American Fuel & Petrochemical v. EPA ( 2019 )


Menu:
  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued February 20, 2019           Decided September 6, 2019
    No. 17-1258
    AMERICAN FUEL & PETROCHEMICAL MANUFACTURERS,
    PETITIONER
    v.
    ENVIRONMENTAL PROTECTION AGENCY,
    RESPONDENT
    SMALL RETAILERS COALITION, ET AL.,
    INTERVENORS
    Consolidated with 18-1027, 18-1040, 18-1041
    On Petitions for Review of an Action of the
    United States Environmental Protection Agency
    Thomas A. Lorenzen and Samara L. Kline argued the
    causes for Obligated Petitioners. Suzanne Murray argued the
    cause for petitioner-intervenor Small Retailers Coalition. With
    them on the briefs were Julie R. Domike, Michael J. Scanlon,
    Richard S. Moskowitz, Robert J. Meyers, Elizabeth B. Dawson,
    Megan H. Berge, Lisa M. Jaeger, Brittany M. Pemberton, and
    Clara Poffenberger. Evan A. Young entered an appearance.
    2
    Bryan M. Killian argued the cause for petitioner National
    Biodiesel Board. With him on the briefs was Douglas A.
    Hastings.
    Devorah Ancel argued the cause for Environmental
    Petitioners. With her on the briefs was Eric Huber.
    Benjamin R. Carlisle, Attorney, and Michael R. Eitel,
    Senior Trial Attorney, U.S. Department of Justice, argued the
    causes for respondent. With them on the brief were Jeffrey H.
    Wood, Acting Assistant Attorney General, Jonathan D.
    Brightbill, Deputy Assistant Attorney General, and David P.W.
    Orlin, Attorney, U.S. Environmental Protection Agency.
    Thomas Allen Lorenzen argued the cause for intervenors
    in support of respondent responding to National Biodiesel
    Board. With him on the brief were Robert A. Long Jr., Kevin
    King, Stacy Linden, Richard S. Moskowitz, Robert J. Meyers,
    and Elizabeth B. Dawson. David Y. Chung and John P. Wagner
    entered appearances.
    Seth P. Waxman, David M. Lehn, Saurabh Sanghvi, Claire
    H. Chung, Robert A. Long, Jr., Kevin King, Matthew W.
    Morrison, Bryan M. Stockton, Bryan M. Killian, and Douglas
    A. Hastings were on the brief for intervenors Growth Energy,
    et al. in support of respondent.
    Matthew W. Morrison, Bryan M. Stockman, Seth P.
    Waxman, David M. Lehn, Saurabh Sanghvi, Claire H. Chung,
    Bryan M. Killian, and Douglas A. Hastings were on the brief
    for intervenors Renewable Fuels Association, et al. in support
    of respondent.
    Before: HENDERSON, TATEL, and GRIFFITH, Circuit
    Judges.
    3
    Opinion for the Court filed PER CURIAM.
    PER CURIAM: The Clean Air Act’s Renewable Fuel
    Program mandates that certain amounts of renewable fuel must
    be introduced into the U.S. fuel supply each year. In late 2017,
    the EPA promulgated its final 2018 Rule, which, as in previous
    years, established overall targets for the fuel market and
    imposed individual compliance obligations on fuel refineries
    and importers. These consolidated cases concern various
    challenges to the 2018 Rule. Several petitioners maintain it is
    too strict, others allege it is too lax, and still others argue that
    the EPA failed to follow proper procedures in its promulgation.
    We conclude that all these challenges lack merit, except for
    one: that the EPA violated its obligations under the Endangered
    Species Act by failing to determine whether the 2018 Rule may
    affect endangered species or critical habitat. We therefore grant
    the petition for review filed by the Gulf Restoration Network
    and Sierra Club and remand the 2018 Rule without vacatur for
    the EPA to comply with the Endangered Species Act. We deny
    all other petitions for review.
    I.   Background
    A. The Renewable Fuel Program
    Enacted in 2005 and amended in 2007, the Renewable
    Fuel Program (the “Program” or “RFS Program”), alternatively
    called the Renewable Fuel Standard, was designed “[t]o move
    the United States toward greater energy independence and
    security” and “to increase the production of clean renewable
    fuels.” Energy Independence and Security Act of 2007, Pub. L.
    No. 110-140, pmbl., 121 Stat. 1492, 1492; see also id. §§ 201–
    210 (amending the Program); Energy Policy Act of 2005, Pub.
    L. No. 109-58, § 1501, 119 Stat. 594, 1067–76 (enacting the
    Program). To accomplish these goals, the Program regulates
    4
    suppliers through “applicable volume[s]”—mandatory and
    annually increasing quantities of renewable fuels that must be
    “introduced into commerce in the United States” each year—
    and tasks the EPA Administrator with “ensur[ing]” that those
    annual targets are met. 42 U.S.C. § 7545(o)(2)(A)(i). As we
    explained in Americans for Clean Energy v. EPA, “[b]y
    requiring upstream market participants . . . to introduce
    increasing volumes of renewable fuel into the 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.” 
    864 F.3d 691
    , 705 (D.C. Cir. 2017) (first quoting Renewable Fuel
    Standard Program: Standards for 2014, 2015, and 2016 and
    Biomass-Based Diesel Volume for 2017, 80 Fed. Reg. 77,420,
    77,423 (Dec. 14, 2015); then quoting Monroe Energy, LLC v.
    EPA, 
    750 F.3d 909
    , 917 (D.C. Cir. 2014)).
    The Program specifies annual fuel-volume requirements
    for four overlapping categories of fuel. The first and broadest
    category, “renewable fuel,” includes any “fuel that is produced
    from renewable biomass and that is used to replace or reduce
    the quantity of fossil fuel present in” either “a transportation
    fuel,” 42 U.S.C. § 7545(o)(1)(J), or “home heating oil or jet
    fuel,” id. § 7545(o)(1)(A); see also Regulation of Fuels and
    Fuel Additives: Changes to Renewable Fuel Standard Program,
    75 Fed. Reg. 14,670, 14,687 (Mar. 26, 2010) (including “home
    heating oil” and “jet fuel” within the definition of “renewable
    fuel”). Next are “advanced biofuel[s],” a subset of the
    renewable-fuel category defined as any “renewable fuel, other
    than ethanol derived from corn starch, that has lifecycle
    greenhouse gas emissions . . . at least 50 percent less than” “the
    average lifecycle greenhouse gas emissions . . . for gasoline or
    diesel” as of 2005. 42 U.S.C. § 7545(o)(1)(B)(i), (C). Lastly,
    of the fuels falling under the advanced-biofuel umbrella, the
    Program singles out two in particular: “cellulosic biofuel,” a
    5
    fuel derived from the fibrous parts of plants, see id.
    § 7545(o)(1)(E), and “biomass-based diesel,” a renewable
    substitute for conventional diesel, see id. §§ 7545(o)(1)(D),
    13220(f). Because the definitions of these four fuel categories
    are “nested,” so, too, are their applicable volumes. Ams. for
    Clean Energy, 864 F.3d at 731. As depicted below, the
    Program will double- or even triple-count the more specialized
    fuels, such that one gallon of advanced biofuel simultaneously
    counts as one gallon of renewable fuel, and one gallon of either
    cellulosic biofuel or biomass-based diesel also counts as one
    gallon of both advanced biofuel and renewable fuel.
    The Program lists calendar years and corresponding
    applicable volumes for each type of fuel. These tables run
    through 2022 for renewable fuel, advanced biofuel, and
    cellulosic biofuel; for 2018, the statute mandates applicable
    volumes of 26, 11, and 7 billion gallons, respectively. See 42
    U.S.C. § 7545(o)(2)(B)(i)(I)–(III). In contrast, the Program
    6
    provides applicable volumes for biomass-based diesel through
    only 2012. See id. § 7545(o)(2)(B)(i)(IV). For all later years,
    the statute sets a floor of 1 billion gallons, see id.
    § 7545(o)(B)(i)(IV), (v), and directs the Administrator to
    establish, “no later than 14 months” before the relevant year,
    an applicable volume “based on a review of the implementation
    of the program during” previous years and “an analysis of” six
    other broad factors such as the fuel’s effect on “the
    environment,” “energy security,” and “cost to consumers,” id.
    § 7545(o)(B)(ii).
    Although the statutory tables initially appear to admit no
    exception, their applicable volumes in fact provide only
    starting points. Under certain circumstances, the Program
    grants the Administrator authority to exercise so-called waivers
    to reduce applicable volumes below statutory levels. Three
    waivers are relevant to this case.
    The first waiver is mandatory. The Program requires that
    if in any year “the projected volume of cellulosic biofuel
    production is less than the minimum applicable volume” set by
    statute, then “the Administrator shall reduce the applicable
    volume of cellulosic biofuel . . . to the projected volume
    available during that calendar year.” Id. § 7545(o)(7)(D)(i). Put
    simply, regardless of the applicable volume Congress
    established in the Program, the EPA may require by regulation
    no more cellulosic biofuel than the market is projected to
    provide in any given year.
    The second waiver flows from the first. For any year in
    which the EPA reduces the applicable volume of cellulosic
    biofuel based on a projected shortfall, “the Administrator may
    also reduce the applicable volume of renewable fuel and
    advanced biofuels . . . by the same or a lesser volume.” Id.
    Unlike its mandatory cousin, this “cellulosic waiver” is
    7
    discretionary: if cellulosic biofuel is projected to underperform
    statutory levels, the Administrator may reduce renewable fuel
    and advanced biofuel volumes by the entire cellulosic deficit,
    by some percentage of the shortfall, or by nothing at all. See
    id.; see also Regulation of Fuels and Fuel Additives: 2013
    Renewable Fuel Standards, 78 Fed. Reg. 49,794, 49,810
    (Aug. 15, 2013) (interpreting the cellulosic waiver provision
    “as authorizing [the] EPA to reduce both total renewable fuel
    and advanced biofuel, by the same amounts, if [the] EPA
    reduces the volume of cellulosic biofuel”). Because cellulosic
    biofuel is nested within advanced biofuel, if the Administrator
    exercises anything less than a full cellulosic waiver, other
    advanced biofuels will need to make up for the difference.
    The last waiver, the so-called general waiver, is also
    discretionary. It permits the Administrator to “reduc[e] the
    national quantity of renewable fuel required” by the Program
    “based on a determination” that any of three circumstances
    exist: first, “that implementation of the requirement would
    severely harm the economy . . . of a State, a region, or the
    United States,” 42 U.S.C. § 7545(o)(7)(A)(i); second, “that
    implementation of the requirement would severely harm
    the . . . environment of a State, a region, or the United States,”
    id.; or third, “that there is an inadequate domestic supply,” id.
    § 7545(o)(7)(A)(ii). The Administrator may exercise the
    general waiver in response to a petition by a state or regulated
    party or “on his own motion.” Id. § 7545(o)(7)(A).
    After exercising any waivers and finalizing an applicable
    volume for each type of fuel, the EPA must by November 30
    of each year calculate and promulgate “renewable fuel
    obligation[s] that” will “ensure[] that the [Program’s]
    requirements . . . are met” in the upcoming year. Id.
    § 7545(o)(3)(B)(i). In broad strokes, this task requires the EPA
    to identify the entities responsible for collectively achieving
    8
    applicable volumes, quantify each entity’s individual
    obligation, and ensure those entities’ successful compliance.
    To begin with, there is the threshold question of who,
    exactly, must satisfy renewable fuel obligations—that is, who
    are the “obligated parties”? Although the statute states that
    “[t]he renewable fuel obligation determined for a calendar
    year . . . shall . . . be applicable to refineries, blenders, and
    importers, as appropriate,” id. § 7545(o)(3)(B)(ii)(I), the EPA
    has since the Program’s inception declined to include
    blenders—defined as “part[ies] that simply blend[] renewable
    fuel into gasoline or diesel fuel,” 40 C.F.R. § 80.1406(a)(1)—
    within the definition of “obligated party,” see Regulation of
    Fuels and Fuel Additives: Renewable Fuel Standard Program,
    72 Fed. Reg. 23,900, 23,924 (May 1, 2007) (designating
    obligated parties); Regulation of Fuels and Fuel Additives:
    Changes to Renewable Fuel Standard Program, 75 Fed. Reg. at
    14,721–22 (same). Instead, the EPA defines an obligated party
    as “any refiner that produces gasoline or diesel fuel within the
    48 contiguous states or Hawaii, or any importer that imports
    gasoline or diesel fuel into the 48 contiguous states or Hawaii
    during a compliance period.” 40 C.F.R. § 80.1406(a)(1). The
    Program does, however, permit “small refiner[ies]” to receive
    exemptions from renewable fuel obligations if they
    demonstrate that compliance would inflict “disproportionate
    economic hardship.” 42 U.S.C. § 7545(o)(9)(B).
    Next, each year the EPA must transform its aggregate,
    fuel-sector-wide applicable volumes into individual
    compliance obligations that sum to the requisite whole. To do
    this, the Program instructs the EPA to translate the applicable
    volumes into “percentage[s] of transportation fuel sold or
    introduced into commerce in the United States.” Id.
    § 7545(o)(3)(B)(ii)(II). By dividing the applicable volumes for
    each fuel type by an estimate of the total gasoline and diesel
    9
    volume that will be used in the coming year (subject to some
    adjustments), the EPA generates “percentage standards” which
    then “inform each obligated party of how much renewable fuel
    it must introduce into U.S. commerce based on the volumes of
    fossil-based gasoline or diesel it imports or produces.” Ams. for
    Clean Energy, 864 F.3d at 699; see also 40 C.F.R. § 80.1405(c)
    (setting out the percentage-standard formula). In other words,
    the EPA estimates what percentage of the overall fuel supply
    each renewable-fuel type should constitute and then requires
    each obligated party to replicate those percentages on an
    individual basis.
    Although the nuances of the percentage standard are
    mostly beyond the scope of this case, one feature requires
    mention. When calculating percentage standards for any given
    year, the EPA accounts for any small refineries that have
    received exemptions by requiring non-exempt obligated parties
    to produce proportionally more. See Regulation of Fuels and
    Fuel Additives: 2011 Renewable Fuel Standards, 75 Fed. Reg.
    76,790, 76,805 (Dec. 9, 2010) (explaining that small-refinery
    exemptions “result in a proportionally higher percentage
    standard for remaining obligated parties”). The problem is that
    while the EPA must promulgate annual percentage standards
    by November 30 each year, refineries may petition for an
    exemption “at any time,” 42 U.S.C. § 7545(o)(9)(B)(i), and the
    EPA has no mechanism to adjust renewable fuel obligations to
    account for exemptions granted after each year’s percentage
    standards are finalized. As a result, because the EPA cannot
    ensure that non-exempt obligated parties compensate for the
    renewable-fuel shortfall created by belated exemptions, those
    gallons of renewable fuel simply go unproduced.
    Finally, after the obligated parties have been identified and
    their percentage standards have been set, there remains the
    matter of compliance. The Program does not require each
    10
    obligated party to produce precisely the right mix of fuel itself.
    See id. § 7545(o)(5) (directing the EPA to establish a “[c]redit
    program”). Instead, for every gallon of renewable fuel entering
    the U.S. market, producers and importers may generate a set of
    “Renewable Identification Numbers” (RINs). See 40 C.F.R.
    §§ 80.1426, 80.1429(b) (describing how RINs are “generated”
    and then “separated” from their fuel); Ams. for Clean Energy,
    864 F.3d at 699 (same). Each year, obligated parties must
    generate or purchase enough RINs to meet their renewable fuel
    obligations, which the obligated parties then satisfy by
    “retir[ing]” RINs at an annual compliance demonstration. 40
    C.F.R. § 80.1427. To prevent fuel that ultimately leaves the
    U.S. market from satisfying obligated parties’ renewable fuel
    obligations, the EPA also requires exporters to retire any RINs
    (or an equivalent number of RINs) that were generated by
    exported fuel. See 40 C.F.R. § 80.1430 (listing requirements
    for renewable-fuel exporters). An obligated party lacking
    enough RINs may, under certain circumstances, carry forward
    a deficit, while an obligated party possessing excess RINs may
    save those RINs for the following year. See 42 U.S.C.
    § 7545(o)(5)(B), (D) (addressing the transfer of RINs and the
    ability to carry forward a RIN deficit); 40 C.F.R. § 80.1427(b)
    (addressing “[d]eficit carryovers”); id. § 80.1428(c)
    (addressing “RIN expiration”).
    B. The 2018 Rule
    To fulfill its annual rulemaking obligation under 42 U.S.C.
    section 7545(o)(3)(B)(i), the EPA proposed a rule in July 2017
    to set renewable fuel applicable volumes and percentage
    standards for 2018 and a biomass-based diesel applicable
    volume for 2019. Renewable Fuel Standard Program:
    Standards for 2018 and Biomass-Based Diesel Volume for
    2019 (“Proposed Rule”), 82 Fed. Reg. 34,206 (proposed
    July 21, 2017). The Proposed Rule explained that “[r]eal-world
    challenges, such as the slower-than-expected development of
    11
    the cellulosic biofuel industry, . . . have made the volume
    targets established by Congress for 2018 beyond reach for all
    fuel categories other than [biomass-based diesel].” Id. at
    34,207. The EPA thus proposed reducing the cellulosic biofuel
    applicable volume to match the projected volume of cellulosic
    biofuel available in 2018 and exercising its discretionary
    cellulosic waiver authority to reduce the applicable volumes for
    advanced biofuel and total renewable fuel a corresponding
    amount. Id. at 34,208–10. It determined that the market for
    biomass-based diesel, however, outproduced the minimum
    requirements of the Program and therefore proposed
    maintaining for 2019 its applicable volume for biomass-based
    diesel set for 2018. Id. at 34,210–11.
    The Proposed Rule further solicited comment on three
    other issues. First, although the EPA initially concluded that it
    should not exercise its general waiver authority to reduce
    applicable volumes further, it solicited comment on whether it
    should exercise that authority due to either severe economic
    harm or inadequate domestic supply. Id. at 34,213. Second, it
    solicited comment on how it should account for small refinery
    exemptions when translating the 2018 applicable volumes into
    percentage standards. Id. at 34,241–42. And third, it solicited
    comment on the current RIN trading market. Id. at 34,211. It
    clarified, however, that it was “not soliciting comment on any
    aspect of the current RFS regulatory program other than those
    specifically related to RIN trading . . . and the proposed annual
    standards for 2018 and biomass-based diesel applicable
    volume for 2019.” Id.
    During the comment period, the EPA published
    supplemental information regarding its proposal and requested
    further comment on aspects of the Proposed Rule. See
    Renewable Fuel Standard Program: Standards for 2018 and
    Biomass-Based Diesel Volume for 2019; Availability of
    12
    Supplemental Information and Request for Further Comment
    (“Supplemental Information”), 82 Fed. Reg. 46,174 (Oct. 4,
    2017). In particular, in response to this court’s intervening
    decision in Americans for Clean Energy, 
    864 F.3d 691
    , the
    EPA solicited comment on the meaning of the phrases
    “inadequate domestic supply” and “severe economic harm” in
    the general waiver provision, 42 U.S.C. section 7545(o)(7)(A).
    See Supplemental Information, 82 Fed. Reg. at 46,177–79.
    Over 235,000 comments later, the EPA promulgated its
    final 2018 Rule in December 2017. See Renewable Fuel
    Standard Program: Standards for 2018 and Biomass-Based
    Diesel Volume for 2019 (“2018 Rule”), 82 Fed. Reg. 58,486,
    58,487 (Dec. 12, 2017). The 2018 Rule tracked the Proposed
    Rule with only slight modifications. The EPA reduced the
    applicable volume for cellulosic biofuel to match the agency’s
    updated projection of the amount of cellulosic biofuel that
    would be produced in 2018. Id. at 58,487. It also exercised its
    full cellulosic waiver authority to reduce the applicable
    volumes for advanced biofuel and renewable fuel by an equal
    amount. Id. And as anticipated in the Proposed Rule, the EPA
    declined to exercise its general waiver authority to reduce
    applicable volumes further due to inadequate domestic supply
    or severe economic harm. Id. The EPA adopted the following
    final applicable volumes and percentage standards:
    2018 RULE: APPLICABLE VOLUMES & PERCENTAGE
    STANDARDS
    Applicable Volume       Percentage
    (billions of gallons)    Standard
    Cellulosic Biofuel               00.288            00.159%
    Biomass-Based Diesel             02.1 (2019)       01.74%
    Advanced Biofuel                 04.29             02.37%
    Total Renewable Fuel             19.29             10.67%
    13
    Id. at 58,487, 58,491. The EPA further explained that it
    calculated the percentage standards without prospectively
    adjusting for potential small refinery exemptions and that it did
    not intend to adjust retroactively the fuel percentage standards
    to account for exemptions it subsequently granted. Id. at
    58,523. The EPA also declined to address as “beyond the scope
    of this rulemaking” comments asking it to reconsider its RIN
    policy for renewable fuel exports and its definition of obligated
    parties. Assessment and Standards Div., Office of Transp. and
    Air Quality, EPA, EPA-420-R-17-007, Renewable Fuel
    Standard Program – Standards for 2018 and Biomass-Based
    Diesel Volume for 2019: Response to Comments 223
    (December 2017) (“Response to Comments”), Joint Appendix
    (J.A.) 1446.
    C. Procedural History
    After the EPA promulgated its final rule, four groups of
    interested parties petitioned for review in this court. American
    Fuel & Petrochemical Manufacturers, a national trade
    association of U.S. refineries and petrochemical
    manufacturers, and Valero Energy Corporation, a Texas-based
    energy company that refines transportation fuels, produces
    biofuels, and sells them in the United States (together, the
    “Obligated Parties”), both filed petitions for review
    challenging the 2018 Rule as setting applicable volumes and
    percentage standards too high. On the other hand, the National
    Biodiesel Board, a biodiesel industry trade association,
    petitioned for review of the 2018 Rule on the ground that the
    Rule set applicable volumes and percentage standards too low.
    Independently, the Sierra Club and Gulf Restoration Network,
    two nonprofit environmental groups (together, the
    “Environmental Petitioners”), filed a joint petition for review
    of the 2018 Rule, claiming that the EPA violated the
    Endangered Species Act, 16 U.S.C. §§ 1531–1544, by failing
    to consult with the U.S. Fish and Wildlife Service and the
    14
    National Marine Fisheries Service regarding whether the 2018
    Rule would adversely affect threatened or endangered species.
    Several other parties intervened, including the Small Retailers
    Coalition, a national trade association of small gasoline and
    diesel retailers, which intervened on behalf of the Obligated
    Parties and now argues that the EPA violated the Regulatory
    Flexibility Act, 5 U.S.C. §§ 601–612, by failing to assess the
    2018 Rule’s potential effects on small fuel retailers.
    While the petitions before us were pending, another panel
    of this court resolved several petitions challenging the EPA’s
    final rule setting applicable volumes and percentage standards
    for 2017 and the applicable volume for biomass-based diesel
    for 2018. See Alon Ref. Krotz Springs, Inc. v. EPA, No. 16-
    1052, slip op. at 6–7 (D.C. Cir. Aug. 30, 2019) (deciding
    related case Coffeyville Res. Ref. & Mktg., LLC v. EPA, No. 17-
    1044 (D.C. Cir. filed Feb. 9, 2017)).
    II. Jurisdiction and Standards of Review
    We have jurisdiction of a timely petition for review of the
    EPA’s regulations implementing the Program. 42 U.S.C.
    § 7607(b)(1). We may reverse the EPA’s actions under the
    Program if we find them to be “arbitrary, capricious, [or] an
    abuse of discretion.” Id. § 7607(d)(9)(A). We will sustain the
    EPA’s actions, however, so long as the agency “consider[ed]
    all of the relevant factors and demonstrate[d] a reasonable
    connection between the facts on the record and the resulting
    policy choice.” Sierra Club v. Costle, 
    657 F.2d 298
    , 323 (D.C.
    Cir. 1981). In conducting our review, we “give an ‘extreme
    degree of deference’ to the EPA’s evaluation of ‘scientific data
    within its technical expertise,’ especially where, as here, we
    review the ‘EPA’s administration of the complicated
    provisions of the Clean Air Act.’” Miss. Comm’n on Envtl.
    Quality v. EPA, 
    790 F.3d 138
    , 150 (D.C. Cir. 2015) (per
    curiam) (citation omitted) (first and second quoting City of
    15
    Waukesha v. EPA, 
    320 F.3d 228
    , 247 (D.C. Cir. 2003) (per
    curiam); then quoting Catawba Cty. v. EPA, 
    571 F.3d 20
    , 41
    (D.C. Cir. 2009) (per curiam)).
    We also may reverse an EPA action under the Program if
    we determine that it is “otherwise not in accordance with law”
    or “in excess of statutory jurisdiction, authority, or limitations,
    or short of statutory right.” 42 U.S.C. § 7607(d)(9)(A), (C). The
    court reviews the EPA’s interpretation of the Clean Air Act
    under the familiar two-step framework formulated in Chevron,
    U.S.A., Inc. v. Natural Resources Defense Council, Inc., 
    467 U.S. 837
     (1984). Under Chevron, the court defers to the EPA’s
    interpretation if the statutory text is ambiguous and the EPA’s
    interpretation is reasonable. See id. at 842–45.
    We proceed to apply these standards of review to each of
    the claims raised in these consolidated cases. In Part III we
    address arguments regarding the 2018 Rule’s applicable
    volumes, including claims that the EPA erred both in
    exercising its full cellulosic waiver authority and in declining
    to exercise its general waiver authority. Next, in Part IV we
    discuss challenges to the ways in which the EPA translates
    applicable volumes into compliance obligations, specifically
    its treatment of RINs generated by renewable fuel exports, its
    definition of “obligated parties,” and its method for accounting
    for small refinery exemptions when calculating percentage
    standards. In Part V we deal with the claim that the EPA
    violated the Regulatory Flexibility Act in promulgating the
    2018 Rule. And finally, in Part VI we consider whether the
    EPA violated the Endangered Species Act by failing to engage
    in interagency consultation before issuing the 2018 Rule.
    III. Applicable Volumes
    We begin with the 2018 Rule’s applicable volumes. To
    arrive at those requirements, the EPA proceeded through a
    16
    series of interlocking steps. It began by projecting 288 million
    gallons of cellulosic biofuel production in 2018—6.71 billion
    gallons short of the Program’s 7-billion-gallon statutory
    target—and exercised its mandatory waiver accordingly. See
    2018 Rule, 82 Fed. Reg. at 58,492, 58,495–504. Next, after
    estimating “reasonably attainable” volumes of other advanced
    biofuels and considering “the costs and benefits associated
    with” achieving those volumes, the EPA decided to exercise its
    full cellulosic waiver authority to reduce advanced biofuel and
    renewable fuel applicable volumes to 4.29 and 19.29 billion
    gallons, respectively. Id. at 58,513. And finally, the EPA
    considered but rejected using its general waiver authority,
    concluding that neither “severe economic harm” nor
    “inadequate domestic supply” warranted further reductions in
    applicable volumes. Id. at 58,516–18.
    Petitioners find fault in each of these steps. First, the
    Obligated Parties argue that the EPA miscalculated its
    projection of cellulosic biofuel production. Second, the
    National Biodiesel Board contends that the EPA impermissibly
    considered financial costs when deciding to set applicable
    volumes of advanced biofuels below reasonably attainable
    levels. And third, the Obligated Parties argue that, for various
    reasons, the EPA unreasonably interpreted and refused to
    exercise its general waiver authority. None of these challenges
    has merit.
    A. Liquid Cellulosic Biofuel Projection
    In the 2018 Rule, the EPA projected that 288 million
    gallons of cellulosic biofuel would be produced in 2018: the
    sum of 274 million gallons of liquefied and compressed natural
    gas and 14 million additional gallons of liquid cellulosic
    biofuel. See 2018 Rule, 82 Fed. Reg. at 58,503 tbl.III.D.3-1.
    Only this latter liquid estimate is at issue in this case.
    17
    To arrive at its liquid cellulosic projection, the EPA
    “use[d] the same general approach as . . . in previous years.”
    Id. at 58,498. It began by sorting potential producers according
    to whether they had previously “achieved consistent
    commercial scale production” of liquid cellulosic biofuel. Id.
    Then it defined two ranges “of likely production volumes for
    2018,” one “for each group of companies.” Id. It set the low
    end of each range at last year’s “actual RIN generation” (for
    consistent producers) or zero (for new producers) and
    estimated the high end of each range (for both groups) by
    considering “a variety of factors,” including each facility’s
    “expected start-up date,” “ramp-up period,” and “capacity.” Id.
    at 58,499. And finally, the EPA selected what it calls a
    “percentile value”—in simplified terms, a number somewhere
    between the endpoints of each range—to extract “from the
    established range[s] a single projected production volume for
    each group of companies.” Id. at 58,498–99. The lower the
    percentile value, the lower the resulting projection.
    The Obligated Parties complain that by relying on this
    percentile method, which has produced overestimations in the
    past, the 2018 Rule “failed to correct chronic errors” in the
    EPA’s liquid cellulosic biofuel projections. Obligated Parties
    Br. 41. But the record reveals just the opposite. Recognizing
    that its “estimates for liquid cellulosic biofuel exceeded actual
    production of liquid cellulosic biofuel” in previous years, the
    EPA adjusted its percentile values downward in the 2018 Rule
    to “the percentile values that would have resulted in accurate
    production projections” in 2016 and 2017. 2018 Rule, 82 Fed.
    Reg. at 58,499–500. The result was the 10th percentile for new
    producers and the 12th percentile for consistent producers,
    down from the 25th and 50th percentiles, respectively, that the
    EPA had used in 2016 and 2017. See id. at 58,500–01. The
    2018 Rule, then, hardly presents “a situation in which [the]
    EPA has arbitrarily refused to reconsider a projection
    18
    methodology that has proven unsuccessful in the past.” Ams.
    for Clean Energy, 864 F.3d at 728.
    Given that the Obligated Parties offer no other grounds to
    doubt the EPA’s liquid cellulosic biofuel projection
    methodology, we conclude that the EPA’s estimate, as
    required, “took a ‘neutral aim at accuracy’ and was otherwise
    reasonable and reasonably explained.” Id. at 729 (quoting Am.
    Petroleum Inst. v. EPA, 
    706 F.3d 474
    , 476 (D.C. Cir. 2013)).
    B. Cellulosic Waiver
    Having projected that only 288 million gallons of
    cellulosic biofuel would be produced in 2018, the EPA did as
    the Program requires and “reduce[d] the applicable volume of
    cellulosic biofuel” from 7 billion gallons “to [that] projected
    volume.” 42 U.S.C. § 7545(o)(7)(D)(i); see also 2018 Rule, 82
    Fed. Reg. at 58,492 (explaining that the EPA was “setting the
    cellulosic biofuel volume requirement at a level lower than the
    statutory applicable volume”). The EPA then confronted the
    question of whether to exercise its discretionary cellulosic
    waiver. Put another way, given the absence of 6.71 billion
    gallons of cellulosic biofuel that Congress had predicted would
    help satisfy the Program’s overall 11-billion-gallon advanced
    biofuel requirement, the EPA needed to decide whether to
    “reduce the applicable volume” of the latter fuel type “by the
    same or a lesser volume” as it had reduced the former. 42
    U.S.C. § 7545(o)(7)(D)(i). The EPA analyzed this question in
    two stages.
    It began by considering what volumes of advanced
    biofuels would be “reasonably attainable in 2018,” excluding
    volumes whose attainment would result in the “diversion of
    advanced feedstocks from other uses or diversion of advanced
    biofuels from foreign sources.” 2018 Rule, 82 Fed. Reg. at
    58,505. Based on an extensive analysis of various advanced
    19
    biofuels (primarily imported sugarcane ethanol and advanced
    biodiesel and renewable diesel), the EPA projected that in
    addition to 288 million gallons of cellulosic biofuel, about 4.11
    billion gallons of non-cellulosic advanced biofuels were
    reasonably attainable. See id. at 58,513. Although less than the
    statute’s 11-billion-gallon target, the EPA’s combined
    4.4-billion projection, in a sense, exceeded statutory
    expectations: while the Program implicitly requires 4 billion
    gallons of non-cellulosic advanced biofuel (11 billion minus
    7 billion), the EPA estimated that up to 4.11 billion gallons
    could, in fact, be made available (110 million gallons above the
    4-billion-gallon floor).
    Next, the EPA had to decide whether to require those 110
    million gallons of non-cellulosic advanced biofuels “to
    partially backfill for”—i.e., compensate for—“missing
    cellulosic volumes.” Id. at 58,505. Acknowledging that it had
    mandated such backfilling in previous years, the EPA
    nonetheless explained that, “as a result of a stronger policy
    focus on the economic impacts of the RFS program,” it had
    adopted in the 2018 Rule a “new approach to balancing
    relevant considerations” that “plac[ed] a greater emphasis on
    cost considerations.” Id. at 58,504, 58,513. The EPA
    “present[ed] illustrative cost projections for . . . the two
    advanced biofuels . . . most likely to provide the marginal
    increase in volumes,” “sugarcane ethanol and soybean
    biodiesel,” and estimated per-gallon marginal cost increases
    ranging from $0.61 to $1.56 for the former (compared to
    gasoline) and $0.95 to $1.30 for the latter (compared to diesel).
    Id. at 58,513. “In light of these comparative costs,” the EPA
    concluded, “it is reasonable to forgo the marginal benefit that
    might be achieved by establishing the advanced biofuel
    standard to require an additional 110 million gallons.” Id. In
    the end, then, the EPA decided to exercise its full cellulosic
    waiver authority to reduce the advanced biofuel applicable
    20
    volume—and, by extension, the renewable fuel applicable
    volume—by 6.71 billion gallons. See id. (explaining that the
    EPA interprets “the cellulosic waiver provision . . . to provide
    equal reductions in advanced biofuel and total renewable
    fuel”).
    The National Biodiesel Board argues that by taking cost
    considerations into account, the EPA erred in exercising its full
    cellulosic waiver. We disagree.
    The Board first argues that the EPA “waive[d] the
    advanced-biofuel volume solely to save obligated parties
    money,” NBB Br. 23, and that in so doing, the 2018 Rule
    “strayed too far” from the Program’s “market forcing” purpose,
    id. at 21 (quoting Ams. for Clean Energy, 864 F.3d at 710).
    Neither proposition is correct. To begin with, the EPA hardly
    “[s]et[] the advanced-biofuel volume based entirely on costs.”
    Id. To the contrary, in calculating the reasonably attainable
    volume of advanced biofuels, the EPA analyzed many factors,
    all of which justified a 6.6-billion-gallon reduction—and only
    then did it rely on cost considerations to support an additional
    110-million-gallon decrease. And the EPA’s decision to
    consider costs fell well within its discretion. As this court
    observed in Americans for Clean Energy, because “the text of
    the cellulosic waiver provision does not direct [the] EPA to
    ‘consider particular factors,’” the “EPA enjoys broad
    discretion” “to consider ‘a range of factors’ in determining
    whether to exercise its cellulosic waiver authority.” 864 F.3d
    at 734 (quoting Monroe Energy, 750 F.3d at 915–16). The
    Board offers no persuasive reason to conclude that those
    factors must exclude costs.
    The Board next contends that the EPA failed to justify its
    decision to abandon its former practice of requiring non-
    cellulosic advanced biofuels to backfill for cellulosic deficits
    21
    up to reasonably attainable levels. Under normal
    circumstances, the 2018 Rule’s explanation would have been
    perfectly sufficient: the EPA both “display[ed] awareness that
    it [was] changing position” and offered “good reasons for the
    new policy.” FCC v. Fox Television Stations, Inc., 
    556 U.S. 502
    , 515 (2009). The Board, however, argues that this is not
    the typical case. Because the EPA’s prior practice of requiring
    all reasonably attainable levels to be produced “engendered
    serious reliance interests,” says the Board, the 2018 Rule was
    required to “provide ‘a more detailed justification’” than usual.
    NBB Br. 24 (quoting Fox Television Stations, 556 U.S. at
    515)). According to the Board, the EPA failed to satisfy this
    heightened requirement.
    Again, we disagree. First, it is far from obvious that
    renewable fuel producers possess the sort of reliance interests
    that merit special consideration. Neither the statute nor the EPA
    ever suggested that the Program’s statutory applicable volumes
    would be enforced without modification. To the contrary, as
    the EPA argues, annual volumes are “always dependent on a
    variety of considerations,” including the “EPA’s projection of
    the volume of cellulosic biofuel,” its “calculation of reasonably
    attainable volumes,” and its decision regarding whether to
    “exercise[] its other waiver authorities.” EPA Br. 28. And
    second, even where “serious reliance interests” do exist, what
    is required is not better reasons but rather more tailored
    reasons. “[I]t is not that further justification is demanded by the
    mere fact of policy change; but that a reasoned explanation is
    needed for disregarding facts and circumstances that underlay
    or were engendered by the prior policy.” Fox Television
    Stations, 556 U.S. at 515–16. The EPA did just that in its 2018
    Rule, which explains that the EPA declined to require
    backfilling because, in its view, any “marginal benefit”
    generated by the additional 110 million gallons of advanced
    biofuel would be outweighed by their steep substitution costs.
    22
    2018 Rule, 82 Fed. Reg. at 58,513. No further explanation was
    required.
    Finally, the Board suggests that the non-delegation
    doctrine prohibits any interpretation of the EPA’s cellulosic
    waiver authority broad enough to permit the EPA to consider
    costs. This argument we easily reject. To satisfy the
    constitutional requirement that “[a]ll legislative Powers . . .
    shall be vested in . . . Congress,” U.S. Const. art. I, § 1, all that
    is required “when Congress confers decisionmaking authority
    upon agencies” is that it “lay down by legislative act an
    intelligible principle to which the person or body authorized to
    [act] is directed to conform,” Whitman v. Am. Trucking Ass’ns,
    
    531 U.S. 457
    , 472 (2001) (alteration in original) (quoting J.W.
    Hampton, Jr., & Co. v. United States, 
    276 U.S. 394
    , 409
    (1928)). “Or in a related formulation, the Court has stated that
    a delegation is permissible if Congress has made clear to the
    delegee ‘the general policy’ he must pursue and the
    ‘boundaries of [his] authority.’” Gundy v. United States, 139 S.
    Ct. 2116, 2129 (2019) (alteration in original) (quoting Am.
    Power & Light Co. v. SEC, 
    329 U.S. 90
    , 105 (1946)). Congress
    provided more than enough direction in the Program’s
    cellulosic waiver provision, which constrains both when and to
    what extent the EPA may reduce statutory applicable volumes:
    only after projecting a cellulosic biofuel deficit and only by an
    amount less than or equal to that projected shortfall. See 42
    U.S.C. § 7545(o)(7)(D)(i) (stating that “[f]or any calendar year
    in which the Administrator makes . . . a reduction” in the
    applicable volume for cellulosic biofuel based on a projected
    shortfall, “the Administrator may also reduce the applicable
    volume of renewable fuel and advanced biofuels requirement
    established under paragraph (2)(B) by the same or a lesser
    volume”).
    23
    C. General Waiver
    After reducing applicable volumes of cellulosic biofuel,
    advanced biofuel, and renewable fuel by the amount of the
    cellulosic shortfall, the EPA then considered whether “severe[]
    harm [to] the economy or environment” or “an inadequate
    domestic supply” existed such that further reductions were
    justified. 42 U.S.C. § 7545(o)(7)(A). Answering those
    inquiries in the negative, the EPA declined to exercise its
    general waiver. The Obligated Parties now raise various
    challenges to that decision, and we consider each in turn.
    1.   Sequencing the Cellulosic and General Waivers
    Before addressing the particulars of the EPA’s general
    waiver determination, the Obligated Parties make an
    antecedent argument: that the EPA began its analysis at the
    wrong baseline. They ground their contention in the Program’s
    general waiver provision, which states that the EPA “may
    waive the requirements of paragraph (2)”—that is, the statutory
    applicable volumes—“by reducing the national quantity of
    renewable fuel required under paragraph (2).” 42 U.S.C.
    § 7545(o)(7)(A). According to the Obligated Parties, this
    language requires the “EPA to consider whether domestic
    supply would be inadequate to meet statutorily-specified
    volumes . . . and whether meeting those volume requirements
    would trigger severe economic harm.” Obligated Parties Br.
    22. In other words, the Obligated Parties argue that instead of
    considering whether to “further reduc[e]” applicable volumes
    after exercising its cellulosic waiver, 2018 Rule, 82 Fed. Reg.
    at 58,516, the EPA should have conducted its general waiver
    analysis as if the cellulosic waiver had never happened.
    The Obligated Parties ask too much. As an initial matter,
    the statute is at least ambiguous when it comes to sequencing
    the cellulosic and general waivers. Both provisions grant the
    24
    EPA authority to “waive” or “reduce” the applicable volumes
    established by “paragraph (2),” but neither provision indicates
    what the EPA should do if, as here, it has already decided to
    reduce those volumes. 42 U.S.C. § 7545(o)(7)(A) (the EPA
    may use the general waiver to “waive the requirements of
    paragraph (2) . . . by reducing the national quantity of
    renewable fuel required under paragraph (2)”); id.
    § 7545(o)(7)(D) (the EPA may use the cellulosic waiver to
    “reduce the applicable volume of renewable fuel and advanced
    biofuels requirement established under paragraph (2)(B)”).
    Consequently, because “Congress has not directly
    addressed the precise question at issue,” we need determine
    only “whether the agency’s answer is based on a permissible
    construction of the statute.” Chevron, 467 U.S. at 843. And
    indeed it is. Not only is it reasonable to interpret one waiver
    authority as reducing paragraph (2)’s volumes for purposes of
    the other waiver authority, but, as the EPA points out, “[t]here
    is no logical reason why [the agency] should base its waiver
    decision” on hypothetical volumes “that will not actually be
    implemented . . . because they have been reduced.” EPA Br.
    37. We have no basis, therefore, for overriding the EPA’s
    reasonable interpretation of the Program’s text with a
    requirement—cumbersome at best and absurd at worst—that
    the EPA conduct counterfactual analyses of scenarios it has
    already rejected.
    2.   Severe Economic Harm
    We turn, then, to the EPA’s examination of whether the
    2018 Rule’s applicable volumes as reduced by the cellulosic
    waiver “would severely harm the economy . . . of a State, a
    region, or the United States.” 42 U.S.C. § 7545(o)(7)(A)(i).
    The EPA concluded no, and the Obligated Parties now raise
    two objections: one interpretive, the other analytical.
    25
    The Obligated Parties first take issue with the EPA’s
    interpretation of the requisite causal link between applicable
    volumes, on the one hand, and severe harm to the economy, on
    the other. The EPA interprets the general waiver provision “as
    requiring a demonstration that implementation of the RFS
    Program itself would cause severe economic harm (as opposed
    to allowing a waiver if severe economic harm were
    demonstrated for any reason, or if the RFS merely contributed
    to severe harm).” Memorandum from David Korotney, Office
    of Transp. and Air Quality, EPA, to Docket EPA-HQ-OAR-
    2017-0091, Assessment of Waivers for Severe Economic Harm
    or BBD Prices for 2018, at 15 (Nov. 30, 2017) (“Assessment
    of Waivers”), J.A. 1051. The Obligated Parties argue that by
    “requir[ing] proof that a single market factor—RFS volume
    requirements—is the sole cause of the harm,” the EPA has
    ensured that its test will almost never be met. Obligated Parties
    Br. 25.
    The EPA has set a high bar, to be sure, but we disagree
    with the Obligated Parties’ assertion that the bar is so high as
    to be unreasonable. At bottom, this dispute comes down to an
    interpretation of the phrase “would severely harm the
    economy.” 42 U.S.C. § 7545(o)(7)(A)(i). The degree of
    causation required by that text is an open question, and
    although “agencies must operate within the bounds of
    reasonable interpretation” of even ambiguous statutory
    phrases, Util. Air Regulatory Grp. v. EPA, 
    573 U.S. 302
    , 321
    (2014) (internal quotation marks omitted), courts, by the same
    token, “may not substitute [their] own construction of a
    statutory provision for a reasonable interpretation made by the
    administrator of an agency,” Chevron, 467 U.S. at 844. The
    EPA argues that in the Program, Congress intentionally “set a
    high threshold” for an economic-harm determination by
    “requiring . . . direct causation and a high degree of
    confidence.” EPA Br. 41. And indeed, this court has previously
    26
    observed that “Congress intended the . . . Program to be . . .
    market forcing.” Ams. for Clean Energy, 864 F.3d at 705
    (internal quotation marks omitted). Accordingly, we cannot
    now fault the EPA for declining to reduce applicable volumes
    below statutory levels absent some clearly and causally
    demonstrable harm. That EPA’s interpretation is stringent
    hardly makes it unreasonable.
    As to the Obligated Parties’ analytical objection, they
    question whether the EPA provided adequate reasons for its
    determination that “further reductions” of applicable volumes
    “on the basis of severe economic harm” were not “warranted.”
    2018 Rule, 82 Fed. Reg. at 58,518. To reach this conclusion,
    the EPA first acknowledged various comments regarding the
    2018 Rule’s financial “impacts on specific companies” but
    explained that “statements generally claiming financial
    difficulties, potential for closure, and the high cost of RIN
    purchases alone” failed to support a determination “that severe
    economic harm to a State, a region, or the United States [was]
    occurring.” Assessment of Waivers 5, J.A. 1041. Then,
    observing “that the 2018 volumes generated through the
    maximum reduction permitted under the cellulosic waiver
    authority are nearly the same as the volume requirements for
    2017,” the EPA explained that it would, in effect, use 2017 as
    a test case by considering both “[w]hether severe economic
    harm ha[d] occurred . . . in 2017, and . . . whether the economic
    conditions in 2018 might be expected to be substantially
    different than those in 2017.” 2018 Rule, 82 Fed. Reg. at
    58,518. Based on its assessment of “market overcompliance,
    retail fuel prices, fuel supply, crop prices, and refinery
    closures” in recent years along with “crop-based feedstock
    futures prices” and “projected gasoline demand” for 2018, the
    EPA concluded that the 2017 requirements had not “caus[ed]
    severe economic harm to a State, a region, or the United States”
    and that “market conditions in 2018” were unlikely “to cause
    27
    compliance with the applicable standards to have a higher
    potential for severe economic harm than in 2017.” Assessment
    of Waivers 14–15, J.A. 1050–51.
    With this analysis, the EPA sufficiently “examine[d] the
    relevant data and articulate[d] a satisfactory explanation for its
    action.” Motor Vehicle Mfrs. Ass’n v. State Farm Mut. Auto.
    Ins. Co., 
    463 U.S. 29
    , 43 (1983). Although the EPA declined
    to conduct a state-by-state or region-by-region analysis, “an
    agency need not—indeed cannot—base its every action upon
    empirical data; depending upon the nature of the problem, an
    agency may be ‘entitled to conduct . . . a general analysis based
    on informed conjecture.’” Chamber of Commerce v. SEC, 
    412 F.3d 133
    , 142 (D.C. Cir. 2005) (alteration in original) (quoting
    Melcher v. FCC, 
    134 F.3d 1143
    , 1158 (D.C. Cir. 1998)). Here,
    based on “the limited time available” to conduct its analysis,
    “the lack of clear evidence of severe economic harm provided
    in comments,” and its ability to “grant waivers . . . during the
    compliance year should sufficient evidence become available,”
    the EPA reasonably elected to begin with “a high-level
    investigation of a number of broad economic indicators” to see
    if they “provide[d] evidence of possible severe economic harm
    that would justify further EPA investigation.” Assessment of
    Waivers 7, J.A. 1043. The EPA then reasonably concluded that
    they did not. See id.
    The Obligated Parties nonetheless argue that the EPA
    erred by “ignor[ing] actual data regarding state and regional
    economic jeopardy.” Obligated Parties Br. 29 (emphasis
    omitted). For this claim, they cite two facts: first, that “the
    largest refiner on the East Coast” declared bankruptcy after the
    2018 Rule went into effect, portending, in the Obligated
    Parties’ view, additional “refinery shutdowns,” Obligated
    Parties Reply Br. 12, 15; and second, that RIN costs are
    28
    “escalating” and, in the Obligated Parties’ estimation, not
    easily passed on to consumers, Obligated Parties Br. 29.
    But the EPA did, in fact, address this purported evidence
    of economic harm. As to threatened refinery closures, the EPA
    noted that the commenting refineries lacked “any concrete
    evidence that their financial difficulties are caused primarily or
    even significantly by the RFS program.” Assessment of
    Waivers 5, J.A. 1041. And as to compliance costs, the EPA
    explained that the refineries had failed to show “why they
    cannot recoup the cost of RINs through higher prices of their
    products.” 2018 Rule, 82 Fed. Reg. at 58,517. Although the
    Obligated Parties may disagree with the EPA’s analysis, they
    have fallen far short of showing that the EPA either “entirely
    failed to consider an important aspect of the problem” or
    “offered an explanation for its decision that runs counter to the
    evidence before the agency, or is so implausible that it could
    not be ascribed to a difference in view or the product of agency
    expertise.” Motor Vehicle Mfrs. Ass’n, 463 U.S. at 43. Mindful
    that we may not “substitute [our] judgment for that of the
    agency,” id., we conclude that the EPA did not act arbitrarily
    and capriciously in declining to exercise the economic-harm
    prong of its general waiver authority.
    3.   Inadequate Domestic Supply
    The Obligated Parties also take issue with the EPA’s
    failure to exercise the general waiver “based on a
    determination . . . that there is an inadequate domestic supply.”
    42 U.S.C. § 7545(o)(7)(A)(ii). The dispute turns on the
    meaning of the phrase “domestic supply”: the Obligated Parties
    argue that it includes only fuel produced domestically, while
    the EPA, at least until the 2018 Rule, had interpreted the term
    to include any fuel available domestically, including imports.
    See Supplemental Information, 82 Fed. Reg. at 46,177 (noting
    that the EPA had previously considered “biofuel imports as
    29
    part of the domestic supply”). But recently the EPA’s
    enthusiasm for its imports-inclusive interpretation has turned
    tepid. In its October 2017 Supplemental Information, the EPA
    sought comments on whether to adopt a production-only
    interpretation under which the agency would continue to
    “consider the availability of imports . . . in determining
    whether to exercise its discretion to use the waiver authority,”
    but only after “ma[king] the threshold finding that there was an
    inadequate domestic supply” of fuel produced in the United
    States and, even then, only “as one factor among others.” Id. at
    46,178.
    After dipping its toe into the water, however, the EPA
    waded no further. Instead, the final 2018 Rule analyzed each
    category of fuel under both a production-only and an imports-
    inclusive interpretation of “domestic supply.” Concluding that
    “a waiver is not warranted” “[u]nder either approach,” the EPA
    adopted neither definition—in effect, deciding not to decide.
    2018 Rule, 82 Fed. Reg. at 58,516. Its analysis proceeded as
    follows.
    The EPA began by discussing the supply of “non-
    advanced” renewable fuel—primarily corn ethanol—that could
    fill the 15-billion-gallon gap between the Program’s
    requirement of 11 billion gallons of advanced biofuel (4.29
    after the cellulosic waiver) and 26 billion gallons of total
    renewable fuel (19.29 after the cellulosic waiver). 2018 Rule,
    82 Fed. Reg. at 58,516–17. Explaining that “the total domestic
    production capacity of corn ethanol in the [United States] is
    about 16 billion gallons” and that “total production . . . in 2016
    exceeded 15 billion gallons,” the EPA concluded the market
    could supply sufficient “conventional renewable fuel” with or
    without imports. Id. at 58,517.
    30
    Turning next to cellulosic biofuel, the EPA explained that
    286 million gallons of its 288-million-gallon projection was
    “expected to come from domestic sources” and that pre-2018
    “carryover cellulosic biofuel RINs” were available to facilitate
    “additional compliance flexibility.” Id. “Given the importance
    that Congress placed on the growth of cellulosic biofuel
    volumes” and the 2018 Rule’s “projection that compliance with
    a 288 million gallon requirement is feasible,” the EPA decided
    it “would not exercise its discretion to lower the 288 million
    gallon projected cellulosic biofuel volume by 2 million gallons
    even if [it] were to interpret the term ‘domestic supply’ to
    exclude imported volumes.” Id.
    That left only non-cellulosic advanced biofuel. Having
    already determined that 4.11 billion gallons (4.4 billion minus
    288 million) was “reasonably attainable,” the EPA dismissed
    any concern that there would be an “inadequate domestic
    supply” of advanced biofuel under an imports-inclusive
    interpretation. See id. at 58,516. But, as the EPA
    acknowledged, a production-only interpretation presented a
    closer question. The EPA observed that “a significant portion
    of the advanced biofuel available in previous years has been
    from imported biofuels,” and it noted comments “suggest[ing]
    that, without imported volumes, the domestic industry could
    not ramp up production quickly enough to compensate for the
    exclusion of imports from our analysis.” Id. at 58,517. The
    2018 Rule, however, also highlighted comments to the
    contrary. “Some commenters pointed to total domestic
    production capacity and feedstock availability,” the EPA
    explained, “to argue that domestic producers are capable of
    compensating for volumes that would not be provided through
    imports.” Id. Faced with this “uncertainty,” the EPA concluded
    that based on “the distinct possibility that the domestic industry
    could compensate for exclusion of imports” and “the
    availability of imported volumes and carryover RINs,” it
    31
    “would not choose to exercise its authority to grant a waiver on
    the basis of inadequate domestic supply for 2018 even if it
    interpreted the term ‘domestic supply’ to exclude imports.” Id.
    This belt-and-suspenders approach, though perhaps not
    maximally efficient, relieved the EPA of any obligation to
    choose conclusively one interpretation of “domestic supply”
    over the other. To be sure, “an agency rule would be arbitrary
    and capricious if the agency . . . entirely failed to consider an
    important aspect of the problem.” Motor Vehicle Mfrs. Ass’n,
    463 U.S. at 43. But by explaining that it would decline to
    exercise its general waiver under either a production-only or
    imports-inclusive interpretation, the EPA made that choice
    itself unimportant. And because the EPA sufficiently
    “acknowledge[d] factual uncertainties and identif[ied] the
    considerations it found persuasive” with respect to each of its
    alternative analyses, we find no fault in the substance of the
    2018 Rule’s “predictive judgments” about the adequacy of
    domestic supply. Rural Cellular Ass’n v. FCC, 
    588 F.3d 1095
    ,
    1105 (D.C. Cir. 2009).
    Nor are we persuaded by the Obligated Parties’ contention
    that the imports-inclusive option would have “impermissibly
    twisted the [Program’s] statutory language.” Obligated Parties
    Br. 32. Implied by the Obligated Parties’ interpretive argument
    is a bold assertion: that the EPA could have acted arbitrarily
    and capriciously by merely contemplating, without adopting,
    an erroneous interpretation of the statutory text. But even
    assuming that premise, we conclude that the EPA permissibly
    considered what would have been a reasonable interpretation
    of an ambiguous statutory phrase. Indeed, this court has
    previously offered “import capacity” as an example of the sorts
    of “supply-side factors” that the “‘inadequate domestic supply’
    provision authorizes [the] EPA to consider” when “examining
    whether the supply of renewable fuel is adequate.” Ams. for
    32
    Clean Energy, 864 F.3d at 710. We can hardly blame the EPA
    for permitting itself to consider whether this court spoke
    accurately. See Supplemental Notice, at 46,178 & n.19
    (explaining the EPA’s view that “the court’s statements,” while
    “dicta,” “may indicate the scope of permissible, but not
    required, interpretations”).
    In conclusion, even though the EPA declined to interpret
    “inadequate domestic supply,” its refusal to exercise the
    domestic-supply prong of its general waiver authority was
    nonetheless “the product of reasoned decisionmaking.” Motor
    Vehicle Mfrs. Ass’n, 463 U.S. at 52. We reject the Obligated
    Parties’ contrary arguments.
    4.   Ethanol Projection
    Before moving away from the EPA’s general waiver
    analysis, we must address one final point: the Obligated
    Parties’ argument that the EPA failed to produce a well-
    reasoned estimate of attainable ethanol production, thus
    making “its final volume determinations . . . arbitrary and
    capricious.” Obligated Parties Br. 41; see also Oral Arg. Tr. 8–
    9 (conceding that any errors in the EPA’s ethanol projection
    could affect only the general waiver, as the EPA exercised in
    full its cellulosic waiver).
    The Obligated Parties misapprehend the EPA’s ultimate
    task. The Program imposes no free-floating obligation on the
    EPA to estimate “the reasonably attainable supply of ethanol.”
    Obligated Parties Br. 37. Nor does it permit, much less require,
    the EPA to craft applicable volumes of any fuel from scratch.
    Instead, the statute establishes applicable volumes—in 2018,
    26 billion gallons of renewable fuel, no more than 15 gallons
    of it “non-advanced,” see 42 U.S.C. § 7545(o)(2)(B)(i)—and
    permits the EPA to “waive [those] requirements” only if the
    Administrator determines that the statutory mandates “would
    33
    severely harm the economy or environment” or “that there is
    an inadequate domestic supply,” id. § 7545(o)(7)(A). As we
    have explained before, “[n]othing in the text of . . . the
    [Program] plainly requires [the] EPA to support its decision”
    against exercising the general waiver “with specific numerical
    projections.” Am. Petroleum Inst., 706 F.3d at 481. “Certainly
    [the] EPA must provide a reasoned explanation for its actions,
    but rationality does not always imply a high degree of
    quantitative specificity.” Id.
    The 2018 Rule’s explanation is more than satisfactory.
    Citing the Renewable Fuels Association’s “2017 Ethanol
    Industry Outlook,” the EPA explained that the U.S. market had
    the capacity to produce “about 16 billion gallons” of corn
    ethanol and had in fact produced some 15.25 billion gallons in
    2016. 2018 Rule, 82 Fed. Reg. at 58,517 & n.135. The EPA
    further supplied a lengthy memorandum analyzing “various
    conditions and constraints in the marketplace . . . for the two
    most prominent biofuels, ethanol and biodiesel.”
    Memorandum from David Korotney, Office of Transp. and Air
    Quality, EPA, to Docket EPA-HQ-OAR-2017-0091, Market
    Impacts of Biofuels 1 (Nov. 27, 2017), J.A. 1180. “[B]ased
    both on levels achieved in the past and” predictions regarding
    “how the market might respond to the applicable standards,”
    the EPA offered “a range of possible outcomes with varying
    levels of [ethanol blends], imported sugarcane ethanol,
    advanced biodiesel and renewable diesel, and conventional
    biodiesel and renewable diesel,” all of which would satisfy the
    (post-cellulosic waiver) “total renewable fuel and advanced
    biofuel volume requirements of 19.29 and 4.29 billion gallons,
    respectively.” Id. at 11, J.A. 1190. This analysis provided more
    than enough support for the EPA’s determination that neither
    inadequate supply nor economic harm warranted use of the
    general waiver.
    
    34 Dall. 2019
     Biomass-Based Diesel Applicable Volume
    In addition to establishing renewable fuel obligations for
    cellulosic biofuel, advanced biofuel, and renewable fuel for
    calendar year 2018, the 2018 Rule also finalized the biomass-
    based diesel applicable volume for 2019—a year for which the
    Program lists no statutory applicable volume. See 2018 Rule,
    82 Fed. Reg. at 58,518–22. Following the same “approach [it
    used] in setting the final [biomass-based diesel] volume
    requirement for 2018,” the EPA decided to maintain the
    biomass-based diesel requirement at 2.1 billion gallons, the
    same as in 2018. Id. at 58,522. Central to the EPA’s analysis
    was its assessment that because “RIN generation data has
    consistently demonstrated that the advanced biofuel volume
    requirement . . . [is] capable of incentivizing the supply of
    [biomass-based diesel] above and beyond the [biomass-based
    diesel] volume requirement,” “the 2019 advanced volume
    requirement”—not the biomass-based diesel requirement—
    would drive “the level of [biomass-based diesel] production
    and imports that occur in 2019.” Id. at 58,521–22. In other
    words, the EPA determined that while its biomass-based diesel
    requirement might set a floor on production, it would hardly
    impose a ceiling. The EPA therefore concluded that a
    2.1-billion-gallon requirement would “strike[] the appropriate
    balance between” “maintaining support for the [biomass-based
    diesel] industry” and “providing a market environment where
    the development of other advanced biofuels is incentivized.”
    Id.
    The National Biodiesel Board argues that by considering
    “the future, then-not-set 2019 advanced-biofuel volume,” the
    EPA impermissibly “bas[ed] the 2019 [biomass-based diesel]
    volume on a factor” absent from the statute’s enumerated list.
    NBB Br. 28; see also 42 U.S.C. § 7545(o)(2)(B)(ii), (v)
    (requiring that applicable volumes should be established
    “based on a review of the implementation of the program
    35
    during” previous years and on “an analysis of” six other
    factors). We need not, however, linger long on this argument,
    as it has been resolved by this court’s decision in Alon Refining.
    See slip op. at 65. Therefore, we deny the Board’s petition.
    IV. Other Facets of the Program
    The Obligated Parties and the National Biodiesel Board
    also challenge three of the EPA’s regulations implementing the
    Program. The Obligated Parties contend that the EPA, as part
    of the 2018 rulemaking process, should have reconsidered both
    its RIN policy for renewable fuel exports and its definition of
    “obligated party.” The National Biodiesel Board, in turn,
    argues that the EPA should have accounted for retroactively
    granted small refinery exemptions in calculating percentage
    standards. As explained below, the Obligated Parties’
    challenges are untimely and the National Biodiesel Board’s
    challenge was not preserved.
    A. The EPA’s RIN Policy for Renewable Fuel Exports
    Under the EPA’s current regulations, obligated parties
    cannot use RINs generated from renewable fuel that is later
    exported from the United States to satisfy their renewable fuel
    obligations under the Program. See 40 C.F.R. § 80.1430.
    Instead, exporters must use those RINs to offset their own
    Exporter Renewable Volume Obligation. Id. During the 2018
    rulemaking process, several parties submitted comments
    asking the EPA to remove the Exporter Renewable Volume
    Obligation. Rather than address the substance of these
    comments, the EPA stated: “These comments are all beyond
    the scope of this rulemaking as EPA did not propose any
    changes to the overall structure of the RFS program or
    otherwise seek comment on these issues.” Response to
    Comments 223, J.A. 1446. The Obligated Parties now argue
    that the EPA acted arbitrarily and capriciously in refusing to
    36
    engage with comments regarding renewable fuel exports for
    two reasons: first, because those comments were within the
    scope of the EPA’s Proposed Rule and Supplemental
    Information and second, because the EPA’s obligation to make
    a reasoned decision required it to reevaluate its RIN policy for
    renewable fuel exports as part of the 2018 rulemaking.
    The EPA correctly dismissed comments regarding its RIN
    policy for renewable fuel exports as outside the scope of the
    2018 Rule. In the Proposed Rule, the EPA delineated those
    issues for which it was—and was not—soliciting comment:
    “EPA is not soliciting comment on any aspect of the current
    RFS regulatory program other than those specifically related to
    RIN trading . . . and the proposed annual standards for 2018
    and biomass-based diesel applicable volume for 2019.”
    Proposed Rule, 82 Fed. Reg. at 34,211. The Obligated Parties
    do not dispute that the EPA’s RIN policy for renewable fuel
    exports falls outside these enumerated subjects for comment.
    Instead, the Obligated Parties point to five other statements in
    the Proposed Rule and Supplemental Information that they
    argue brought the EPA’s RIN policy for renewable fuel exports
    within the scope of the rulemaking: (1) the EPA’s
    acknowledgment that “[r]eal-world challenges” have rendered
    unattainable congressional goals for the production of most
    categories of renewable fuel, id. at 34,207; (2) the EPA’s
    observation that the variable volume of annual renewable fuel
    imports and exports “affect[s] the price of renewable fuel,”
    Supplemental Information, 82 Fed. Reg. at 46,176; (3) the
    EPA’s concern that increasing reliance on renewable fuel
    imports may jeopardize energy independence and security,
    Proposed Rule, 82 Fed. Reg. at 34,212; (4) the EPA’s
    affirmance of the importance of maintaining the liquidity of the
    RIN market by maintaining an “adequate RIN bank,” id. at
    34,213; and (5) the EPA’s requests for comments “on all
    aspects of this proposal” and “any aspect of this rulemaking,”
    37
    id. at 34,242. It is not clear that these statements, on their face,
    open the EPA’s RIN policy for renewable fuel exports for
    comment. Whatever the potential meaning of these statements
    in isolation, the Proposed Rule’s express limitation of the
    subjects on which the EPA was soliciting comment
    unambiguously communicates its decision not to solicit
    comment on its RIN policy for renewable fuel exports.
    Accordingly, we find no error in the EPA’s treatment of
    comments requesting that it reconsider its RIN policy for
    renewable fuel exports as outside the scope of the 2018
    rulemaking.
    Because comments regarding the EPA’s RIN policy for
    exported renewable fuel were outside the scope of the 2018
    rulemaking, we lack jurisdiction to consider the Obligated
    Parties’ instant challenge to the policy. Generally, “[a] petition
    for review of action of [the EPA] in promulgating . . . any
    control or prohibition under [the Program] . . . shall be filed
    within sixty days from the date notice of such promulgation,
    approval, or action appears in the Federal Register.” 42 U.S.C.
    § 7607(b)(1). Section 7607(b)(1)’s sixty-day filing deadline is
    jurisdictional. See Sierra Club v. EPA, 
    895 F.3d 1
    , 16 (D.C.
    Cir. 2018). Here, the EPA promulgated its current version of
    its regulation governing renewable fuel exports in 2014. See
    RFS Renewable Identification Number (RIN) Quality
    Assurance Program, 79 Fed. Reg. 42,078, 42,115 (July 18,
    2014). The Obligated Parties filed their first petition in this case
    more than three years later—well outside the statutory sixty-
    day filing period. Although a party may file an otherwise
    untimely petition challenging a regulation if the promulgating
    agency subsequently expressly or constructively “reopens” the
    issue, Nat. Res. Def. Council v. EPA, 
    571 F.3d 1245
    , 1265
    (D.C. Cir. 2009) (per curiam), our conclusion that comments
    regarding the EPA’s RIN policy for renewable fuel exports
    were outside the scope of the 2018 rulemaking forecloses the
    38
    claim that the EPA reopened the issue. We therefore lack
    jurisdiction to consider the Obligated Parties’ challenge to the
    EPA’s current rule preventing refineries and importers of
    renewable fuel from using RINs from renewable fuel later
    exported to discharge their renewable fuel obligations.
    In an apparent attempt avoid the sixty-day filing period,
    the Obligated Parties argue that the EPA acted arbitrarily and
    capriciously by failing even to reconsider its RIN policy for
    renewable fuel exports. According to the Obligated Parties,
    altering that policy is a significant alternative that the EPA
    should have considered when settling on the 2018 Rule’s
    applicable volumes and percentage standards. Although an
    agency must consider comments “relevant to the agency’s
    decision and which, if adopted, would require a change in an
    agency’s proposed rule,” it “does not have to ‘make progress
    on every front before it can make progress on any front.’” Nat’l
    Mining Ass’n v. MSHA, 
    116 F.3d 520
    , 549 (D.C. Cir. 1997)
    (per curiam) (first quoting Home Box Office, Inc. v. FCC, 
    567 F.2d 9
    , 35 n.58 (D.C. Cir. 1977) (per curiam); then quoting
    Pers. Watercraft Indus. Ass’n v. Dep’t of Commerce, 
    48 F.3d 540
    , 544 (D.C. Cir. 1995)). Here, the Obligated Parties have
    not explained how a change in the EPA’s RIN policy for
    renewable fuel exports would have required the agency also to
    change its proposed applicable volumes and percentage
    standards. Therefore, the EPA could, without acting arbitrarily
    and capriciously, take the discrete action of establishing annual
    applicable volumes and percentage standards under the
    Program while declining to reconsider its RIN policy for
    renewable fuel exports.
    B. The EPA’s Definition of “Obligated Party”
    The Clean Air Act gives the EPA some leeway in
    determining which parties in the transportation fuel industry
    must comply with the Program’s percentage standards. The Act
    39
    provides that renewable fuel obligations “shall . . . be
    applicable to refineries, blenders, and importers, as
    appropriate.” 42 U.S.C. § 7545(o)(3)(B)(ii)(I) (emphasis
    added). Exercising its discretion under the statute, the EPA has
    long declined to obligate blenders. See 40 C.F.R.
    § 80.1406(a)(1). Refineries and importers have repeatedly
    objected to the EPA’s decision not to require blenders to help
    shoulder the Program’s regulatory burden, including in
    comments to the 2018 Rule. The EPA, however, dismissed
    those comments as outside the scope of the rulemaking.
    There is no doubt that the EPA is correct that comments
    regarding the agency’s “obligated party” definition fell outside
    the scope of the 2018 rulemaking. In the Proposed Rule, the
    EPA expressly declared that it was not reopening the issue:
    “EPA is not re-opening for public comment in this rulemaking
    the current definition of ‘obligated party.’” Proposed Rule, 82
    Fed. Reg. at 34,211. Because the EPA did not reopen the issue,
    the Obligated Parties’ challenge to the EPA’s rule is untimely
    by over seven years, see Regulation of Fuels and Fuel
    Additives: Modifications to Renewable Fuel Standard
    Program, 75 Fed. Reg. 26,026, 26,037 (May 10, 2010), and we
    therefore lack jurisdiction to review the limited reach of the
    EPA’s regulations obligating only refineries and importers of
    transportation fuel, see Sierra Club, 895 F.3d at 16.
    The Obligated Parties, however, again attempt to side-step
    the sixty-day filing requirement by arguing that the EPA acted
    contrary to the Clean Air Act as well as arbitrarily and
    capriciously by declining to reconsider its definition of
    “obligated party” in promulgating the annual applicable
    volumes and percentage standards in the 2018 Rule. We need
    not consider this argument because this court’s recent decision
    in Alon Refining resolves the issue. See slip op. at 53.
    40
    C. The EPA’s Method of Accounting for Small Refinery
    Exemptions
    After establishing the applicable volumes for a particular
    year, the EPA translates those volumes into percentage
    standards by dividing the applicable renewable fuel volumes
    by the total volume of transportation fuel expected to be sold
    in the United States in that year. See 42 U.S.C.
    § 7545(o)(3)(B)(ii)(II); 40 C.F.R. § 80.1405(c). Thus, if every
    obligated party incorporates the required percentage of
    renewable fuel into the gasoline and diesel it sells, the
    transportation fuel industry as a whole will achieve the
    established applicable volumes. As noted above, however, the
    Program requires the EPA to exempt from compliance small
    refineries experiencing disproportionate economic hardship in
    complying with their renewable fuel obligations. 42 U.S.C.
    § 7545(o)(9). By permitting some obligated parties to
    incorporate less renewable fuel into the gasoline and diesel
    they sell, small refinery exemptions can impede attainment of
    overall applicable volumes. To avoid such a shortfall, the EPA
    raises the percentage standard for non-exempt parties in a given
    year by subtracting from its calculations the transportation fuel
    contributions of small refineries that were granted exemptions
    before the EPA established the percentage standard for that
    year. See 40 C.F.R. § 80.1405(c).
    This solution, however, is only partial: the EPA does not
    currently account for small refinery exemptions granted after it
    promulgates percentage standards for that year—so-called
    retroactive exemptions. To address any deficiency in its current
    approach, the EPA solicited comment on how it should account
    for small refinery exemptions in its calculation of the 2018
    percentage standards. Proposed Rule, 82 Fed. Reg. at 34,241–
    42. The EPA ultimately maintained its previous policy of
    adjusting fuel percentages for exemptions granted before the
    percentage standards are promulgated but not for exemptions
    41
    granted after. 2018 Rule, 82 Fed. Reg. at 58,523.
    The National Biodiesel Board challenges the EPA’s
    decision to retain its policy of disregarding retroactive small
    refinery exemptions as failing to “ensure[]” that obligated
    parties’ renewable fuel contributions achieve total applicable
    volumes pursuant to 42 U.S.C. section 7545(o)(3)(B)(i). The
    Board argues that the EPA should have adopted a policy
    whereby it (1) adjusts the final percentage standards ex ante to
    account “for small-refinery exemptions [the EPA] is
    reasonably likely to grant after promulgating the standards”
    and (2) corrects any deficiencies resulting from exemptions
    actually granted ex post by “increasing later years’ standards.”
    NBB Br. 18.
    The Board, however, did not make its current challenge
    during the 2018 rulemaking. Under the Clean Air Act, “[o]nly
    an objection to a rule or procedure which was raised with
    reasonable specificity during the period for public comment . . .
    may be raised during judicial review.” 42 U.S.C.
    § 7607(d)(7)(B). “The court enforces this provision ‘strictly’ to
    ensure that [the] EPA has an opportunity to respond to every
    challenge” and so that “the court enjoys the benefit of the
    agency’s expertise and possibly avoids addressing some of the
    challenges unnecessarily.” Motor & Equip. Mfrs. Ass’n v.
    Nichols, 
    142 F.3d 449
    , 462 (D.C. Cir. 1998) (citation omitted)
    (quoting Nat. Res. Def. Council v. Thomas, 
    805 F.2d 410
    , 427
    (D.C. Cir. 1986)). “[A]lthough we allow commenters ‘some
    leeway in developing their argument before this court,’ the
    comment must have provided ‘adequate notification of the
    general substance of the complaint.’” Nat. Res. Def. Council,
    571 F.3d at 1259 (quoting S. Coast Air Quality Mgmt. Dist. v.
    EPA, 
    472 F.3d 882
    , 891 (D.C. Cir. 2006)).
    The Board identifies two sets of comments it claims
    42
    preserved its current challenge, but both failed to give
    “adequate notification of the general substance” of the Board’s
    current proposal. Id. In one set of comments, the American
    Petroleum Institute suggested that the EPA cease granting
    retroactive exemptions altogether. In a similar vein, the other
    set of comments by BP Products of North America asked the
    EPA to cease granting retroactive exemptions or, in the
    alternative, to adjust applicable volumes after the standards are
    promulgated to account for any retroactive exemptions. The
    Board’s offered solutions are significantly different from these
    proposals—the Board does not ask the EPA to cease granting
    retroactive exemptions or to adjust the applicable volumes for
    the same year in which the retroactive exemptions are later
    granted. Rather, the Board suggests that the EPA should
    project the number of retroactive exemptions it expects to grant
    when calculating percentage standards or should adjust the
    following year’s applicable volumes to account for any
    shortfall resulting from the grant of retroactive exemptions.
    The comments submitted to the EPA therefore did not raise the
    Board’s current proposals with “reasonable specificity,” 42
    U.S.C. § 7607(d)(7)(B), leaving the EPA no opportunity to
    respond to the Board’s challenge and burdening this court with
    potentially unnecessary challenges, see Motor & Equip. Mfrs.
    Ass’n, 142 F.3d at 462.
    At oral argument, the Board acknowledged that neither of
    its proposals “specifically was in front of the Agency” but
    claimed that they are merely “alternative proposals” and that
    the Board “d[oes] not have a specific proposal” that the EPA
    must adopt. Oral Arg. Tr. 64, 66. Instead, the Board argued that
    “the Court should tell EPA that its duty to ensure requires it to
    do something, and then send [the 2018 Rule] back to the
    Agency for the Agency to decide what that something is.” Oral
    Arg. Tr. 65–66. Regardless whether we can vacate the 2018
    Rule due to the EPA’s failure to do an unspecified
    43
    “something,” the Board did not make this argument in its briefs
    and has therefore forfeited the issue. See Elec. Privacy Info.
    Ctr. v. Presidential Advisory Comm’n on Election Integrity,
    
    878 F.3d 371
    , 379 n.6 (D.C. Cir. 2017).
    As a fallback, the Board argues that the EPA’s policy
    regarding small refinery exemptions is a “vital assumption”
    underlying the 2018 Rule and therefore no comment was
    necessary to preserve its current challenge. Under the “key
    assumption” doctrine, an agency has the “‘duty to examine key
    assumptions as part of its affirmative burden of promulgating
    and explaining a non-arbitrary, non-capricious rule’ and
    therefore . . . ‘must justify that assumption even if no one
    objects to it during the comment period.’” Okla. Dep’t of Envtl.
    Quality v. EPA, 
    740 F.3d 185
    , 192 (D.C. Cir. 2014) (alteration
    in original) (quoting Appalachian Power Co. v. EPA, 
    135 F.3d 791
    , 818 (D.C. Cir. 1998) (per curiam)). But the key
    assumption doctrine applies to aspects of a rule that are
    foundational to its existence, such as assumptions regarding the
    agency’s statutory authority, see Nat. Res. Def. Council v. EPA,
    
    755 F.3d 1010
    , 1023 (D.C. Cir. 2014) (“[T]hat EPA had
    statutory authority . . . to exempt some hazardous-waste-
    derived fuels from regulation was a ‘key assumption’
    underlying EPA’s exercise of its discretion . . . .” (internal
    quotation mark omitted)), or those pertaining to the agency’s
    analytical methodology, see Small Refiner Lead Phase-Down
    Task Force v. EPA, 
    705 F.2d 506
    , 535 (D.C. Cir. 1983)
    (“[A]ggregate analysis is a vital assumption underlying the
    [EPA’s] model. Thus, EPA must justify that assumption even
    if no one objects to it during the comment period . . . .”). How
    the EPA accounts for exemptions granted to a subset of a subset
    of a subset of obligated parties (small fuel refineries
    experiencing disproportionate economic hardship) is hardly an
    assumption undergirding the entire 2018 Rule. In any event, the
    EPA examined its policy regarding retroactive exemptions,
    44
    solicited comment on the issue, and reasonably rejected the
    proposals it received. See Proposed Rule, 82 Fed. Reg. at
    34,241–42; 2018 Rule, 82 Fed. Reg. at 58,523. Thus, to the
    extent the EPA’s method of accounting for retroactive
    exemptions in its percentage standard calculations is a “key
    assumption,” the EPA has carried its “affirmative burden . . .
    [to] justify that assumption.” Okla. Dep’t of Envtl. Quality, 740
    F.3d at 192 (quoting Appalachian Power Co., 135 F.3d at 818).
    V. Regulatory Flexibility Act
    The Regulatory Flexibility Act requires an agency to
    perform a regulatory flexibility analysis when conducting a
    rulemaking. 5 U.S.C. §§ 603(a), 604(a). As part of that
    analysis, the agency must assess any potential effects its
    proposed rule may have on small entities and must consider
    alternatives that would “minimize any significant economic
    impact” on small entities to which the rule will apply. Id.
    § 603(b)(3), (c); accord id. § 604(a)(4), (6). Intervenor Small
    Retailers Coalition argues that the court should vacate the 2018
    Rule because the EPA failed to perform a regulatory flexibility
    analysis assessing the potential impact of the 2018 Rule on
    small fuel retailers. Although the Regulatory Flexibility Act
    argument was articulated in a joint brief filed by the Obligated
    Parties and the Coalition, the parties agree that only the
    Coalition raises the argument.
    We decline to exercise our discretion to hear this argument
    brought only by an intervenor and not by any of the petitioners.
    By failing to file a timely petition for review, the Coalition
    forfeited any guarantee to judicial review of its claim. See E.
    Ky. Power Coop., Inc. v. FERC, 
    489 F.3d 1299
    , 1305 (D.C.
    Cir. 2007). Generally, “[i]ntervenors may only argue issues
    that have been raised by the principal parties.” Nat’l Ass’n of
    Regulatory Util. Comm’rs v. ICC, 
    41 F.3d 721
    , 729 (D.C. Cir.
    1994). “[O]nly in ‘extraordinary cases’ will we depart from our
    45
    general rule.” Id. at 730 (quoting Lamprecht v. FCC, 
    958 F.2d 382
    , 389 (D.C. Cir. 1992)). For example, we will consider an
    intervenor-only argument that raises “‘an essential’ predicate”
    to the issues raised by the petitioners—that is, if the argument
    has been “fully litigated in the agency proceedings and [is]
    potentially determinative of the outcome of judicial review.”
    Synovus Fin. Corp. v. Bd. of Governors, 
    952 F.2d 426
    , 433–34
    (D.C. Cir. 1991). But we are reticent to consider an intervenor-
    only argument if the intervenor “had every incentive to petition
    for review of the administrative decision and its failure to do
    so was without excuse.” Id. at 434.
    The Coalition’s challenge does not constitute an
    extraordinary case. Instead of demonstrating that its argument
    presents an “essential predicate” to the issues the petitioners
    raise or is otherwise of unusual importance, the Coalition
    emphasizes (1) that the EPA did not object to its motion to
    intervene, (2) that the Regulatory Flexibility Act argument
    raises a pure question of law, and (3) that the Coalition has a
    history of challenging the EPA’s definition of obligated parties.
    The Coalition points to no case, and we are aware of none, in
    which we have relied on similar facts to justify considering an
    intervenor-only argument.
    On the other hand, we believe this case is indistinguishable
    from Time Warner Entertainment Co. v. FCC, 
    56 F.3d 151
    (D.C. Cir. 1995). In Time Warner, we declined to consider an
    argument under the Regulatory Flexibility Act made only by
    the intervenor, the Small Cable Business Association. Id. at
    202–03. In doing so, we observed that the Association had
    “participated in the agency proceedings and had the
    opportunity to file an independent petition for review of the
    Commission’s alleged rejection of the Association’s . . .
    [Regulatory Flexibility Act] claim[].” Id. at 202. Just so here.
    The Coalition submitted comments on the Proposed Rule
    46
    asking the EPA to conduct a regulatory flexibility analysis, and
    the EPA’s alleged failure to conduct the requested analysis
    gave the Coalition every incentive to file its own petition for
    review of the final 2018 Rule. The Coalition has offered no
    excuse for its failure to do so. We therefore decline to exercise
    our discretion to consider the Coalition’s arguments under the
    Regulatory Flexibility Act.
    VI. Endangered Species Act
    Finally, the Environmental Petitioners argue that the EPA
    failed to comply with its obligations under the Endangered
    Species Act (ESA), 16 U.S.C. §§ 1531–1544. The ESA
    requires agencies to determine whether certain proposed
    actions may affect endangered and threatened species, known
    as “listed species,” and their critical habitat. Generally, unless
    an agency determines that an action will not affect these species
    and habitat, the agency must consult with the U.S. Fish and
    Wildlife Service and the National Marine Fisheries Service (the
    “Services”). The Environmental Petitioners contend that the
    EPA disregarded these obligations by failing to determine
    whether the 2018 Rule may affect listed species and critical
    habitat. This challenge clears several threshold hurdles: we
    have jurisdiction, the Environmental Petitioners have standing,
    and the Environmental Petitioners preserved their challenge.
    On the merits, we agree with the Environmental Petitioners that
    the EPA did not comply with the ESA.
    A. Jurisdiction
    We have jurisdiction over challenges to “final action[s]”
    taken by the EPA under the Clean Air Act. 42 U.S.C.
    § 7607(b)(1); see supra Part II. The term “final action” in the
    Clean Air Act is synonymous with “final agency action” in the
    Administrative Procedure Act. See Indep. Equip. Dealers
    Ass’n v. EPA, 
    372 F.3d 420
    , 428 (D.C. Cir. 2004). This means
    47
    that the Clean Air Act empowers us to hear challenges to
    “discrete agency actions,” but we may not consider more
    sweeping “programmatic” attacks. See Norton v. S. Utah
    Wilderness All., 
    542 U.S. 55
    , 62–65 (2004); Lujan v. Nat’l
    Wildlife Fed’n, 
    497 U.S. 871
    , 891 (1990). The EPA argues that
    the Environmental Petitioners’ claim is outside our jurisdiction
    because it is a broad attack seeking “wholesale improvement
    of” the RFS Program. EPA Br. 85 (quoting Lujan, 497 U.S. at
    891).
    We do not understand the claim so broadly. Although the
    Environmental Petitioners criticize the RFS Program and
    complain that the EPA has never consulted on the Program
    during the past decade, their actual challenge is to the 2018
    Rule. According to their petition, they “seek review” of “the
    EPA’s failure to comply with the requirements” of the ESA “in
    promulgating the Final Rule,” and they charge the EPA “in this
    instance” with failing to consult with the Services “to ensure
    that the Final Rule” would not harm listed species. Envtl. Pet’rs
    Pet. ¶ 2, No. 18-1040 (D.C. Cir. Feb. 9, 2018). Because the
    promulgation of the 2018 Rule is a discrete agency action, this
    challenge is squarely within our jurisdiction under the Clean
    Air Act.
    B. Standing
    The EPA also argues that we may not consider the
    challenge because the Environmental Petitioners lack standing.
    “The Constitution limits our ‘judicial Power’ to ‘Cases’ and
    ‘Controversies,’ and there is no justiciable case or controversy
    unless the plaintiff has standing.” West v. Lynch, 
    845 F.3d 1228
    , 1230 (D.C. Cir. 2017) (quoting U.S. Const. art. III, § 2).
    An association like each of the Environmental Petitioners has
    standing “only if (1) at least one of its members would have
    standing to sue in his own right; (2) the interest it seeks to
    protect is germane to its purpose; and (3) neither the claim
    48
    asserted nor the relief requested requires the member to
    participate in the lawsuit.” Ctr. for Biological Diversity v. EPA,
    
    861 F.3d 174
    , 182 (D.C. Cir. 2017) (quoting Am. Trucking
    Ass’ns v. Fed. Motor Carrier Safety Admin., 
    724 F.3d 243
    , 247
    (D.C. Cir. 2013)).
    The parties do not dispute that one of the Environmental
    Petitioners—the Sierra Club—satisfies the latter two elements
    of associational standing. Nor could they. As an organization
    dedicated to protecting and enjoying the environment,
    Addendum to Envtl. Pet’rs Br. (“Add.”) 275, 289, the Sierra
    Club “has an obvious interest in challenging the EPA’s failure
    to engage in consultation,” a process that ensures that agency
    action “does not go forward without full consideration of its
    effects on listed species,” Ctr. for Biological Diversity, 861
    F.3d at 182 (internal quotation marks omitted). Also, the claim
    asserted (that the EPA violated its obligations under the ESA)
    and the relief requested (an order requiring the EPA to comply
    with its obligations) do not require any member of the Sierra
    Club to participate in this suit. See id.
    The only disputed element of associational standing is the
    first: whether at least one of the Sierra Club’s members would
    have standing to sue in his or her own right. Generally, a
    plaintiff must meet three requirements to have standing. The
    plaintiff must have suffered (1) a concrete and particularized
    injury that (2) was caused by the challenged conduct and (3) is
    likely to be redressed by a favorable judicial decision. See
    Hollingsworth v. Perry, 
    570 U.S. 693
    , 704 (2013) (citing
    Lujan v. Defs. of Wildlife, 
    504 U.S. 555
    , 560–61 (1992)); Ctr.
    for Biological Diversity, 861 F.3d at 181–82.
    This case involves a twist on the usual standing inquiry
    because the claim—that the EPA failed to meet its obligations
    under the ESA—describes an “archetypal procedural injury.”
    49
    Ctr. for Biological Diversity, 861 F.3d at 182 (quoting
    WildEarth Guardians v. Jewell, 
    738 F.3d 298
    , 305 (D.C. Cir.
    2013)). In cases involving a procedural injury, our “primary
    focus” is “whether a plaintiff who has suffered personal and
    particularized injury has sued a defendant who has caused that
    injury,” and our analyses of the injury and of causation tend to
    involve similar concepts. Fla. Audubon Soc’y v. Bentsen, 
    94 F.3d 658
    , 664 (D.C. Cir. 1996) (en banc) (citing Lujan, 504
    U.S. at 572 n.7); see Ctr. for Biological Diversity, 861 F.3d at
    182–83. As to injury, the Sierra Club must show that the failure
    to comply with the ESA “affects its members’ concrete . . .
    interests,” Ctr. for Biological Diversity, 861 F.3d at 183; in
    other words, that the failure “demonstrably increased some
    specific risk of environmental harm[s]” that “imperil” the
    members’ “particularized interests” in a species or habitat with
    which the members share a “geographic nexus,” Fla. Audubon
    Soc’y, 94 F.3d at 666–68; see Ctr. for Biological Diversity, 861
    F.3d at 183–84. As to causation, the Sierra Club must show two
    links: “one connecting the omitted procedural step to some
    substantive government decision that may have been wrongly
    decided because of the lack of that procedural requirement”
    and “one connecting that substantive decision to the plaintiff’s
    particularized injury.” Ctr. for Biological Diversity, 861 F.3d
    at 184 (alterations and internal quotation marks omitted). The
    Sierra Club need not show that harm to a member “has in fact
    resulted from the EPA’s procedural failures,” but the Club must
    “demonstrate that there is a ‘substantial probability’ that local
    conditions will be adversely affected” by the final decision
    infected with procedural failures and “thus harm a [Club]
    member.” Id. (quoting Am. Petroleum Inst. v. EPA, 
    216 F.3d 50
    , 63 (D.C. Cir. 2000) (per curiam)).
    The Sierra Club has established injury and causation
    through at least two of its members, C. Elaine Giessel and
    William Fontenot. We begin by describing their interests, then
    50
    we explain how the 2018 Rule affects those interests.
    Giessel has aesthetic and recreational interests in
    observing the whooping crane. Watching birds, including
    whooping cranes, is one of her family’s favorite activities. Add.
    286. For many years, she has supported the conservation of
    critical habitat for the whooping crane. In 1997, she helped
    create an organization that supports a Texas wildlife refuge;
    she now visits the refuge annually to see the whooping cranes.
    Id. at 283–84. She also belongs to an organization that supports
    the Quivira National Wildlife Reserve in Kansas, and several
    times per year she visits that refuge and another in Kansas, the
    Cheyenne Bottoms State Waterfowl Management Area. She
    intends to continue visiting these areas “for the foreseeable
    future,” and her “enjoyment would be greatly diminished by
    the loss of the Whooping cranes.” Id. at 285. These interests
    are “undeniably . . . cognizable interest[s] for purpose of
    standing.” Ctr. for Biological Diversity, 861 F.3d at 183
    (quoting Lujan, 504 U.S. at 562–63).
    Fontenot has similarly cognizable educational and
    conservation interests in observing and studying the sturgeon
    that live in the Gulf of Mexico and the Mississippi River Basin.
    He has visited their habitat in the Gulf and intends to do so
    again in the future. Add. 298. As the Conservation Chairman
    for a Sierra Club Chapter, he has “been active in efforts to
    protect the Gulf Sturgeon and its habitat,” including
    commenting on the 2011 draft plan for the Bogue Chitto
    Refuge at the mouth of the Mississippi River. Id. at 299. He has
    studied sturgeon, such as those in the Pearl River in the
    Mississippi River Basin, and he wishes to continue studying
    the species because it helps him understand, protect, and
    educate others about the Gulf and the Mississippi River. Id. at
    296–99.
    51
    The interests of Giessel and Fontenot are harmed by the
    EPA’s alleged failure to comply with its ESA obligations in
    promulgating the 2018 Rule. The EPA’s own 2018 Triennial
    Report concluded that the Program’s annual standards likely
    cause the conversion of uncultivated land into agricultural land
    for growing crops that can be used to make biofuels. Since the
    Program was enacted, acreage planted with corn and soybeans
    has increased, and the evidence suggests that some of this
    increase “is a consequence of increased biofuel production
    mandates.” Id. at 123–25. In the same vein, a declaration by Dr.
    Tyler Lark, an associate researcher at the University of
    Wisconsin-Madison’s Center for Sustainability and the Global
    Environment, explains that many studies have found that the
    RFS Program has heightened demand for ethanol, thus
    increasing the production of corn, soybeans, and similar crops
    and incentivizing the conversion of uncultivated land to
    agricultural land for growing these crops. See id. at 3–7 (Lark
    Decl. ¶¶ 4–8). Land conversion is particularly marked in areas
    surrounding ethanol refineries. See id. at 7–8 (Lark Decl. ¶¶ 9–
    10).
    According to the EPA’s Triennial Report and Dr. Lark,
    this increase in crop production and land conversion harms the
    habitats of numerous animals and fish, see id. at 212–20; id. at
    9–18 (Lark Decl. ¶¶ 12–23), including—critically—the
    particular habitats of the whooping cranes and Gulf sturgeon in
    which Giessel and Fontenot have interests. Dr. Lark explains
    that the Program’s annual standards may negatively affect the
    whooping crane “through the loss and fragmentation of
    habitat.” Id. at 13 (Lark Decl. ¶ 17). Most relevant to Giessel,
    “[t]here is substantial conversion of land to biofuel feedstock
    crops near the species’ designated critical habitat in Kansas.”
    Id. In support, Dr. Lark cites a map showing that potential land
    conversion occurred from 2008 to 2016 near and within the
    very areas that Giessel visits to observe whooping cranes: the
    52
    Quivira National Wildlife Reserve and Cheyenne Bottoms
    State Waterfowl Management Area. Id. The Triennial Report
    echoes this refrain, stating that the whooping crane’s critical
    habitat in Kansas is “at risk of impairment” due to recent land
    conversion, crop production, and ethanol refinery locations. Id.
    at 64.
    Gulf sturgeon are also at risk. The increase in crop
    production and land conversion caused by the Program’s
    annual standards “negatively impact[s] water quality.” Id. at
    125–26. In particular, the standards contribute to oxygen
    deficiencies (known as hypoxia) in the northern Gulf of
    Mexico. Id. Indeed, “[t]he link between the Renewable Fuel
    Standard, increased cropping intensification, and hypoxia in
    the Gulf of Mexico” is “well established.” Id. at 20 (Lark Decl.
    ¶ 27) (citing studies). This may harm sturgeon, which are
    “vulnerable” to hypoxia and have migration and feeding ranges
    and critical habitat in the Gulf and at the mouth of the
    Mississippi River. Id. at 21 (Lark Decl. ¶¶ 28–29); accord. id.
    at 65; see also Endangered and Threatened Wildlife and Plants;
    Designation of Critical Habitat for the Gulf Sturgeon, 68 Fed.
    Reg. 13,370, 13,390, 13,408 (Mar. 19, 2003) (defining the Gulf
    sturgeon’s critical habitat to include the Pearl River and the
    Bogue Chitto River in the Mississippi River Basin). These are
    precisely the waterways where Fontenot observes and studies
    sturgeon. See Add. 296–99.
    In these ways, the 2018 Rule created a demonstratable risk
    to the particularized interests of two Sierra Club members in
    the whooping crane in Kansas and the sturgeon in the Gulf and
    the Mississippi River Basin. That risk is an injury to those
    members. We reached the same conclusion in Center for
    Biological Diversity v. EPA, 
    861 F.3d 174
     (D.C. Cir. 2017).
    There, an environmental association likewise charged the EPA
    with failing to meet its ESA obligations before approving a
    53
    pesticide that was toxic to insects. Id. at 180. We held that two
    members of the association suffered cognizable injuries
    because the EPA’s alleged failure created a “demonstrable
    risk” to (1) a beetle that one member sought to observe in a
    particular habitat several times a year, and (2) a butterfly that
    lived in a county frequently visited by another member, who
    intended to return to the county “to look for” the butterfly. Id.
    at 183–84. Here, the 2018 Rule poses a similar risk to species
    that share a “geographical nexus” with the Sierra Club
    members. Id. (quoting Fla. Audubon Soc’y, 94 F.3d at 667).
    The members have suffered cognizable injuries.
    As to causation, the EPA’s alleged failure to comply with
    its ESA obligations is plainly connected to the setting of
    standards in the 2018 Rule, and those standards might have
    come out differently if the EPA had complied. See id. at 184.
    Also, there is a “substantial probability” that the EPA’s
    ultimate decision adversely affected local conditions in Kansas,
    the Gulf, and the Mississippi River Basin, harming cranes and
    sturgeon to the detriment of Giessel and Fontenot. Id. (internal
    quotation marks omitted). This establishes causation. Again,
    Center for Biological Diversity is instructive. In that case, we
    held that causation existed due to the substantial probability
    that approving the pesticide threatened the members’ interests,
    particularly given the pesticide’s toxicity to insects and the
    “geographical overlap” between the beetle habitat and the areas
    of likely pesticide use. Id. at 184–85. The EPA action here
    similarly affects the local conditions that matter to Giessel and
    Fontenot. The Sierra Club has established that at least one of
    its members has suffered an injury caused by the EPA.
    The EPA dismisses all this as “generalized concerns with
    RFS statutory provisions and past RFS action,” which “do not
    provide ‘evidence’ that the 2018 Rule causes the same alleged
    injuries.” EPA Br. 91. We disagree. The EPA’s argument relies
    54
    on the wrong standard. The Environmental Petitioners need not
    show that the 2018 Rule “in fact” causes the same injuries; they
    must show only a “substantial probability” of injury. Ctr. for
    Biological Diversity, 861 F.3d at 183–84 (internal quotation
    marks omitted). The EPA’s Triennial Report and the Lark
    declaration provide evidence of just that. They describe the
    effects of the annual standards promulgated over the past
    decade, and the 2018 Rule is simply the next iteration of those
    standards. Thus, the report and declaration certainly serve as
    evidence of the likely effects of the 2018 Rule.
    The EPA also argues that this case is more like Florida
    Audubon Society than Center for Biological Diversity. Not so.
    In Florida Audubon Society, an environmental association
    challenged a new federal tax credit that allegedly harmed
    wildlife habitats by incentivizing ethanol production. 94 F.3d
    at 662. We held that no member had standing because there
    was only a “general risk” of harm throughout the United States,
    without a “geographic nexus” connecting a member to areas
    harmed by the tax credit. Id. at 667–68. Also, the chain of
    causation showing that the tax credit would harm habitats was
    too “protracted” and “speculative,” for the chain depended on
    “predictive assumptions” about uncertain incentives and
    “presume[d] certain ‘independent action[s] of some third
    party.’” Id. at 670 (quoting Simon v. Eastern Ky. Welfare
    Rights Org., 
    426 U.S. 26
    , 42 (1976)). By contrast, here the
    members of the Sierra Club share a geographic nexus with
    areas likely affected by the 2018 Rule, and the chain of
    causation does not depend on predictive assumptions about a
    novel agency action. We have a decade’s worth of information,
    including the EPA’s own Triennial Report, on the effects of the
    Program’s annual standards. And unlike in Florida Audubon
    Society, those standards do not simply establish uncertain tax
    incentives that might lead third parties to take actions that harm
    habitats, but rather directly regulate biofuel producers who are
    55
    “before this court.” Id. at 670. It requires “no great speculative
    leap” to conclude that the EPA caused an injury to the members
    of the Sierra Club. Ctr. for Biological Diversity, 861 F.3d at
    183 n.7.
    This injury is also redressable. In this context, the
    requirement of redressability is “relaxed.” Id. at 185 (quoting
    WildEarth Guardians, 738 F.3d at 306). The Sierra Club need
    not show that the EPA “would alter” the 2018 Rule if ordered
    to comply with its ESA obligations, but rather that “the EPA
    could reach a different conclusion.” Id. (quoting Nat’l Parks
    Conservation Ass’n v. Manson, 
    414 F.3d 1
    , 5 (D.C. Cir. 2005)).
    The Sierra Club has made this showing. There “remains at least
    the possibility” that the EPA could set different standards by,
    for example, invoking the general waiver for severe
    environmental harm. Id.; see 42 U.S.C. § 7545(o)(7)(A)(i).
    Having established that at least one of its members would
    have standing to sue, the Sierra Club has associational
    standing. We do not address whether the other Environmental
    Petitioner, the Gulf Restoration Network, has standing. When
    multiple associations bring suit, only one must have standing.
    See Ctr. for Biological Diversity, 861 F.3d at 182.
    C. Preservation
    The EPA next argues that we may not consider the
    Environmental Petitioners’ challenge because it was not
    preserved. As we explained in Part IV.C, the Clean Air Act
    directs that “[o]nly an objection to a rule . . . raised with
    reasonable specificity during the period for public comment . . .
    may be raised during judicial review.” 42 U.S.C.
    § 7607(d)(7)(B). An objection is reasonably specific if it
    provides “adequate notification of the general substance of the
    complaint.” Nat. Res. Def. Council, 571 F.3d at 1259 (quoting
    S. Coast Air Quality Mgmt. Dist., 472 F.3d at 891).
    56
    The Environmental Petitioners preserved their claim in a
    letter sent to the EPA on July 14, 2017. At that time, the
    upcoming fuel standards were those that were to be
    promulgated in the 2018 Rule. The letter criticizes the Program
    generally, but it also objects that the EPA did not consult on
    the Program’s annual standards. The letter states on its first
    page that the EPA has violated the ESA “[b]y failing to initiate
    and complete consultation with the [Services] in . . . setting
    annual volumetric standards for renewable fuels” and in
    “failing to exercise[] its waiver authority.” J.A. 1450. The letter
    elaborates that the “annual standards” have harmed various
    species, and in setting the standards, the EPA “ha[s] not
    complied” with its obligations under the ESA. J.A. 1458–69.
    The letter specifically identifies these annual standards through
    2017.
    The EPA argues that the letter is not sufficiently specific
    because it does not refer to the forthcoming 2018 standards or
    urge the EPA to consult on the 2018 Rule in particular. Given
    these omissions, we too might doubt that the letter preserved
    an objection to the 2018 Rule were it not for some additional
    facts: the EPA placed the letter in the administrative record for
    the 2018 Rule, and the letter appears on the EPA’s rulemaking
    docket as a comment on the 2018 Rule. See EPA Docket, EPA-
    HQ-OAR-2017-0091-5030, J.A. 1450; Oral Arg. Tr. 106. In
    our view, these facts lend substantial support to the argument
    that the letter can be reasonably read to target the 2018 Rule
    and provided “adequate notification of the general substance”
    of the challenge. Nat. Res. Def. Council, 571 F.3d at 1259
    (quoting S. Coast Air Quality Mgmt. Dist., 472 F.3d at 891).
    After all, the EPA’s own actions reflect as much.
    We note that the letter is dated July 14, 2017, making it
    possible that the EPA received the letter before and not “during
    the period for public comment” that opened on July 21. 42
    57
    U.S.C. § 7607(d)(7)(B) (emphasis added); see Proposed Rule,
    82 Fed. Reg. at 34,206. But the EPA does not make that
    argument. See EPA Br. 86 (arguing that the letter was
    insufficiently specific, not that it was submitted outside the
    comment period); cf. id. at 86–87 & n.39 (arguing that other
    documents failed to preserve the challenge because they were
    submitted after the comment period). Perhaps the EPA does not
    urge this point because the letter was sent before the comment
    period but received during the period, which its placement on
    the rulemaking docket for the 2018 Rule suggests. In any event,
    we need not resolve this issue. Section 7607(d)(7)(B) does not
    impose jurisdictional requirements, so we are not obligated to
    address issues that go undisputed by the parties. See EPA v.
    EME Homer City Generation, LP, 
    572 U.S. 489
    , 511–12
    (2014); CTS Corp. v. EPA, 
    759 F.3d 52
    , 60 n.2 (D.C. Cir.
    2014). On this record and the arguments before us, we hold that
    the Environmental Petitioners preserved their ESA claim.
    D. Merits
    Because this claim survives the EPA’s threshold
    objections, we turn to its merits. The Environmental Petitioners
    argue that the EPA did not comply with its obligations under
    the ESA in promulgating the 2018 Rule. The ESA requires
    each federal agency to “insure that any action authorized,
    funded, or carried out by such agency . . . is not likely to
    jeopardize the continued existence of any [listed] species or
    result in the destruction or adverse modification” of designated
    critical habitat by adhering to the consultation process. 16
    U.S.C. § 1536(a)(2); see Ctr. for Biological Diversity, 861 F.3d
    at 177–78; see also 50 C.F.R. § 402.02 (defining “listed
    species” as those “determined to be endangered or threatened”
    under 5 U.S.C. § 1533). As the first step in this process, the
    agency must make an “effects determination,” i.e., the agency
    must assess whether a proposed action “may affect” listed
    species or critical habitat. 50 C.F.R. § 402.14(a). If so, the
    58
    agency must engage in formal consultation with the Services.
    Id. But if the agency makes a “no effect” determination by
    finding that its proposed action “will not affect any listed
    species or critical habitat,” then “it is not required to consult”
    with the Services. Ctr. for Biological Diversity v. U.S. Dep’t of
    Interior, 
    563 F.3d 466
    , 475 (D.C. Cir. 2009) (emphasis added);
    see also 50 C.F.R. §§ 402.13(a), 402.14(b) (the consultation
    process terminates and no further action is necessary if the
    agency determines, with the written concurrence of the relevant
    Service, that the action “is not likely to adversely affect” any
    listed species or critical habitat).
    The EPA claims that it was not obligated to make an
    effects determination or consult with the Services on the 2018
    Rule because the Clean Air Act required the agency to establish
    certain fuel volumes, which eliminated any discretion it might
    otherwise have had to act differently based on information
    gathered through consulting with the Services. It is true that the
    EPA’s duty to consult with the Services “covers only
    discretionary agency actions and does not attach to actions . . .
    that an agency is required by statute to undertake.” Nat’l Ass’n
    of Home Builders v. Defs. of Wildlife, 
    551 U.S. 644
    , 669
    (2007). But the EPA’s argument fails because the agency had
    discretion to reduce fuel volumes in at least two ways. First, the
    EPA could have invoked its authority to issue a general waiver
    allowing it to reduce statutory volumes that “would severely
    harm the . . . environment of a State, a region, or the United
    States.” 42 U.S.C. § 7545(o)(7)(A)(i). Second, the EPA
    retained discretion to establish volumes for biomass-based
    diesel. When setting such volumes, the EPA must consider six
    factors, one of which allows the EPA to modify volumes based
    on environmental considerations, such as concerns about
    wetland conversion, wildlife habitat, and water quality. See id.
    § 7545(o)(2)(B)(ii)(I).
    59
    The EPA next argues that it made a “no effect”
    determination, thus eliminating any obligation to consult with
    the Services. According to the EPA, it “expressly determined
    that its actions do not affect” listed species, EPA Br. 99, by
    stating in response to comments that “any harm to threatened
    or endangered species or their critical habitat that may be
    associated with crop cultivation in 2018 could not be attributed
    with reasonable certainty to EPA’s action” in promulgating the
    2018 Rule, id. (quoting J.A. 1249); see also J.A. 1253 (EPA
    similarly stating that “whatever impacts or threats to listed and
    endangered species or their critical habitats that may be caused
    by corn or soy cultivation in 2018 cannot with reasonable
    certainty be attributed to” the 2018 Rule).
    These statements are not a “no effect” determination. The
    inability to “attribute[]” environmental harms “with reasonable
    certainty” to the 2018 Rule, EPA Br. 99 (quoting J.A. 1249), is
    not the same as a finding that the 2018 Rule “will not affect”
    or “is not likely to adversely affect” listed species or critical
    habitat. Moreover, the EPA made this purported “no effect”
    determination in response to comments urging the EPA to
    reduce volumes through a finding of “severe environmental
    harm” under 42 U.S.C. § 7545(o)(7)(A)(i). See J.A. 1248–49.
    Concluding that the 2018 Rule may not cause harms that meet
    that high threshold does not necessarily mean the 2018 Rule
    will have no effect on listed species or critical habitat. Finally,
    the EPA’s brief omits an important part of the purported “no
    effect” determination, which reads: “[W]e believe that even
    with additional research and analysis, . . . any harm to
    threatened or endangered species or their critical habitat that
    may be associated with crop cultivation in 2018 could not be
    attributed with reasonable certainty to EPA’s action . . . .” J.A.
    1249 (emphasis added). In other words, the EPA concluded
    that it is impossible to know whether the 2018 Rule will affect
    listed species or critical habitat. That is not the same as
    60
    determining that the 2018 Rule “will not” affect them.
    By failing to make an effects determination, the EPA did
    not comply with its obligations under the ESA. See 16 U.S.C.
    § 1536(a)(2); 50 C.F.R. §§ 402.13(a), 402.14(a). We therefore
    grant the Environmental Petitioners’ petition for review and
    remand the 2018 Rule to the EPA to make an appropriate
    effects determination. See Ctr. for Biological Diversity, 861
    F.3d at 188–89; Am. Bird Conservancy, Inc. v. FCC, 
    516 F.3d 1027
    , 1034–35 (D.C. Cir. 2008).
    The Environmental Petitioners ask us to go a step further
    and make the effects determination ourselves. In their view, the
    evidence conclusively establishes that the 2018 Rule “may
    affect” listed species or critical habitat. Envtl. Pet’rs Br. 28–29.
    This would trigger formal consultation, 50 C.F.R. § 402.14(a),
    and so the Environmental Petitioners ask us to order the EPA
    to consult with the Services, Envtl. Pet’rs Br. 30. On this
    record, we decline to make this effects determination on the
    EPA’s behalf, preferring instead to allow the EPA to develop
    the record and decide the issue in the first instance on remand.
    See Ctr. for Biological Diversity, 861 F.3d at 189 n.13.
    Finally, the Environmental Petitioners do not ask us to
    vacate the 2018 Rule. Envtl. Pet’rs Br. 31 (seeking remand
    “without vacatur”). Accordingly, and consistent with our
    practice in similar cases, our remand is without vacatur. See,
    e.g., Ctr. for Biological Diversity, 861 F.3d at 188–89; North
    Carolina v. EPA, 
    550 F.3d 1176
    , 1178 (D.C. Cir. 2008) (per
    curiam).
    VII. Conclusion
    For the foregoing reasons, we deny the petitions for review
    filed by American Fuel & Petrochemical Manufacturers,
    Valero Energy Corporation, and the National Biodiesel Board.
    61
    We grant the Environmental Petitioners’ petition for review
    and remand the 2018 Rule without vacatur for further
    proceedings consistent with this opinion.
    So ordered.
    

Document Info

Docket Number: 17-1258

Filed Date: 9/6/2019

Precedential Status: Precedential

Modified Date: 9/6/2019

Authorities (34)

motor-equipment-manufacturers-association-v-mary-d-nichols-assistant , 142 F.3d 449 ( 1998 )

American Bird Conservancy, Inc. v. FCC , 516 F.3d 1027 ( 2008 )

Center for Biological Diversity v. US Dept. of Interior , 563 F.3d 466 ( 2009 )

natural-resources-defense-council-v-lee-m-thomas-administrator , 805 F.2d 410 ( 1986 )

National Parks Conservation Ass'n v. Manson , 414 F.3d 1 ( 2005 )

Jerome Thomas Lamprecht v. Federal Communications ... , 958 F.2d 382 ( 1992 )

national-mining-association-v-mine-safety-and-health-administration-and , 116 F.3d 520 ( 1997 )

E KY Power Coop v. FERC , 489 F.3d 1299 ( 2007 )

American Petroleum Institute,petitioners v. United States ... , 216 F.3d 50 ( 2000 )

City of Waukesha v. Environmental Protection Agency , 320 F.3d 228 ( 2003 )

personal-watercraft-industry-association-a-mason-killebrew-jr-derek , 48 F.3d 540 ( 1995 )

small-refiner-lead-phase-down-task-force-v-united-states-environmental , 705 F.2d 506 ( 1983 )

national-association-of-regulatory-utility-commissioners-illinois-commerce , 41 F.3d 721 ( 1994 )

Appalachian Power Company v. Environmental Protection ... , 135 F.3d 791 ( 1998 )

Time Warner Entertainment Co., L.P. v. Federal ... , 56 F.3d 151 ( 1995 )

Catawba County v. Environmental Protection Agency , 571 F.3d 20 ( 2009 )

Melcher v. Federal Communications Commission , 134 F.3d 1143 ( 1998 )

Sierra Club v. Douglas M. Costle, Administrator of the ... , 657 F.2d 298 ( 1981 )

Indep Equip Dlrs v. EPA , 372 F.3d 420 ( 2004 )

Chamber Cmerc USA v. SEC , 412 F.3d 133 ( 2005 )

View All Authorities »