regulated or
    afforded an agency parallel affirmative regulatory authority.
    See, e.g., 49 U.S.C. § 41713(b)(1) (preempting states from
    regulating airline prices and routes to protect the deregulation
    of the airline industry from state interference). The same
    principle undergirds a congressional choice (express or
    implied) to grant an agency equivalent preemptive authority
    without any parallel federal regulation (by Congress or a
    federal agency). See 47 U.S.C. §§ 253 (a), (d) (preempting and
    authorizing agency preemption of state and local regulations
    that “may prohibit or have the effect of prohibiting the ability
    of any entity to provide any interstate or intrastate
    telecommunications service”).
    Further, the majority’s maxim is inapplicable. There is no
    doubt whatsoever that on December 13, 2017, the day before
    adoption of what we call the 2018 Order, the Commission had
    authority to apply Title II to broadband. By its classification
    decision, it forswore any current intention to use Title II vis-à-
    vis broadband. But the authority to reclassify broadband back
    under Title II, and thus to subject it to all the authorities granted
    under Title II, remained.           Under the 1996 Act the
    Commission’s choice not to exercise a power is not a
    permanent renunciation of that power.
    We see this rather obviously in relation to forbearance.
    When the Commission adopted the Title II Order it also elected
    to forbear from a slew of the powers available under Title II.
    But everyone recognized that these forbearance decisions were
    reversible at the Commission’s election, plus, of course, its
    satisfying the usual requirements for regulatory change, most
    obviously those of FCC v. Fox Television Stations, Inc., 
    556 U.S. 502
    (2009). There are two ways of characterizing the
    13
    period of forbearance-and-preemption between the two orders:
    One could view the accompanying preemption (executed by
    Congress itself) either as explicit provision for preemption
    accompanying an absence of regulatory power (anathema to
    the majority), or as preemption accompanying the
    Commission’s reserved, latent regulatory authority (thereby
    satisfying the majority’s maxim). Either way, the current
    situation is parallel: Because preemption is necessary to make
    the agency’s lawful exercise of power effective, it accompanies
    the agency decision to hold its Title II powers over broadband
    in abeyance.
    The majority assumes without explanation that in allowing
    the Commission a choice between full-throttled regulation
    under Title II and very light regulation under Title I Congress
    had no interest in making sure that the Commission could, if it
    exercised the latter choice, establish an effective national
    broadband policy (applying directly to interstate
    communications and indirectly to intrastate regulations to the
    extent that it was impossible to distinguish between intrastate
    and interstate communications, i.e., to the extent that it was
    called for by the familiar impossibility exception). I can see no
    basis for imputing such an outlook to Congress.
    The Supreme Court has clearly ruled that authority to
    preempt may be inferred to support an agency’s regulatory
    scheme. In City of New York, as we’ve seen, the Court found
    that Congress had empowered the FCC to preempt state
    attempts to apply more stringent technical standards than those
    imposed by the Commission, regardless of any conflict
    between the federal and state 
    standards. 486 U.S. at 63
    , 65-66.
    (That decision was under a statute enacted against a
    background of parallel Commission preemption, an issue I’ll
    take up below at pp. 15–17.)
    14
    Similarly, the Court has said that a “federal decision to
    forgo regulation in a given area may imply an authoritative
    federal determination that the area is best left unregulated, and
    in that event would have as much pre-emptive force as a
    decision to regulate.” Arkansas Electric Co-op. Corp. v.
    Arkansas Public Service Comm’n, 
    461 U.S. 375
    , 384 (1983);
    see 2018 Order ¶ 194 & n.726. The majority points out that the
    Court found the statute at issue did not, in fact, “imply an
    authoritative federal determination that the area is best left
    
    unregulated,” 461 U.S. at 384
    (or, as here, a congressional
    delegation to the agency of authority to make that choice). But
    the reason for this does nothing to undermine the relevance of
    Arkansas Electric. The Federal Power Commission had
    determined as a jurisdictional matter that another agency had
    “exclusive authority” over rural power cooperatives, so that it
    in fact had no occasion to “determine that, as a matter of policy,
    rural power cooperatives that are engaged in sales for resale
    should be left unregulated.” 
    Id. The FCC’s
    choice of Title I in
    the 2018 Order was of course exactly a determination that
    broadband should be left free of the burdens of Title II.
    And in Ray v. Atlantic Richfield Co., 
    435 U.S. 151
    , 178
    (1978), the Court held that “the Secretary [of Transportation]’s
    failure to promulgate a ban on the operations of oil tankers in
    excess of 125,000 [deadweight tons] [a ceiling that the State of
    Washington purported to impose] . . . takes on . . . [the]
    character” of a ruling “‘that no such regulation is appropriate’”
    and thus “States are not permitted to use their police power to
    enact such a regulation” (quoting Bethlehem Steel Co. v. N.Y.
    State Labor Relations Bd., 
    330 U.S. 767
    , 774 (1947)). The
    majority brushes Ray aside because, while the Court blessed
    agency preemption, it had made an antecedent finding that the
    statute in question “delegat[ed] regulatory power to the
    agency,” that is, power to make rules concerning vessel sizes
    and speeds. Maj. op. 140. But the Court’s relevant decision
    was that the statute contemplated “a single decisionmaker” on
    15
    the regulation of 
    supertankers, 435 U.S. at 177
    , just as, given
    the historic use of the “impossibility exception,” it is a safe
    conclusion that the 1996 Act contemplated “a single
    decisionmaker” for interstate services located under Title I,
    protected from state interference to the extent necessary for its
    effectiveness, e.g., where, as the Commission found here, “an
    ISP generally could not comply with state or local rules for
    intrastate communications without applying the same rules to
    interstate communications.” 2018 Order ¶ 200.
    I mentioned above that pre-1996 exercises of preemptive
    authority by the Commission have generally not rested (or at
    least have not rested exclusively) on an implication of power
    from the Commission’s election to place services under Title I
    and concomitant power to keep states from thwarting the
    Commission’s adoption of an ultra-light-touch regulatory
    policy. The reason is fundamentally that the Commission, in
    implementing its decisions to remove certain services from
    Title II, namely customer premises equipment (“CPE”) and
    “enhanced services” (the precursor of information services),
    has been able to rely on authority ancillary to Title II. Thus in
    Computer II it required AT&T to offer enhanced services and
    CPE only through a separate subsidiary and required all
    common carriers to unbundle charges for CPE from their
    charges for telecommunications services. Second Computer
    Inquiry, Final Decision, 77 F.C.C. 2d 384 ¶¶ 9, 12 (1980);
    Second Computer Inquiry, Memorandum Opinion and Order,
    84 F.C.C. 2d at ¶ 66. We upheld these requirements in
    Computer & Communications Industry Ass’n v. FCC, 
    693 F.2d 198
    (D.C. Cir. 1982) (“CCIA”), resting on the Commission’s
    interest in preventing cross-subsidization of the competitive
    services with revenue from the common carrier services. These
    requirements at once enabled the Commission to prevent
    distortion of the free market for enhanced services and CPE by
    carriers’ revenue from monopoly services, 
    id. at 211,
    and to
    protect consumers of the monopoly services from higher rates
    16
    on those services (that’s the source of the revenue for cross-
    subsidization), 
    id. at 213.
    In Comcast, we expressly tethered
    this exercise of power to the Commission’s role in protecting
    the consumers of monopoly 
    services. 600 F.3d at 655-56
    .
    CCIA also upheld the Commission’s preemption of any
    state inclusion of CPE charges in their tariffs for monopoly
    communications services (a similar preemption to assure
    structural separation for enhanced services went unchallenged),
    resting on the Commission’s exercise of ancillary power to ban
    the 
    unbundling. 693 F.2d at 214
    –18. Thus the preemptions
    under Computer II raised no question entirely dependent on the
    authority of the Commission to protect its choice of non-
    regulation for the services newly removed from Title II.
    Similar reasoning governed our approval of the Commission’s
    preemption of any state failure to remove “inside wiring” from
    common carrier tariffs.        National Ass’n of Regulatory
    Commissioners v. FCC, 
    880 F.2d 422
    (D.C. Cir. 1989).
    When the Commission in Computer III reversed its
    position on structural separation, requiring its elimination for
    the Bell Operating Companies that succeeded AT&T, its
    preemption of contrary state common carrier rules could have
    been sustained on the same basis. California v. FCC, 
    39 F.3d 919
    , 923–25, 931–33 (9th Cir. 1994); see also California v.
    FCC, 
    905 F.2d 1217
    , 1243 (9th Cir. 1990). Nonetheless—and
    quite logically, because the Commission’s Computer III
    preemption rested in part on the Commission’s interest in
    assuring fair competition in the rising enhanced services market
    located under Title I, 
    California, 39 F.3d at 924
    —the 9th
    Circuit decision upholding preemption went further. It noted
    petitioner State of New York’s claims “that the FCC may
    preempt state action only when it is acting pursuant to specified
    regulatory duties under Title II of the Act,” and that “no
    preemption authority exists” when “the FCC’s action is
    intended to implement the more general goals of Title I.” 
    Id. at 17
    932. It responded unequivocally, “This position must be
    rejected.” Id.; see also 2018 Order ¶ 198 & n.738; FCC Br. at
    119.
    Apart from the 9th Circuit’s 1994 California decision, this
    pre-1996 litigation doesn’t offer affirmative support for the
    inference of authority to preempt state regulation rendering
    impossible its achievement of a deregulatory regime for Title I
    services. But no case has rejected that inference—an entirely
    reasonable inference, in my view, for the reasons set out above.
    The majority appears to believe that the cases above reinforce
    its notion that an agency can exercise preemption only in
    support of currently deployed affirmative regulatory authority,
    Maj. op. 125, but the cases hold no such thing. All could
    uphold the Commission in reliance on its Title II authority. It
    is striking, however, that in 1994 in California the 9th Circuit
    went farther and rested expressly on the Commission’s power
    to protect the unregulated market in enhanced services, created
    by locating such services under Title I, which the Computer III
    decision had sought to protect.
    In addition to California (1994), a post-enactment circuit
    court decision touches on Commission authority to preempt
    state regulations inconsistent with the Commission’s
    deregulatory regime for broadband. In Minnesota Public
    Utilities Commission v. FCC, 
    483 F.3d 570
    (8th Cir. 2007), the
    Eight Circuit upheld an FCC order preempting state regulation
    of VoIP under the impossibility exception even before the
    agency had decided whether to classify VoIP as an information
    service or a telecommunications service. The agency rested on
    its view that the matter turned only on the practical issues
    revolving around the impossibility exception—whether
    separating the intrastate and interstate aspects of the service
    was possible or not. The answer in its view would not depend
    on the classification. 
    Id. at 578.
                                   18
    As the majority points out, legal authority (as opposed to
    the facts essential for application of the impossibility
    exception) was not formally at issue. But the court’s idea of
    what a “conflict” might be is radically different from the
    majority’s here. In upholding the FCC’s assertion of
    irreconcilable conflict if it later chose to classify VoIP as an
    information service, the court pointed to the agency’s “long-
    standing,” “market-oriented policy” of “nonregulation of
    information services” and upheld the FCC’s bottom line:
    “[A]ny state regulation of an information service conflicts with
    the federal policy of nonregulation.” 
    Id. at 580.
    The decision
    seems wholly incompatible with the majority’s idea that there
    is no Commission preemptive authority vis-à-vis a service
    located under Title I (with the narrow exception of regulatory
    authority expressly made applicable to Title I, such as that of
    § 257).
    The majority says the agency did not adequately flesh out
    these arguments in the 2018 Order or in its briefing here.
    Flattered as I am at the thought that I deserve credit for all or
    most of the thinking in this opinion, it isn’t so.
    As I do, the 2018 Order’s section on preemption views the
    Commission as adopting an affirmative “federal regulatory
    regime” of deregulation, a regulatory regime that can only find
    its roots in the Commission’s authority to classify the Internet
    under Title I or Title II. 2018 Order ¶ 194; see also, e.g., 
    id. (describing a
    “federal regulatory scheme”). As I do, the 2018
    Order argues that this “affirmative policy of deregulation is
    entitled to the same preemptive effect as a federal policy of
    regulation.” 
    Id. ¶ 194
    (second emphasis added). The 2018
    Order also highlights the incongruity between finding an
    implied preemptive power when the Commission adopts an
    intrusive Title II regime but not when it adopts a national
    deregulatory framework. See 
    Id. ¶ 204
    (“It would be
    incongruous if state and local regulation were preempted when
    19
    the Commission decides to forbear from a provision that would
    otherwise apply, or if the Commission adopts a regulation and
    then forbears from it, but not preempted when the Commission
    determines that a requirement does not apply in the first
    place.”). It thus directly assails the key asymmetry on which
    the majority’s opinion entirely depends—the notion that for
    affirmative regulation, preemptive power may be implied, but
    for a lawfully adopted deregulatory regime it must be stated by
    Congress expressly. And as I do, the 2018 Order notes that “no
    express authorization or other specific statutory language is
    required for the Commission to preempt state law.” 
    Id. ¶ 204
    & n. 749 (citing City of New York v. FCC, 
    486 U.S. 57
    (1988)).
    To continue would tax the reader’s patience, but the similarities
    do not end there. No matter how you slice it, the Commission
    rejected—and asserted ample grounds for doing so—the
    majority’s novel notion that for an intrusive regulatory regime
    an agency’s preemptive power can be inferred, while a
    deregulatory regime is a Cinderella-like waif, and can be
    protected from state interference only if Congress expressly
    reaches out its protective hand.
    Moreover, even if the Commission had not laid this
    foundation below, the majority is mistaken in its assumption
    that our obligation to “judge the propriety of [agency] action
    solely by the grounds invoked by the agency,” Sec. & Exch.
    Comm’n v. Chenery Corp., 
    332 U.S. 194
    , 196 (1947) (Chenery
    II); see also Sec. & Exch. Comm’n v. Chenery Corp., 
    318 U.S. 80
    , 87 (1943) (Chenery I), prevents our independent analysis of
    the legal issues undergirding preemptive authority. Chenery
    prevents a court from upholding agency action based on “de
    novo factual findings or independent policy judgments better
    left to agency experts.” Sierra Club v. Fed. Energy Regulatory
    Comm’n, 
    827 F.3d 36
    , 49 (D.C. Cir. 2016); see Canonsburg
    Gen. Hosp. v. Burwell, 
    807 F.3d 295
    , 305 (D.C. Cir. 2015). But
    that principle does not apply when the issue turns on a purely
    legal question, such as, here, “our interpretation of [a statute]
    20
    and binding Supreme Court precedent.” See Sierra 
    Club, 827 F.3d at 49
    .
    Nor do the majority’s concerns about the Commission’s
    briefing hold water. The Commission noted that it had
    substituted “a light-touch regulatory regime under Title I for
    the utility-style Title II regulations that had been adopted in
    2015,” and that this light-touch regime could only survive if it
    preempted state law. FCC Br. 111. The Commission noted
    that its authority to classify supplied authority to preempt. See
    
    id. at 115
    (“[T]o the extent the Commission could have read
    any ambiguous provisions of the Communications Act to give
    it authority to retain the former rules [i.e., persist in wielding
    the regulatory authorities supplied by Title II], the
    Commission’s decision not to do so . . . supports preemption of
    state or local efforts to reinstate those requirements.”). On
    appeal, as in the 2018 Order, the Commission attacked the
    conclusion “that the Commission’s determination that
    broadband Internet access is an information service . . .
    deprived it of the power to preempt contrary state regulations.”
    
    Id. at 124.
    And the Commission argued that its “federal
    decision to deregulate preempts contrary state regulatory
    efforts just the same as a federal decision to regulate,” 
    id. at 130—again
    an assault on the linchpin of the majority’s ruling:
    asymmetry. It would be the height of formalism to fault the
    Commission because, despite making all the correct moves, it
    didn’t precisely enough (at least for the majority) articulate the
    link between its authority to adopt a deregulatory regime under
    Title I and its implied power to protect that regime.
    Towards the end, though never acknowledging the
    Commission’s finding that an internet service provider
    “generally could not comply with state or local rules for
    intrastate communications without applying the same rules to
    interstate communications,” 2018 Order ¶ 200, the majority
    hints that through case-by-case litigation of conflict
    21
    preemption, the Commission might be able over the years to
    obtain relief against some state impositions of regulation
    inconsistent with the Commission’s deregulatory scheme. Maj.
    op. 142–43 & n.4.
    Though the majority never says so as explicitly, some of
    its concern appears to stem from the preemption directive’s
    scope—its painting with (as they see it) too broad a brush. See,
    e.g., 
    id. at 135.
    I disagree that the 2018 Order sweeps too
    broadly; tellingly, the majority offers no examples of possible
    state rules, preempted by the Order’s language, that would not
    thwart the Commission’s policy objectives. Even if it did,
    though, that is no reason to vacate the operative portion of the
    order now. Rather, we should wait until a concrete case of
    alleged overreach presents itself, at which point the party
    adversely affected by preemption of the state law may
    challenge the preemption directive as applied in that case. See
    Weaver v. Fed. Motor Carrier Safety Admin., 
    744 F.3d 142
    ,
    145 (D.C. Cir. 2014) (“[W]hen an agency seeks to apply the
    rule, those affected may challenge that application on the
    grounds that it conflicts with the statute from which its
    authority derives.” (quotation omitted)).
    In any event, the majority’s view of preemption seems to
    render any conflict unimaginable (other than a conflict with the
    Commission’s affirmative exercise of authority under § 257).
    In the majority view, preemption is utterly dependent on the
    Commission’s affirmative regulatory authority and cannot
    depend on its authority to apply a deregulatory regime to
    broadband.     Although the majority says that “conflict
    preemption” can apply against a state law that “stands as an
    obstacle to the accomplishment and execution of the [federal
    law’s] full purposes and objectives,” Maj. op. 143 n.4, this
    would be of no use to the Commission: The majority rejects
    the idea that the Commission has exercised authority as to
    which, say, California’s enforcement of a Title II equivalent
    22
    could “stand[] as an obstacle.” In the majority’s view, when
    the Commission adopts a deregulatory regime under Title I,
    there’s no there there.
    Similarly, the majority’s suggestion that it isn’t really
    eviscerating the 2018 Order—it says a Commission
    explanation of “how a state practice actually undermines the
    2018 Order” would enable it to invoke conflict preemption,
    Maj. op. 142–43—magically coexists with its complete
    disregard of the Commission’s explanation in ¶ 200 of the way
    contrary state regulation would be impossible to exclude from
    the interstate market, and with California’s legislation adopting
    an equivalent of Title II (see p. 1 above). Of course no one
    wants the majority to decide a case not before it; but if the
    handwaving toward conflict preemption is to mean anything, it
    requires a vision of a Commission exercise of power with
    which some state regulation could actually conflict. This the
    majority denies absolutely.
    Rather, the majority insists that power to preempt (indeed
    the Commission’s “jurisdiction,” but see 47 U.S.C. § 152(a))
    depends either on the Commission’s “express and expansive
    authority” “to regulate certain technologies,” Maj. op. 124, or
    on “ancillary authority.” The latter in turn requires that the
    Commission’s action be “reasonably ancillary to the
    Commission’s effective performance of its statutorily
    mandated responsibilities,” 
    id., which are
    exclusively its
    responsibilities under Title II, III, at VI of the Act, see also
    
    Comcast, 600 F.3d at 654
    . There is no room in this concept for
    authority to establish a regulatory regime for broadband as an
    information service—meaning, given the extreme paucity of
    affirmative regulatory authority under Title I, a highly
    deregulatory regime. For the majority, the observation that by
    “reclassifying broadband as an information service, the
    Commission placed broadband outside of its Title II
    jurisdiction,” Maj. op. 124, is pretty much the end of the game.
    23
    The majority conspicuously never offers an explanation of how
    a state regulation could ever conflict with the federal white
    space to which its reasoning consigns broadband.
    * * *
    I pause to make an entirely unrelated observation. The
    petitioners advance a bevy of attacks against the Commission’s
    conclusion that the market for broadband internet is fairly
    competitive—attacks that the majority correctly dismisses. See
    Part V.B.2. But the Commission’s case is stronger than the
    majority lets on:        The petitioners never contest the
    Commission’s findings on market concentration as measured
    by the familiar HHI for residential fixed broadband service.
    2018 Order ¶ 132. Even the HHI for the fastest speed category
    (25 Mbps down and 3 Mbps up) “meets the Department of
    Justice . . . designation of ‘moderately concentrated’” (2,208,
    with the DOJ range being 1500 to 2500). 2018 Order ¶ 132 &
    n.478. Those findings, which though doubtless subject to
    contextual analysis have gone uncriticized by petitioners, seem
    highly relevant and deserving of mention.
    * * *
    My colleagues and I agree that the 1996 Act affords the
    Commission authority to apply Title II to broadband, or not.
    Despite the ample and uncontested findings of the Commission
    that the absence of preemption will gut the Order by leaving all
    broadband subject to state regulation in which the most
    intrusive will prevail, see above pp. 1, 2–3, 5–6, and despite
    Supreme Court authority inferring preemptive power to protect
    an agency’s regulatory choices, they vacate the preemption
    directive. Thus, the Commission can choose to apply Title I
    and not Title II—but if it does, its choice will be meaningless.
    I respectfully dissent.
    

Document Info

Docket Number: 18-1051

Filed Date: 10/1/2019

Precedential Status: Precedential

Modified Date: 10/1/2019

Authorities (63)

United States v. Mead Corp. , 121 S. Ct. 2164 ( 2001 )

allied-signal-inc-v-us-nuclear-regulatory-commission-and-the-united , 988 F.2d 146 ( 1993 )

Pub Ctzn v. FMCS , 374 F.3d 1209 ( 2004 )

Williamson v. Mazda Motor of America, Inc. , 131 S. Ct. 1131 ( 2011 )

Ray v. Atlantic Richfield Co. , 98 S. Ct. 988 ( 1978 )

City of New York v. Federal Communications Commission , 108 S. Ct. 1637 ( 1988 )

MacKey v. Lanier Collection Agency & Service, Inc. , 108 S. Ct. 2182 ( 1988 )

Whitman v. American Trucking Assns., Inc. , 121 S. Ct. 903 ( 2001 )

the-people-of-the-state-of-california-public-service-commission-of-the , 39 F.3d 919 ( 1994 )

people-of-the-state-of-california-public-utilities-commission-of-the-state , 905 F.2d 1217 ( 1990 )

United States v. American Telephone & Telegraph Co. , 552 F. Supp. 131 ( 1983 )

National Cable & Telecommunications Assn. v. Brand X ... , 125 S. Ct. 2688 ( 2005 )

Agostini v. Felton , 117 S. Ct. 1997 ( 1997 )

Chevron U. S. A. Inc. v. Natural Resources Defense Council, ... , 104 S. Ct. 2778 ( 1984 )

Motor Vehicle Mfrs. Assn. of United States, Inc. v. State ... , 103 S. Ct. 2856 ( 1983 )

King v. Burwell , 135 S. Ct. 2480 ( 2015 )

Stephen Thompson v. William P. Clark, Secretary of the ... , 741 F.2d 401 ( 1984 )

Texas Municipal Power Agency v. Environmental Protection ... , 89 F.3d 858 ( 1996 )

alascom-inc-v-federal-communications-commission-and-united-states-of , 727 F.2d 1212 ( 1984 )

We People Foundation, Inc. v. United States , 485 F.3d 140 ( 2007 )

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