Treasure State Resource Industry Ass'n v. Environmental Protection Agency ( 2015 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued September 16, 2015         Decided November 3, 2015
    No. 13-1263
    TREASURE STATE RESOURCE INDUSTRY ASSOCIATION,
    PETITIONER
    v.
    ENVIRONMENTAL PROTECTION AGENCY AND GINA
    MCCARTHY, ADMINISTRATOR, U.S. ENVIRONMENTAL
    PROTECTION AGENCY, RESPONDENTS
    Consolidated with 13-1264, 14-1093, 14-1164
    On Petitions for Review of Actions of the
    United States Environmental Protection Agency
    William W. Mercer argued the cause for petitioner
    Treasure State Resource Industry Association. Douglas A.
    McWilliams argued the cause for petitioner United States
    Steel Corporation. With them on the briefs were John D.
    Lazzaretti, Emily C. Schilling, Marie Bradshaw Durrant, and
    Michael P. Manning.
    Norman J. Mullen, Special Assistant Attorney General,
    Office of the Attorney General for the State of Montana, was
    on the brief for amicus curiae State of Montana in support of
    2
    remedy of reversal urged by petitioner Treasure State
    Resource Industry Association in 13-1263 and 14-1164.
    Amanda Shafer Berman, Attorney, U.S. Department of
    Justice, argued the cause for respondents. With her on the
    brief were John C. Cruden, Assistant Attorney General, and
    Mike Thrift, Counsel, U.S. Environmental Protection Agency.
    Before: GRIFFITH and MILLETT, Circuit Judges, and
    WILLIAMS, Senior Circuit Judge.
    Opinion for the Court filed by Senior Circuit Judge
    WILLIAMS.
    WILLIAMS, Senior Circuit Judge: The Clean Air Act, 42
    U.S.C. §§ 7401-7671q, directs the Environmental Protection
    Agency to establish air concentration levels above which
    certain pollutants may endanger public health and welfare,
    called National Ambient Air Quality Standards (“NAAQS”),
    
    id. §§ 7408-7409.
    On June 22, 2010 EPA exercised this
    authority to issue a new standard for sulfur dioxide, SO2. 75
    Fed. Reg. 35,520/1. The new NAAQS imposes a 1-hour
    ceiling of 75 parts per billion, based on the 3-year average of
    the annual 99th percentile of 1-hour daily concentrations. 
    Id. (Because the
    stringency of the changes derives largely from
    the ways in which compliance is calculated rather than from
    the raw concentration numbers, it is almost impossible to give
    a meaningful statement of the degree by which the standard
    increased stringency. See Sulfur Dioxide (SO2) Primary
    Standards – Table of NAAQS, http://www3.epa.gov/ttn/
    naaqs/standards/so2/s_so2_history.html.) States were then to
    develop state implementation plans (“SIPs”) to guide them in
    imposing requirements on pollution sources in order to
    implement the NAAQS. 42 U.S.C. §§ 7502(c), 7503(a).
    3
    Within two years after a new NAAQS is established
    (extendable as in this case to three for want of adequate data),
    
    id. § 7407(d)(1)(B)(i),
    EPA must designate all parts of the
    country as being in “attainment,” in “nonattainment,” or
    “unclassifiable” with respect to the air quality standards, 
    id. § 7407(d)(1)(A).
    “Nonattainment” areas either fail to satisfy
    the NAAQS themselves or contribute to pollution in another
    area that does not satisfy the NAAQS. “Attainment” areas
    both satisfy the NAAQS and do not contribute to
    nonattainment status for another area. In “unclassifiable”
    areas, EPA lacks adequate information to make a
    determination either way. 
    Id. § 7407(d)(1)(A)(i)-(iii).
    On August 5, 2013 EPA designated 29 areas as not
    meeting its new SO2 standards. Air Quality Designations for
    the 2010 Sulfur Dioxide (SO2) Primary National Ambient Air
    Quality Standard, 78 Fed. Reg. 47,191/3 (“Final Rule”). Each
    of the two petitioners now before us, Treasure State Resource
    Industry Association and United States Steel Corporation,
    challenges one of these 29 designations: the Association
    attacks the one for part of Yellowstone County, Montana, and
    U.S. Steel challenges the one for part of Wayne County,
    Michigan. Each sought reconsideration by EPA,
    unsuccessfully. 79 Fed. Reg. 18,248/3 (Apr. 1, 2014); 79 Fed.
    Reg. 50,577/3 (Aug. 25, 2014).
    We deny the petitions for review. Except insofar as both
    are attacks on EPA’s August 2013 designations with respect
    to the 2010 SO2 NAAQS, the two claims have virtually
    nothing in common. We take Montana first, then Michigan.
    * * *
    The Association is “a trade association comprised of
    natural resource industries and associations, labor unions,
    consulting firms and law firms, and recreation organizations
    4
    located throughout Montana.” Petitioners’ Br. iii. Its
    standing is clear and uncontested; its members are located
    within the nonattainment area and are subject to regulations
    resulting from the designation. The Association’s primary
    arguments are: (1) that the data on which EPA relied were so
    unreliable that its reliance was arbitrary and capricious, 42
    U.S.C. § 7607(d)(9)(A), and (2) that EPA’s application of the
    Act was retroactive within the meaning of Landgraf v. U.S.I.
    Film Products, 
    511 U.S. 244
    (1994), and thus, there being no
    clear congressional intent to authorize retroactivity, not in
    accord with the statute.
    The Association claims that EPA failed to follow its
    regulations because Montana, which collected the monitoring
    data, had an “outdated” Quality Assurance Project Plan
    (“QAPP”) for data collection. In particular, EPA regulations
    require that states have a QAPP that
    ensure[s] that the monitoring results: (a) Meet a well-
    defined need, use, or purpose; (b) Provide data of
    adequate quality for the intended monitoring objectives;
    (c) Satisfy stakeholder expectations; (d) Comply with
    applicable standards specifications; (e) Comply with
    statutory (and other) requirements of society; and (f)
    Reflect consideration of cost and economics.
    40 C.F.R. § Pt. 58, App. A. Although the Association says
    that Montana’s QAPP was “outdated” because it was
    developed in 1996, it identifies only one respect in which
    Montana’s failure to adjust the QAPP might have undermined
    its usefulness or accuracy. Specifically it claims that the 1996
    QAPP was aimed at an obsolete NAAQS standard, seeking
    “to measure a standard set at more than six times the 2010
    SO2 NAAQS and [it therefore] contains sub-optimal
    equipment settings, range levels, and monitoring guidance”
    for measuring satisfaction of the new NAAQS. Petitioners’
    5
    Br. 22. We can easily imagine a situation where a calibration
    aimed at a different ambient pollution level would lead to
    such questionable readings that agency acceptance of the data
    would be arbitrary and capricious. But the Association
    presents no evidence that the calibration to a prior standard
    here has actually led, or was likely to lead, to faulty
    measurement. In fact the record points the other way.
    Montana conducted numerous audits of the monitor at levels
    lower than the new standard, which showed the monitor’s
    ability to record data properly at that level. There was nothing
    unreasonable in EPA’s determination that the data from the
    monitor were “robust enough to be reliable” for the 2010
    NAAQS. Responses to Significant Comments on the State
    and Tribal Designation Recommendations for the 2010 Sulfur
    Dioxide National Ambient Air Quality Standards (NAAQS)
    (July 2013) (“Responses to Comments”) at 45, Joint Appendix
    (“J.A.”) 431.
    The Association’s last data-quality claim is that EPA
    inappropriately applied a “weight of evidence” standard in its
    evaluation of the air quality monitoring data. Specifically, it
    says, EPA’s regulation requiring use of the “weight of
    evidence” was promulgated only weeks before comments
    were due on EPA’s proposed SO2 designations and well after
    issuance of the new NAAQS standard. 78 Fed. Reg. 3,086,
    3,283/3-3,284/1 (Jan. 15, 2013). Given this timing, the
    Association claims that the use of the new “weight of
    evidence” standard was post hoc. But in its response to the
    Association’s petition for reconsideration EPA observed that
    in promulgating the standard it had merely codified its long-
    established practice in review of data quality, EPA Denial
    Letter to Treasure State at 6, J.A. 302, and the Association
    offers only lame arguments to refute that contention.
    As to retroactivity, the Association’s argument turns on
    the fact that EPA used data from as far back as 2009 to make
    6
    the nonattainment designation under the June 2010 SO2
    NAAQS regulation. Thus it imposed special regulatory
    burdens on parties in Yellowstone County as a direct result of
    activities that took place in 2009, and the first half of 2010,
    before promulgation of the June 2010 NAAQS rule. The
    regulatory burdens do not flow instantly from the
    nonattainment designation, but they flow ineluctably.
    Designation of an area as nonattainment triggers an obligation
    for the state within which the area is located to modify its SIP
    (or create one), with the goal of bringing the area into
    attainment. To that end the SIP must require “all reasonably
    available control measures as expeditiously as practicable
    (including such reductions in emissions from existing sources
    in the area as may be obtained through the adoption, at a
    minimum, of reasonably available control technology).” 42
    U.S.C. § 7502(c)(1). And the SIP also must impose special
    permitting requirements on firms proposing construction of a
    new source or modification of an existing one, 
    id. § 7502(c)(5);
    the new or modified source must comply “with
    the lowest achievable emission rate,” 
    id. § 7503(a)(2).
    Thus
    the challenged nonattainment designation leads to a regulatory
    burden on parties in nonattainment areas such as the
    Association’s members.
    The Act and EPA’s enforcement strategy made it highly
    likely that data pre-dating the final adoption of the new
    NAAQS would be critical in causing some areas to be
    designated nonattainment and to incur those burdens.
    Combining to make that probable are (1) EPA’s decision to
    measure compliance with the new NAAQS standard by a 3-
    year average of various 1-hour readings, (2) the requirement
    that EPA make its final designations within three years of
    promulgation, 42 U.S.C. § 7407(d)(1)(B)(i), and (3)
    conventional process delays and a general desire to use full
    calendar years. The Association does not, however, challenge
    the three-year averaging rule itself. Rather, it attacks the
    7
    actual designation in August 2013, which because of these
    features in fact drew on data antedating the new NAAQS
    standard.
    The Supreme Court will refuse “to give retroactive effect
    to statutes burdening private rights unless Congress ha[s]
    made clear its intent.” 
    Landgraf, 511 U.S. at 270
    . (The due
    process clause also may place limits on retroactive burdens,
    see, e.g., Usery v. Turner Elkhorn Mining Co., 
    428 U.S. 1
    (1976), but is not in play here.) We have already found, in a
    case involving a party’s attempt to have a nonattainment
    designation made effective before EPA actually issued the
    designation, that the sections of the Act relating to
    nonattainment “contain no language suggesting that Congress
    intended to give EPA the unusual ability to implement rules
    retroactively.” Sierra Club v. Whitman, 
    285 F.3d 63
    , 68 (D.C.
    Cir. 2002). 1 Thus a finding that EPA’s Final Rule had
    retroactive effect (within the meaning of Landgraf) would
    render it impermissible under the attainment designation
    provisions of the Act.
    Although Landgraf requires that courts evaluating a rule
    for retroactivity ask “whether the new provision attaches new
    legal consequences to events completed before its enactment,”
    that is far from the end of the story; “[a] statute does not
    operate ‘retrospectively’ merely because it is applied in a case
    arising from conduct antedating the statute’s enactment.” 511
    1
    Furthermore, the APA prohibits retroactive rulemaking. See
    Georgetown Univ. Hosp. v. Bowen, 
    821 F.2d 750
    , 756-58 & n.11
    (D.C. Cir. 1987), aff'd, 
    488 U.S. 204
    (1988) (citing 5 U.S.C.
    § 551(4), defining a “rule” as “an agency statement of general or
    particular applicability and future effect” (emphasis added)). We
    said in Celtronix Telemetry, Inc. v. FCC, 
    272 F.3d 585
    , 588 (D.C.
    Cir. 2001), that the “tests formulated in Landgraf are indeed
    pertinent to the APA 
    issue.” 8 U.S. at 269-70
    . The most concrete factors are “considerations
    of fair notice, reasonable reliance, and settled expectations,”
    
    id. at 270
    (citations omitted), to which we now turn.
    The typical form of unfairness that retroactivity may
    wreak is by radically undermining the value of costs that
    parties incurred in reasonable reliance on continuation of the
    status quo, or by discouraging parties from incurring costs that
    by virtue of the new rule might have yielded net savings. An
    example of the first would be decisions to build or improve a
    plant for compliance with the old standards—changes that as a
    result of the new rule and the nonattainment designation may
    require costly retrofitting. A cost that knowledge of the new
    rule and nonattainment classification might have encouraged
    would be building to the resulting specifications—again in
    order to avoid retrofitting costs that would stem from an
    improvement that complied merely with the old regulatory
    landscape. (A further advantage would have been the chance
    of avoiding nonattainment designation—and its attendant
    regulatory entanglement—by improving the area’s overall air
    quality, but it’s hard to imagine a single source owner’s
    employing such a strategy, which could easily be undermined
    by the conduct of other source owners.) Here, in fact, the
    record discloses no evidence of Yellowstone County source
    owners’ taking any such steps in reliance on the old standards.
    The absence of such evidence is hardly surprising in light
    of the established rules governing nonattainment designation
    and the ample public notice of the impending change in the
    NAAQS. The Act itself requires that “at five-year intervals
    . . . , the [EPA] Administrator shall complete a thorough
    review of” the NAAQS and revise them as appropriate. 42
    U.S.C. § 7409(d)(1). Moreover, these changes have moved
    generally toward greater stringency over the life of the Act.
    See       links  to    historical   NAAQS        standards     at
    http://www3.epa.gov/ttn/naaqs/criteria.html.               More
    9
    specifically, EPA had long given notice of the prospect of
    more stringent SO2 regulations. (See the review of the history
    in 75 Fed. Reg. at 35,522/2-35,523/3.) As early as 1988, it
    requested public comment on a new 1-hour standard similar to
    the one that was adopted in 2010. 53 Fed. Reg. 14,926/1
    (Apr. 26, 1988). In 1998, this court held that a later decision
    not to revise the standards had been inadequately reasoned.
    American Lung Association v. EPA, 
    134 F.3d 388
    (D.C. Cir.
    1998). EPA embarked on further data collection, and in 2006
    initiated the review of its SO2 air quality criteria, 71 Fed. Reg.
    28,023/2 (May 15, 2006), a review that culminated in the
    2010 standards. While of course divining the specifics of
    EPA’s decision would have been impossible, firms had years
    of notice that more stringency was possible. Accordingly, any
    investment decisions taken in the expectation of stasis would
    not have qualified as having been made in reasonable reliance
    on preexisting law.
    Finally, the Association challenges EPA’s denial of its
    reconsideration petition. 79 Fed. Reg. 50,577/3. Its main
    argument in its petition for reconsideration was that if EPA
    had considered new data from 2013 it would have found that
    Yellowstone County was no longer out of attainment. Petition
    for Reconsideration or Repeal of a Portion of the Final Rule
    and Request for an Administrative Stay Pending Agency
    Proceedings at 7-8, J.A. 332-33. There are at least two
    problems with this claim. First, the 2013 data were not
    complete or certified at the time that the Association
    suggested that they be used. 
    Id. at 6
    n.28. And using only
    data for 2010-2012 would not have undone the county’s
    violation of the NAAQS. Responses to Comments at 51, J.A.
    437.
    Second, a ruling that an agency’s disregard of data
    gathered after final agency action was arbitrary and capricious
    could make it difficult for many actions to go into effect.
    10
    Since new data may continue to pour in, reconsideration based
    on such data could materially delay arrival at a final decision.
    And the Act clearly did intend to produce final rules, since
    “Congress imposed deadlines on EPA and thus clearly
    envisioned an end to the designation process.” Catawba
    County, N.C. v. EPA, 
    571 F.3d 20
    , 51 (D.C. Cir. 2009).
    Further, parties in areas designated nonattainment aren’t
    without recourse: Congress explicitly provided a re-
    designation process in 42 U.S.C. §§ 7407(d)(3), 7505a.
    Rejecting the petition for reconsideration, EPA explained this
    recourse, as well as the possibility of submitting a request for
    a “clean data determination,” which “would suspend certain
    nonattainment planning requirements.” Treasure State Den.
    Ltr. at 22-23, J.A. 318-19. Given the difficulties arising from
    reconsideration of new data and the availability of other
    avenues of redress, it was reasonable for EPA to deny
    reconsideration of this claim.
    The Association’s remaining arguments, alleging data
    quality deficiencies that it claims the agency ignored in
    finalizing the Montana designation, were not specifically
    raised until reconsideration and were then fully and
    reasonably disposed of by EPA in its denial.
    We therefore uphold the Final Rule’s designation of part
    of Yellowstone County as nonattainment.
    * * *
    We turn now to the Michigan designation. U.S. Steel has
    a plant located in the nonattainment portion of Wayne County
    and does not dispute the designation of that portion as
    nonattainment. But it argues that it was not reasonable for
    EPA to designate part of Wayne County as nonattainment
    without simultaneously making the same determination for at
    least that portion of neighboring Monroe County that includes
    11
    the Monroe Coal-Fired Power Plant (the “Monroe plant”).
    Pointing to the statutory criteria for nonattainment
    designation, § 107(d)(1)(A)(i), 42 U.S.C. § 7407(d)(1)(A)(i),
    which require inclusion of any area “that contributes to
    ambient area quality in a nearby area that does not meet” the
    NAAQS, U.S. Steel says that SO2 from the Monroe plant
    significantly contributes to SO2 levels in Wayne County and
    that therefore designation of Wayne County without the
    Monroe plant violates the statute and is arbitrary and
    capricious.
    U.S. Steel must first establish its standing by showing
    satisfaction of the now-standard elements of injury in fact,
    causation and redressability. Lujan v. Defenders of Wildlife,
    
    504 U.S. 555
    , 560-61 (1992). Once we understand the
    process for remedying nonattainment in an area so designated,
    it is apparent that U.S. Steel meets those requirements.
    U.S. Steel has suffered an injury in fact that is “concrete
    and particularized” and “actual or imminent, not ‘conjectural’
    or ‘hypothetical,’” 
    id. at 560
    (citations omitted), because the
    designation of Wayne County as nonattainment without the
    inclusion of the Monroe plant area subjects it to a markedly
    higher risk of facing costly (or more costly) regulatory
    pollution controls. EPA claims that there is little risk of such
    an injury, since Michigan can elect to address nonattainment
    in Wayne County by “impos[ing] emission reduction
    requirements on all facilities that it determines are, in fact,
    contributing to nonattainment.” Respondents’ Br. 40. Thus,
    says EPA, the burden of reducing pollution could be shared
    between U.S. Steel and the Monroe plant regardless of
    whether the Monroe plant is included in the nonattainment
    area. EPA’s contention is a considerable oversimplification.
    The Act gives a kind of primacy to reductions from
    sources in the nonattainment area itself, and we have read it as
    12
    sharply prioritizing reductions inside the nonattainment area.
    Speaking of the SIP required for a nonattainment area, the Act
    provides:
    (1) In general
    Such plan provisions shall provide for the implementation
    of all reasonably available control measures as
    expeditiously as practicable (including such reductions in
    emissions from existing sources in the area as may be
    obtained through the adoption, at a minimum, of
    reasonably available control technology) and shall
    provide for attainment of the national primary ambient air
    quality standards.
    Act, § 172(c)(1), 42 U.S.C. § 7502(c)(1) (emphasis added).
    We considered this provision in NRDC v. EPA, 
    571 F.3d 1245
    (D.C. Cir. 2009), where we reviewed an EPA rule
    defining state SIP obligations for NOx over a 22-state region
    and instituting a cap-and-trade program throughout the region.
    Besides relying on the language of the parenthetical clause in
    § 172(c)(1), NRDC had expressed concern that EPA’s rule
    allowed states to rely on sources not only outside
    nonattainment areas but also on sources “in other states
    hundreds of miles away.” Final Opening Brief of Natural
    Resources Defense Council at 21, NRDC, 
    571 F.3d 1245
    (No.
    06-1045).     We ruled that the parenthetical “calls for
    reductions in emissions from sources in the area; reductions
    from sources outside the nonattainment area do not satisfy the
    requirement.” 
    Id. at 1256.
    And we went on to say that
    satisfaction of § 172(c)(1)’s “reasonably available control
    technology” (“RACT”) mandate must “entail[] at least RACT-
    level reductions in emissions from sources within the
    nonattainment area.” 
    Id. Thus, if
    Monroe County were
    designated nonattainment (and if it is a significant enough
    13
    contributor, as U.S. Steel claims), then the Monroe plant
    would be subject to RACT; without such designation, any
    state pressure for cutbacks at the Monroe plant would be up to
    Michigan (acting, of course, within the constraints of the Act).
    And, while Michigan could impose restrictions on the Monroe
    plant, as EPA assures us, under NRDC the resulting reductions
    would “not satisfy the [§ 172(c)(1) RACT] requirement.” 
    Id. Given that
    understanding of § 172(c)(1), it might seem
    that the cutbacks likely to be imposed on U.S. Steel will be
    the same regardless of whether the Monroe plant is included
    in the nonattainment area. But EPA’s concept of RACT is
    such that inclusion of the Monroe plant (again assuming that
    its contribution to SO2 exceedances in Wayne County is
    significant) would likely reduce the stringency of the RACT
    imposed on U.S. Steel. RACT takes into account “[t]he
    necessity of imposing such controls in order to attain and
    maintain a national ambient air quality standard.” 40 C.F.R.
    § 51.100(o)(1) (2009). Indeed, in its response to comments on
    the regulation targeting U.S. Steel’s SO2 emissions, the State
    of Michigan cites this definition. Proposed SIP, Appendix F:
    Draft     Rule     430     Comments/Responses        at     1-2,
    http://www.deq.state.mi.us/aps/downloads/SIP/SO2SIP.pdf.
    Thus, expansion of the nonattainment area to include another
    seriously contributing source would likely reduce the severity
    of the RACT imposed on U.S. Steel; conversely, EPA’s
    failure to add the Monroe plant area inflicts a substantial risk
    of more severe controls on U.S. Steel, an imminent and non-
    hypothetical injury, redressable by a mandate to include that
    area.
    EPA also argues that its Final Rule is not final within the
    meaning of the APA, 5 U.S.C. § 704, with respect to this
    challenge, because it expressly said that it had not completed
    the designation process for Monroe County. Michigan
    Technical Support Document at 7-8, J.A. 655-56. But this
    14
    misconceives U.S. Steel’s claim, which, to repeat, is that it
    was unlawful to designate Wayne County without
    simultaneously designating the area containing the Monroe
    plant.
    Reaching the merits, however, we find neither a violation
    of the Act nor any arbitrariness in EPA’s action. For its SO2
    rulemaking, EPA issued guidance to the states for making
    their initial recommendations, indicating that “the perimeter
    of a county containing a violating monitor would be the initial
    presumptive boundary for nonattainment areas.” 78 Fed. Reg.
    at 47,195/2. Nothing in the Act or its associated regulations
    prevents EPA from presumptively following county
    boundaries. Recall that the Act defines a nonattainment area
    as “any area that does not meet (or that contributes to ambient
    air quality in a nearby area that does not meet) the national
    primary or secondary ambient air quality standard for the
    pollutant.” 42 U.S.C. § 7407(d)(1)(A)(i). Assuming that the
    portion of Monroe County containing the Monroe plant may
    ultimately be found to contribute to nonattainment in Wayne
    County, nothing in the definition requires a simultaneous
    decision on both counties. (Nor does it require that a single
    area be created. At oral argument EPA counsel told the court
    that in the event of a later nonattainment designation of the
    Monroe plant area because of its contributions to Wayne
    County, “the measuring would ultimately be a collective one
    of [whether] these counties collectively brought
    [non]attainment at the monitoring site in Wayne County.”
    Oral Argument at 58:27.)
    Of course, EPA’s approach could still be arbitrary and
    capricious even in the absence of a statutory or regulatory
    mandate. Under the APA, EPA must “conform to ‘certain
    minimal standards of rationality.’” Small Refiner Lead Phase-
    Down Task Force v. EPA, 
    705 F.2d 506
    , 521 (D.C. Cir. 1983).
    But EPA has offered many reasons that justify its decision to
    15
    defer a decision on Monroe County. Most importantly, there
    was uncertainty over whether pollution from Monroe County
    is, in fact, substantially contributing to air quality in Wayne
    County. The Monroe plant is approximately 54 kilometers
    away from the violating Wayne County monitor. Responses
    to Comments at 27, J.A. 413; Michigan Technical Support
    Document at 6, J.A. 654. Additionally, another monitor
    located between the Monroe plant and the violating Wayne
    County monitor—and significantly closer to the former than
    to the latter—showed no exceedances.              Responses to
    Comments at 28, J.A. 414. Finally, EPA reasonably asserted
    the need for further study on the effect of recently-installed
    emission control scrubbers on the Monroe plant. Michigan
    Technical Support Document at 6, J.A. 654. Given the
    current uncertainty, postponement of the classification of
    Monroe County was not arbitrary and capricious.
    Finally, U.S. Steel’s challenge to the denial of its petition
    for reconsideration fails. In denying that petition, EPA
    thoroughly and reasonably addressed U.S. Steel’s arguments.
    See EPA Denial Letter to U.S. Steel, J.A. 598-610.
    * * *
    The petitions for review of the Final Rule and EPA’s
    denial of petitions for reconsideration are accordingly
    Denied.