Americans for Clean Energy v. Environmental Protection Agency , 864 F.3d 691 ( 2017 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued April 24, 2017                  Decided July 28, 2017
    No. 16-1005
    AMERICANS FOR CLEAN ENERGY, ET AL.,
    PETITIONERS
    v.
    ENVIRONMENTAL PROTECTION AGENCY AND E. SCOTT
    PRUITT, ADMINISTRATOR,
    RESPONDENTS
    E.I. DU PONT DE NEMOURS AND COMPANY, ET AL.,
    INTERVENORS
    Consolidated with 16-1044, 16-1047, 16-1049, 16-1050,
    16-1053, 16-1054, 16-1056
    On Petitions for Review of Final Action of the
    United States Environmental Protection Agency
    Seth P. Waxman argued the cause for petitioners
    Americans for Clean Energy, et al. With him on the briefs were
    Edward N. Siskel, David M. Lehn, Saurabh Sanghvi, Andrew
    R. Varcoe, Gary H. Baise, and Matthew W. Morrison. Mark C.
    Kalpin and Robert J. McKeehan entered appearances.
    2
    David B. Salmons argued the cause for petitioner National
    Biodiesel Board. With him on the briefs were Bryan M. Killian
    and Sandra P. Franco.
    Jerome C. Muys, Jr. was on the brief for amici curiae
    American Soybean Association, et al., in support of petitioners
    Americans for Clean Energy, et al., and National Biodiesel
    Board.
    Robert A. Long, Jr. argued the cause for Obligated Party
    Petitioners on the cellulosic biofuel and biomass-based diesel
    issues. With him on the briefs were Kevin F. King, Stacy R.
    Linden, Thomas A. Lorenzen, Robert J. Meyers, David Y.
    Chung, Richard S. Moskowitz, Thomas J. Perrelli, David W.
    DeBruin, and Matthew E. Price.
    Samara L. Kline argued the cause for Obligated Party
    Petitioners on the point of obligation issue. With her on the
    briefs were Evan A. Young, Shane Pennington, Lisa M. Jaeger,
    Richard Alonso, LeAnn M. Johnson, Albert Ferlo, Thomas J.
    Perrelli, David W. DeBruin, Matthew E. Price, Richard S.
    Moskowitz, and Thomas A. Lorenzen. Krista Hughes and
    Clara G. Poffenberger entered appearances.
    Suzanne Murray, Jeremy Kernodle, and Alec Zacaroli
    were on the brief for amicus curiae Small Retailers Coalition
    in support of Obligated Party Petitioners on the point of
    obligation issue.
    Lee M. Smithyman was on the brief for amicus curiae CVR
    Energy, Inc., in support of Obligated Party Petitioners on the
    point of obligation issue.
    Samara M. Spence, Attorney, U.S. Department of Justice,
    argued the cause for respondent. With her on the brief were
    3
    John C. Cruden, Assistant Attorney General at the time the
    brief was filed, and Lisa M. Bell, Attorney.
    Thomas A. Lorenzen argued the cause for Obligated Party
    Respondent-Intervenors. With him on the brief were Robert J.
    Meyers, David Y. Chung, Richard S. Moskowitz, Robert A.
    Long, Jr., Kevin F. King, Stacy R. Linden, Samara L. Kline,
    Evan A. Young, Shane Pennington, Lisa M. Jaeger, Richard
    Alonso, David W. DeBruin, Thomas J. Perrelli, and Matthew
    E. Price.
    Seth P. Waxman argued the cause for Respondent-
    Intervenors Americans for Clean Energy, et al. With him on
    the brief were Edward N. Siskel, David M. Lehn, Saurabh
    Sanghvi, Andrew R. Varcoe, Gary H. Baise, and Matthew W.
    Morrison.
    Bryan M. Killian, Sandra P. Franco, and Daniel C. Taylor
    were on the brief for intervenors E.I. du Pont de Nemours and
    Company and National Biodiesel Board in support of
    respondent. David B. Salmons entered an appearance.
    Before: BROWN, KAVANAUGH, and MILLETT, Circuit
    Judges.
    Opinion for       the   Court   filed   by   Circuit   Judge
    KAVANAUGH.
    KAVANAUGH, Circuit Judge: The Clean Air Act’s
    Renewable Fuel Program requires an increasing amount of
    renewable fuel to be introduced into the Nation’s transportation
    fuel supply each year. See 
    42 U.S.C. § 7545
    (o). By mandating
    the replacement – at least to a certain degree – of fossil fuel
    with renewable fuel, Congress intended the Renewable Fuel
    4
    Program to move the United States toward greater energy
    independence and to reduce greenhouse gas emissions.
    EPA is the federal agency primarily responsible for
    implementing the Renewable Fuel Program’s requirements.
    Congress has directed EPA to annually publish renewable fuel
    requirements that apply to certain participants in the
    transportation fuel market. In 2015, EPA promulgated a Final
    Rule setting several renewable fuel requirements for the years
    2014 through 2017. In this set of consolidated petitions,
    various organizations, companies, and interest groups
    challenge that EPA Final Rule on a number of grounds. Some
    argue that EPA set the renewable fuel requirements too high.
    Others argue that EPA set the renewable fuel requirements too
    low.
    We reject all of those challenges, except for one: We agree
    with Americans for Clean Energy and its aligned petitioners
    (collectively referred to as “Americans for Clean Energy”) that
    EPA erred in how it interpreted the “inadequate domestic
    supply” waiver provision. We hold that the “inadequate
    domestic supply” provision authorizes EPA to consider supply-
    side factors affecting the volume of renewable fuel that is
    available to refiners, blenders, and importers to meet the
    statutory volume requirements. It does not allow EPA to
    consider the volume of renewable fuel that is available to
    ultimate consumers or the demand-side constraints that affect
    the consumption of renewable fuel by consumers. We
    therefore grant Americans for Clean Energy’s petition for
    review of the 2015 Final Rule, vacate EPA’s decision to reduce
    the total renewable fuel volume requirements for 2016 through
    use of its “inadequate domestic supply” waiver authority, and
    remand the rule to EPA for further consideration in light of our
    decision. We otherwise deny the petitions for review.
    5
    I
    A
    In 2005, Congress passed and President George W. Bush
    signed the Energy Policy Act. Pub. L. No. 109-58, 
    119 Stat. 594
     (2005). Among other things, that Act established the Clean
    Air Act’s Renewable Fuel Program. 
    Id.
     § 1501, 119 Stat. at
    1067-76 (codified as amended at 
    42 U.S.C. § 7545
    (o)). In
    2007, Congress and President Bush amended the Renewable
    Fuel Program as part of the Energy Independence and Security
    Act. See Pub. L. No. 110-140, §§ 201-202, 
    121 Stat. 1492
    ,
    1519-28 (2007) (codified at 
    42 U.S.C. § 7545
    (o)). As
    amended, the Renewable Fuel Program requires that increasing
    volumes of renewable fuel be introduced into the Nation’s
    supply of transportation fuel each year. Congress enacted those
    requirements in order to “move the United States toward
    greater energy independence and security” and “increase the
    production of clean renewable fuels.” 
    Id.
     preamble, 121 Stat.
    at 1492. Congress has vested EPA with primary responsibility
    for administering the Renewable Fuel Program.
    As relevant here (and at the risk of oversimplification),
    there are six categories of actors in the renewable fuel market:
    (i) refiners, who manufacture conventional gasoline and diesel;
    (ii) renewable fuel producers, who produce fuels generated
    from renewable biomass; (iii) importers, who import
    conventional gasoline, diesel, and renewable fuels;
    (iv) blenders, who mix renewable fuels with conventional
    gasoline and diesel to create blends of more energy-efficient
    transportation fuel for use in vehicles; (v) retailers, who
    purchase the blended transportation fuel and sell it to
    consumers at gas stations; and (vi) consumers, who purchase
    transportation fuel for their vehicles at gas stations. Some
    actors in the market are vertically integrated, meaning that a
    6
    refiner, for example, may also operate blending facilities or
    fueling stations. Many market actors are not vertically
    integrated, however.
    The Renewable Fuel Program statute contemplates that
    certain participants in the transportation fuel market – namely,
    “refineries,” “blenders,” and “importers” – will be required to
    satisfy annual “renewable fuel obligation[s].” 
    42 U.S.C. § 7545
    (o)(3)(B)(ii). To date, however, EPA has applied the
    renewable fuel obligations only to refiners and importers – not
    to blenders. See 
    40 C.F.R. § 80.1406
    (a)(1). When we refer to
    “obligated parties” in this opinion, we are referring to refiners
    and importers. To satisfy the renewable fuel obligations, each
    refiner and importer must ensure that a certain amount of
    renewable fuel is introduced into the Nation’s transportation
    fuel supply. Each refiner and importer’s renewable fuel
    obligation varies depending on how much fossil-based gasoline
    or diesel fuel it produces or imports.
    The renewable fuel obligations applicable to refiners and
    importers mandate the introduction of four categories of
    renewable fuel into the transportation fuel supply. Those
    categories are: (i) cellulosic biofuel; (ii) biomass-based diesel;
    (iii) advanced biofuel; and (iv) total renewable fuel. 
    42 U.S.C. § 7545
    (o)(2)(B)(i)(I)-(IV). Those four fuel categories vary
    with respect to the renewable biomass sources from which they
    are derived and their greenhouse gas emissions. See 
    id.
    § 7545(o)(1)(B), (D), (E), (J) (defining “advanced biofuel,”
    “biomass-based diesel,” “cellulosic biofuel,” and “renewable
    fuel”). The statutory categories of fuel types are “nested,”
    meaning that cellulosic biofuel and biomass-based diesel are
    kinds of advanced biofuel, and advanced biofuel in turn is a
    kind of renewable fuel that may be credited toward the total
    renewable fuel obligation. For example, if one million gallons
    of cellulosic biofuel are blended into the fuel supply, the statute
    7
    allows those one million gallons to be credited toward the
    advanced biofuel and total renewable fuel obligations in
    addition to the cellulosic biofuel obligation. See Monroe
    Energy, LLC v. EPA, 
    750 F.3d 909
    , 912 (D.C. Cir. 2014).
    EPA has the responsibility to promulgate rules informing
    obligated parties (refiners and importers) of their annual
    renewable fuel obligations. See 
    42 U.S.C. § 7545
    (o)(3)(B)(i)-
    (ii). To do so, EPA first determines the annual volume
    requirement – also known as the “applicable volume” – for
    each category of renewable fuel. 
    Id.
     § 7545(o)(2)(B). The
    annual volume requirement represents the total volume of
    renewable fuel that must be sold or introduced into the Nation’s
    transportation fuel supply in a given year. See Monroe Energy,
    750 F.3d at 912.
    The statute contains tables that set forth the annual volume
    requirements for each category of renewable fuel. See 
    42 U.S.C. § 7545
    (o)(2)(B)(i). The ranges of years covered by the
    tables differ depending on the fuel type. For those years not
    covered by the statutory tables, EPA must calculate the annual
    volume requirements in the first instance.                See 
    id.
    § 7545(o)(2)(B)(ii). The statute requires EPA to determine
    those volume requirements, “in coordination with the Secretary
    of Energy and the Secretary of Agriculture, based on a review
    of the implementation of the program” as well as an analysis of
    several factors identified by statute. Id. EPA must promulgate
    the volume requirements it establishes for years not covered by
    the statutory tables “no later than 14 months before the first
    year” in which the volume requirements will apply. Id.
    Several statutory provisions guide EPA’s determination of
    the annual renewable fuel volume requirements. Some
    provisions either require or allow EPA to lower the statutory
    8
    volume requirements in specified circumstances. Three of
    those provisions are relevant to this case.
    First, the “general waiver provision” allows EPA to reduce
    the statutory volume requirements in two circumstances. EPA
    may invoke the general waiver provision (i) if EPA determines
    that “implementation of the requirement would severely harm
    the economy or environment of a State, a region, or the United
    States” or (ii) if EPA determines that “there is an inadequate
    domestic supply.” Id. § 7545(o)(7)(A).
    Second, another provision sets forth procedures EPA must
    follow when setting the cellulosic biofuel volume requirement.
    EPA must determine the “projected volume” of cellulosic
    biofuel that will be produced in a given compliance year. Id.
    § 7545(o)(7)(D)(i). If EPA’s projection falls short of the
    statutory volume requirement for cellulosic biofuel, EPA has
    no choice: It “shall reduce” the cellulosic biofuel statutory
    volume requirement to EPA’s volume projection. Id.
    Third, a reduction to the cellulosic biofuel volume
    requirement triggers the “cellulosic waiver provision.” Under
    that provision, when EPA must reduce the cellulosic biofuel
    volume requirement due to its volume projections for cellulosic
    biofuel, the agency “may also reduce” the advanced biofuel and
    total renewable fuel volume requirements “by the same or a
    lesser volume” as the cellulosic biofuel reduction. Id.
    After EPA determines the volume requirements for the
    various categories of renewable fuel, it has a “statutory
    mandate” to “ensure[]” that those requirements are met. Id.
    § 7545(o)(3)(B)(i); Monroe Energy, 750 F.3d at 920. EPA
    fulfills that mandate by translating the annual volume
    requirements into “percentage standards.” The percentage
    standards inform each obligated party of how much renewable
    9
    fuel it must introduce into U.S. commerce based on the
    volumes of fossil-based gasoline or diesel it imports or
    produces. See Monroe Energy, 750 F.3d at 912. The
    percentage standards represent the percentage of transportation
    fuel introduced into commerce that must consist of renewable
    fuel. Id. If each obligated party meets the required percentage
    standards, then the Nation’s overall supply of cellulosic
    biofuel, biomass-based diesel, advanced biofuel, and total
    renewable fuel will meet the total volume requirements set by
    EPA.
    For present purposes, it is sufficient to understand that the
    percentage standards are used by obligated parties (refiners and
    importers) to calculate their individual compliance obligations
    under the Renewable Fuel Program. By statute, EPA is
    required to promulgate the percentage standards for a given
    year no later than November 30 of the preceding calendar year.
    See 
    42 U.S.C. § 7545
    (o)(3)(B)(i).
    Once EPA issues a rule informing obligated parties
    (refiners and importers) of their renewable fuel obligations, it
    is up to the obligated parties to comply with the statute. But
    obligated parties need not themselves introduce renewable fuel
    into transportation fuel to comply with their renewable fuel
    obligations. Rather, to facilitate flexible and cost-effective
    compliance with the Renewable Fuel Program’s requirements,
    Congress directed EPA to establish a “credit program” through
    which obligated parties can acquire and trade credits and
    thereby comply with the statute.             
    Id.
     § 7545(o)(5)
    (capitalization altered); see also Monroe Energy, 750 F.3d at
    912.
    The credits in the trading program established by EPA are
    known as “RINs” – short for “Renewable Identification
    Numbers.” Monroe Energy, 750 F.3d at 913; see also 40
    
    10 C.F.R. § 80.1401
    . To simplify for present purposes, each batch
    of renewable fuel that is produced or imported for use in the
    United States is assigned a unique set of RINs “that correspond
    to the volume of ethanol-equivalent fuel gallons in that batch.”
    Monroe Energy, 750 F.3d at 913. As relevant here, RINs
    ordinarily remain attached to the fuel until the fuel is purchased
    by an obligated party – that is, by a refiner or importer –
    or blended into a transportation fuel.           See 
    40 C.F.R. § 80.1429
    (b)(1)-(2).     At that point, the RINs become
    “separated” from the associated volumes of renewable fuel. 
    Id.
    § 80.1429(b). Once separated, RINs may be retained by the
    party who possesses them or sold or traded on the open RIN
    market.
    Obligated parties (refiners and importers) comply with
    their renewable fuel obligations by accumulating or purchasing
    the requisite number of RINs and then “retiring” the RINs in
    an annual compliance demonstration with EPA. Monroe
    Energy, 750 F.3d at 913 (citing 
    40 C.F.R. § 80.1427
    (a)). If an
    obligated party has more RINs than it needs to meet its
    renewable fuel obligation, the obligated party may sell or trade
    the extra RINs or instead choose to “bank” the RINs for use in
    the next compliance year.           Id.; see also 
    42 U.S.C. § 7545
    (o)(5)(B); 
    40 C.F.R. §§ 80.1425-29
    . RINs “banked” by
    an obligated party for use in the subsequent compliance year
    are known in the industry as “carryover” RINs. If, by contrast,
    an obligated party does not have enough RINs to meet its
    renewable fuel obligation, it may: (i) attempt to purchase any
    RINs it needs on the open RIN market; (ii) use carryover RINs
    it has from the prior year to meet some portion of its obligation;
    or (iii) carry a renewable fuel deficit forward into the next
    compliance year, provided that some conditions are met. See
    
    42 U.S.C. § 7545
    (o)(5)(D); 
    40 C.F.R. § 80.1427
    (b); see also
    Monroe Energy, 750 F.3d at 913.
    11
    B
    In December 2015, EPA promulgated the Final Rule that
    is under review in this case. See Renewable Fuel Standard
    Program: Standards for 2014, 2015, and 2016 and Biomass-
    Based Diesel Volume for 2017, 
    80 Fed. Reg. 77,420
     (Dec. 14,
    2015) (hereinafter Final Rule). The Final Rule, which followed
    a proposed rule issued by EPA in June 2015, established
    volume requirements and the resulting percentage standards for
    the years 2014, 2015, and 2016 for all four categories of
    renewable fuel. See 
    id. at 77
    ,422 tbl.I-1, 77,512 tbl.V.B.3-2.
    The Final Rule also set the biomass-based diesel volume
    requirement for the year 2017. See 
    id. at 77
    ,422 tbl.I-1.
    EPA began its analysis in the Final Rule by explaining the
    competing concerns implicated by the Renewable Fuel
    Program’s requirements. EPA noted that the “fundamental
    objective” of the Renewable Fuel Program “is clear: To
    increase the use of renewable fuels in the U.S. transportation
    system every year through at least 2022.” 
    Id. at 77,421
    .
    According to EPA, Congress’s decision in the statute “to
    mandate increasing and substantial amounts of renewable fuel”
    use “clearly signals” that Congress intended “to create
    incentives to increase renewable fuel supplies and overcome
    constraints in the market.” 
    Id. at 77,423
    .
    EPA noted that the Renewable Fuel Program’s
    requirements were “readily achieved” in the few years after
    Congress created the program in 2005 and amended it in 2007.
    
    Id.
     That was due in large part to the fact that the industry had
    the capacity to produce – and the market had the capacity to
    consume – increasing quantities of ethanol. 
    Id.
     But by 2014,
    ready compliance with the statutory volume requirements was
    no longer possible. That is because the industry hit the “E10
    blendwall”: an “infrastructure and market-related constraint on
    12
    ethanol demand” that “arises because most U.S. vehicle
    engines were not designed to handle gasoline consisting of
    more than 10 percent ethanol.” Monroe Energy, 750 F.3d at
    913-14. Put differently, a few years into the amended
    Renewable Fuel Program, the supply of ethanol was much
    greater than the demand in the market.
    Citing the E10 blendwall problem, EPA explained that
    obligated parties must increasingly rely on “sustained growth
    in the development and use of advanced, non-ethanol
    renewable fuels” (referred to as advanced biofuels) to meet
    their renewable fuel obligations. Final Rule, 80 Fed. Reg. at
    77,423. However, EPA further noted that there were
    significant “real-world constraints” on the market’s ability to
    consume increasing volumes of advanced biofuel. Id. at
    77,422. Those constraints, according to EPA, meant that “the
    amount of renewable fuel that can be produced and imported is
    larger than the volume that can be consumed.” Id. at 77,423.
    EPA cited those demand-side constraints as evidence that
    “[t]rying to force growth” at the rates set by the statutory
    volume requirements would “prove infeasible.” Id.
    In the Final Rule, EPA therefore adopted an approach that
    it believed properly balanced its statutory duty to “drive
    growth” in the supply of renewable fuels with the “real-world
    constraints” on the market’s ability to produce and consume
    renewable fuels. Id. at 77,422-23.
    To start, EPA acknowledged that its Final Rule was late
    given EPA’s statutory deadlines. As relevant here, EPA did
    not meet the statutory deadlines for issuing the 2014 or the
    2015 percentage standards or for issuing any of the biomass-
    based diesel volume requirements. Id. at 77,430. EPA argued
    that, despite its delay, it could permissibly promulgate all of the
    standards and requirements in the Final Rule. See id.
    13
    As support for that conclusion, EPA cited this Court’s
    decisions in National Petrochemical & Refiners Association v.
    EPA, 
    630 F.3d 145
     (D.C. Cir. 2010), and Monroe Energy, LLC
    v. EPA, 
    750 F.3d 909
     (D.C. Cir. 2014). EPA asserted that,
    under those decisions, it had statutory authority to issue the late
    requirements. EPA also asserted that it had exercised its
    statutory authority reasonably by mitigating any unfair or
    retroactive effects of the late rule. EPA claimed that it had done
    so in part by: (i) setting the 2014 and 2015 volume
    requirements based on the actual volumes of renewable fuel
    that were introduced and available for compliance with the
    renewable fuel volume obligations during those years and
    (ii) extending the 2014 and 2015 compliance deadlines. See
    Final Rule, 80 Fed. Reg. at 77,430-31, 77,491-92.
    Because EPA concluded that its lateness did not deprive it
    of authority to act, EPA proceeded with the task of setting the
    annual volume requirements. With respect to cellulosic
    biofuel, EPA projected that the volume of cellulosic biofuel
    produced in the year 2016 would fall short of the statutory
    volume requirement. See id. at 77,508 tbl.IV.F-4. As required
    by the statute, EPA reduced the cellulosic biofuel volume
    requirement to match its projection. See id. at 77,499 tbl.IV-1.
    EPA also promulgated biomass-based diesel volume
    requirements for 2014 through 2017. Id. at 77,422 tbl.I-1; see
    also id. at 77,496 tbl.III-D.5-1.
    EPA also set volume requirements for advanced biofuel
    and total renewable fuel. In approaching that task, EPA
    explained its view that the volume requirements should reflect
    the amount of total renewable fuel and advanced biofuel that
    could be incorporated into the market given the “real-world
    constraints” on both the supply of and demand for renewable
    fuel. Id. at 77,422; see also id. at 77,426, 77,431-39. For
    14
    purposes of determining the available supply of renewable fuel,
    EPA considered only the actual volumes of renewable fuel both
    introduced and available for compliance with the statutory
    requirements in a given year. It did not consider the availability
    of carryover RINs from prior years. See id. at 77,482-87.
    Applying that approach, EPA concluded that “the volumes
    for advanced biofuel and total renewable fuel specified in the
    statute cannot be achieved in 2014, 2015, or 2016.” Id. at
    77,431. EPA therefore relied upon its (i) cellulosic waiver
    authority and (ii) general waiver authority to reduce the volume
    requirements for total renewable fuel and advanced biofuel.
    First, EPA used its cellulosic waiver authority to
    significantly reduce the statutory volume requirements for
    advanced biofuel and total renewable fuel. EPA noted that the
    cellulosic waiver provision grants the agency “broad
    discretion” to decide “when and under what circumstances to
    reduce the advanced and total renewable fuel” volume
    requirements when it reduces the cellulosic biofuel volume
    requirement. Id. at 77,434. EPA determined that, due to
    various constraints on the ability of the market to produce and
    consume non-cellulosic advanced biofuels, non-cellulosic
    advanced biofuels could not entirely make up for the shortfall
    created by EPA’s reduction of the cellulosic biofuel volume
    requirement. See id. at 77,426, 77,434. EPA therefore relied
    on its cellulosic waiver authority to lower the advanced biofuel
    and total renewable fuel volume requirements for the years
    2014, 2015, and 2016. Id. at 77,434, 77,439.
    Second, EPA made additional reductions to the total
    renewable fuel volume requirements using the “inadequate
    domestic supply” prong of its general waiver authority. See id.
    at 77,434-39. EPA noted that it had “never before” interpreted
    the “inadequate domestic supply” provision for purposes of
    15
    deciding whether to reduce a total renewable fuel volume
    requirement. Id. at 77,435. Proceeding with its first-ever
    interpretation, EPA concluded that the phrase “inadequate
    domestic supply” is ambiguous because it “does not specify
    what the general term ‘supply’ refers to.” Id.
    Exercising its authority to resolve that purported
    ambiguity, EPA concluded that the phrase “inadequate
    domestic supply” is best read to refer to “the adequacy of
    supply of renewable fuel” available to “the ultimate
    consumer[s]” of renewable fuel blended into transportation
    fuel. Id. at 77,436. EPA also concluded that its authority to
    determine the adequacy of the renewable fuel “supply” allowed
    the agency to look not only to supply-side factors in the market
    for renewable fuel – such as constraints on the production or
    import of renewable fuel – but also at factors affecting demand
    for renewable fuel by consumers – such as vehicle engine
    warranties and the effectiveness of those businesses marketing
    renewable fuel products. See id. at 77,435, 77,452 tbl.II.E.1-1.
    Analyzing those factors, EPA concluded that the available
    supply of total renewable fuel still fell short of the statutory
    volume requirements, even after those requirements were
    reduced through use of the cellulosic waiver authority. Id. at
    77,439. EPA therefore relied on the “inadequate domestic
    supply” waiver provision to further reduce the 2014, 2015, and
    2016 total renewable fuel volume requirements. Id.
    Below is a table summarizing the total renewable fuel
    volume requirements (in billions of gallons) issued by EPA in
    the Final Rule. For each year, the table lists the statutory
    volume requirements; the reduction to those statutory
    requirements attributable to EPA’s use of the cellulosic waiver
    provision and the general waiver provision; the final volume
    requirements set by EPA; and the total reduction to the
    16
    statutory volume requirements made by EPA through use of its
    waiver authorities.
    Table 1.1 – Total Renewable Fuel Volume Requirements
    (in billions of gallons)
    Total Renewable Fuel Volume Requirements
    Total
    Cellulosic    General
    EPA     Reduction
    Year    Statute    Waiver       Waiver
    Rule      from
    Reduction    Reduction
    Waivers
    2014    18.15       1.08            .79    16.28     1.87
    2015     20.5       2.62            .95    16.93     3.57
    2016    22.25       3.64            .5     18.11     4.14
    Finally, although EPA in the Final Rule focused most of
    its discussion on the volume requirements and percentage
    standards, EPA did note that it had received comments
    regarding the current “point of obligation” – that is, EPA’s
    decision to place the compliance burden on refiners and
    importers, but not blenders. EPA stated its view that those
    comments were “beyond the scope” of the rulemaking because
    EPA “did not propose any changes to the definition of an
    obligated party” nor “seek comment on this issue.” Id. at
    77,431; EPA Response to Comments on Final Rule, at 883
    (Nov. 2015), J.A. 1027. EPA therefore declined to address
    comments related to the point of obligation. See Final Rule, 80
    Fed. Reg. at 77,431.
    17
    C
    Following EPA’s issuance of the Final Rule in December
    2015, a number of parties filed petitions for review in this
    Court. Two petitions – one filed by National Biodiesel Board
    and the other filed by a group of petitioners including
    Americans for Clean Energy – challenge EPA’s Final Rule for
    setting the renewable fuel volume requirements at too low a
    level. From the other direction, a number of petitions – filed
    by a group of obligated parties and industry associations that
    we will call the “Obligated Party Petitioners” – challenge
    EPA’s Final Rule for setting the renewable fuel volume
    requirements at too high a level and for refusing to address the
    proper point of obligation.
    We now consider those petitions and the issues they
    present. The opinion proceeds as follows.
    In Part II, we address Americans for Clean Energy’s
    challenge to EPA’s interpretation of the “inadequate domestic
    supply” waiver provision. We agree with Americans for Clean
    Energy that the term “inadequate domestic supply” refers to the
    supply of renewable fuel available to refiners, blenders, and
    importers to meet the statutory volume requirements. We hold
    that EPA exceeded its authority under the “inadequate
    domestic supply” provision when it interpreted the term
    “supply” to allow it to consider demand-side constraints in the
    market for renewable fuel. We therefore vacate EPA’s
    decision to reduce the total renewable fuel volume
    requirements for 2016 through use of the “inadequate domestic
    supply” waiver authority and remand the rule to the agency for
    further consideration in light of our decision.
    We also consider Americans for Clean Energy’s argument
    that EPA was required to consider “carryover RINs” for
    18
    purposes of determining whether there is an “inadequate
    domestic supply” of renewable fuel. We reject that challenge,
    as we conclude that the statute does not require EPA to consider
    carryover RINs for purposes of the “inadequate domestic
    supply” provision.
    In Part III, we consider the issues arising from EPA’s delay
    in promulgating the Final Rule. First, EPA used actual
    renewable fuel volumes to set the 2014 and 2015 volume
    requirements in order to minimize the hardship to obligated
    parties caused by the late issuance of the Final Rule. In doing
    so, EPA acted reasonably under the circumstances. We
    therefore reject National Biodiesel Board’s and Americans for
    Clean Energy’s arguments to the contrary. Second, EPA’s late
    issuance of the biomass-based diesel volume requirements was
    permissible. Contrary to the arguments of the Obligated Party
    Petitioners, we conclude that EPA had statutory authority to
    issue the late biomass-based diesel volume requirements and
    exercised that authority reasonably.
    In Part IV, we consider and reject the Obligated Party
    Petitioners’ arbitrary and capricious challenges to the 2016
    cellulosic biofuel projections. We conclude that EPA’s
    cellulosic biofuel projection methodology was permissible
    under our precedents and otherwise reasonable and reasonably
    explained.
    In Part V, we consider and reject National Biodiesel
    Board’s contention that EPA violated its statutory authority
    when interpreting and applying the cellulosic waiver provision.
    Based on this Court’s analysis in Monroe Energy, we conclude
    that the text of the cellulosic waiver provision affords EPA
    “broad discretion” to consider a variety of factors – including
    demand-side constraints in the market for advanced biofuel –
    when determining “whether and in what circumstances to
    19
    reduce” volume requirements through use of the cellulosic
    waiver authority. 750 F.3d at 915. We also deny National
    Biodiesel Board’s related arbitrary and capricious challenges
    to EPA’s projection of the volume of advanced biofuel
    “reasonably attainable” in the market in the year 2016. Final
    Rule, 80 Fed. Reg. at 77,427.
    In Part VI, we conclude that we need not resolve whether
    EPA’s failure to address the proper point of obligation in the
    Final Rule necessitates a remand of the rule to the agency.
    II
    We first address whether EPA permissibly interpreted the
    “inadequate domestic supply” prong of its general waiver
    authority when lowering total renewable fuel volume
    requirements for the years 2014, 2015, and 2016. Americans
    for Clean Energy argues that EPA’s interpretation of the phrase
    “inadequate domestic supply,” under which EPA considered
    demand-side factors affecting the amount of renewable fuel
    available to consumers, is inconsistent with the statute. We
    agree with Americans for Clean Energy.
    Americans for Clean Energy also contends that EPA is
    required to consider carryover RINs for purposes of
    determining whether there is an “inadequate domestic supply”
    of renewable fuel during a given year. On that point, we side
    with EPA and conclude that the agency permissibly declined to
    consider carryover RINs for purposes of determining the
    available supply of total renewable fuel for the years 2014,
    2015, and 2016.
    20
    A
    1
    The Renewable Fuel Program requires increasing volumes
    of renewable fuel to be introduced into the Nation’s
    transportation fuel market. That market consists of a number
    of actors that play a part in delivering transportation fuel to
    consumers for use in their vehicles. There are refiners and
    importers, who manufacture and import conventional fossil-
    based gasoline and diesel fuels. In addition, there are biofuel
    producers, who manufacture the various categories of
    renewable fuel mandated by the Renewable Fuel Program.
    There are fuel blenders, who purchase fossil-based fuels and
    renewable fuels and mix the two together to create blended
    transportation fuels. There are retail fueling stations, who
    purchase blended transportation fuels and sell those fuels to
    consumers. And there are the consumers, who purchase
    transportation fuels for use in their vehicles. Although some
    market participants are vertically integrated – a refining
    company may also operate blending facilities or fueling
    stations, for example – many are not.
    In enacting the Renewable Fuel Program, Congress chose
    not to place any compliance burdens on the fueling stations or
    consumers of transportation fuel. Instead, the statute allows
    EPA to designate three categories of upstream market
    participants – “refineries,” “blenders,” and “importers” – as
    “obligated parties” responsible for ensuring that the renewable
    fuel volume requirements are met.                   
    42 U.S.C. § 7545
    (o)(3)(B)(ii)(I). To date, EPA has applied the renewable
    fuel obligations only to refiners and importers of fuel – not to
    blenders. See 
    40 C.F.R. § 80.1406
    (a)(1). By requiring
    upstream market participants such as refiners and importers to
    introduce increasing volumes of renewable fuel into the
    21
    transportation fuel supply, Congress intended the Renewable
    Fuel Program to be a “market forcing policy” that would create
    “‘demand pressure’ to increase consumption” of renewable
    fuel. Final Rule, 80 Fed. Reg. at 77,423; Monroe Energy, LLC
    v. EPA, 
    750 F.3d 909
    , 917 (D.C. Cir. 2014) (quoting
    Regulation of Fuels and Fuel Additives: 2013 Renewable Fuel
    Standards, 
    78 Fed. Reg. 49,794
    , 49,821 (Aug. 15, 2013)).
    Refiners and importers demonstrate their compliance with
    the statute by accumulating the requisite number of renewable
    fuel credits, known as RINs. Each set of RINs corresponds to
    a batch of renewable fuel produced or imported for use in the
    United States. As relevant here, RINs generally remain
    attached to a volume of fuel until the fuel is: (i) purchased by
    an obligated party – that is, by a refiner or importer – or
    (ii) blended into a transportation fuel by a blender. 
    40 C.F.R. § 80.1429
    (b)(1)-(2). When either of those two things occurs,
    RINs become “separated” from the associated volume of
    renewable fuel. 
    Id.
     § 80.1429(b). Those separated RINs, in
    turn, are accumulated by refiners and importers in order to
    demonstrate compliance with the Renewable Fuel Program’s
    requirements. See id. § 80.1427(a)(1).
    Therefore, individual refiners and importers have options
    when it comes to demonstrating compliance with their statutory
    obligations. Some may choose to comply with the statute by
    purchasing or blending renewable fuel themselves. Other
    parties may comply with the statute by purchasing the
    separated RINs generated, among other ways, when blenders
    mix renewable and fossil-based fuels to create blended
    transportation fuels. No matter how individual obligated
    parties choose to comply with the statute, however, the key
    point for present purposes is this: Refiners and importers are
    able to meet the Renewable Fuel Program’s industry-wide
    22
    statutory volume requirements only if an adequate volume of
    renewable fuel is available to refiners, importers, and blenders.
    2
    Although the Renewable Fuel Program statute establishes
    the annual volume requirements for the different categories of
    renewable fuel, Congress also granted EPA “waiver” power to
    reduce the statutory volume requirements in certain
    circumstances. Here, we consider the statute’s “inadequate
    domestic supply” waiver provision. That provision is located
    within a section establishing EPA’s general waiver authority.
    The provision gives EPA discretion to “waive” the statutory
    requirements applicable to obligated parties “in whole or in
    part” by “reducing the national quantity of renewable fuel
    required under paragraph (2) . . . based on a determination by
    the Administrator, after public notice and opportunity for
    comment, that there is an inadequate domestic supply.” 
    42 U.S.C. § 7545
    (o)(7)(A) (emphasis added).1
    1
    The general waiver provision reads in full:
    The Administrator, in consultation with the Secretary of
    Agriculture and the Secretary of Energy, may waive the
    requirements of paragraph (2) in whole or in part on petition by
    one or more States, by any person subject to the requirements of
    this subsection, or by the Administrator on his own motion by
    reducing the national quantity of renewable fuel required under
    paragraph (2) –
    (i) based on a determination by the Administrator, after public
    notice and opportunity for comment, that implementation of
    the requirement would severely harm the economy or
    environment of a State, a region, or the United States; or
    23
    Before the 2015 Final Rule, EPA had never relied upon the
    “inadequate domestic supply” waiver provision to reduce a
    statutory volume requirement. See Final Rule, 80 Fed. Reg. at
    77,435. In the 2015 Final Rule, EPA relied on that provision
    to reduce the total renewable fuel volume requirements for the
    years 2014, 2015, and 2016. See id. at 77,439. In so doing,
    EPA issued its first-ever interpretation of the term “inadequate
    domestic supply” for the purposes of establishing a renewable
    fuel volume requirement. Id. at 77,435.
    EPA began by noting its view that the statutory phrase
    “inadequate domestic supply” is ambiguous. Id. That is so,
    according to EPA, because the text “does not specify” what
    “product” or “person” the “general term ‘supply’ refers to.” Id.
    Having concluded that the phrase “inadequate domestic
    supply” is ambiguous, EPA stated that it had interpretive
    authority to adopt a reading of the waiver provision that would
    best align with “the overall policy goals” of the Renewable
    Fuel Program. Id. at 77,436. That “best” reading has two
    important elements that we consider here. Id. at 77,435.
    First, EPA concluded that the best reading of the
    “inadequate domestic supply” provision is that it refers to the
    supply of renewable fuel available to consumers for use in their
    vehicles – not to the supply of renewable fuel available to
    refiners, blenders, and importers for use in meeting the
    statutory volume requirements. See id. at 77,435-36. Under
    that interpretation, EPA considered all factors that would affect
    the amount of renewable fuel available for sale to consumers
    (ii) based on a determination by the Administrator, after public
    notice and opportunity for comment, that there is an
    inadequate domestic supply.
    
    42 U.S.C. § 7545
    (o)(7)(A).
    24
    including, among other things, the capacity and incentives of
    transportation fuel distributors and retail gas stations to
    distribute and sell blended transportation fuel. See 
    id. at 77
    ,452
    tbl.II.E.1-1.
    Second, EPA concluded that the “inadequate domestic
    supply” waiver provision grants it authority not only to
    consider supply-side constraints affecting the availability of
    renewable fuel – such as renewable fuel production or import
    capacity – but also to consider demand-side factors affecting
    consumers’ desire or ability to consume renewable fuels. 
    Id. at 77,435-36
    . Those demand-side factors included, among other
    things, the “existence of and expansion of” vehicles and
    engines “capable of using” renewable fuel; the number of
    “retail outlets that offer renewable fuels blends”; “the
    attractiveness” of renewable fuel blends “to consumers”; and
    the “marketing effectiveness” of those promoting renewable
    fuel products. 
    Id. at 77
    ,452 tbl.II.E.1-1, 77,460 (capitalization
    altered).
    An example helps crystallize the effects of EPA’s
    interpretation. Suppose four things for a given year: (i) the
    statutory volume requirement is 10 million gallons; (ii) a
    supply of 10 million gallons of renewable fuel is available for
    use by refiners, blenders, and importers to meet the statutory
    volume requirement; (iii) due to distribution constraints, fuel
    retailers can make nine million gallons of renewable fuel
    available to consumers; and (iv) consumers can use – and
    therefore demand – eight million gallons of renewable fuel.
    Under EPA’s interpretation of the “inadequate domestic
    supply” provision, EPA would be authorized: (i) to reduce the
    statutory volume requirement by one million gallons based on
    the distribution constraints that limit the amount of fuel offered
    by fuel retailers to consumers and (ii) to further reduce the
    volume requirement by an additional one million gallons to
    25
    reflect consumer demand for renewable fuel. Those reductions
    could be made, according to EPA, notwithstanding the fact that
    the renewable fuel supply of 10 million gallons would be
    adequate to allow refiners, blenders, and importers to introduce
    enough renewable fuel into the Nation’s fuel supply to meet the
    statutory volume requirement.
    3
    Americans for Clean Energy argues that EPA’s
    interpretation of the phrase “inadequate domestic supply” is
    inconsistent with the text, structure, and purpose of the
    Renewable Fuel Program. According to Americans for Clean
    Energy, the scope of EPA’s “inadequate domestic supply”
    waiver authority is clear: It authorizes EPA to consider supply-
    side factors affecting the volume of renewable fuel that is
    available to refiners, blenders, and importers to meet the
    statutory volume requirements. It does not, according to
    Americans for Clean Energy, allow EPA to consider factors,
    such as distribution capacity, affecting the supply of renewable
    fuel available to ultimate consumers for use in their vehicles.
    Nor does it allow EPA to consider demand-side constraints on
    the consumption of renewable fuel when determining the
    available renewable fuel supply.
    We agree with Americans for Clean Energy that EPA’s
    interpretation of the “inadequate domestic supply” waiver
    provision is inconsistent with the statute. See Chevron U.S.A.
    Inc. v. Natural Resources Defense Council, Inc., 
    467 U.S. 837
    ,
    843 & n.9 (1984).
    To begin, EPA was wrong when it concluded that
    “inadequate domestic supply” may be read to refer to the
    supply of renewable fuel available to consumers for use in their
    vehicles rather than to the supply of renewable fuel available
    26
    to refiners, blenders, and importers to meet the statutory
    volume requirements. EPA’s interpretation rests on the
    premise that the “inadequate domestic supply” waiver
    provision is ambiguous with respect to the “product” and
    “person” at issue. Final Rule, 80 Fed. Reg. at 77,435. That is
    not the case.
    The “inadequate domestic supply” provision authorizes
    EPA to “reduc[e] the national quantity of renewable fuel
    required” by the statute “based on a determination by” EPA
    “that there is an inadequate domestic supply.” 
    42 U.S.C. § 7545
    (o)(7)(A) (emphasis added). Reading the “inadequate
    domestic supply” provision together with the section it
    modifies, the only reasonable interpretation is that the
    “product” at issue is the only product referenced in the
    provision: “renewable fuel.”
    Nor is the “inadequate domestic supply” waiver provision
    ambiguous with respect to the “person” at issue. Recall that
    the statute allows EPA to apply the annual renewable fuel
    obligations to three kinds of entities – refiners, blenders, and
    importers. See 
    id.
     § 7545(o)(3)(B)(ii)(I). As discussed, EPA
    has chosen to obligate only refiners and importers. But all three
    entities – refiners, blenders, and importers – play a part in
    ensuring that statutory volume requirements are met: refiners
    and importers by purchasing or importing sufficient volumes
    of renewable fuel, and blenders by blending sufficient volumes
    of renewable fuel with fossil-based fuel to produce
    transportation fuels. See 
    40 C.F.R. § 80.1429
    (b)(1)-(2). Thus,
    it is the refiners, blenders, and importers – not consumers –
    who must “use” the statutorily required volumes of renewable
    fuel by incorporating that fuel into the Nation’s supply of
    transportation fuel. It follows that it is the refiners, blenders,
    and importers – not consumers – who must have access to an
    adequate “supply” of renewable fuel in order to meet the
    27
    Renewable Fuel Program’s statutory volume requirements.
    When the supply of renewable fuel is “inadequate” to allow
    refiners, blenders, and importers to introduce enough
    renewable fuel to meet the statutory volume requirements, the
    “inadequate domestic supply” waiver provision allows EPA to
    reduce those requirements to reflect that fact. That reduction,
    in turn, benefits obligated parties – not consumers.
    In other words, the “inadequate domestic supply” waiver
    provision is just that: a waiver provision. It authorizes EPA to
    ease the Renewable Fuel Program’s requirements when
    complying with those requirements would be infeasible. With
    that understanding of how the “inadequate domestic supply”
    provision operates in the statutory scheme, EPA’s reading of
    the provision makes little sense: Whether consumers have an
    adequate supply of renewable fuel to fill their cars is not
    relevant to whether refiners, blenders, and importers have an
    adequate supply of renewable fuel to meet the statutory volume
    requirements. For purposes of measuring available “supply,”
    the “persons” at issue are refiners, blenders, and importers.
    A comparison of the “inadequate domestic supply”
    provision with other statutory provisions related to renewable
    fuel supports that conclusion. As discussed, under EPA’s
    interpretation of the “inadequate domestic supply” provision,
    the agency may consider factors relating to the ability of
    distributors and fuel retailers to distribute and sell renewable
    fuel to downstream consumers. But in a number of nearby
    provisions, Congress explicitly authorized EPA to consider
    constraints on both the supply and distribution of a material.
    See, e.g., 
    42 U.S.C. § 7545
    (o)(8)(B) (directing Secretary of
    Energy to evaluate the “supply and distribution system
    capabilities” to help assist EPA in making a waiver
    determination for the first year of the Renewable Fuel
    Program) (emphasis added); 
    id.
     § 7545(m)(3)(C) (authorizing
    28
    EPA to delay oxygenated fuel requirements if “there is, or is
    likely to be, for any area, an inadequate domestic supply of, or
    distribution capacity for, oxygenated gasoline meeting the
    requirements” and requiring EPA to “consider distribution
    capacity separately from the adequacy of domestic supply”)
    (emphasis added). Those examples reveal that when Congress
    intended to allow EPA to consider downstream distribution
    capacity in addition to supply, it “left little doubt in the matter.”
    Henson v. Santander Consumer USA Inc., 
    137 S. Ct. 1718
    ,
    1723, slip op. at 6 (2017).
    The drafting history of the “inadequate domestic supply”
    provision, to the extent it is relevant, counts as yet another
    strike against EPA’s interpretation. The version of the Energy
    Policy Act passed by the House would have allowed EPA to
    reduce the statutory volume requirements “based on a
    determination by the Administrator, after public notice and
    opportunity for comment, that there is an inadequate domestic
    supply or distribution capacity to meet the requirement.” H.R.
    6, 109th Cong. sec. 1501(a)(2), § 7545(o)(8)(A)(ii) (as
    calendared in Senate, June 9, 2005) (emphasis added). The
    latter portion of the waiver provision – which would have
    allowed EPA to consider “distribution capacity” – was dropped
    in the version of the bill passed by the Senate. See H.R. 6,
    109th Cong. sec. 211(a)(2), § 7545(o)(7)(A)(ii) (as passed by
    Senate, June 28, 2005). As relevant here, the House agreed to
    the Senate’s amendment to the bill. See H.R. Rep. No. 109-
    190, at 1, 486 (2005) (Conf. Rep.). The “distribution capacity”
    language does not appear in the final version of the Act. See
    Energy Policy Act of 2005, Pub. L. No. 109-58, sec.
    1501(a)(2), § 7545(o)(7)(A)(ii), 
    119 Stat. 594
    , 1072.
    Congress’s decision to drop the “distribution capacity”
    language counsels against EPA’s reading in this case, which in
    effect would add that kind of language back into the waiver
    29
    provision by allowing EPA to consider factors affecting the
    distribution of renewable fuel to retailers and consumers.
    Therefore, it is evident that the “inadequate domestic
    supply” waiver provision refers to the supply of renewable fuel
    available to refiners, blenders, and importers to meet the
    statutory volume requirements. Under that reading, EPA may
    consider factors affecting the availability of renewable fuel to
    refiners, blenders, and importers. Those factors may include,
    for example, the availability of feedstocks used to make
    renewable fuel, the production capacity of renewable fuel
    producers, the amount of renewable fuel available for import
    from foreign producers, or the infrastructure capacity needed
    to get renewable fuel from producers to refiners, importers, and
    blenders. See Final Rule, 80 Fed. Reg. at 77,451-52 tbl.II.E.1-
    1. EPA may not consider, however, those factors affecting the
    availability of renewable fuel to market actors downstream
    from refiners, importers, and blenders, such as fuel retailers or
    consumers. Those prohibited factors include, for example,
    constraints on the infrastructure needed to distribute fuel from
    blenders to gas stations or the number of retail outlets that offer
    renewable fuel blends.
    The problems with EPA’s interpretation do not end there.
    In the Final Rule, EPA concluded that the “inadequate
    domestic supply” waiver provision gives it authority not only
    to evaluate those factors affecting the supply of renewable
    fuel – such as feedstock availability, renewable fuel production
    capacity, and renewable fuel import capacity – but also to
    consider factors affecting the demand for renewable fuel – such
    as pricing of renewable fuel, prevalence of vehicle engines that
    can use renewable fuel, and marketing efforts of those
    promoting renewable fuel products. See id. at 77,435-36,
    77,451-52 tbl.II.E.1-1. That interpretation, which in effect
    amends “inadequate domestic supply” to read “inadequate
    30
    domestic supply and demand,” also exceeds EPA’s statutory
    authority.
    The text of the “inadequate domestic supply” waiver
    provision all but resolves this issue. As even EPA concedes,
    the “common understanding” of the term “supply” is “an
    amount of a resource or product that is available for use by the
    person or place at issue.” Id. at 77,435; see also id. at 77,435
    n.32 (collecting dictionary definitions); THE AMERICAN
    HERITAGE DICTIONARY OF THE ENGLISH LANGUAGE (5th ed.
    2017 online) (an “amount available or sufficient for a given
    use”). When it comes to the “inadequate domestic supply”
    provision, we have already established: (i) that the “resource or
    product” is renewable fuel; (ii) that the “use” is compliance
    with the statute; and (iii) that the “persons” “at issue” are
    refiners, blenders, and importers. Putting that together,
    “supply” as used in the “inadequate domestic supply” provision
    refers to the “amount” of renewable fuel that is “available for
    use” by refiners, blenders, and importers in meeting the
    statutory volume requirements.
    Importantly, whether a thing is “available” to someone has
    nothing to do with whether he or she decides to use it. (The
    fact that a person is on a diet does not mean that there is an
    inadequate supply of food in the refrigerator.) So too here:
    Whether there is an adequate amount of renewable fuel
    available to allow refiners, blenders, and importers to meet the
    statutory volume requirements has little to do with how much
    renewable fuel that refiners, blenders, and importers – much
    less consumers at the pump – ultimately decide to use.
    EPA counters that, as a practical matter, it is unrealistic to
    delink “supply” and “demand.” EPA argues that the “supply”
    of a product is a function of the “demand” for that product, and
    that it may therefore consider demand-side factors when
    31
    deriving the available supply of renewable fuel. EPA’s
    argument falls apart in view of the operation and structure of
    this statute’s renewable fuel requirements.
    The central problem with EPA’s “supply equals demand”
    argument (in addition to the text of the statute, of course) is that
    it runs contrary to how the Renewable Fuel Program is
    supposed to work. By setting annual renewable fuel volume
    requirements that increase progressively each year, Congress
    adopted a “market forcing policy” intended to “overcome
    constraints in the market” by creating “demand pressure to
    increase consumption” of renewable fuels. Final Rule, 80 Fed.
    Reg. at 77,423; Monroe Energy, 750 F.3d at 917 (internal
    quotation marks omitted). Therefore, as EPA recognized in a
    previous rulemaking, demand for renewable fuel “will be a
    function of the” renewable fuel standards “set” by EPA.
    Regulation of Fuels and Fuel Additives: 2011 Renewable Fuel
    Standards, 
    75 Fed. Reg. 76,790
    , 76,803 (Dec. 9, 2010). In
    other words, the Renewable Fuel Program’s increasing
    requirements are designed to force the market to create ways to
    produce and use greater and greater volumes of renewable fuel
    each year. EPA’s interpretation of the “inadequate domestic
    supply” provision flouts that statutory design: Instead of the
    statute’s volume requirements forcing demand up, the lack of
    demand allows EPA to bring the volume requirements down.
    “No argument” that EPA has “offered here supports that goal-
    defying (much less that text-defying) statutory construction.”
    Advocate Health Care Network v. Stapleton, 
    137 S. Ct. 1652
    ,
    1662, slip op. at 14 (2017).
    In short, applying the “traditional tools” of statutory
    interpretation, we conclude that the “inadequate domestic
    supply” waiver provision refers to the supply of renewable fuel
    available to refiners, blenders, and importers to meet the
    statutory volume requirements. Chevron, 
    467 U.S. at
    843 n.9.
    32
    We also conclude that, for purposes of examining whether the
    supply of renewable fuel is adequate, the “inadequate domestic
    supply” provision authorizes EPA to consider only supply-side
    factors – such as production and import capacity – affecting the
    available supply of renewable fuel. The “inadequate domestic
    supply” provision does not authorize EPA to consider demand-
    side factors affecting the demand for renewable fuel.
    4
    EPA presses three primary arguments in an attempt to
    counter the conclusion dictated by the text and structure of the
    Renewable Fuel Program statute. None is convincing.
    First, EPA argues that the statutory definition of
    “renewable fuel” supports its position. The statute defines
    “renewable fuel” as “fuel that is produced from renewable
    biomass and that is used to replace or reduce the quantity of
    fossil fuel present in a transportation fuel.” 
    42 U.S.C. § 7545
    (o)(1)(J) (emphasis added). Latching on to the words
    “that is used,” EPA argues that biofuel qualifies as “renewable
    fuel” only if it is “actually used to replace fossil-based
    transportation fuels.” Final Rule, 80 Fed. Reg. at 77,435. From
    that premise, EPA argues that its interpretation of “inadequate
    domestic supply” is permissible because it focuses on the point
    at which renewable fuel is “actually used” to replace fossil-
    based transportation fuels – namely, when “ultimate
    consumers” fuel their cars at the gas pump. Id.; see also id. at
    77,435 n.33.
    We reject EPA’s attempt to bootstrap the definition of
    “renewable fuel” into a boundless general waiver authority.
    Contrary to EPA’s contention, the phrase “that is used” in the
    definition of “renewable fuel” does not mean that biofuel
    transforms into renewable fuel only when it is actually pumped
    33
    into gas tanks. Rather, as Americans for Clean Energy
    explains, the “term ‘used’ merely defines the qualifying uses to
    which the biofuel may be put.” Americans for Clean Energy
    Br. 15. The definition clarifies, for instance, that “renewable
    fuel” is biofuel used in “transportation fuel,” whereas
    “additional renewable fuel” is biofuel used in “home heating
    oil or jet fuel.” Compare 
    42 U.S.C. § 7545
    (o)(1)(J), with 
    id.
    § 7545(o)(1)(A). Notably, it is EPA’s reading of the
    “renewable fuel” definition that glosses over the statutory text:
    For the most part, biofuel “is used to replace or reduce the
    quantity of fossil fuel present in a transportation fuel” when
    blenders mix biofuel with fossil-based fuel to create a blended
    transportation fuel – not, as EPA claims, when consumers
    pump transportation fuels into their cars. Id. § 7545(o)(1)(J)
    (emphasis added).
    Second, EPA contends that interpreting “supply” to refer
    to the amount of renewable fuel available to refiners, blenders,
    and importers in effect reads “supply” to mean “production.”
    That interpretation is not correct, according to EPA, because
    “other fuel related provisions of the Clean Air Act” distinguish
    between “capacity to produce” and “capacity to supply” fuel.
    Final Rule, 80 Fed. Reg. at 77,436 (comparing 
    42 U.S.C. § 7545
    (k)(6)(A)(ii) with 
    id.
     § 7545(k)(6)(B)(iii)(I)). EPA is
    correct that, in practice, the supply of renewable fuel available
    to refiners, blenders, and importers will be dictated to a large
    extent by the production capacity of the producers who make
    renewable fuel. But that does not mean that “supply” includes
    only production capacity. On the contrary, our interpretation
    of supply allows EPA to consider the amount of renewable fuel
    available through import, for example. In addition, as
    Americans for Clean Energy explains, the correct interpretation
    of “supply” leaves EPA room to consider “non-production
    factors” – such as a natural disaster – that would affect “a
    biofuel-fuel producer’s ability to deliver its product” to
    34
    refiners, blenders, and importers. Americans for Clean Energy
    Reply 9; see also Tr. of Oral Arg. at 5-6. The correct reading
    of “supply,” therefore, does not conflate “supply” with
    “production.”
    Third, EPA contends that its interpretation better aligns
    with the “overall policy goals” of the Renewable Fuel Program.
    Final Rule, 80 Fed. Reg. at 77,436. EPA argues that reading
    “inadequate domestic supply” to refer only to the available
    supply of biofuel – without consideration of whether that fuel
    can be consumed – could “impose large compliance costs on
    obligated parties with no corresponding increase in the use of
    renewable fuels, contrary to the purposes of the Act.” EPA Br.
    52. According to EPA, its interpretation of “inadequate
    domestic supply” is therefore necessary to avoid causing
    harmful effects in the renewable fuel market such as “a
    significant increase in renewable fuel and RIN prices,” “RIN
    deficits,” or “non-compliance” by obligated parties. Final
    Rule, 80 Fed. Reg. at 77,453.
    To the extent that application of the statutory volume
    requirements may lead to negative economic effects, we note
    that such effects could be addressed through other provisions
    of the statute. In particular, Congress authorized EPA to reduce
    the statutory renewable fuel volume requirements upon a
    determination that implementation of those requirements
    “would severely harm the economy or environment of a State,
    a region, or the United States.” 
    42 U.S.C. § 7545
    (o)(7)(A)(i).
    EPA has not explained why Congress would have established
    the severe-harm waiver standard “only to allow waiver under
    the inadequate-supply” provision based on “lesser degrees” of
    economic harm. Americans for Clean Energy Reply 6. The
    statute provides other protections against economic harm, too.
    In the years following 2016, if EPA concludes that the statutory
    volume requirements for a category of renewable fuel need to
    35
    be reduced by more than 20 percent for two consecutive years
    or by 50 percent in any one year, the statute allows EPA to reset
    the volume requirements. See 
    42 U.S.C. § 7545
    (o)(7)(F). The
    statute also provides a safe harbor for individual obligated
    parties struggling to comply with a year’s requirements. The
    statute mandates that EPA allow those parties to carry a
    renewable fuel deficit forward into the next compliance year,
    so long as certain conditions are satisfied.            See 
    id.
    § 7545(o)(5)(D); 
    40 C.F.R. § 80.1427
    (b). In light of those
    provisions, we are not convinced that EPA’s strained
    interpretation of “inadequate domestic supply” is necessary to
    avoid the parade of horribles that EPA identifies.
    Taking a step back, moreover, we reject EPA’s purposive
    argument on its own terms. That is because EPA’s proposed
    interpretation of the “inadequate domestic supply” waiver
    provision – in which the demand for renewable fuel largely
    dictates the volume requirements – turns the Renewable Fuel
    Program’s “market forcing” provisions on their head. Final
    Rule, 80 Fed. Reg. at 77,423. To be sure, EPA and obligated
    parties have raised serious concerns that the Renewable Fuel
    Program is not actually functioning as intended and that, as a
    result, the statute’s requirements will only become more and
    more impractical to meet. But the fact that EPA thinks a statute
    would work better if tweaked does not give EPA the right to
    amend the statute. Cf. Utility Air Regulatory Group v. EPA,
    
    134 S. Ct. 2427
    , 2445, slip op. at 21 (2014) (“An agency has
    no power to ‘tailor’ legislation to bureaucratic policy goals by
    rewriting unambiguous statutory terms. Agencies exercise
    discretion only in the interstices created by statutory silence or
    ambiguity; they must always give effect to the unambiguously
    expressed intent of Congress.”) (internal quotation marks
    omitted).
    36
    Some – including the Obligated Party Petitioners – say that
    the statute sets up a crazy regime that requires production of a
    product that few people want and that therefore will never be
    consumed. “Even if we were persuaded” by those “policy
    arguments, those arguments could not overcome the statute’s
    plain language, which is our primary guide to Congress’
    preferred policy.” Sandoz Inc. v. Amgen Inc., 
    137 S. Ct. 1664
    ,
    1678, slip op. at 18 (2017) (internal quotation marks omitted).
    If the regime is indeed flawed, it is up to Congress and the
    President to “reenter the field” and fix it. Henson, 137 S. Ct.
    at 1725, slip op. at 10; see U.S. CONST. art. I, § 7, cl. 2.
    In conclusion, we hold that the statute forecloses EPA’s
    interpretation of the “inadequate domestic supply” waiver
    provision. We therefore vacate EPA’s decision to reduce the
    total renewable fuel volume requirements for 2016 through use
    of the “inadequate domestic supply” waiver provision and
    remand the Final Rule to the agency for further consideration
    in light of our decision.2
    B
    We now turn to Americans for Clean Energy’s argument
    that EPA was required to consider carryover RINs as a supply
    source of renewable fuel for purposes of exercising its
    “inadequate domestic supply” waiver authority. EPA’s failure
    to consider carryover RINs as a source of supply, according to
    2
    Having reached that conclusion, we need not consider
    Americans for Clean Energy’s alternative arbitrary and capricious
    challenge to the 2016 total renewable fuel requirement. That
    challenge was based on EPA’s allegedly incorrect calculation of the
    demand for E85 fuel. Because we conclude that EPA does not have
    statutory authority to consider demand under the “inadequate
    domestic supply” waiver provision, the issue of how EPA calculated
    demand is a moot point.
    37
    Americans for Clean Energy, led EPA to set the total renewable
    fuel volume requirements at too low a level. We reject that
    argument.
    To review: The Renewable Fuel Program requires refiners
    and importers of gasoline and diesel fuel to satisfy an annual
    “renewable fuel obligation” issued by EPA. 
    42 U.S.C. § 7545
    (o)(3)(B)(ii). In the course of setting the annual
    renewable fuel obligation, EPA must establish the volume
    requirements for each category of renewable fuel. Those
    volume requirements represent the total volumes of renewable
    fuel that must be sold or introduced into United States
    commerce in a given year. See Monroe Energy, 750 F.3d at
    912.     Although the statute sets forth annual volume
    requirements for certain years, EPA may reduce those statutory
    volume requirements in specified circumstances. As just
    discussed, one component of the statute’s general waiver
    provision allows EPA to reduce the statutory volume
    requirements when it concludes that there is an “inadequate
    domestic supply” of renewable fuel.                
    42 U.S.C. § 7545
    (o)(7)(A)(ii).
    Once EPA issues the annual renewable fuel obligations,
    the obligated parties must satisfy those obligations. To
    facilitate the compliance process, Congress directed EPA to
    establish a credit program through which obligated parties may
    satisfy their renewable fuel obligations by accumulating
    renewable fuel credits. 
    Id.
     § 7545(o)(5). Of importance here,
    Congress specified that any credits generated for use in the
    credit trading program “shall be valid to show compliance for
    the 12 months as of the date of generation.”                Id.
    § 7545(o)(5)(C).
    Under the credit program established by EPA, obligated
    parties comply with their renewable fuel obligations by
    38
    acquiring permits known as RINs. Each set of RINs
    corresponds to a batch of renewable fuel that is produced or
    imported for use in the United States. Monroe Energy, 750
    F.3d at 913. To fulfill their statutory requirements, obligated
    parties accumulate the number of RINs needed to comply with
    their annual renewable fuel obligations and then retire the RINs
    in an annual compliance demonstration with EPA. 
    40 C.F.R. § 80.1427
    (a). If an obligated party has more RINs than it needs
    to meet its renewable fuel obligation, the obligated party may
    sell or trade the extra RINs or instead choose to “bank” the
    RINs for use in the next compliance year. Monroe Energy, 750
    F.3d at 913; see also 
    42 U.S.C. § 7545
    (o)(5)(B); 
    40 C.F.R. §§ 80.1425-29
    . The industry refers to those saved RINs as
    “carryover” RINs.
    The key question for present purposes is this: When
    evaluating the available “supply” of renewable fuel for
    purposes of the “inadequate domestic supply” waiver
    provision, must EPA consider carryover RINs as a supply
    source of renewable fuel? Americans for Clean Energy argues
    yes. EPA says no. We agree with EPA that the statute is better
    read not to require EPA to consider carryover RINs.
    We look first to the text of the statute. The Renewable
    Fuel Program allows EPA to reduce the total renewable fuel
    volume requirement upon a finding that there is an “inadequate
    domestic supply” of renewable fuel.                
    42 U.S.C. § 7545
    (o)(7)(A)(ii). In a separate provision, Congress required
    EPA to create a “credit program.”             
    Id.
     § 7545(o)(5)
    (capitalization altered). Congress contemplated that an
    obligated party would be allowed to carry over credits from one
    year into the next: One of the credit program’s provisions
    states that credits generated in the credit program “shall be
    valid to show compliance for the 12 months as of the date of
    generation.” Id. § 7545(o)(5)(C). But nothing in the text of
    39
    either provision indicates that the “supply” of renewable fuel
    available in a year must include any available “carryover”
    credits from the prior year. See Final Rule, 80 Fed. Reg. at
    77,484 (statute gives “no guidance in the text” regarding
    “whether or not carryover RINs should be deemed part of the
    ‘supply’ referenced” in the general waiver provision).
    Americans for Clean Energy counters that a different
    provision of the statute – EPA’s statutory duty to “ensure[]”
    that the mandated volume requirements are met – requires EPA
    to consider carryover RINs as a supply source of renewable
    fuel. 
    42 U.S.C. § 7545
    (o)(3)(B)(i). It argues that considering
    carryover RINs as a source of supply in a given year will lead
    EPA to make a lesser reduction to the statutory volume
    requirement for total renewable fuel. Congress, however, did
    not “pursue[] its purposes” of increased renewable fuel
    generation “at all costs.” American Express Co. v. Italian
    Colors Restaurant, 
    133 S. Ct. 2304
    , 2309, slip op. at 4 (2013)
    (quoting Rodriguez v. United States, 
    480 U.S. 522
    , 525-26
    (1987) (per curiam)). It included waiver provisions that allow
    EPA to lessen the Renewable Fuel Program’s requirements in
    specified circumstances, including when EPA concludes that
    there is an “inadequate domestic supply” of renewable fuel to
    meet those requirements. It is therefore the text of the
    “inadequate domestic supply” waiver provision that controls
    our analysis here. And that text does not reference carryover
    RINs as a source of supply of renewable fuel.
    EPA’s proposed interpretation reads “inadequate domestic
    supply” of renewable fuel to refer only to the “actual renewable
    fuel” available in a given year and not to carryover RIN credits
    representing renewable fuel generated the prior year. Final
    Rule, 80 Fed. Reg. at 77,484. Put differently, EPA’s
    interpretation reads “supply” of renewable fuel to mean just
    that – “supply of renewable fuel” – rather than “supply of
    40
    renewable fuel and supply of carryover credits.” EPA’s
    interpretation is consistent with the statutory text, not contrary
    to it.
    EPA’s interpretation makes eminent sense, moreover,
    when considered in light of the purposes of the Renewable Fuel
    Program statute. In promulgating its interpretation, EPA
    explained the critical importance of carryover RINs to the
    functioning of the renewable fuel market and to the ability of
    obligated parties to comply with their obligations. Id. at
    77,483-84. EPA pointed out that the “bank of carryover RINs”
    at the time of the Final Rule’s issuance was “substantially less,
    both in absolute numbers and as a percentage of the applicable
    standards, than was the case in prior actions.” Id. at 77,486.
    EPA further noted that, were it to consider carryover RINs as a
    supply source of renewable fuel for purposes of the
    “inadequate domestic supply” provision, the number of
    carryover RINs in the market would be reduced to almost zero.
    See id. at 77,484. Without the flexibility and liquidity provided
    by carryover RINs, EPA reasoned that obligated parties facing
    unexpected shortfalls or increased demand for transportation
    fuel may be left with no way to comply with the statute. Id. at
    77,483. That situation, in turn, could “lead to the need for a
    new waiver of the standards” and thereby undermine “the
    market certainty so critical to the long term success” of the
    Renewable Fuel Program. Id. According to EPA, those
    concerns counseled in favor of interpreting the phrase
    “inadequate domestic supply” to refer only to the actual
    volumes of renewable fuel available in the relevant compliance
    year. Id. at 77,484-85.3
    3
    Americans for Clean Energy sprinkles a few arbitrary and
    capricious challenges into its argument regarding EPA’s
    interpretation. Even assuming that those arguments are not
    foreclosed by the text of the statute, they still lack merit. First,
    Americans for Clean Energy argues that EPA “did not explain why”
    41
    EPA’s interpretation also reasonably balances the need to
    drive growth in the renewable fuel industry with the need to
    ensure that obligated parties have sufficient flexibility to
    comply with the statute. EPA stresses that, under its
    interpretation, EPA may still consider carryover RINs when
    determining whether it should exercise its “inadequate
    domestic supply” waiver authority to reduce statutory volume
    requirements. Id. According to EPA, the presence of a large
    amount of carryover RINs in the market will make EPA less
    likely to reduce the statutory volume requirements. Id. at
    77,485; cf. Monroe Energy, 750 F.3d at 917 (EPA may
    consider “availability of carryover RINs” when determining
    whether to exercise waiver authority to reduce total renewable
    the carryover RIN bank “must have at least 1.74 billion RINs” or
    explain why EPA could not “safely” reduce the bank to a lesser
    amount. Americans for Clean Energy Br. 31. EPA explained,
    however, that “the result” of interpreting “supply” in the manner
    proposed by Americans for Clean Energy “would be a complete
    drawdown in the collective bank of carryover RINs in a relatively
    short time period.” Final Rule, 80 Fed. Reg. at 77,484. That is,
    Americans for Clean Energy’s interpretation of “supply” as
    including carryover RINs would leave EPA no choice but to reduce
    the carryover RIN bank to almost zero. EPA concluded that such a
    result threatened the interests of the Renewable Fuel Program.
    Second, contrary to Americans for Clean Energy’s contentions, EPA
    adequately explained why its interpretation will not discourage
    obligated parties from investing in new generation of renewable fuel.
    EPA noted, for example, that the statute’s increasing volume
    requirements have made it “increasingly difficult” for obligated
    parties to “over-comply and create carryover RINs” – meaning that
    obligated parties will need to invest in new renewable fuel sources to
    generate sufficient RINs for compliance. Id. at 77,485. EPA also
    cited evidence from 2013 showing that parties generated new RINs,
    rather than relying exclusively on carryover RINs, to meet their
    compliance burdens. Id. at 77,486.
    42
    fuel volume requirement). EPA also pointed out that its
    regulations specify “that obligated parties may only satisfy 20
    percent” of their annual renewable fuel obligations with
    carryover RINs. Final Rule, 80 Fed. Reg. at 77,485. EPA
    reasonably concluded that those considerations will mitigate
    the possibility that obligated parties will comply with their
    obligations through large amounts of carryover RINs rather
    than through investment in increased renewable fuel
    generation. See id. at 77,484-86.4
    Given all of the above, we uphold EPA’s interpretation of
    the “inadequate domestic supply” waiver provision. EPA need
    not consider carryover RINs as a supply source of renewable
    fuel for purposes of determining the supply of renewable fuel
    available in a given year.5
    III
    In this section, we address two challenges arising from
    EPA’s lateness in issuing the Final Rule. First, EPA cited its
    own lateness – and the need to avoid imposing retroactive
    burdens on obligated parties – as a reason to set the 2014 and
    2015 volume requirements based on the volume of renewable
    4
    Because EPA sufficiently explained the practical and policy-
    based reasons for its decision to maintain the carryover RIN bank,
    we also reject National Biodiesel Board’s argument that EPA’s
    carryover RIN analysis was irrational. See National Biodiesel Board
    Br. 18-19.
    5
    Because we agree with EPA that its reading of this provision
    is the better reading, we need not consider whether it is
    unambiguously the better reading for Chevron purposes such that
    EPA could not alter its interpretation in the future. Cf. Coventry
    Health Care of Missouri, Inc. v. Nevils, 
    137 S. Ct. 1190
    , 1198 n.3,
    slip op. at 9 n.3 (2017); Action Alliance of Senior Citizens v. Sebelius,
    
    607 F.3d 860
    , 863 n.2 (D.C. Cir. 2010).
    43
    fuel actually supplied in those years. National Biodiesel Board
    and Americans for Clean Energy argue that this was error.
    Second, EPA missed the relevant statutory deadlines to issue
    biomass-based diesel volume requirements for the years 2014
    through 2017. The Obligated Party Petitioners argue that this
    was error. We reject both of those challenges.
    A
    As explained above, the Renewable Fuel Program requires
    obligated parties – namely, refiners and importers of gasoline
    or diesel fuel – to meet an annual renewable fuel obligation for
    four categories of renewable fuel. Obligated parties calculate
    their annual compliance obligations using percentage standards
    set by EPA. The percentage standards, in turn, are based on
    volume requirements, also set by EPA.             The volume
    requirements represent the total volume of renewable fuel that
    must be introduced into the Nation’s transportation fuel supply
    in a given year.
    In the Renewable Fuel Program, Congress provided
    statutory tables setting annual volume requirements for four
    categories of renewable fuel. The statutory tables for three
    categories – cellulosic biofuel, advanced biofuel, and total
    renewable fuel – provide volume requirements through the year
    2022. See 
    42 U.S.C. § 7545
    (o)(2)(B)(i)(I)-(III). The statutory
    table for biomass-based diesel, in contrast, provides volume
    requirements only through the year 2012.                    
    Id.
    § 7545(o)(2)(B)(i)(IV). For subsequent years, the statute sets
    a baseline volume requirement at one billion gallons. See id.
    § 7545(o)(2)(B)(v).      The statute vests EPA with the
    responsibility to promulgate an annual volume requirement
    over and above that baseline. In making that determination,
    EPA must consider a number of statutory factors. See id.
    § 7545(o)(2)(B)(ii).
    44
    EPA must meet two different statutory deadlines when
    promulgating volume requirements and percentage standards.
    First, EPA must promulgate all renewable fuel percentage
    standards for a given year by November 30 of the preceding
    year. Id. § 7545(o)(3)(B)(i). Second, EPA must promulgate
    the volume requirements for those years not covered by the
    statutory tables “no later than 14 months before the first year”
    for which such volume requirements will apply.               Id.
    § 7545(o)(2)(B)(ii).
    As it relates to the challenges in this section, EPA therefore
    faced the following deadlines for the volume requirements and
    percentage standards set in the Final Rule: (i) EPA was
    required to promulgate the percentage standards (and
    associated volume requirements) for cellulosic biofuel,
    advanced biofuel, and total renewable fuel for the year 2014 by
    November 30, 2013, and for the year 2015 by November 30,
    2014; and (ii) EPA was required to promulgate the volume
    requirements for biomass-based diesel by October 2012 for
    year 2014; October 2013 for year 2015; and so on.
    EPA issued the Final Rule in December 2015. Therefore,
    as relevant here, EPA failed to meet the statutory deadlines for
    all of the 2014 and 2015 percentage standards and also missed
    the statutory deadlines for the biomass-based diesel volume
    requirements for the years 2014 through 2017. See Final Rule,
    80 Fed. Reg. at 77,430.
    Despite its delay, EPA stated that it was issuing percentage
    standards for the years 2014 and 2015 and biomass-based
    diesel volume requirements for the years 2014 through 2017.
    EPA stated that it had authority to issue the late standards and
    requirements under this Court’s precedents in National
    Petrochemical & Refiners Association v. EPA, 
    630 F.3d 145
    45
    (D.C. Cir. 2010), and Monroe Energy, LLC v. EPA, 
    750 F.3d 909
     (D.C. Cir. 2014). According to EPA, those decisions
    authorize EPA to issue late renewable fuel standards with
    retroactive effect so long as EPA reasonably mitigates any
    burdens that its lateness imposes on obligated parties. See
    Final Rule, 80 Fed. Reg. at 77,430.
    In the Final Rule, EPA explained the steps it had taken to
    mitigate any burdens imposed by the late issuance of the Final
    Rule. See id. at 77,430-31, 77,491-92. In particular, EPA set
    the volume requirements (and associated percentage standards)
    for all fuel types for the years 2014 and 2015 based on the
    volumes of renewable fuel that were actually introduced and
    available for compliance during those years. See id. at 77,440.6
    EPA asserted that its approach meant that there would be “an
    adequate quantity of RINs available to satisfy” the 2014 and
    2015 requirements and thus would prevent the Final Rule from
    imposing an “unreasonable burden” on obligated parties. Id. at
    77,430, 77,431; see also id. at 77,446-47. With respect to the
    late biomass-based diesel requirements, EPA concluded that
    obligated parties had adequate notice of their obligations and
    would have sufficient time to acquire the necessary RINs to
    comply with their obligations. See id. at 77,491; see also EPA
    Br. 103.
    Two sets of parties now challenge EPA’s analysis. First,
    National Biodiesel Board and Americans for Clean Energy
    6
    To determine the actual volumes of renewable fuel that were
    introduced and available for compliance during 2014 and the
    relevant months of 2015, EPA looked to the “net” number of
    renewable fuel RINs generated during those years. The “net”
    number of renewable fuel RINs equals the total number of renewable
    fuel RINs generated “minus RINs retired for non-compliance reasons
    such as exports of renewable fuel or spills.” Final Rule, 80 Fed. Reg.
    at 77,440; see also id. at 77,447-48.
    46
    argue that EPA erred by citing its delay as a reason to set the
    2014 and 2015 volume requirements lower than the statutory
    volume requirements. Second, the Obligated Party Petitioners
    argue that EPA lacked authority to issue the late biomass-based
    diesel volume requirements for the years 2014 through 2017.
    We now address, and ultimately reject, each of those
    arguments.
    B
    EPA relied on its lateness in issuing the 2014 and 2015
    renewable fuel requirements as a reason to set those
    requirements based on the actual volumes of renewable fuel
    that were introduced and available for compliance during those
    years. National Biodiesel Board and Americans for Clean
    Energy say that was impermissible. Based on our precedents,
    we reject their challenge.
    In National Petrochemical & Refiners Association v. EPA,
    
    630 F.3d 145
     (D.C. Cir. 2010), this Court held that EPA has
    statutory authority to issue late renewable fuel requirements,
    even when they have retroactive effects. See 
    id. at 154-58
    .
    EPA’s authority to issue late renewable fuel requirements is not
    unlimited, however.       Rather, we specified in National
    Petrochemical that EPA must exercise its authority reasonably
    by considering the “benefits and the burdens attendant to its
    approach” of issuing late renewable fuel requirements. 
    Id. at 166
    . Applying that standard, we concluded that EPA’s
    issuance of a late volume requirement with retroactive effects
    was reasonable. That was so because EPA considered, among
    other things, whether obligated parties had adequate lead time
    and access to a sufficient number of RINs to comply with the
    delayed requirement. 
    Id. at 165
    .
    47
    We followed the same approach a few years later in
    Monroe Energy, LLC v. EPA, 
    750 F.3d 909
     (D.C. Cir. 2014).
    In that case, we concluded that EPA’s decision to issue late
    renewable fuel standards was reasonable because EPA
    “considered various ways to minimize the hardship caused to
    obligated parties” by its delay and chose to extend the
    compliance deadline. 
    Id. at 920
    .
    National Petrochemical and Monroe Energy together
    establish that EPA may promulgate late renewable fuel
    requirements – and even apply those standards retroactively –
    so long as EPA reasonably considers and mitigates any
    hardship caused to obligated parties by reason of the lateness.
    According to National Biodiesel Board and Americans for
    Clean Energy, EPA erred by treating its lateness “as license” to
    reduce the 2014 and 2015 statutory volume requirements to
    reflect the actual volumes of renewable fuel that were
    introduced and available for compliance during those years.
    Americans for Clean Energy Br. 25; see also National
    Biodiesel Board Br. 16. That argument, however, overlooks
    the fact that 2014 and most of 2015 had already passed by the
    time EPA issued the Final Rule. Although EPA determined
    that it was duty-bound to issue volume requirements and
    percentage standards for those years – even though they were
    late – EPA also recognized its duty to consider and mitigate
    any hardships caused to obligated parties by reason of its
    lateness.
    EPA took a number of steps to minimize the harm and
    retroactive effects caused by its late issuance of the 2014 and
    2015 standards. The most important of those steps was EPA’s
    choice to set the volume requirements for the years 2014 and
    2015 based on the actual volumes of renewable fuel that were
    introduced and available for compliance. By setting the 2014
    48
    and 2015 standards based on actual renewable fuel volumes –
    as measured by the number of RINs that were both generated
    and available for compliance during those years – EPA ensured
    that there would be a sufficient supply of RINs available to
    allow obligated parties to satisfy the requirements. Final Rule,
    80 Fed. Reg. at 77,430; see also id. at 77,439-40. EPA
    explained that setting the standards based on the statutory
    volume requirements would be an “unreasonable approach”
    because it would “require either noncompliance” on the part of
    obligated parties or create dysfunction in the renewable fuel
    market. See id. at 77,439.
    Therefore, contrary to the contention advanced by
    National Biodiesel Board and Americans for Clean Energy,
    this is not a simple case of EPA using its delay as an excuse to
    shirk its statutory duties. EPA’s decision regarding the 2014
    and 2015 volume requirements instead reflects the fact that
    EPA was bound by our precedents (not to mention basic
    principles of due process) to mitigate the hardships to obligated
    parties caused by late promulgation and retroactive application
    of the 2014 and 2015 standards. In a perfect world, agencies
    such as EPA would never miss their deadlines. But once they
    have, our precedents in this area require that EPA reasonably
    balance its statutory duties with the rights of the entities it
    regulates.7
    7
    National Biodiesel Board counters that, even if EPA were
    authorized to set the 2014 and 2015 volume requirements based on
    actual fuel volumes generated during those years, EPA improperly
    focused on the volumes of fuel that were “available for compliance.”
    National Biodiesel Board Br. 18. National Biodiesel Board argues
    that EPA should have set the volume requirements based on “gross”
    RIN generation – that is, the total number of renewable fuel RINs
    generated without subtracting any RINs that were exported or put to
    non-qualifying uses. Id. We do not agree. As EPA explained, its
    approach to setting the late 2014 and 2015 volume requirements
    49
    In conclusion, EPA’s decision to set the late 2014 and
    2015 volume requirements based on the actual volumes of fuel
    introduced and available for compliance during those years was
    reasonable in light of EPA’s duty to mitigate any effects of its
    delay on obligated parties.
    C
    We next consider whether EPA permissibly issued the
    biomass-based diesel volume requirements for the years 2014
    through 2017. Answering that question requires us to
    determine (i) whether EPA had statutory authority to issue late
    biomass-based diesel volume requirements and (ii) if so,
    whether EPA exercised that authority reasonably. Contrary to
    the arguments of the Obligated Party Petitioners, the answer to
    both of those questions is yes.
    1
    In the December 2015 Final Rule, EPA promulgated the
    biomass-based diesel volume requirements for the years 2014
    through 2017. The statutory volume tables do not contain
    volume requirements for biomass-based diesel after the year
    2012. Rather, the biomass-based diesel table sets a minimum
    ensures that obligated parties will be able to meet those requirements
    by buying and selling RINs. That method of compliance would not
    be available under National Biodiesel Board’s proposed approach,
    which would set the volume requirements at levels higher than the
    number of RINs available in the market. National Biodiesel Board’s
    approach of using gross RIN generation to set the 2014 and 2015
    volume requirements therefore suffers from the same problem as
    using the statutory volume requirements – it would require
    noncompliance or create dysfunction in the renewable fuel market.
    See Final Rule, 80 Fed. Reg. at 77,439-40, 77,445.
    50
    volume requirement at one billion gallons. See 
    42 U.S.C. § 7545
    (o)(2)(B)(v). For each year following 2012, EPA must
    determine the biomass-based diesel volume requirement in the
    first instance after considering a number of statutory factors.
    See 
    id.
     § 7545(o)(2)(B)(ii). EPA promulgated the following
    biomass-based diesel requirements in the Final Rule: 1.63
    billion gallons (year 2014); 1.73 billion gallons (year 2015);
    1.90 billion gallons (year 2016); and 2.0 billion gallons (year
    2017). See Final Rule, 80 Fed. Reg. at 77,422 tbl.I-1.
    By statute, EPA must promulgate volume requirements for
    years not covered by the statutory volume tables “no later than
    14 months before the first year” for which the volume
    requirement will apply. 
    42 U.S.C. § 7545
    (o)(2)(B)(ii). EPA
    did not promulgate the Final Rule until December 2015. It
    therefore missed the statutory deadlines for promulgating the
    biomass-based diesel volume requirements.
    Notwithstanding those missed deadlines, EPA argues that
    it had authority to promulgate the biomass-based diesel
    requirements under this Court’s decisions in National
    Petrochemical and Monroe Energy. We agree with EPA.
    As discussed in the previous section, this Court held in
    National Petrochemical and again in Monroe Energy that
    Congress authorized EPA to issue late renewable fuel volume
    requirements under the Renewable Fuel Program. In reaching
    that outcome, we looked first to the text of the statute. We
    noted that Congress “did not state” in the statutory text “what
    would happen if EPA failed to meet the statutory deadline for
    promulgating” renewable fuel regulations.              National
    Petrochemical, 630 F.3d at 154. We explained that “where
    there are less drastic remedies available for an agency’s failure
    to meet a statutory deadline, courts should not assume
    51
    Congress intended for the agency to lose its power to act.” Id.
    (citing Brock v. Pierce County, 
    476 U.S. 253
    , 260 (1986)).
    Applying that principle, we concluded that it was “highly
    unlikely” that Congress intended EPA’s delay to prevent EPA
    from fulfilling its statutory mandate to “promulgate regulations
    to ensure” that transportation fuel contains “at least the
    applicable volume of renewable fuel, advanced biofuel,
    cellulosic biofuel, and biomass-based diesel, determined in
    accordance with subparagraph (B).” Id. at 153, 156 (emphasis
    omitted) (quoting 
    42 U.S.C. § 7545
    (o)(2)(A)(i)). Declining to
    endorse such a “drastic” and “incongruous result,” we instead
    held that EPA may issue late volume requirements so long as
    it acts reasonably in doing so. 
    Id. at 157
     (quoting Brock, 
    476 U.S. at 258
    ); see also Monroe Energy, 750 F.3d at 920. Here
    we confront that “same issue” – EPA’s authority to issue late
    volume requirements under the Renewable Fuel Program.
    LaShawn A. v. Barry, 
    87 F.3d 1389
    , 1393 (D.C. Cir. 1996) (en
    banc) (emphasis omitted). Therefore, we are bound by stare
    decisis to reach the “same result” – EPA may issue delayed
    volume requirements so long as it acts reasonably in doing so.
    
    Id.
     (emphasis omitted).
    The Obligated Party Petitioners counter that National
    Petrochemical and Monroe Energy do not control our analysis
    of EPA’s authority to issue the delayed biomass-based diesel
    volume requirements. They say that the industry parties in
    those cases were on notice of their potential statutory
    obligations before EPA issued the delayed volume
    requirements. The Obligated Party Petitioners claim that the
    notice provided by the statutory volume tables in National
    Petrochemical and Monroe Energy was a pre-condition to the
    Court’s conclusion that EPA had statutory authority to issue the
    delayed volume requirements at issue in those cases. Because
    such notice is lacking in this case, the Obligated Party
    52
    Petitioners contend that EPA had no authority to set the
    biomass-based diesel requirements at levels above the statutory
    floor of one billion gallons or, in the alternative, above the 2013
    biomass-based diesel volume requirement of 1.28 billion
    gallons.
    That argument is not persuasive. The general rule that
    National Petrochemical and Monroe Energy establish – that
    EPA has authority to issue late renewable fuel volume
    requirements – was based on the Court’s reading of the statute
    and on congressional intent. Specifically, the Court pointed to:
    (i) Congress’s failure to specify the consequences of EPA’s
    failure to meet a statutory deadline; (ii) the principle that
    “where there are less drastic remedies available for an agency’s
    failure to meet a statutory deadline, courts should not assume
    Congress intended for the agency to lose its power to act”;
    (iii) EPA’s “statutory mandate” to “ensure” that the annual
    volume requirements are met; and (iv) the notion that it would
    be “drastic” and “incongruous” to preclude EPA from fulfilling
    that “statutory mandate” based on its delay. National
    Petrochemical, 630 F.3d at 154, 157; Monroe Energy, 750 F.3d
    at 920. Each of those rationales applies when it comes to
    EPA’s duty to promulgate biomass-based diesel volume
    requirements.
    Applying the analysis set forth in National Petrochemical
    and Monroe Energy, we therefore conclude that EPA had
    statutory authority to issue the late biomass-based diesel
    volume requirements for the years 2014 through 2017.
    2
    Having determined that EPA had statutory authority to
    issue the delayed biomass-based diesel volume requirements,
    we must also examine whether EPA exercised its authority “in
    53
    a reasonable manner.” Monroe Energy, 750 F.3d at 920.
    Answering that question requires us to decide whether EPA
    adequately “considered various ways to minimize the hardship
    caused to obligated parties” by virtue of EPA’s delay. Id.; see
    also National Petrochemical, 630 F.3d at 166 (EPA must
    consider and balance any “burdens attendant to its approach”
    of issuing delayed renewable fuel requirements). We conclude
    that EPA passed that test when promulgating the biomass-
    based diesel volume requirements.
    EPA’s approach – and therefore our analysis of the
    question – differs with respect to the 2016 and 2017 volume
    requirements, which applied only prospectively, and the 2014
    and 2015 requirements, which did have retroactive effects. We
    address each set of requirements in turn.
    First, we consider EPA’s decision to promulgate late
    biomass-based diesel requirements for the years 2016 and
    2017. Because those requirements were issued before the start
    of 2016, they did not impose any retroactive compliance
    burdens on obligated parties. Although conceding that point,
    the Obligated Party Petitioners nonetheless argue that EPA’s
    delay burdened obligated parties by leaving them without
    sufficient notice to plan for and meet the 2016 and 2017 volume
    requirements. Given that hardship, the Obligated Party
    Petitioners contend that EPA must set the 2016 and 2017
    volume requirements at the one billion gallon statutory
    minimum or, alternatively, the 1.28 billion gallon volume
    requirement applicable to 2013.
    We do not agree. EPA’s June 2015 proposed rule would
    have set the 2016 and 2017 biomass-based diesel volume
    requirements at 1.8 billion and 1.9 billion gallons, respectively.
    See Renewable Fuel Standard Program: Standards for 2014,
    2015, and 2016 and Biomass-Based Diesel Volume for 2017,
    54
    
    80 Fed. Reg. 33,100
    , 33,105 tbl.I.A-3 & n.13 (June 10, 2015).
    Therefore, contrary to the Obligated Party Petitioners’
    contentions, obligated parties had many months’ notice of
    EPA’s intent to issue volume requirements much higher than
    either the statute’s one billion gallon minimum volume
    requirement or the 1.28 billion gallon volume requirement
    applicable in 2013. See Final Rule, 80 Fed. Reg. at 77,491.
    True, the proposed volume requirements were each 100 million
    gallons less than the final 2016 and 2017 biomass-based diesel
    volume requirements. But as EPA explained, even the late
    Final Rule left obligated parties with 15 months to acquire the
    necessary RINs to comply with the 2016 requirements. See id.
    In 2017, the delay had even less effect: The Final Rule was
    issued more than 13 months before the 2017 compliance year
    even began. Given the industry’s notice of EPA’s intent to
    issue volume requirements greater than the statutory minimum
    and the significant amount of time obligated parties had to
    comply with the 2016 and 2017 requirements, the Obligated
    Party Petitioners have failed to demonstrate how EPA’s delay
    meaningfully affected their ability to satisfy the biomass-based
    diesel obligations. We therefore conclude that EPA reasonably
    exercised its authority when issuing the delayed biomass-based
    diesel volume requirements for 2016 and 2017.
    Second, we consider EPA’s decision to promulgate late
    biomass-based diesel requirements for the years 2014 and
    2015. Those requirements, unlike the 2016 and 2017
    requirements, do have retroactive effects. But in the Final
    Rule, EPA “acknowledged” that fact and reasonably
    considered “ways to minimize the hardship” associated with
    the delayed and retroactive standards. Monroe Energy, 750
    F.3d at 920. Most importantly for present purposes, EPA
    avoided placing an unreasonable burden on obligated parties
    by setting the 2014 and 2015 requirements based on the actual
    volumes of biomass-based diesel available in those years. EPA
    55
    noted that setting the volume requirements at higher volumes
    than those actually available would be an “unreasonable
    approach” in part because it might require “noncompliance” on
    the part of obligated parties. Final Rule, 80 Fed. Reg. at
    77,439. By contrast, EPA’s choice to use actual fuel volumes
    to set the 2014 and 2015 volume requirements ensured that
    there would “be an adequate quantity of RINs available to
    satisfy those portions of the final requirements.” Id. at 77,430;
    see also id. at 77,446-47. Indeed, given that obligated parties
    had been “acquiring RINs since the beginning of 2014 in
    anticipation of the final volume requirements and standards,”
    EPA noted that some obligated parties likely were already in
    compliance with the 2014 and 2015 biomass-based diesel
    standards. Id. at 77,430.
    The Obligated Party Petitioners counter that the fact that
    some obligated parties may find themselves already in
    compliance with the 2014 and 2015 biomass-based diesel
    standards does not mean that all obligated parties would be in
    compliance. Applying the requirements to the parties who had
    not acquired enough RINs to meet the 2014 and 2015
    requirements, according to the Obligated Party Petitioners,
    results in impermissibly retroactive compliance burdens.
    In the Final Rule, EPA gave a number of responses to that
    objection, however. First, EPA stated that parties who need to
    “adjust the types” of RINs they own will be able to do so. Id.
    at 77,491; see also id. at 77,446-47. Those parties “will be able
    to sell” their non-biomass-based diesel advanced biofuel RINs
    “for a nearly identical price” as the biomass-based diesel RINs
    that they will need to purchase. Id. at 77,491. Second, to allow
    obligated parties “additional time” to acquire the biomass-
    based diesel RINs needed for compliance, EPA provided “very
    extensive extensions of the normal compliance demonstration
    deadlines.” Id. at 77,447, 77,491; cf. Monroe Energy, 
    750 F.3d 56
    at 920-21. Third, to the extent that any obligated party could
    not acquire a sufficient number of biomass-based diesel RINs
    to comply with the requirements, EPA noted that the obligated
    party had “two additional compliance flexibility options.”
    Final Rule, 80 Fed. Reg. at 77,491. Specifically, EPA pointed
    out that those parties could (i) utilize carryover biomass-based
    diesel RINs to meet their compliance obligation or (ii) take
    advantage of the “carry-forward deficit provision” of the
    Renewable Fuel Program “to carry forward the deficit for one
    year on the condition that it be met the following year.” Id. at
    77,492; see also id. at 77,447, 77,491.
    EPA’s analysis in the Final Rule reveals that EPA
    “considered various ways to minimize the hardship caused to
    obligated parties” by the delayed issuance of the 2014 and 2015
    biomass-based diesel volume requirements. Monroe Energy,
    750 F.3d at 920. Under our precedents, the Final Rule reflects
    EPA’s reasonable use of its authority to issue delayed
    Renewable Fuel Program volume requirements.
    In short, based on our precedents, we conclude that EPA
    had statutory authority to issue the late biomass-based diesel
    standards and exercised that authority reasonably.
    IV
    We now address the Obligated Party Petitioners’ challenge
    to EPA’s projection of cellulosic biofuel production for the
    year 2016. The Obligated Party Petitioners assert that EPA’s
    projection methodology is arbitrary and capricious in a variety
    of ways. We reject those arguments.
    57
    A
    Before examining the merits of the Obligated Party
    Petitioners’ challenge, it is helpful to have a bit of background
    on: the cellulosic biofuel market; the statutory provisions and
    precedents governing EPA’s duties when making cellulosic
    biofuel projections; and the projection methodology that EPA
    employed in the Final Rule.
    1
    In 2007, Congress amended the Renewable Fuel Program
    to include volume requirements for cellulosic biofuel.
    Cellulosic biofuel is a kind of advanced biofuel. It is derived
    from sources of cellulose, such as switchgrass and agricultural
    wastes, as well as from biogas from landfills, municipal waste-
    water treatment facilities, agricultural digesters, and separated
    municipal solid waste digesters. Cellulosic biofuel is the
    “greenest” form of renewable fuel mandated by the Renewable
    Fuel Program: It must have greenhouse gas emissions that “are
    at least 60 percent less than” the greenhouse gas emissions of
    conventional gasoline or diesel fuel, as determined by EPA. 
    42 U.S.C. § 7545
    (o)(1)(E); see also 
    id.
     § 7545(o)(1)(C); 
    40 C.F.R. § 80.1426
     tbl.1. At the time the cellulosic biofuel requirements
    were introduced by Congress in 2007, “there was no
    commercial-scale production” of cellulosic biofuel “at all.”
    American Petroleum Institute v. EPA, 
    706 F.3d 474
    , 476 (D.C.
    Cir. 2013). In light of the “technological challenges”
    associated with the generation of cellulosic biofuel, the statute
    directs EPA to follow distinct procedures when setting
    cellulosic biofuel standards. 
    Id.
    When setting the annual percentage standards for
    cellulosic biofuel, EPA must first calculate a “projected
    volume of cellulosic biofuel production” for the relevant
    58
    calendar year.      
    42 U.S.C. § 7545
    (o)(7)(D)(i).          Those
    projections must be “based on” the Energy Information
    Administration’s estimate of the volume of “cellulosic biofuel
    projected to be sold or introduced into commerce in the United
    States.” 
    Id.
     § 7545(o)(7)(D)(i), (3)(A). If EPA’s projected
    volume of cellulosic biofuel falls short of the statutory volume
    requirement, then EPA “shall reduce the applicable volume of
    cellulosic biofuel required . . . to the projected volume
    available during that calendar year.” Id. § 7545(o)(7)(D)(i).
    2
    In the Final Rule, EPA projected the amount of cellulosic
    biofuel likely to be produced in 2016. (EPA did not need to
    make projections for 2014 and 2015 because EPA set volume
    requirements for those years based on the actual volumes of
    renewable fuel that were introduced during those years.) In
    making projections for 2016, EPA factored in significant
    changes that had occurred in the development and EPA’s
    regulation of the cellulosic biofuel market in 2014.
    Until 2014, there was only one type of biofuel that
    qualified as “cellulosic biofuel” under the Renewable Fuel
    Program: liquid cellulosic biofuel, “an advanced biofuel
    derived from sources of lignocellulose such as switchgrass and
    agricultural wastes” such as corn stalks. American Petroleum
    Institute, 706 F.3d at 476. As previously discussed, when
    Congress amended the Renewable Fuel Program to include a
    cellulosic biofuel requirement, no company had the
    technological capacity to produce liquid cellulosic biofuel on a
    commercial scale. Indeed, as of late 2013, there were few
    companies in the country that had the potential to consistently
    produce any volumes of cellulosic biofuel.
    59
    In 2014, however, EPA promulgated a rule under which
    certain types of liquefied and compressed natural gas – we will
    refer to both types as “biogas” for simplicity’s sake – could
    qualify as cellulosic biofuels for purposes of the Renewable
    Fuel Program’s requirements. See Regulation of Fuels and
    Fuel Additives: RFS Pathways II, and Technical Amendments
    to the RFS Standards and E15 Misfueling Mitigation
    Requirements, 
    79 Fed. Reg. 42,128
    , 42,137 (July 18, 2014);
    see also Final Rule, 80 Fed. Reg. at 77,499. The technology
    for producing biogas was, and remains, much more widespread
    than the technology for producing liquid cellulosic biofuel. See
    Final Rule, 80 Fed. Reg. at 77,505-06. Indeed, in the Final
    Rule, EPA projected that biogas would make up around 90
    percent of the cellulosic biofuel market in 2016. See id. at
    77,501. In addition, the production of liquid cellulosic biofuel
    increased substantially in 2014 with the opening of new
    commercial-scale liquid cellulosic biofuel production
    facilities. For those reasons, the amount of cellulosic biofuel
    available to meet the Renewable Fuel Program standards has
    substantially increased since late 2014.
    EPA’s approach to projecting the 2016 cellulosic biofuel
    production levels reflects those recent changes to the cellulosic
    biofuel market. As required by statute, EPA first looked to the
    Energy Information Administration’s 2016 cellulosic biofuel
    estimates. But for two reasons, EPA concluded that those
    estimates were incomplete. First, although the estimates
    included projections for liquid cellulosic biofuel, they did not
    include any projections for biogas. See id. at 77,501. That was
    a problem because, as just noted, biogas would make up the
    dominant percentage of the cellulosic biofuel market in 2016.
    Second, the Energy Information Administration’s estimates did
    not include data from certain cellulosic biofuel production
    plants that EPA independently determined to be potential
    sources of cellulosic biofuels in 2016. Compare id. at 77,501
    60
    tbl.IV.B.3, with id. at 77,501 tbl.IV.C-1. Given those
    omissions, EPA was largely on its own when projecting the
    amount of cellulosic biofuel likely to be produced in 2016.
    EPA’s 2016 projection methodology followed a number of
    steps, as described below. At the end of those steps, EPA had
    calculated a total volume projection for each of the two main
    categories of cellulosic biofuel: liquid cellulosic biofuel and
    biogas. EPA then added those two volume amounts together
    to generate a single cellulosic biofuel volume projection for the
    year 2016.
    First, EPA determined which renewable fuel production
    plants had the potential to produce “commercial scale
    volumes” of cellulosic biofuel in 2016. Id. at 77,499; see also
    id. at 77,501 tbl.IV.B.3 (listing projected producers of
    cellulosic biofuel). EPA considered both domestic and foreign
    producers of cellulosic biofuel. See id. at 77,500; see also
    Cellulosic Biofuel Producer Company Descriptions,
    Memorandum from Dallas Burkholder to EPA Air and
    Radiation Docket EPA-HQ-OAR-2015-0111 (Nov. 2015), J.A.
    814.
    Second, EPA divided those producers into four groups:
    (i) liquid cellulosic biofuel producers that have not achieved
    consistent commercial production; (ii) liquid cellulosic biofuel
    producers that have achieved consistent commercial
    production; (iii) biogas producers that have not achieved
    consistent commercial production; and (iv) biogas producers
    that have achieved consistent commercial production. See
    Final Rule, 80 Fed. Reg. at 77,505; id. at 77,508 tbl.IV.F-4.
    Third, EPA calculated a range of likely production from
    each individual cellulosic biofuel producer. See id. at 77,503.
    EPA set the low end of each producer’s range “based on the
    61
    volume of RIN-generating cellulosic biofuel the company has
    produced in the most recent 12 months for which data is
    available.” Id. To arrive at the high end of each producer’s
    range, EPA “considered a variety of factors,” including “the
    expected start-up date and ramp-up period” as well as “facility
    capacity.” Id. EPA used those factors to calculate a high-end
    production volume based on an “optimistic ramp-up scenario”
    of six months. Id. EPA then compared its high-end volume
    estimates to any volume projections provided by the producers
    or industry associations. If the high-end volume projections
    were different, EPA used the lesser of the two volume
    projections. Id. at 77,504.
    Fourth, after EPA had individual ranges for each producer,
    it then aggregated the ranges of the producers by category.
    That is, for each of the four categories of producers, EPA
    generated a single range of likely cellulosic biofuel production.
    See id. at 77,508 tbl.IV.F-1 to tbl.IV.F-4. EPA stated that its
    approach of generating a range for each category helped
    minimize any potential skewing effect caused by an over- or
    under-estimation of a single company’s range. Id. at 77,505-
    06.
    Fifth and finally, EPA chose a specific volume projection
    from within each aggregated production range. EPA did so
    through use of what it called a “percentile” method.8 Under
    that approach, EPA chose a number from within each
    production range that reflected the fact that less-proven
    producers were less likely to produce cellulosic biofuel at the
    high end of their ranges, while the more proven producers were
    8
    Although EPA refers to its approach as the “percentile”
    method, EPA did not utilize “percentiles” as that term is typically
    understood. We nonetheless retain EPA’s terminology for ease of
    reference.
    62
    more likely to do so. Id. at 77,506 & tbl.IV.E-5. In particular,
    EPA chose specific volumes from within each volume range as
    follows: (i) for liquid cellulosic biofuel producers without
    consistent commercial production, EPA chose the value that
    was the one-quarter point between the low end and high end of
    the range; (ii) for liquid cellulosic biofuel producers with
    consistent commercial production, EPA chose the value that
    was the midpoint between the low end and high end of the
    range; (iii) for biogas producers without consistent commercial
    production, EPA also chose the value that was the midpoint
    between the low end and high end of the range; and (iv) for
    biogas producers with consistent commercial production, EPA
    chose the value that was the three-quarter point between the
    low end and high end of the range. Id.
    An example helps illustrate EPA’s approach. Suppose that
    for all four groups of producers, the aggregated ranges of
    projected cellulosic biofuel production are zero to 10 million
    gallons. Under EPA’s approach, the final projected volume
    from each group would be: (i) 2.5 million gallons (25 percent
    of 10 million) for liquid cellulosic biofuel producers without
    consistent commercial production; (ii) five million gallons (50
    percent of 10 million) for liquid cellulosic biofuel producers
    with consistent commercial production; (iii) five million
    gallons (again, 50 percent of 10 million) for biogas producers
    without consistent commercial production; and (iv) 7.5 million
    gallons (75 percent of 10 million) for biogas producers with
    consistent commercial production. Adding those amounts
    together, EPA’s final cellulosic biofuel projection in this
    example would be 20 million gallons.
    Using that methodology, EPA calculated projected
    volumes for each group of producers for the year 2016: (i) 19
    million gallons of liquid cellulosic biofuel from liquid
    cellulosic biofuel producers that have not achieved consistent
    63
    commercial production; (ii) four million gallons of liquid
    cellulosic biofuel from liquid cellulosic biofuel producers that
    have achieved consistent commercial production; (iii) 32
    million gallons of biogas from biogas producers that have not
    achieved consistent commercial production; and (iv) 175
    million gallons of biogas from biogas producers that have
    achieved consistent commercial production. See id. at 77,508
    tbl.IV.F-4. Adding those numbers together, EPA projected a
    final total cellulosic biofuel volume of 230 million gallons – a
    figure 4.02 billion gallons less than the statutory volume
    requirement for 2016. Compare id., with id. at 77,499
    tbl.IV.A-1. The statute was a bit optimistic, to put it
    generously.
    B
    The Obligated Party Petitioners challenge EPA’s 2016
    projections of both liquid cellulosic biofuel and biogas. They
    argue that EPA’s projection methodology failed to take a
    “neutral aim at accuracy” as required by this Court’s decision
    in American Petroleum Institute, 706 F.3d at 476. They also
    argue that certain aspects of EPA’s decisionmaking were
    arbitrary and capricious.
    We employ the deferential State Farm standard of review
    when reviewing arguments based on allegedly arbitrary or
    unreasoned agency action. See Motor Vehicle Manufacturers
    Association of United States, Inc. v. State Farm Mutual
    Automobile Insurance Co., 
    463 U.S. 29
    , 43 (1983). Under that
    standard, EPA “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.” 
    Id.
    (internal quotation marks omitted). In other words, the
    “question is not what we would have done, nor whether we
    agree with the agency action. Rather, the question is whether
    64
    the agency action was reasonable and reasonably explained.”
    Jackson v. Mabus, 
    808 F.3d 933
    , 936 (D.C. Cir. 2015).
    Applying that standard of review, we reject the Obligated Party
    Petitioners’ challenges.
    1
    We first address the Obligated Party Petitioners’ challenge
    to EPA’s liquid cellulosic biofuel projection for 2016. On that
    score, the Obligated Party Petitioners’ central contention is that
    EPA’s 2016 projection methodology fails to take a “neutral aim
    at accuracy” as required by American Petroleum Institute, 706
    F.3d at 476. The Obligated Party Petitioners also raise several
    arbitrary and capricious challenges to EPA’s decisionmaking.
    None of their arguments has merit.
    First, the Obligated Party Petitioners advance an
    overarching argument that EPA’s methodology fails to take a
    “neutral aim at accuracy” as required by this Court’s decision
    in American Petroleum Institute. See id. We do not agree. In
    American Petroleum Institute, the Court evaluated an EPA
    cellulosic biofuel projection methodology that erred on the side
    of overestimation in order to “provide the appropriate
    economic conditions for the cellulosic biofuel industry to
    grow.” Id. at 478. The Court concluded that EPA’s projection
    methodology was improper because it failed to take a “neutral
    aim at accuracy.” Id. at 476. Instead, EPA issued projections
    with a “special tilt” toward promoting cellulosic biofuel
    growth. Id. at 478. Therefore, American Petroleum Institute’s
    requirement that EPA take “neutral aim at accuracy” has a
    distinct meaning: It prevents EPA from using a projection
    methodology with a “special tilt” – that is, a methodology that
    errs on the side of “overestimation” – in order to promote
    growth in the cellulosic biofuel industry. Id. at 476, 478, 479.
    65
    Here, by contrast to American Petroleum Institute, EPA’s
    methodology does not reflect a “non-neutral purpose” to favor
    (or disfavor) growth in the cellulosic biofuel industry. Id. at
    478. Instead, the Obligated Party Petitioners argue that
    particular components of EPA’s methodology, and thus EPA’s
    final projections, are flawed. But those arguments are garden-
    variety arbitrary and capricious challenges directed at EPA’s
    “technocratic exercise of agency discretion.” Id. at 477. They
    do not demonstrate that EPA has violated its duty to take a
    “neutral aim at accuracy,” at least as that duty was articulated
    by this Court in American Petroleum Institute. Id. at 476.
    Second, the Obligated Party Petitioners argue that EPA’s
    decision to use the 2016 liquid cellulosic biofuel projection
    methodology was arbitrary and capricious because EPA’s prior
    projections significantly overestimated the production of liquid
    cellulosic biofuel. Citing American Petroleum Institute, the
    Obligated Party Petitioners contend that EPA’s continued use
    of a methodology that has failed to produce accurate
    projections was arbitrary and capricious. See id. at 477 (“a
    methodology used for prediction” can “look more arbitrary the
    longer it is applied” unsuccessfully) (emphasis omitted). That
    argument, however, is grounded on an incorrect premise:
    EPA’s 2016 projection methodology has not been applied in
    the past. Rather, the majority of EPA’s prior overestimations
    occurred following EPA’s use of the methodology rejected in
    American Petroleum Institute – that is, one that systematically
    erred on the side of overestimation. See id. at 478. Nor does
    EPA’s methodology track the 2014 cellulosic biofuel
    projection methodology originally proposed in the withdrawn
    2014 rule (a methodology that the Obligated Party Petitioners
    contend resulted in overestimation of cellulosic biofuel
    production for the year 2014). Compare Final Rule, 80 Fed.
    Reg. at 77,499-508, with 2014 Standards for the Renewable
    Fuel Standard Program, 
    78 Fed. Reg. 71,732
    , 71,746 (Nov. 29,
    66
    2013); see also Tr. of Oral Arg. at 115. Therefore, contrary to
    the Obligated Party Petitioners’ contention, this is not a
    situation in which EPA has arbitrarily refused to reconsider a
    projection methodology that has proven unsuccessful in the
    past.
    Third, the Obligated Party Petitioners argue that EPA erred
    by relying on liquid cellulosic biofuel producers’ own forecasts
    of their start-up dates. The Obligated Party Petitioners note
    that such facility-provided data has proved unreliable in the
    past. Perhaps so. But EPA took that into account. Rather than
    just blindly adopting the facilities’ own forecasts, EPA
    performed its own investigation of each plant’s ability to
    produce liquid cellulosic biofuel during the year 2016. See
    Final Rule, 80 Fed. Reg. at 77,500-01; Cellulosic Biofuel
    Producer Company Descriptions, Memorandum from Dallas
    Burkholder to EPA Air and Radiation Docket EPA-HQ-OAR-
    2015-0111 (Nov. 2015), J.A. 814; see also Final Rule, 80 Fed.
    Reg. at 77,504 (past experience “strongly suggests that we
    should view the individual company projections as something
    other than the most likely outcomes”). Then, in recognition of
    the challenges in the liquid cellulosic biofuel industry, EPA set
    the volume requirement for new liquid cellulosic biofuel
    producers with the assumption that the producers would
    produce at the lower end of their aggregate volume range. See
    Final Rule, 80 Fed. Reg. at 77,506 tbl.IV.E-5. In doing so, EPA
    reasonably accounted for the uncertainty and unreliability
    identified by the Obligated Party Petitioners.
    Fourth, the Obligated Party Petitioners contend that EPA
    erred by utilizing a six-month “ramp-up” period when
    determining the companies’ production ranges. But EPA
    supported its decision to use a six-month ramp-up period by
    citing the example of a company that had recently “achieved
    levels of production that met and in some cases exceeded the
    67
    nameplate capacity” for liquid cellulosic biofuels “within the
    expected six month ramp-up period.” EPA Response to
    Comments on Final Rule, at 557 (Nov. 2015), J.A. 1005. EPA
    did not impose a six-month ramp-up period across the board,
    moreover. EPA instead set that six-month ramp-up period as
    an “optimistic” scenario that would determine the high end of
    a producer’s volume range. Final Rule, 80 Fed. Reg. at 77,503.
    More importantly, if a company gave a volume projection
    lower than EPA’s high-end volume projection, EPA chose to
    use the company’s projection as the high end of the range. Id.
    at 77,504. Conversely, if the company’s volume projection
    was higher than EPA’s high-end volume projection, EPA stuck
    with its own projection as the high end of the range. Id. EPA’s
    individualized approach to setting the “optimistic” production
    volume scenarios was reasonable.
    Fifth, the Obligated Party Petitioners assert that EPA
    overstated the low end of the established liquid cellulosic
    producers’ volume ranges by relying on data from the most
    recent 12 months of those facilities’ operation. But EPA
    explained that relying on prior data would provide EPA with
    an “objective methodology for calculating the low end of the
    potential production range for each company.” Id. at 77,503.
    Although EPA acknowledged that an unforeseen technical
    problem could prevent a producer from meeting the volume of
    liquid cellulosic biofuel it produced in the prior year, EPA
    concluded that it was reasonable to assume that a company’s
    output would grow year-over-year as the company gained
    experience. See id. Moreover, EPA left room for “exceptions”
    to its reliance on prior years’ data for those cases in which
    “available information indicates” that reliance on that data
    would be improper. Id. EPA therefore fulfilled its duty to
    articulate a “reasonable and reasonably explained” approach to
    setting the low end of the production ranges. Communities for
    68
    a Better Environment v. EPA, 
    748 F.3d 333
    , 335 (D.C. Cir.
    2014).
    Sixth, the Obligated Party Petitioners argue that EPA failed
    to provide a reasoned explanation for its “percentile”
    methodology. That claim is off base. EPA explained the
    details of its percentile approach, including its decision to
    generate total volume ranges for each of the four groups of
    cellulosic biofuel producers. See Final Rule, 80 Fed. Reg. at
    77,502-07. EPA stated that its approach was appropriate in
    light of the “uncertain and variable nature” of cellulosic biofuel
    production. Id. at 77,503. In addition, EPA explained how it
    chose the final volumes for each group of cellulosic biofuel
    producers: It selected volumes based on the differing
    “technology risk” and “challenges” faced by the types of
    companies within each group. Id. at 77,506. EPA’s
    explanation therefore articulates a “rational connection
    between the facts found and the choice made” and is sufficient
    for purposes of our deferential arbitrary and capricious review.
    State Farm, 
    463 U.S. at 43
    .
    Seventh, the Obligated Party Petitioners protest that EPA
    failed to generate a projection “based on” the cellulosic biofuel
    estimates provided by the Energy Information Administration.
    
    42 U.S.C. § 7545
    (o)(3)(B)(i); see also American Petroleum
    Institute, 706 F.3d at 478 (EPA must give sufficient “respect”
    to Energy Information Administration estimates). As EPA
    noted, however, its cellulosic biofuel projections were “very
    similar” to those that were provided by the Energy Information
    Administration when the scope of EPA’s projection was
    limited to the companies assessed by the Energy Information
    Administration. Final Rule, 80 Fed. Reg. at 77,501. EPA
    explained that the majority of the difference between EPA’s
    projections and the Energy Information Administration’s
    estimates was attributable to the fact that EPA examined a
    69
    larger number of cellulosic biofuel producers. Id. Indeed, the
    Energy Information Administration’s estimates did not contain
    figures for compressed and liquefied natural gas production –
    production that accounts for the vast majority of cellulosic
    biofuel. Id. Given those considerations, we do not agree that
    EPA failed to generate projections “based on” the Energy
    Information Administration’s estimates.
    To sum up, we conclude that EPA’s 2016 liquid cellulosic
    biofuel projection took a “neutral aim at accuracy” and was
    otherwise reasonable and reasonably explained for purposes of
    arbitrary and capricious review. We therefore reject the
    Obligated Party Petitioners’ challenges to EPA’s 2016 liquid
    cellulosic biofuel projection.
    2
    The Obligated Party Petitioners also argue that EPA’s
    2016 projection of biogas production was arbitrary and
    capricious for three reasons. We again disagree.
    First, the Obligated Party Petitioners claim that EPA’s
    “percentile” methodology is inadequately explained. That
    argument fails for the same reasons given in the previous
    section.     EPA adequately explained its methodology,
    including: (i) EPA’s decision to divide cellulosic biofuel
    producers into four groups; (ii) the way in which EPA
    calculated total volume ranges for each group; and (iii) EPA’s
    use of the mid-point and three-quarter-point approach when
    calculating the volume requirement for each group of biogas
    producers. See Final Rule, 80 Fed. Reg. at 77,504-06. In
    addition, EPA reasonably explained that it chose to set the
    volumes at the mid-point and three-quarter-point for each set
    of producers based on data and comments it received as well as
    the fact that many of the biogas producers had commercial
    70
    experience generating biogas and employed well-tested
    technology. Id. EPA’s explanation is reasonable for purposes
    of arbitrary and capricious review.
    Second, the Obligated Party Petitioners argue that EPA’s
    projections overlook the fact that many biogas producers are
    incapable of producing the type of transportation-grade
    cellulosic biofuel that is required to generate RINs and satisfy
    the Renewable Fuel Program’s requirements. However, EPA
    limited its analysis of biogas producers to those producers that
    had the capacity to generate cellulosic biofuel RINs. See
    November 2015 Assessment of Cellulosic Biofuel Production
    from Biogas (2015-2016), Memorandum from Dallas
    Burkholder to Air and Radiation Docket EPA-HQ-OAR-2015-
    0111 (Nov. 2015), J.A. 821; see also Final Rule, 80 Fed. Reg.
    at 77,501 n.205. So that challenge fails.
    Third, the Obligated Party Petitioners take issue with
    EPA’s reliance on a biogas estimate provided by the Coalition
    for Renewable Natural Gas. But EPA noted that it did “not
    think it would be appropriate to simply adopt” the Coalition’s
    projections. EPA Response to Comments on Final Rule, at 569
    (Nov. 2015), J.A. 1017. EPA instead reached its own
    projections applying the reasonable projection methodology
    discussed above. So that claim is likewise without merit.9
    9
    The Obligated Party Petitioners also ask this Court to remand
    the cellulosic biofuel projections to EPA because EPA failed to
    disclose critical information – namely, 2014 and 2015 production
    data for the separate categories of liquid cellulosic biofuel and
    biogas – when EPA promulgated the Final Rule. By statute, to
    prevail on that type of a procedural argument, the Obligated Party
    Petitioners must show that EPA’s alleged failure to disclose that data
    was “so serious” that there is a “substantial likelihood that the rule
    would have been significantly changed if” EPA had disclosed the
    data. 
    42 U.S.C. § 7607
    (d)(8); see 
    id.
     § 7607(d)(9)(D)(iii). The
    71
    We conclude that EPA’s biogas projection for 2016 was
    reasonable and adequately explained. We therefore reject the
    Obligated Party Petitioners’ arbitrary and capricious
    challenges to that projection.
    V
    In this section, we consider National Biodiesel Board’s
    challenge to EPA’s interpretation and use of its cellulosic
    waiver authority to lower the advanced biofuel volume
    requirements for the years 2014, 2015, and 2016. EPA
    interpreted the cellulosic waiver provision as granting the
    agency broad discretion to consider a variety of factors –
    including demand-side constraints in the advanced biofuels
    market – when determining whether to exercise its cellulosic
    waiver authority. National Biodiesel Board argues that EPA’s
    interpretation is contrary to the statute. National Biodiesel
    Board also asserts that EPA’s calculation of the volume of
    advanced biofuel likely to be available in 2016 was arbitrary
    and capricious. Both arguments are without merit.
    A
    As explained in the previous section, Congress enacted a
    number of provisions that EPA must follow when setting
    cellulosic biofuel volume requirements under the Renewable
    Fuel Program. EPA must first project the amount of cellulosic
    biofuel likely to be produced in the relevant calendar year. See
    
    42 U.S.C. § 7545
    (o)(7)(D)(i). If that EPA projection falls short
    of the statutory volume requirement for cellulosic biofuel, then
    Obligated Party Petitioners have failed to articulate how EPA’s
    alleged error in omitting the 2014 and 2015 data satisfies that
    heightened standard.
    72
    EPA “shall reduce” the cellulosic biofuel volume requirement
    “to the projected volume available during that calendar year.”
    
    Id.
    EPA’s reduction of the cellulosic biofuel volume
    requirement triggers its authority under the “cellulosic waiver
    provision.” That provision states: “For any calendar year in
    which” EPA reduces the cellulosic biofuel volume
    requirement, EPA “may also reduce” the total renewable fuel
    and advanced biofuel volume requirements “by the same or a
    lesser volume.” 
    Id.
     The cellulosic waiver provision reflects
    the nested nature of the renewable fuel categories: Because
    cellulosic biofuel is a subcategory of advanced biofuel, a
    reduction to the cellulosic biofuel volume requirement leaves a
    gap in the supply of advanced biofuel available to satisfy the
    advanced biofuel volume requirement.                  See 
    id.
    § 7545(o)(1)(B)(ii).
    In the Final Rule, EPA determined that the cellulosic
    biofuel levels would fall short of the statutory requirements for
    the years 2014, 2015, and 2016. See Final Rule, 80 Fed. Reg.
    at 77,422; see also Part IV, supra.10 As required by statute,
    EPA reduced the cellulosic biofuel volume requirements for
    those years. See Final Rule, 80 Fed. Reg. at 77,499.
    Specifically, EPA reduced the statutory volume requirements
    by 1.72 billion gallons for 2014; by 2.88 billion gallons for
    2015; and by 4.02 billion gallons for 2016. See id. By statute,
    EPA’s reduction of the cellulosic biofuel volume requirements
    meant that the agency had discretion to reduce the volume
    10
    By the time EPA issued the Final Rule in December 2015, all
    of 2014 and most of 2015 had passed. For that reason, EPA chose to
    base its cellulosic biofuel “projections” for those years on the actual
    number of cellulosic biofuel RINs generated. See Final Rule, 80 Fed.
    Reg. at 77,439. We considered issues relating to EPA’s late issuance
    of the Final Rule above in Part III.
    73
    requirements for advanced biofuel and total renewable fuel
    using its cellulosic waiver authority.
    EPA noted that it had “broad discretion” to determine
    “when and under what circumstances” to use its cellulosic
    waiver authority. Id. at 77,434 (citing Monroe Energy, LLC v.
    EPA, 
    750 F.3d 909
    , 915 (D.C. Cir. 2014)). EPA stated,
    however, that it would reduce the advanced and total renewable
    fuel volume requirements through use of the cellulosic waiver
    authority only if it had a “substantial justification” to do so. 
    Id.
    A “substantial justification” would exist, according to EPA, if
    EPA determined that the reduction in cellulosic biofuel would
    create a gap in the Nation’s supply of renewable fuel that could
    not be filled with other (non-cellulosic) types of advanced
    biofuel. 
    Id.
     To make that determination, EPA stated that it
    would consider a variety of factors, including supply-side
    constraints on the production and import of advanced biofuels
    as well as demand-side limitations on the ability of the market
    to use advanced biofuel. See 
    id.
    In the Final Rule, EPA considered those supply-side and
    demand-side factors. After doing so, EPA determined that
    “constraints (including distribution and infrastructure
    constraints) that limit the use of non-cellulosic advanced
    biofuels” would prevent those fuels from completely filling the
    gap created by the reduction in cellulosic biofuel. 
    Id.
    According to EPA, because the market could not support
    consumption of the advanced biofuel volumes required by the
    statute, setting the volumes at the statutory targets would only
    lead to “noncompliance and/or additional petitions for a waiver
    of the standards.” 
    Id. at 77,442
    . EPA therefore decided to use
    its cellulosic waiver authority “to reduce the advanced biofuel
    applicable volume to a level” that the agency determined “to
    be reasonably attainable” in the renewable fuel market. 
    Id. at 77,434
    . Specifically, EPA reduced the statutory volume of
    74
    advanced biofuel by 1.08 billion gallons for 2014; by 2.62
    billion gallons for 2015; and by 3.64 billion gallons for 2016.
    Compare 
    id. at 77
    ,424 tbl.I.A-1, with 
    id. at 77
    ,432 tbl.II-1.
    National Biodiesel Board challenges EPA’s interpretation
    and use of its cellulosic waiver authority to reduce the
    advanced biofuel requirements. National Biodiesel Board also
    contends that EPA’s calculations of the supply of advanced
    biofuel likely to be available in 2016 were arbitrary and
    capricious. We now address, and reject, those arguments in
    turn.11
    B
    We first consider National Biodiesel Board’s challenge to
    EPA’s interpretation and use of its cellulosic waiver authority.
    National Biodiesel Board argues that EPA’s interpretation –
    under which EPA considered demand-side constraints in the
    market for advanced biofuels when considering whether to
    make reductions under the cellulosic waiver provision –
    exceeds EPA’s statutory authority. We do not agree.
    This Court previously considered the scope of the
    cellulosic waiver provision in Monroe Energy, LLC v. EPA,
    11
    In “prior actions,” EPA interpreted the cellulosic waiver
    provision “as authorizing EPA to reduce both total renewable fuel
    and advanced biofuel, by the same amount, if EPA reduces the
    volume of cellulosic biofuel.” Final Rule, 80 Fed. Reg. at 77,433.
    EPA therefore reduced the volume requirements for total renewable
    fuel by the same amounts as it reduced the volume requirements for
    advanced biofuel. Id. at 77,434. National Biodiesel Board does not
    challenge that facet of EPA’s interpretation of the cellulosic waiver
    provision nor EPA’s reduction of the total renewable fuel volume
    requirements. We therefore focus on EPA’s reduction of the
    advanced biofuel statutory volume requirements.
    75
    
    750 F.3d 909
     (D.C. Cir. 2014). The Court noted that, in
    contrast to other EPA waiver authorities, the text of the
    cellulosic waiver provision does not “prescribe any factors that
    EPA must consider in making its decision” about whether to
    use its cellulosic waiver authority. 
    Id. at 915
    . Given “the
    absence of any express or implied statutory directive to
    consider particular factors,” the Monroe Energy Court said that
    EPA “reasonably concluded that it enjoys broad discretion
    regarding whether and in what circumstances to reduce the
    advanced biofuel and total renewable fuel volumes under the
    cellulosic biofuel waiver provision.” 
    Id.
     Applying that
    principle, the Court approved EPA’s decision to consider the
    “ability of” advanced biofuels “to be consumed” in the market
    when determining whether to exercise its cellulosic waiver
    authority. 
    Id. at 916
    .
    Citing Monroe Energy, EPA asserts that its interpretation
    of the cellulosic waiver provision – including EPA’s reading of
    the provision as granting it authority to consider demand-side
    constraints on the market for advanced biofuels – is permissible
    under the statute.
    National Biodiesel Board disagrees. It states that EPA’s
    interpretation of the cellulosic waiver provision circumvents
    the limits that Congress placed on EPA’s authority. According
    to National Biodiesel Board, EPA’s discretion under the
    cellulosic waiver provision is limited by the other waiver
    provisions in the statute – including, as relevant here, the
    “inadequate domestic supply” prong of EPA’s general waiver
    provision. See 
    42 U.S.C. § 7545
    (o)(7)(A)(ii). Under National
    Biodiesel Board’s reading of the cellulosic waiver provision,
    EPA has the authority to reduce the advanced biofuel volume
    requirements if – and only if – there is an inadequate supply of
    advanced biofuel in the market to meet those statutory
    volumes. National Biodiesel Board argues that EPA cannot
    76
    consider demand-side constraints on the ability of the market
    to consume advanced biofuel because doing so would
    contravene the limitations in EPA’s general waiver provision.
    In our view, EPA has the better of the argument. The text
    of the cellulosic waiver provision, the structure of the
    Renewable Fuel Program, and this Court’s decision in Monroe
    Energy all point in the same direction: The cellulosic waiver
    provision grants EPA “broad discretion” to consider a variety
    of factors – including constraints on the demand for advanced
    biofuel – when determining “whether and in what
    circumstances” to reduce the advanced biofuel volume
    requirement. Monroe Energy, 750 F.3d at 915.
    We start with the text of the cellulosic waiver provision.
    That text places only one limitation on EPA’s cellulosic waiver
    authority: Any reduction EPA makes to the advanced biofuel
    or total renewable fuel volume requirements may not exceed
    the amount of EPA’s reduction to the cellulosic biofuel volume
    requirement. See 
    42 U.S.C. § 7545
    (o)(7)(D)(i). Beyond that,
    the provision does not “prescribe any factors that EPA must
    consider in making its decision” to lower the advanced biofuel
    or total renewable fuel volume requirements. Monroe Energy,
    750 F.3d at 915. Where, as here, “a statute is silent with respect
    to all potentially relevant factors, it is eminently reasonable to
    conclude that the silence is meant to convey nothing more than
    a refusal to tie the agency’s hands.” Id. (quoting Catawba
    County v. EPA, 
    571 F.3d 20
    , 37 (D.C. Cir. 2009)).
    Structural considerations also support EPA’s reading of
    the cellulosic waiver provision. As just discussed, the
    cellulosic waiver provision does not contain “any express or
    implied statutory directive to consider particular factors.” 
    Id.
    By contrast, other waiver provisions in nearby subsections of
    the statute detail the considerations and procedural steps that
    77
    EPA must take before waiving fuel requirements. See, e.g., 
    42 U.S.C. § 7545
    (o)(7)(A) (EPA may lower total renewable fuel
    volumes based on determination “after public notice and
    opportunity for comment” (i) that requirements would
    “severely harm the economy or environment of a State, a
    region, or the United States” or (ii) that there is “inadequate
    domestic supply” of renewable fuel); 
    id.
     § 7545(o)(7)(E)(ii)
    (EPA may lower biomass-based diesel requirements upon
    determination “that there is a significant renewable feedstock
    disruption or other market circumstances that would make the
    price of biomass-based diesel fuel increase significantly”). In
    addition, even though the cellulosic waiver provision cross-
    references two other statutory provisions, it does not cross-
    reference or otherwise incorporate by reference any limitations
    on EPA’s waiver authority. See id. § 7545(o)(7)(D)(i). The
    fact that Congress knew how to cabin EPA’s discretion or
    reference other statutory provisions when it wanted to do so –
    and did not pursue either of those “ready alternative[s]” in the
    cellulosic waiver provision – further confirms that the
    cellulosic waiver provision means what it says. Advocate
    Health Care Network v. Stapleton, 
    137 S. Ct. 1652
    , 1659, slip
    op. at 8 (2017).12
    12
    National Biodiesel Board counters with a structural argument
    of its own. Positing that “Congress presumably intended” the
    general waiver provision and cellulosic waiver provision “to
    harmonize without specifically cross-referencing the two,” National
    Biodiesel Board contends that EPA’s interpretation must be wrong
    because it renders the “inadequate domestic supply” prong of the
    general waiver provision superfluous. National Biodiesel Board
    Reply 4. National Biodiesel Board is correct that our reading of the
    cellulosic waiver provision allows EPA to reduce the advanced
    biofuel or total renewable fuel volume requirements based on factors
    it cannot consider for purposes of the “inadequate domestic supply”
    provision. But that result follows from the fact that Congress chose
    78
    Our precedents accord with the text and structure of the
    statute. Observing that the text of the cellulosic waiver
    provision does not direct EPA to “consider particular factors,”
    the Monroe Energy Court held that EPA enjoys broad
    discretion regarding “whether and in what circumstances to
    reduce the advanced biofuel and total renewable fuel volumes”
    under the cellulosic waiver provision. 750 F.3d at 915.
    Applying that interpretation, the Court approved EPA’s
    decision to consider “the ability of” advanced biofuels “to be
    consumed” for purposes of determining whether to exercise the
    cellulosic waiver authority. Id. at 916; see also id. (EPA
    permissibly considered “the constraints imposed by the E10
    blendwall” when deciding whether to use cellulosic waiver
    authority). That same reasoning controls here: EPA had
    discretion to consider “a range of factors” in determining
    whether to exercise its cellulosic waiver authority, including
    demand-side constraints that affect “the ability” of advanced
    biofuels “to be consumed.” Id.
    National Biodiesel Board attempts to distinguish Monroe
    Energy on the basis that EPA in that case declined to use its
    cellulosic waiver authority. National Biodiesel Board points
    out that courts generally give more deference to an agency’s
    failure to act than to an agency’s decision to act, and that
    Monroe Energy should be read in light of that principle. See
    Tr. of Oral Arg. at 31 (citing Heckler v. Chaney, 
    470 U.S. 821
    (1985)). According to National Biodiesel Board, this Court
    should adopt a different rule for cases in which EPA chooses
    to make reductions under the cellulosic waiver provision.
    to grant EPA two textually distinct waiver authorities that operate in
    different scenarios pursuant to different limitations.
    79
    We are not persuaded. Nothing in the Monroe Energy
    Court’s discussion of the cellulosic waiver provision turned on
    the fact that EPA was declining to exercise its authority in that
    case. Rather, the Court relied on the text of the cellulosic
    waiver provision itself, which grants EPA “broad discretion
    regarding whether and in what circumstances to reduce the
    advanced biofuel and total renewable fuel volumes under the
    cellulosic biofuel waiver provision.” Monroe Energy, 750 F.3d
    at 915 (emphasis added). Neither the text of the cellulosic
    waiver provision – nor the Monroe Energy Court’s
    interpretation of that text – supports the position that EPA’s
    cellulosic waiver authority is narrower when EPA actually
    wants to use it.
    National Biodiesel Board’s argument boils down to the
    contention that “any result consistent with” its “account of the
    statute’s overarching goal must be the law.” Henson v.
    Santander Consumer USA Inc., 
    137 S. Ct. 1718
    , 1725, slip op.
    at 9 (2017). We take a different approach, instead presuming
    that “the legislature says what it means and means what it
    says.” 
    Id.,
     slip op. at 10 (internal quotation mark and
    alterations omitted). Applying the cellulosic waiver provision
    that Congress chose to enact, we conclude that EPA’s decision
    to lower the advanced biofuel volumes for the years 2014,
    2015, and 2016 was within the agency’s discretion and
    otherwise lawful.13
    13
    National Biodiesel Board also contends that EPA erred
    because it determined the amount of advanced biofuel available in
    the market only after determining the appropriate requirements for
    total renewable fuel. That is not accurate. EPA explained that its
    “assessment of the use of the cellulosic waiver authority alone
    focused on a case in which advanced biofuel and total renewable fuel
    are both reduced only to the degree necessary to yield an appropriate
    volume of advanced biofuel.” Final Rule, 80 Fed. Reg. at 77,443.
    Based on an analysis of the projected production and import of
    80
    C
    On the way to determining whether to use its cellulosic
    waiver authority, EPA calculated the volume of advanced
    biofuel that was “reasonably attainable” in the market in 2016.
    Final Rule, 80 Fed. Reg. at 77,476. EPA did so by taking into
    account supply-side and demand-side constraints in the
    markets for different types of advanced biofuel, including
    (i) advanced ethanol, the largest source of which is sugarcane
    ethanol from Brazil, and (ii) advanced biodiesel and renewable
    diesel. National Biodiesel Board raises three arbitrary and
    capricious challenges to EPA’s calculation of the volume of
    advanced biofuel “reasonably attainable” in the market in
    2016. National Biodiesel Board argues that: (i) EPA failed to
    articulate a clear standard for setting advanced biofuel
    volumes; (ii) EPA provided no support for its assessment of
    projected imports of sugarcane ethanol from Brazil; and
    (iii) EPA did not address data showing that biomass-based
    diesel was available in greater volumes than EPA estimated.
    To survive arbitrary and capricious review, as we have
    said, an agency decision must be “reasonable and reasonably
    advanced biofuel, as well as market constraints on the ability of
    advanced biofuel to be used, EPA determined that the “reasonably
    attainable” supply of advanced biofuel in 2016 was 3.61 billion
    gallons – an amount that was 3.64 billion gallons short of the
    statutory volume of advanced biofuel. See id. at 77,443-44. Only
    after deriving the advanced biofuel projection did EPA reduce the
    advanced biofuel statutory volume amount to match that projection.
    EPA then explained that it was making the same 3.64 billion gallon
    reduction to the total renewable fuel volume requirement. See id. at
    77,444 & tbl.II.B.6-1. It was therefore the available volumes of
    advanced biofuel – not total renewable fuel – that drove EPA’s
    cellulosic waiver decision. Id. at 77,443.
    81
    explained.” Communities for a Better Environment v. EPA,
    
    748 F.3d 333
    , 335 (D.C. Cir. 2014); see also Motor Vehicle
    Manufacturers Association of United States, Inc. v. State Farm
    Mutual Automobile Insurance Co., 
    463 U.S. 29
    , 43 (1983) (An
    agency “must examine the relevant data and articulate a
    satisfactory explanation for its action.”). Applying that
    deferential standard, we reject National Biodiesel Board’s
    arguments.
    First, we disagree with National Biodiesel Board that EPA
    failed to reasonably explain its standard for setting advanced
    biofuel volumes. National Biodiesel Board focuses on EPA’s
    statement that it was setting the advanced biofuel volume
    requirement at a “reasonably attainable” level, as if that were
    the only explanation given by EPA in the Final Rule. But EPA
    explained at length the various factors it considered when
    calculating the “reasonably attainable” volume of advanced
    biofuel, including, among other things: (i) the quantity of
    feedstock available to produce advanced biofuel, see Final
    Rule, 80 Fed. Reg. at 77,466; (ii) production capacity of the
    facilities capable of producing advanced biofuel, see id. at
    77,467; (iii) advanced biofuel import capacity, see id. at
    77,467-69; and (iv) the market’s capacity to produce,
    distribute, and consume biomass-based diesel, see id. at
    77,470-75. EPA’s detailed explanation of its method for
    determining the “reasonably attainable” volume of advanced
    biofuel was “satisfactory,” to say the least. State Farm, 
    463 U.S. at 43
    .
    Second, we reject National Biodiesel Board’s argument
    that EPA acted unreasonably by failing to explain its projection
    of the amount of sugarcane ethanol that was likely to be
    imported from Brazil in 2016. According to National Biodiesel
    Board, EPA erred when it concluded that only 200 million
    gallons of sugarcane ethanol would be imported from Brazil.
    82
    National Biodiesel Board argues that EPA’s projection placed
    too much emphasis on the “low levels of imports seen in 2014
    and 2015” because no advanced biofuel standards were in place
    for those years – a fact that drove down advanced biofuel
    imports. Final Rule, 80 Fed. Reg. at 77,478. EPA did point to
    data showing that imports of sugarcane ethanol from Brazil
    were on the decline, having reached only 64 million gallons in
    2014 and approximately 55 million gallons in 2015. But EPA
    did not rely solely on that historical data to reach its
    projections. Rather, EPA examined a number of factors
    affecting Brazil’s exports of sugarcane ethanol into the United
    States. Those factors included “total gasoline consumption in
    Brazil,” which EPA explained was outpacing the growth rate
    of sugarcane ethanol production, as well as the “worldwide
    demand for sugar.” Id. at 77,477, 77,478. Citing all of those
    considerations, EPA concluded that “a somewhat lower level
    of imports will occur than the historic average” of 300 million,
    and EPA opted to set the projection at 200 million instead. Id.
    at 77,478. That conclusion was “reasonable and reasonably
    explained” for purposes of arbitrary and capricious review.
    Communities for a Better Environment, 748 F.3d at 335.
    Third, we disagree with National Biodiesel Board that
    EPA’s projection of the available amounts of biomass-based
    diesel was arbitrary and capricious. National Biodiesel
    Board’s basic contention on this point is that EPA ignored
    factors showing that the market could supply a higher volume
    of biomass-based diesel than the volume determined by EPA.
    In particular, EPA allegedly overlooked factors related to
    biomass-based diesel production capacity, import capacity,
    distribution capacity, and consumption capacity.
    On the contrary, however, EPA did discuss “the many
    different factors that may constrain the supply of biodiesel and
    renewable diesel in 2016.” Final Rule, 80 Fed. Reg. at 77,466.
    83
    EPA explained that production capacity was constrained by the
    limited availability of biomass-based diesel feedstock and by
    the middling utilization rates of biomass-based diesel
    production facilities. See id. at 77,466-67. EPA also explained
    its considerations regarding import capacity. Although EPA
    conceded that the amount of biodiesel imports “is difficult to
    predict,” EPA walked through a number of factors to support
    its projection of biomass-based diesel imports. Id. at 77,468.
    Those factors included, among other things: historical data on
    imports; the considerations that would lead other countries to
    export their fuel to the United States; and whether the imports
    from foreign countries would qualify as biomass-based diesel.
    See id. at 77,468-70. EPA also discussed the assorted
    constraints on distribution capacity – such as limitations on
    transporting biodiesel through existing pipelines, the need for
    specialized storage facilities to preserve biodiesel in winter
    months, and the minimal number of retailers that sell biodiesel
    – that prevent biomass-based diesel from getting to consumers.
    See id. at 77,470-71. Finally, EPA noted that many engine
    manufacturers do not warrant the use of certain biomass-based
    diesel fuels, a fact that further constrains the consumption of
    biomass-based diesel by consumers. Id. at 77,471-72.
    EPA’s analysis, more of which appears in the Final Rule,
    demonstrates that EPA fulfilled its duty to “examine the
    relevant data and articulate a satisfactory explanation for” its
    biomass-based diesel projections, “including a rational
    connection between the facts found and the choice made.”
    State Farm, 
    463 U.S. at 43
     (internal quotation marks omitted).
    In such a situation, this Court “is not to substitute its judgment”
    (nor National Biodiesel Board’s) “for that of the agency.” 
    Id.
    We conclude that EPA’s calculation of the volume of
    advanced biofuel “reasonably attainable” in the market in 2016
    was not arbitrary or capricious. Final Rule, 80 Fed. Reg. at
    84
    77,476. We reject National Biodiesel Board’s arguments to the
    contrary.
    VI
    The final issue raised by the Obligated Party Petitioners is
    whether EPA was required to consider the appropriateness of
    the current “point of obligation” – that is, EPA’s choice to
    apply the statute’s renewable fuel requirements to refiners and
    importers, but not blenders – in the Final Rule.
    The Obligated Party Petitioners argue that EPA’s failure
    to reconsider the point of obligation requires us to remand the
    Final Rule to the agency. But we need not decide whether a
    remand is required because, as discussed in Part II, we are
    already remanding the Final Rule to EPA for further
    proceedings in light of our interpretation of the “inadequate
    domestic supply” waiver provision. With the Final Rule back
    before the agency, EPA will have an opportunity to address the
    Obligated Party Petitioners’ arguments regarding the point of
    obligation.    In addition, EPA is currently considering
    comments on its proposed denial of a set of petitions – petitions
    filed by some of the Obligated Party Petitioners – seeking
    reconsideration of EPA’s current point of obligation
    regulation. See Notice of Opportunity to Comment on
    Proposed Denial of Petitions for Rulemaking to Change the
    RFS Point of Obligation, 
    81 Fed. Reg. 83,776
     (Nov. 22, 2016).
    Given the stage of that proceeding, we leave it up to EPA to
    determine whether to address the point of obligation issue
    there, on remand in this case, or in both proceedings.
    ***
    We agree with Americans for Clean Energy that the statute
    forecloses EPA’s reading of the “inadequate domestic supply”
    85
    waiver provision. We therefore grant Americans for Clean
    Energy’s petition for review of the 2015 Final Rule, vacate
    EPA’s decision in the Rule to reduce the total renewable fuel
    volume requirements for 2016 through use of the “inadequate
    domestic supply” waiver authority, and remand the rule to EPA
    for further consideration in light of our interpretation.
    We have considered all of the parties’ other arguments and
    have found them to be without merit. We deny the remainder
    of the petitions for review.
    So ordered.