[Federal Register Volume 90, Number 127 (Monday, July 7, 2025)]
[Rules and Regulations]
[Pages 29751-29760]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-11153]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 80

[EPA-HQ-OAR-2024-0411; FRL-12015-02-OAR]
RIN 2060-AW46


Renewable Fuel Standard (RFS) Program: Partial Waiver of the 2024 
Cellulosic Biofuel Volume Requirement

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: EPA is partially waiving the 2024 cellulosic biofuel volume 
requirement and revising the associated percentage standard under the 
Renewable Fuel Standard (RFS) program due to a shortfall in cellulosic 
biofuel production. This action also makes a minor revision to the 
biogas provisions of the RFS program.

DATES: This rule is effective on September 5, 2025. The incorporation 
by reference of certain other material listed in the rule was approved 
by the Director of the Federal Register as of September 11, 2023.

ADDRESSES: EPA has established a docket for this action under Docket ID 
No. EPA-HQ-OAR-2024-0411. All documents in the docket are listed on the 
https://www.regulations.gov website. Although listed in the index, some 
information is not publicly available, e.g., confidential business 
information (CBI) or other information whose disclosure is restricted 
by statute. Certain other material is not available on the internet and 
will be publicly available only in hard copy form. Publicly available 
docket materials are available electronically through https://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: For questions regarding this action, 
contact Dallas Burkholder, Assessment and Standards Division, Office of 
Transportation and Air Quality, Environmental Protection Agency, 2000 
Traverwood Drive, Ann Arbor, MI 48105; telephone number: (734) 214-
4776; email address: [email protected].

SUPPLEMENTARY INFORMATION:

Does this action apply to me?

    Entities potentially affected by this action are those involved 
with the production, distribution, and sale of transportation fuels 
(e.g., gasoline and diesel fuel) and renewable fuels (e.g., ethanol, 
biodiesel, renewable diesel, and biogas). Potentially affected 
categories include:

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                   Category                     NAICS \a\ code      Examples of potentially affected entities
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Industry......................................          211130  Natural gas liquids extraction and
                                                                 fractionation.
Industry......................................          221210  Natural gas production and distribution.
Industry......................................          324110  Petroleum refineries (including importers).
Industry......................................          325120  Biogases, industrial (i.e., compressed,
                                                                 liquified, solid), manufacturing.
Industry......................................          325193  Ethyl alcohol manufacturing.
Industry......................................          325199  Other basic organic chemical manufacturing.
Industry......................................          424690  Chemical and allied products merchant
                                                                 wholesalers.
Industry......................................          424710  Petroleum bulk stations and terminals.
Industry......................................          424720  Petroleum and petroleum products wholesalers.
Industry......................................          457210  Fuel dealers.
Industry......................................          562212  Landfills.
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\a\ North American Industry Classification System (NAICS).

    This table is not intended to be exhaustive, but rather provides a 
guide for readers regarding entities potentially affected by this 
action. This table lists the types of entities that EPA is now aware 
could potentially be affected by this action. Other types of entities 
not listed in the table could also be affected. To determine whether 
your entity would be affected by this action, you should carefully 
examine the applicability criteria in 40 CFR part 80. If you have any 
questions regarding the applicability of this action to a particular 
entity, consult the person listed in the FOR FURTHER INFORMATION 
CONTACT section.

[[Page 29752]]

Preamble Acronyms and Abbreviations

    Throughout this document the use of ``we,'' ``us,'' or ``our'' is 
intended to refer to EPA. We use multiple acronyms and terms in this 
preamble. While this list may not be exhaustive, to ease the reading of 
this preamble and for reference purposes, EPA defines the following 
terms and acronyms here:

BBD biomass-based diesel
CAA Clean Air Act
CG conventional gasoline
CNG compressed natural gas
CWC cellulosic waiver credit
LNG liquified natural gas
RBOB reformulated gasoline before oxygenate blending
RFG reformulated gasoline
RFS Renewable Fuel Standard
RIN Renewable Identification Number
RNG renewable natural gas
RVO Renewable Volume Obligation

Outline of This Preamble

I. Executive Summary
II. Statutory Background
    A. The RFS Program and the Set Authority
    B. Cellulosic Waiver Authority
III. Partial Waiver of the 2024 Cellulosic Biofuel Volume 
Requirement
    A. Implementation of the Cellulosic Waiver Authority
    B. Economic Impact Analysis
    C. Calculation of 2024 Cellulosic Biofuel Percentage Standard
IV. Change to Calculation of Cellulosic Waiver Credit Price
V. Measurement of Renewable CNG/LNG Using Documentation
VI. Severability
VII. Judicial Review
VIII. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review
    B. Executive Order 14192: Unleashing Prosperity Through 
Deregulation
    C. Paperwork Reduction Act (PRA)
    D. Regulatory Flexibility Act (RFA)
    E. Unfunded Mandates Reform Act (UMRA)
    F. Executive Order 13132: Federalism
    G. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Governments
    H. Executive Order 13045: Protection of Children From 
Environmental Health Risks and Safety Risks
    I. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use
    J. National Technology Transfer and Advancement Act (NTTAA) and 
1 CFR Part 51
    K. Congressional Review Act (CRA)
IX. Statutory Authority

I. Executive Summary

    On July 12, 2023, EPA promulgated a rule establishing the RFS 
volume requirements and percentage standards for 2023-2025 (the ``Set 1 
Rule'').\1\ As part of that rulemaking, EPA projected that 1.09 billion 
cellulosic Renewable Identification Numbers (RINs) would be generated 
in 2024 and used that volume to establish the 2024 cellulosic biofuel 
percentage standard of 0.63 percent.\2\ On December 12, 2024, EPA 
proposed a rule to, among other things, partially waive the 2024 
cellulosic biofuel volume requirement under the RFS program and revise 
the associated 2024 cellulosic biofuel percentage standard due to a 
projected shortfall in cellulosic biofuel production in 2024.\3\ In 
this action, EPA is finalizing the proposed partial waiver of the 2024 
cellulosic biofuel requirement and one RFS regulatory amendment. EPA 
proposed several additional amendments to other RFS provisions, a 
majority of which are not being finalized here but may instead be 
addressed in a later action.
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    \1\ 88 FR 44468 (July 12, 2023).
    \2\ 40 CFR 80.1405(a).
    \3\ 89 FR 100442 (December 12, 2024).
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    Based on cellulosic (D3/D7) RIN generation data for 2024, we now 
project that only 1.01 billion cellulosic RINs were generated in 2024, 
a shortfall of 0.08 billion RINs from the 1.09 billion RINs projected 
in the Set 1 Rule. Due to this shortfall and reasons further explained 
in Sections II and III, we are partially waiving the 2024 cellulosic 
biofuel volume requirement to 1.01 billion RINs (the projected 
cellulosic RIN generation in 2024) using the Clean Air Act (CAA) 
section 211(o)(7)(D) ``cellulosic waiver authority.'' In the proposal, 
we proposed to utilize the CAA general waiver authority to partially 
waive the 2024 cellulosic biofuel volume requirement and sought comment 
on the use of the CAA cellulosic waiver authority. After further 
consideration and in response to comments received, we have decided to 
partially waive the 2024 cellulosic biofuel volume requirement using 
the CAA cellulosic waiver authority. The cellulosic waiver authority is 
specific to the cellulosic biofuel standard and its use is mandatory, 
as described further in Section II.B. Use of the cellulosic waiver 
authority also triggers the availability of cellulosic waiver credits 
(CWCs) for 2024 as an additional compliance flexibility for obligated 
parties. As discussed further in the response to comments (RTC) 
document,\4\ we are not reducing the 2024 cellulosic biofuel volume 
using the general waiver authority.
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    \4\ ``Renewable Fuel Standard (RFS) Program Partial Waiver of 
2024 Cellulosic Biofuel Volume Requirement: Response to Comments 
Document,'' EPA-420-R-25-008, June 2025.
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    The supply of advanced biofuel and total renewable fuel in 2024 
exceeded the required volumes by a significant margin, despite the 
shortfall in cellulosic biofuel. Given the surplus of 2024 BBD (D4) and 
advanced (D5) RINs, we are not reducing the volumes for any of the 
other categories of renewable fuel (i.e., biomass-based diesel (BBD), 
advanced biofuel, and total renewable fuel). We are also not making any 
changes to any of the 2025 RFS standards, which were also finalized in 
the Set 1 Rule.\5\
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    \5\ EPA is not reopening the 2025 RFS volumes and standards in 
this proceeding, nor are we reopening any of the 2024 RFS volumes 
and standards besides the 2024 cellulosic biofuel volume and 
standard.
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    Finally, we are also replacing the source of data for the wholesale 
price of gasoline that is used to calculate the price of cellulosic 
waiver credits (CWCs), as discussed in Section IV, as well as making a 
minor revision to the biogas provisions of the RFS program, as 
discussed in Section V.

II. Statutory Background

A. The RFS Program and the Set Authority

    CAA section 211(o)(2)(B) establishes the framework by which EPA is 
to establish annual, nationally applicable minimum volume requirements 
for each of the four categories of renewable fuel that make up the RFS 
program: cellulosic biofuel, BBD, advanced biofuel, and renewable fuel. 
CAA section 211(o)(2)(B)(i) provided specific applicable volumes for 
cellulosic biofuel, advanced biofuel, and renewable fuel for each year 
from 2010 to 2022 and specific applicable volumes for BBD for each year 
from 2010 to 2012.
    For the years beyond those expressly enumerated (i.e., after 2022 
for all categories), CAA section 211(o)(2)(B)(ii) provides that 
applicable volumes are set by EPA in coordination with the United 
States Department of Agriculture (USDA) and Department of Energy (DOE), 
based on a review of the implementation of the RFS program to date, and 
that EPA must analyze specific factors (e.g., the impact of the 
production and use of renewable fuels on the environment, energy 
security, the infrastructure of the United States, and job creation). 
EPA calls this statutory authority to set volumes after 2022 its ``set 
authority.'' CAA section 211(o)(2)(B)(ii) additionally provides that 
under the set authority, EPA shall promulgate applicable volumes no 
later than 14 months prior to the start of the relevant year.\6\
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    \6\ ``The Administrator shall promulgate rules establishing the 
applicable volumes under this clause no later than 14 months before 
the first year for which such applicable volume will apply.'' CAA 
section 211(o)(2)(B)(ii).

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[[Page 29753]]

    This action concerns the 2024 cellulosic biofuel volume requirement 
that was established in the Set 1 Rule, EPA's first RFS rule 
promulgated under the set authority. In the Set 1 Rule, EPA established 
the volume requirements for 2023-2025 using the set authority and 
acknowledged that certain waivers may be available to adjust post-2022 
volume requirements if the requisite statutory conditions are met.\7\
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    \7\ 88 FR 44479 (July 12, 2023) (``While we are establishing 
applicable volume requirements in this action for future years that 
are achievable and appropriate based on our consideration of the 
statutory factors, we retain our legal authority to waive volumes in 
the future under the waiver authorities should circumstances so 
warrant.'').
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B. Cellulosic Waiver Authority

    The cellulosic waiver authority at CAA section 211(o)(7)(D)(i) 
provides that ``[f]or any calendar year for which the projected volume 
of cellulosic biofuel production is less than the minimum applicable 
volume established under [CAA section 211(o)](2)(B)], as determined by 
the Administrator based on the estimate provided under paragraph 
(3)(A),'' EPA ``shall reduce the applicable volume of cellulosic 
biofuel required under paragraph (2)(B) to the projected volume 
available during that calendar year'' and that this reduction shall be 
made ``not later than November 30 of the preceding calendar year.'' For 
those years in which EPA ``makes such a reduction,'' the statute 
further provides that EPA may also ``reduce the applicable volume of 
renewable fuel and advanced biofuels requirement . . . by the same or a 
lesser volume.'' As such, even when EPA exercises its cellulosic waiver 
authority, the determination of whether to correspondingly reduce the 
total renewable fuel or advanced biofuel requirements is discretionary. 
As recognized by EPA in the Set 1 Rule, there may be situations in 
which the CAA section 211(o)(7)(D) cellulosic waiver authority is 
available to waive cellulosic biofuel volume requirements after 
2022.\8\
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    \8\ Section 2.2, ``Renewable Fuel Standard (RFS) Program: 
Standards for 2023-25 and Other Changes, Response to Comments,'' 
EPA-420-R-23-014, June 2023 (``Set 1 Rule RTC'').
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    When EPA determines that the projected volume of cellulosic biofuel 
production for a given year will be less than the annual applicable 
volume established under CAA section 211(o)(2)(B), EPA is then required 
to reduce the applicable volume of cellulosic biofuel for that calendar 
year. Pursuant to this provision, EPA set the cellulosic biofuel volume 
requirement lower than the CAA section 211(o)(2)(B)(i)(III) statutory 
volumes enumerated by Congress for each year from 2010-2022. EPA was 
challenged regarding its interpretation of this statutory provision, 
leading the D.C. Circuit to evaluate various aspects of EPA's 
implementation of its cellulosic waiver authority.\9\ In 2013 in API, 
the court held that EPA must take a ``neutral aim at accuracy'' in 
determining the projected volume of cellulosic biofuel available.\10\ 
In API and Alon Refining Krotz Springs, Inc. v. EPA, the D.C. Circuit 
upheld EPA's decision to use the Energy Information Administration's 
(EIA's) projected volume of cellulosic biofuel production to inform 
EPA's projection, without requiring ``slavish adherence by EPA to the 
EIA estimate,'' and had Congress so intended ``it could have skipped 
the EPA `determination' altogether.'' \11\ In Sinclair Wyoming Refining 
Co. LLC, et al. v. EPA, the D.C. Circuit upheld EPA's reading of the 
statutory phrase ``projected volume available'' to exclude carryover 
RINs.\12\
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    \9\ See, e.g., American Petroleum Institute v. EPA, 706 F.3d 
474, 479 (D.C. Cir. 2013) (``API'') (interpreting the ``projected 
volume available'' and indicating that ``the most natural reading of 
the provision is to call for a projection that aims at accuracy, not 
at deliberately indulging a greater risk of overshooting than 
undershooting'' in projecting the available cellulosic biofuel 
volume); Americans for Clean Energy v. EPA, 864 F.3d 691, 730 (D.C. 
Cir. 2017) (``ACE'') (determining EPA's use of the cellulosic waiver 
authority to reduce advanced and total renewable fuel was 
reasonable); Sinclair Wyoming Refining Co. LLC, et al. v. EPA, 101 
F.4th 871, 883 (2024) (``Sinclair'') (rejecting biofuels producers' 
challenge that EPA must include carryover cellulosic RINs in its 
determination of ``projected volume available during that calendar 
year'').
    \10\ API, 706 F.3d at 476.
    \11\ API, 607 F.3d at 478. See also Alon Refining Krotz Springs, 
Inc. v. EPA, 396 F.3d 628, 660 (D.C. Cir. 2019).
    \12\ Sinclair, 101 F.4th at 883-86.
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    In the proposal, EPA sought comment on whether the cellulosic 
waiver authority is available to reduce the cellulosic biofuel volume 
in 2024. EPA received comments suggesting that the cellulosic waiver 
authority remains available to EPA and that waiving the cellulosic 
biofuel volume requirement under this waiver authority would be 
appropriate. EPA also received comments suggesting that the cellulosic 
waiver authority should not or could not be used in these circumstances 
or that the cellulosic waiver authority is not available at all after 
2022. We address some of these comments in this preamble and address 
others more fully in the RTC document.
    Several commenters suggested that cellulosic waiver authority is 
not available to EPA to reduce volumes after 2022. These commenters 
pointed to CAA section 211(o)(7)(D), which directs EPA to determine if 
there is a projected cellulosic biofuel production shortfall based on 
an estimate provided by the U.S. Energy Information Administration 
(EIA) pursuant to CAA section 211(o)(3)(A). That provision, however, 
was in effect only through 2021.\13\ As noted above, EPA has in the 
past utilized the EIA estimate in conjunction with other data to arrive 
at an estimated projection of cellulosic biofuel production. The EIA 
estimate has never included CNG/LNG in its projection of cellulosic 
biofuel production, even though over 95 percent of the cellulosic 
biofuel volume requirement has been met with CNG/LNG. The D.C. Circuit 
has upheld EPA's use of other information to inform our production 
estimate, particularly for CNG/LNG production that accounts for the 
vast majority of cellulosic biofuel.\14\
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    \13\ CAA section 211(o)(3)(A) provides: ``Not later than October 
31 of each of calendar years 2005 through 2021, the Administrator of 
the Energy Information Administration shall provide to the 
Administrator of the Environmental Protection Agency an estimate, 
with respect to the following calendar year, of the volumes of 
transportation fuel, biomass-based diesel, and cellulosic biofuel 
projected to be sold or introduced into commerce in the United 
States.''
    \14\ See, e.g., ACE, 864 F.3d at 728-30 (upholding EPA's 
cellulosic biofuel projection methodology including, among other 
things. EPA's reliance on biofuel producers' self-reported 
production startup dates, use of production ranges, and a percentile 
approach).
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    In contrast, other statutory references indicate the continuing 
availability of the cellulosic waiver authority to reduce the volumes 
EPA sets under CAA section 211(o)(2)(B). First, CAA section 
211(o)(7)(D) indicates that EPA is to reduce the cellulosic biofuel 
volume ``for any year for which the projected volume of cellulosic 
biofuel is less than the applicable volume.'' The ``any year'' language 
is expansive and is not limited by any other language in the provision, 
indicating that Congress intended for it to be available for all years 
of the RFS program. Second, CAA section 211(o)(2)(B)(iv) indicates that 
EPA shall determine cellulosic volumes ``under the assumption that the 
Administrator will not need to issue a waiver for such years under 
paragraph (7)(D).'' While this language primarily provides guidance to 
EPA on how to determine volumes under CAA section 211(o)(2)(B)(ii), it 
also contemplates the continued existence of the CAA 211(o)(7)(D) 
cellulosic waiver authority in the set years. This is also consistent 
with the reference in CAA section 211(o)(7)(D) directing EPA to compare 
the projected production of cellulosic biofuel to the cellulosic 
biofuel volume ``required under paragraph (2)(B).'' This reference to 
paragraph (2)(B) encompasses all years of the RFS

[[Page 29754]]

program: the compliance years up to 2022 during which EPA applied the 
CAA section 211(o)(2)(B)(i) statutory tables enumerating applicable 
volumes, and the years from 2023 forward during which EPA uses its CAA 
section 211(o)(2)(B)(ii) set authority to determine or set volumes 
applying statutory factors. We conclude that the best reading of the 
statute is that, when read together, the various statutory references 
in CAA section 211(o) indicate that Congress intended the cellulosic 
waiver authority to remain available to EPA for years beyond the 
statutory tables (i.e., 2023 and beyond). For all these reasons, EPA 
believes this interpretation of CAA section 211(o)(7)(D)--that the 
cellulosic waiver authority is available to use in years after 2022--is 
the best reading of the statute given the text, structure of the RFS 
program, and the context of how EPA implements the RFS program year to 
year.\15\ Moreover, such an interpretation is consistent with EPA's 
history of implementing the cellulosic waiver authority in years where 
cellulosic biofuel production falls short of the minimum required 
volume; this is simply the first instance EPA is implementing a partial 
cellulosic waiver in the years where EPA establishes volumes utilizing 
its set authority.\16\
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    \15\ See Loper Bright Enterprises v. Raimondo, 603 U.S. 369, 400 
(2024) (``Loper Bright'') (in overruling Chevron deference, the 
Court observed that it ``makes no sense to speak of a `permissible' 
interpretation [of a statute] that is not the one the court, after 
applying all relevant interpretive tools, concludes is best. In the 
business of statutory interpretation, if it is not the best, it is 
not permissible.'').
    \16\ As discussed further in the RTC document, EPA received a 
petition from the American Fuel and Petrochemical Manufacturers for 
a waiver of the 2023 cellulosic biofuel volume requirement. In 
adjudicating that petition, EPA did not address the cellulosic 
waiver authority and instead focused on a potential waiver under the 
general waiver authority.
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    EPA is implementing the cellulosic waiver authority to reduce the 
2024 cellulosic biofuel volume after the deadline articulated in the 
statute; CAA section 211(o)(7)(D)(i) directs EPA to act ``by November 
30 of the preceding calendar year'' to determine whether cellulosic 
biofuel production is likely to fall short of the volume requirements 
in a given year, and then reduce the standard to the projected volume 
available. Several commenters suggested that such untimely use is 
improper. We disagree. Notably, EPA has implemented the cellulosic 
waiver authority to reduce the cellulosic biofuel volume after the 
November 30 deadline on several occasions.\17\ No party has 
specifically challenged EPA's use of the cellulosic waiver authority 
after the November 30 deadline, but petitioners have unsuccessfully 
challenged EPA's late issuance of standards under other RFS provisions. 
The D.C. Circuit has concluded that EPA retains the ability to issue 
late standards even when it acts after the statutory deadlines have 
passed.\18\ We therefore rely on our past practice in implementing the 
RFS program and favorable case law to implement the cellulosic waiver 
authority to waive the volume requirements for a given year even when 
the November 30 deadline in the preceding year has passed, as it has in 
this instance.
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    \17\ See, e.g., 79 FR 25025 (May 2, 2014) (direct final rule 
reducing the 2013 cellulosic biofuel volume in May 2014), 80 FR 
77420 (December 14, 2015) (final rule reducing the 2014 and 2015 
cellulosic biofuel volumes in December 2015), 87 FR 39600 (July 1, 
2022) (final rule reducing the 2020 and 2021 volumes in July 2022).
    \18\ See ACE, 864 F.3d at 721. See further discussion on this 
topic in RTC Section 2.3.2.
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    CAA section 211(o)(7)(D)(i) also refers to the ``projected volume 
of cellulosic biofuel production'' and the ``projected volume 
available,'' which some commenters suggested is another indication that 
the provision should or could only be used prospectively. EPA believes 
the best reading of the statute is instead that there are projections 
necessary to determine the ``volume of . . . production'' and the 
``volume available,'' both when EPA acts in a timely manner by November 
30 of the preceding year and when EPA waives the volume requirement 
after the November 30 date. The use of the term ``projected'' in the 
statute does contemplate the need for forward-looking estimates; 
however, it does not follow that the statutory language prohibits EPA 
from acting after November 30.\19\
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    \19\ See Loper Bright at 400.
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    We note that the statutory language indicates that the use of the 
cellulosic waiver authority is mandatory. That is, whenever the 
projected volume of cellulosic biofuel production is less than the 
minimum applicable volume established under CAA section (o)(2)(B), EPA 
``shall reduce the applicable volume of cellulosic biofuel required 
under paragraph (2)(B) to the projected volume available during that 
calendar year.'' \20\ EPA implemented this provision for every year 
from 2010-2022 to reduce the cellulosic biofuel volume consistent with 
the statutory directive that EPA shall reduce the volume when the 
requisite conditions are met.\21\
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    \20\ CAA section 211(o)(7)(D)(i).
    \21\ EPA acknowledges that it did not waive the 2023 cellulosic 
biofuel volume requirement. See https://www.epa.gov/renewable-fuel-standard-program/epa-denial-petition-partial-waiver-2023-cellulosic-biofuel.
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    CAA section 211(o)(7)(D)(ii) directs EPA to make CWCs available 
whenever it reduces the cellulosic biofuel volume under CAA section 
211(o)(7)(D). CWCs--which are offered for sale to obligated parties at 
a price established by regulation per the statute \22\--provide 
compliance flexibility for obligated parties. However, it should be 
noted that CWCs only satisfy an obligated party's cellulosic biofuel 
obligation; unlike a cellulosic RIN, a CWC cannot be used to satisfy an 
obligated party's advanced biofuel or total renewable fuel 
obligation.\23\ To obtain the same compliance value as a cellulosic 
RIN, an obligated party using a CWC for compliance with the cellulosic 
biofuel standard needs to also acquire an advanced or BBD RIN to use 
towards meeting its advanced biofuel and total renewable fuel 
obligations. When CWCs are made available, they generally limit or cap 
the price of cellulosic RINs.\24\
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    \22\ CAA section 211(o)(7)(D)(iii); 40 CFR 80.1456.
    \23\ 72 FR 14726-27 (March 26, 2010).
    \24\ See, e.g., 85 FR 7025 (February 6, 2020); 87 FR 39616 (July 
1, 2022).
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    CAA section 211(o)(7)(D) provides that EPA may reduce the 
applicable volume of total renewable fuel and advanced biofuel in years 
when EPA reduces the applicable volume of cellulosic biofuel under that 
provision. That reduction must be less than or equal to the reduction 
in cellulosic biofuel. The D.C. Circuit explained:

    There is no requirement to reduce these latter quotas, nor does 
the statute prescribe any factors that EPA must consider in making 
its decision. . . . In the absence of any express or implied 
statutory directive to consider particular factors, EPA reasonably 
concluded that it enjoys broad discretion regarding whether and in 
what circumstances to reduce the advanced biofuel and total 
renewable fuel volumes under the cellulosic waiver provision.\25\
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    \25\ Monroe v. EPA, 750 F.3d 909, 915 (2014). See, also, ACE at 
721.

    Using this discretion, EPA has, in the past, declined to reduce the 
advanced biofuel and total renewable fuel volumes in certain 
circumstances.\26\ In other circumstances, EPA has reduced the advanced 
biofuel and total renewable fuel volumes using this authority.\27\ It 
is worth noting that EPA's practice of reducing the advanced biofuel 
and total renewable fuel volumes utilizing the cellulosic waiver 
authority in past years served to carry through the partial waiver 
necessitated by the shortfall in cellulosic biofuel to

[[Page 29755]]

the other nested renewable fuel categories when reducing the statutory 
cellulosic biofuel volumes established by Congress in 2007. In many 
cases reductions to the advanced biofuel and total renewable fuel 
volumes were necessary to enable compliance by obligated parties. For 
example, EPA reduced the cellulosic biofuel volume by over 15 billion 
gallons for 2022. Had EPA not also reduced the 2022 advanced biofuel 
and total renewable fuel volumes, these requirements would have been 15 
billion gallons higher, far exceeding the market's ability to supply 
qualifying renewable fuels, even after considering available carryover 
RINs. In contrast, for 2024, a year for which EPA set the volume 
requirements using our set authority, the partial waiver of the 
cellulosic biofuel volume requirement is significantly smaller than in 
prior years (0.08 billion gallons), in part due to the fact that 
instead of starting with a statutory table volume set by Congress many 
years ago, EPA itself established the volume requirements in 2023 under 
the set authority. As discussed further in Section III.A, we are not 
adjusting the 2024 total renewable fuel and advanced biofuel volumes 
because those volumes have been achieved in the market.
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    \26\ See, e.g., 78 FR 49794, 49811 (August 15, 2013).
    \27\ See, e.g., 80 FR 77420 (December 14, 2015). 81 FR 89746 
(December 12, 2016).
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III. Partial Waiver of the 2024 Cellulosic Biofuel Volume Requirement

A. Implementation of the Cellulosic Waiver Authority

    The cellulosic waiver authority is specific regarding when it is 
available and how the volume reduction should be determined when acting 
under the authority, as discussed in Section II. EPA has determined 
that ``the projected volume of cellulosic biofuel production is less 
than the minimum applicable volume'' for 2024 and thus use of the 
cellulosic waiver authority is mandatory to reduce the 2024 cellulosic 
biofuel volume. In the Set 1 Rule, EPA established the ``minimum 
applicable volume'' of cellulosic biofuel for 2024 to be 1.09 billion 
RINs and used that volume to calculate the 2024 cellulosic biofuel 
percentage standard of 0.63 percent.\28\ The actual number of 
cellulosic RINs that obligated parties will ultimately need to retire 
for compliance with the current standard will not be known until after 
the 2024 compliance deadline,\29\ when obligated parties report to EPA 
their 2024 gasoline and diesel production and import volumes.\30\ 
However, for the purpose of making a decision to partially waive the 
2024 cellulosic biofuel volume requirement, we have assumed that the 
actual total 2024 cellulosic biofuel obligation, if not reduced, would 
be 1.09 billion RINs.\31\ Based on RIN generation data for 2024, we 
project that only 1.01 billion cellulosic RINs were generated in 2024, 
representing the projected volume of cellulosic biofuel available in 
2024.\32\ This is 0.08 billion fewer RINs than the 1.09 billion RINs 
needed to comply with the original 2024 cellulosic biofuel standard, a 
shortfall of approximately seven percent. We therefore find that the 
circumstances have triggered the need for implementation of the 
cellulosic waiver authority for 2024.
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    \28\ 88 FR 44470-71 (July 12, 2023).
    \29\ The compliance deadline for the 2024 standards will be the 
first quarterly reporting deadline after the effective date of this 
action revising the 2024 cellulosic biofuel standard. 40 CFR 
80.1451(f)(1)(i)(B)(5).
    \30\ 40 CFR 80.1451 and 80.1427(a).
    \31\ Because the compliance obligation is calculated on a 
percentage basis, if the actual gasoline and diesel volumes reported 
by obligated parties differ from the projected gasoline and diesel 
volumes that were used to derive the percentage standard, then the 
actual number of RINs required for compliance will differ from the 
projected volume that was used to calculate the percentage standard. 
Although we rely on the 1.09-billion-RIN projection for 2024 in the 
Set 1 Rule that was the basis for the 2024 cellulosic biofuel 
percentage standard, EPA would reach the same conclusion to waive 
the 2024 cellulosic biofuel volume requirement, for the reasons 
stated below, using a higher RIN obligation (i.e., a higher gasoline 
and diesel projection).
    \32\ See ``Total Net Generation'' RIN data table at: https://www.epa.gov/fuels-registration-reporting-and-compliance-help/rins-generated-transactions. This table includes all reported cellulosic 
RINs that were generated in 2024 and were not otherwise retired due 
to RIN generation error (i.e., an invalid RIN). Thus, the volume of 
2024 cellulosic RINs in this table is the volume of RINs that have 
been made available for compliance with the 2024 cellulosic biofuel 
standard.
---------------------------------------------------------------------------

    When EPA determines that a waiver of the cellulosic biofuel volume 
requirement is appropriate under CAA section 211(o)(7)(D)(i), EPA must 
then reduce the required cellulosic biofuel volume to ``the projected 
volume available.'' We have previously interpreted the phrase 
``projected volume available'' to exclude carryover RINs when 
determining the volume adjustment to be made; this interpretation was 
affirmed by the D.C. Circuit in Sinclair.\33\ EPA has consistently 
interpreted the ``projected volume available'' as ``the volume of 
qualifying cellulosic biofuel projected to be produced or imported and 
available for use as transportation fuel in the U.S. in that year.'' 
\34\ In determining the ``projected volume available,'' EPA must take a 
``neutral aim at accuracy.'' \35\
---------------------------------------------------------------------------

    \33\ Sinclair, 101 F.4th at 883-86.
    \34\ See, e.g., 87 FR 39600 (July 1, 2022). See also Sinclair, 
101 F.4th at 883-86.
    \35\ API v. EPA, 706 F.3d 474, 479 (D.C. Cir. 2013).
---------------------------------------------------------------------------

    As discussed above, the projected volume of cellulosic biofuel 
available in 2024 was 1.01 billion RINs. Thus, when the cellulosic 
waiver authority is applied, EPA is only able to reduce the 2024 
cellulosic biofuel volume to the projected volume available of 1.01 
billion RINs. However, in accordance with the statute, EPA is also 
required to make CWCs available to obligated parties, which can be 
used--along with additional BBD or advanced RINs--to cover any 
remaining shortfall.\36\ The availability of CWCs helps ensure RFS 
program stability by reducing the likelihood that obligated parties may 
be forced into non-compliance with their RFS obligations; any obligated 
party that is unable to acquire sufficient cellulosic RINs to comply 
with their 2024 cellulosic biofuel obligations--plus any cellulosic RIN 
deficit carried from 2023 \37\--will be able to purchase CWCs to cover 
the shortfall.\38\
---------------------------------------------------------------------------

    \36\ Pursuant to 40 CFR 80.1405(d), the CWC price is calculated 
using the methodology specified in 40 CFR 80.1456(d) and posted on 
EPA's website at: https://www.epa.gov/renewable-fuel-standard-program/cellulosic-waiver-credits-under-renewable-fuel-standard-program.
    \37\ As noted in the proposal, we are aware of RIN deficits from 
the 2023 compliance year that will need to be fulfilled by the 2024 
compliance deadline. 89 FR 100442, 100445-46 (December 12, 2024). 
This topic is discussed further in the RTC document.
    \38\ Unlike cellulosic RINs--which apply towards an obligated 
party's cellulosic biofuel, advanced biofuel, and total renewable 
fuel obligations--CWCs only apply towards an obligated party's 
cellulosic biofuel obligation and not toward their nested advanced 
biofuel and total renewable fuel obligation. Obligated parties that 
satisfy their cellulosic biofuel obligations with CWCs would 
therefore also have to purchase additional BBD or advanced RINs to 
meet their associated advanced biofuel and total renewable fuel 
obligations.
---------------------------------------------------------------------------

    Given that ``the projected volume of cellulosic biofuel production 
is less than the minimum applicable volume'' for 2024, we are 
implementing the cellulosic waiver authority to waive the 2024 
cellulosic biofuel volume requirement to 1.01 billion RINs, a reduction 
of 0.08 billion RINs from the original volume requirement of 1.09 
billion RINs. This volume requirement matches the actual cellulosic RIN 
generation for 2024 of 1.01 billion RINs.
    Finally, CAA section 211(o)(7)(D) provides that EPA may reduce the 
applicable volume of total renewable fuel and advanced biofuel in years 
when EPA reduces the applicable volume of cellulosic biofuel under that 
provision. That reduction must be less than or equal to the reduction 
in cellulosic biofuel. The D.C. Circuit concluded that the cellulosic 
waiver authority provides EPA ``broad discretion'' to consider a 
variety of factors in determining whether to reduce the total renewable 
fuel and advanced biofuel volumes

[[Page 29756]]

under this provision.\39\ Advanced and total RIN generation for 2024 
exceeded the required volumes by over 3.8 billion RINs (10.42 billion 
advanced RINs generated vs. 6.54 billion RIN advanced biofuel volume 
requirement) and 3.7 billion RINs (25.30 billion total RINs generated 
vs. 21.54 billion total renewable fuel volume requirement), 
respectively, notwithstanding the projected shortfall in cellulosic 
biofuel production.\40\ Thus, we believe reductions to the 2024 
advanced biofuel and total renewable fuel volumes are not necessary or 
warranted based on the available supply data, given that the market has 
provided volumes of these fuels in excess of the requirements 
established in the Set 1 Rule. Reductions in these volume requirements 
at this time would only serve to increase the number of advanced and 
total carryover RINs. Historically, we have declined to take actions 
that would inflate the number of available carryover RINs.\41\
---------------------------------------------------------------------------

    \39\ ACE at 730-734. See also Monroe Energy, LLC v. EPA, 750 
F.3d 909 (D.C. Cir. 2014).
    \40\ See ``Total Net Generation'' RIN data table at: https://www.epa.gov/fuels-registration-reporting-and-compliance-help/rins-generated-transactions. This table includes all reported RINs that 
were generated in 2024 and were not otherwise retired due to RIN 
generation error (i.e., an invalid RIN). Thus, the volume of 2024 
RINs in this table is the volume of RINs that have been made 
available for compliance with the 2024 RFS standards.
    \41\ 87 FR 39600, 39621 (July 1, 2022) (``While EPA has 
previously set the RFS standards at what the market actually used 
(like for 2014 and 2015 in the 2014-2016 rule), we have never 
intentionally reduced the standards with the express intent to 
inflate the size of the carryover RIN bank.''); ``Renewable Fuel 
Standard (RFS) Program: RFS Annual Rules--Response to Comments,'' 
EPA-420-R-22-009, June 2022, Section 2.6.1.
---------------------------------------------------------------------------

B. Economic Impact Analysis

    This section discusses our analysis of the anticipated economic 
impact of the partial waiver of the 2024 cellulosic biofuel volume 
requirement. Consistent with the goals of Executive Orders 12866 and 
14192, this analysis is intended to provide transparency regarding the 
costs and benefits of this economically significant deregulatory 
action. Because we are reducing the 2024 cellulosic biofuel volume, 
this action is expected to result in significant costs savings. 
However, quantitatively projecting the economic impact of this 
reduction is challenging for several reasons. First, the partial waiver 
is due to a shortfall in the volume of cellulosic biofuel in 2024. 
Because of this, higher volumes of cellulosic RINs cannot simply be 
made available at greater prices; instead, obligated parties will be 
unable to purchase additional quantities of 2024 cellulosic RINs at any 
price. The potential economic impact of this action is further 
complicated by the fact that while some obligated parties can defer 
some or all of their 2024 cellulosic biofuel obligation to 2025, other 
obligated parties that already carried cellulosic RIN deficits from 
2023 into 2024 are required to fully satisfy their cellulosic biofuel 
obligations in 2024, including the cellulosic RIN deficits carried 
forward from 2023. Any party that fails to do so would likely be in 
non-compliance and could be subject to penalties.\42\
---------------------------------------------------------------------------

    \42\ We recognize that the cellulosic waiver authority is 
mandatory, and thus avoids the potential noncompliance and lack of 
RINs described herein. Nevertheless, we describe these potential 
outcomes to illustrate the difficulty in calculating the cost 
savings of the action.
---------------------------------------------------------------------------

    Despite the complications associated with estimating the economic 
impacts of this action, we can determine that it will result in cost 
savings. Because we are unable to estimate the cost of production of 
cellulosic biofuel that was not produced, we are estimating the cost 
savings of this action using RIN prices to approximate the cost of the 
marginal gallon of cellulosic biofuel relative to the petroleum fuel 
the marginal gallon displaces.\43\ We are reducing only the 2024 
cellulosic biofuel volume. Because we are not reducing the 2024 
advanced biofuel and total renewable fuel volumes, this action 
effectively replaces the reduced cellulosic biofuel volume with 
additional volumes of advanced biofuel, which generally has a lower 
marginal cost than cellulosic biofuel.\44\ In 2024, the average price 
for a cellulosic (D3/D7) RIN was $3.11 and the average price for a D4/
D5 RIN was $0.78.\45\ The price difference between a D3/D7 RIN and a 
D4/D5 RIN was $2.34. Multiplying this price difference by the magnitude 
of the reduction in the cellulosic biofuel volume requirement (80 
million RINs), we estimate a cost savings of $187 million from this 
action.
---------------------------------------------------------------------------

    \43\ We are using these RIN prices to approximate the societal 
cost for these fuels. Our analyses indicate that, on average across 
the U.S., RIN costs are recovered by obligated parties and passed 
through to consumers. For a further discussion of the ability of 
obligated parties to recover the cost of RINs see ``Denial of 
Petitions for Rulemaking to Change the RFS Point of Obligation,'' 
EPA-420-R-17-008, November 2017.
    \44\ The nested nature of the RFS program allows cellulosic 
biofuel to be used to meet the advanced biofuel and total renewable 
fuel volume requirements. Any cellulosic biofuel that can be 
supplied beyond the required volume can be used in place of advanced 
biofuel.
    \45\ Prices based on EMTS data. RIN prices are the average of 
all trades of vintage 2023 and 2024 separated RINs in calendar year 
2024.
---------------------------------------------------------------------------

    Finally, we can reasonably project that because this action will 
reduce demand for cellulosic RINs, it is expected to directionally 
decrease cellulosic RIN prices. The exact magnitude of this price 
reduction depends on a wide range of market factors that prevent us 
from quantitively projecting a RIN price impact. At the same time, 
because this action incrementally increases demand for advanced RINs, 
it is projected to directionally increase BBD and advanced RIN prices. 
We note, however, that this price impact is expected to be relatively 
small, as this action will increase demand for advanced biofuel by the 
magnitude of the partial waiver of the 2024 cellulosic biofuel volume 
requirement (0.08 billion RINs). This is less than one percent of the 
supply of advanced biofuel for 2024 (10.41 billion RINs).

C. Calculation of 2024 Cellulosic Biofuel Percentage Standard

    The obligated parties to which the percentage standards apply are 
producers and importers of gasoline and diesel, as defined by 40 CFR 
80.2. Each obligated party multiplies the percentage standards by the 
sum of all non-renewable gasoline and diesel they produce or import to 
determine their Renewable Volume Obligations (RVOs).\46\ The RVOs are 
the number of RINs that the obligated party is responsible for 
procuring and retiring to demonstrate compliance with the applicable 
standards for that year. As described in Section III.A, we are 
implementing the cellulosic waiver authority to partially waive the 
2024 cellulosic biofuel volume requirement from 1.09 billion RINs to 
1.01 billion RINs.
---------------------------------------------------------------------------

    \46\ 40 CFR 80.1407.

---------------------------------------------------------------------------

[[Page 29757]]

    The formula used to calculate the cellulosic biofuel percentage 
standard applicable to obligated parties as a function of their 
gasoline and diesel fuel production or importation is provided in 40 
CFR 80.1405(c). Using the same values from the Set 1 Rule for the 
variables in this formula other than RFVCB (the cellulosic 
biofuel volume),\47\ we have calculated the revised cellulosic biofuel 
percentage standard for 2024 to be 0.59 percent, down from 0.63 
percent.\48\ This percentage standard is included in the regulations at 
40 CFR 80.1405(a) and applies to producers and importers of gasoline 
and diesel.
---------------------------------------------------------------------------

    \47\ 88 FR 44519-21 (July 12, 2023).
    \48\ See ``Calculation of 2024 Cellulosic Biofuel Percentage 
Standard,'' available in the docket for this action.
---------------------------------------------------------------------------

IV. Change to Calculation of Cellulosic Waiver Credit Price

    As discussed in Section II.B, for any year for which EPA uses the 
cellulosic waiver authority to reduce the required volume of cellulosic 
biofuel, EPA must provide obligated parties the opportunity to purchase 
CWCs. The price of these credits is determined using a formula 
specified in CAA section 211(o)(7)(D)(ii), which is ``at the higher of 
$0.25 per gallon or the amount by which $3.00 per gallon exceeds the 
average wholesale price of a gallon of gasoline in the United States,'' 
adjusted for inflation. The RFS regulations previously specified that 
the ``U.S. Total Gasoline Bulk Sales (Price) by Refiners as provided by 
the Energy Information Administration'' is to be used to determine the 
average wholesale price of gasoline and the inflation adjustment.\49\ 
However, this data source is no longer being issued by EIA and has not 
been updated since March 2022.
---------------------------------------------------------------------------

    \49\ 40 CFR 80.1456(d)(2).
---------------------------------------------------------------------------

    We are therefore revising our regulations to point to a new data 
source for the average wholesale price of gasoline to be used in the 
calculation of the CWC price. The only wholesale gasoline prices 
currently reported by EIA are spot prices for New York Harbor 
(conventional gasoline), U.S. Gulf Coast (conventional gasoline), and 
Los Angeles (RBOB regular gasoline).\50\ We proposed to revise the 
regulations to calculate the average wholesale gasoline price using a 
weighted average of EIA's reported spot prices for wholesale gasoline 
using the weighting factors specified in Table IV-1. Commenters were 
generally supportive of the proposed changes and therefore we are 
finalizing these new data sources and weighting factors as proposed.
---------------------------------------------------------------------------

    \50\ This data is publicly available at: EIA, ``Spot Prices,'' 
Petroleum & Other Liquids. https://www.eia.gov/dnav/pet/pet_pri_spt_s1_m.htm.

   Table IV-1--Weighting Factors for Calculating the Average Wholesale
                             Gasoline Price
------------------------------------------------------------------------
                                                    Weighting factor \a\
                  EIA spot price                             (%)
------------------------------------------------------------------------
New York Harbor (conventional gasoline)...........                  37.5
U.S. Gulf Coast (conventional gasoline)...........                  37.5
Los Angeles (RBOB regular gasoline)...............                  25.0
------------------------------------------------------------------------
\a\ Weighting factors based on approximate amounts of conventional
  gasoline (CG) and reformulated gasoline (RFG) sold in the United
  States, with an equal weighting factor for the New York Harbor and
  U.S. Gulf Coast CG prices. EPA currently estimates that approximately
  25 percent of gasoline sold in the United States is RFG (https://www.epa.gov/gasoline-standards/reformulated-gasoline).

    Consistent with the approach used for the previous EIA data source, 
we are specifying that the CWC price is calculated using average 
monthly gasoline spot price data from the 12-month period ending June 
of the year prior to the relevant year (e.g., July 2022 to June 2023 
for the 2024 CWC price). Since we are using the cellulosic waiver 
authority to partially waive the 2024 cellulosic biofuel volume 
requirement in this action, CWCs will be made available to obligated 
parties to purchase for the 2024 compliance year. Using the new data 
sources and weighting factors in Table IV-1 results in a 2024 CWC price 
of $1.61.\51\
---------------------------------------------------------------------------

    \51\ EPA, ``2024 Cellulosic Waiver Credit Price Calculation,'' 
EPA 420-B-25-017, June 2025.
---------------------------------------------------------------------------

V. Measurement of Renewable CNG/LNG Using Documentation

    We are also amending 40 CFR 80.155(a) to clarify that renewable 
natural gas (RNG) RIN separators may obtain the measurement of 
renewable CNG/LNG through documentation. Under 40 CFR 80.155(a), 
measurements of renewable CNG/LNG must be made using specified in-line 
GC meters and flow meters, or with an EPA-accepted alternative 
measurement protocol. We proposed and are now finalizing an additional 
option to allow RNG RIN separators to use documentation that 
establishes the volumes of natural gas or renewable CNG/LNG dispensed 
to satisfy the continuous measurement requirement. Because these 
statements are typically based on readings from meters that generally 
comport with the already specified meter standards, EPA has concluded 
this is an appropriate approach for RNG RIN separators to determine the 
amount of renewable CNG/LNG used as transportation fuel.
    Commenters were generally supportive of this proposed change. In 
the proposal, we provided the example of a pipeline or utility 
statement as acceptable documentation for purposes of establishing the 
volume of natural gas or renewable CNG/LNG. Several commenters 
suggested that EPA add language to clarify that weigh tickets and bills 
of lading are also acceptable documentation for renewable LNG, as well 
as specify default conversion factors for documentation that is not 
provided in Btu. We agree with the commenters and have added weigh 
tickets and bills of lading as further examples to the final 
regulations, as well as default conversion factors in 40 CFR 80.155(f).
    EPA continues to evaluate the other proposed updates and 
clarifications to the RFS biogas regulations, including other proposed 
revisions to 40 CFR 80.155(a), and may finalize them in a later action.

VI. Severability

    We intend for the regulations promulgated in this action to 
implement the cellulosic waiver credit price calculation and 
measurement of renewable CNG/LNG to be severable from our action to 
implement the cellulosic waiver authority to reduce the 2024 cellulosic 
biofuel volume. These actions are distinct and independent, with 
separate justifications. Therefore, if a court were to invalidate the 
use of the cellulosic waiver authority, we would intend for the 
regulatory changes to remain in place.

VII. Judicial Review

    Section 307(b)(1) of the CAA governs judicial review of final 
actions by the EPA. This section provides, in part, that

[[Page 29758]]

petitions for review must be filed in the United States Court of 
Appeals for the District of Columbia Circuit: (i) when the agency 
action consists of specifically enumerated actions or ``any other 
nationally applicable regulations promulgated, or final action taken, 
by the Administrator,'' or (ii) when such action is locally or 
regionally applicable, but ``such action is based on a determination of 
nationwide scope or effect and if in taking such action the 
Administrator finds and publishes that such action is based on such a 
determination.'' For locally or regionally applicable final actions 
that are based on a determination of nationwide scope or effect, the 
CAA reserves to the EPA complete discretion to decide whether to invoke 
the exception in (ii).\52\
---------------------------------------------------------------------------

    \52\ Sierra Club v. EPA, 47 F.4th 738, 745 (D.C. Cir. 2022) 
(``EPA's decision whether to make and publish a finding of 
nationwide scope or effect is committed to the agency's discretion 
and thus is unreviewable''); Texas v. EPA, 983 F.3d 826, 83435 (5th 
Cir. 2020).
---------------------------------------------------------------------------

    This final action modifies requirements under section 211(o) of the 
Clean Air Act, 42 U.S.C. 7545(o). Because this final action promulgates 
a revised standard and regulatory amendments under the CAA, it is 
``nationally applicable'' under CAA section 307(b)(1) either as one of 
the specifically enumerated actions (``any control or prohibition under 
section 7545 of this title'') or as a ``nationally applicable 
regulation[ ] promulgated . . . by the Administrator.'' Under section 
307(b)(1) of the CAA, petitions for judicial review of this action must 
be filed in the United States Court of Appeals for the District of 
Columbia Circuit by September 5, 2025. Filing a petition for 
reconsideration by the Administrator of this final action under CAA 
section 307(d)(7)(B) does not affect the finality of the action for 
purposes of judicial review, nor does it extend the time within which a 
petition for judicial review must be filed, and shall not postpone the 
effectiveness of the action.

VIII. Statutory and Executive Order Reviews

    Additional information about these statutes and Executive orders 
can be found at https://www.epa.gov/laws-regulations/laws-and-executive-orders.

A. Executive Order 12866: Regulatory Planning and Review

    This is an economically significant regulatory action because it 
meets the criteria in section 3(f)(1) of Executive Order 12866. 
Accordingly, EPA submitted this action to the Office of Management and 
Budget (OMB) for Executive Order 12866 review. Documentation of any 
changes made in response to the Executive Order 12866 review is 
available in the docket. EPA prepared an analysis of the potential 
economic impacts associated with this action, available in Section 
III.B.

B. Executive Order 14192: Unleashing Prosperity Through Deregulation

    This action is considered an Executive Order 14192 deregulatory 
action. Details on the estimated cost savings of this final rule can be 
found in EPA's analysis of the economic impact associated with this 
action in Section III.B.

C. Paperwork Reduction Act (PRA)

    This action does not impose an information collection burden under 
the PRA. OMB has previously approved the information collection 
activities related to this final rule and has assigned the following 
OMB control numbers 2060-0725, 2060-0740, and 2060-0749. This action 
reduces the required cellulosic biofuel volume for 2024 and does not 
impose new or different reporting requirements on regulated parties 
than already exist for the RFS program.

D. Regulatory Flexibility Act (RFA)

    I certify that this action will not have a significant economic 
impact on a substantial number of small entities under the RFA. In 
making this determination, EPA concludes that the impact of concern for 
this rule is any significant adverse economic impact on small entities 
and that the agency is certifying that this rule will not have a 
significant economic impact on a substantial number of small entities 
because the rule relieves regulatory burden on the small entities 
subject to the rule.
    The small entities directly regulated by the RFS program are small 
refiners, which are defined at 13 CFR 121.201. EPA believes that there 
are currently 6 refiners (owning 7 refineries) producing gasoline and/
or diesel that meet the definition of small entity by having 1,500 
employees or fewer. This action decreases burden via a reduction in the 
2024 cellulosic biofuel standard, which applies proportionally to all 
obligated parties, including small refiners. We have therefore 
concluded that this action will relieve regulatory burden for all 
directly regulated small entities.

E. Unfunded Mandates Reform Act (UMRA)

    This action does not contain an unfunded mandate of $100 million 
(adjusted annually for inflation) or more (in 1995 dollars) as 
described in UMRA, 2 U.S.C. 1531-1538, and does not significantly or 
uniquely affect small governments. The action implements a mandate 
specifically and explicitly set forth in CAA section 211(o)(7)(D) 
without the exercise of any policy discretion by EPA.

F. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have 
substantial direct effects on the States, on the relationship between 
the National Government and the States, or on the distribution of power 
and responsibilities among the various levels of government.

G. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    This action does not have Tribal implications as specified in 
Executive Order 13175. This action will be implemented at the Federal 
level and affects transportation fuel refiners, blenders, marketers, 
distributors, importers, exporters, and renewable fuel producers and 
importers. Tribal governments would be affected only to the extent they 
produce, purchase, and use regulated fuels. Thus, Executive Order 13175 
does not apply to this action.

H. Executive Order 13045: Protection of Children From Environmental 
Health Risks and Safety Risks

    EPA interprets Executive Order 13045 as applying only to those 
regulatory actions that concern environmental health or safety risks 
that EPA has reason to believe may disproportionately affect children, 
per the definition of ``covered regulatory action'' in section 2-202 of 
the Executive order. Therefore, this action is not subject to Executive 
Order 13045 because it reduces the 2024 cellulosic biofuel volume and 
does not concern an environmental health risk or safety risk. Since 
this action does not concern human health, EPA's Policy on Children's 
Health also does not apply.

I. Executive Order 13211: Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use

    This action is not a ``significant energy action'' because it is 
not likely to have a significant adverse effect on the supply, 
distribution, or use of energy. This action reduces the required 
cellulosic biofuel volume for 2024 consistent with the volume of such 
fuel actually made available in 2024. Therefore, it is not expected to 
have any impact on the supply, distribution, or use of energy. In 
general, the RFS

[[Page 29759]]

program is designed to achieve positive effects on the Nation's 
transportation fuel supply by increasing energy independence and 
security.

J. National Technology Transfer and Advancement Act (NTTAA) and 1 CFR 
Part 51

    This action does not involve technical standards.
    ASTM D3588 is referenced in the amendatory text of this document 
and has already been approved for Sec.  80.155. There are no changes to 
the IBR material.

K. Congressional Review Act (CRA)

    This action is subject to the CRA, and the EPA will submit a rule 
report to each House of the Congress and to the Comptroller General of 
the United States. This action is not a ``major rule'' as defined by 5 
U.S.C. 804(2).

IX. Statutory Authority

    Statutory authority for this action comes from sections 114, 203-
05, 208, 211, and 301 of the Clean Air Act, 42 U.S.C. 7414, 7522-24, 
7542, 7545, and 7601.

List of Subjects in 40 CFR Part 80

    Environmental protection, Administrative practice and procedure, 
Air pollution control, Diesel fuel, Fuel additives, Gasoline, Imports, 
Incorporation by reference, Oil imports, Petroleum, Renewable fuel.

Lee Zeldin,
Administrator.

    For the reasons set forth in the preamble, EPA amends 40 CFR part 
80 as follows:

PART 80--REGULATION OF FUELS AND FUEL ADDITIVES

0
1. The authority citation for part 80 continues to read as follows:

    Authority:  42 U.S.C. 7414, 7521, 7542, 7545, and 7601(a).

Subpart E--Biogas-Derived Renewable Fuel

0
2. Amend Sec.  80.155 by:
0
a. Revising paragraph (a) introductory text;
0
b. Adding paragraphs (a)(4) and (5); and
0
c. Revising paragraph (f).
    The revisions and addition read as follows:


Sec.  80.155  Sampling, testing, and measurement.

    (a) Biogas and RNG continuous measurement. Except as specified in 
paragraph (a)(5) of this section, any party required to measure the 
volume of biogas, RNG, or renewable CNG/LNG under this subpart must 
continuously measure using meters that comply with the requirements in 
paragraphs (a)(1) and (2) of this section, or have an accepted 
alternative measurement protocol as specified in paragraph (a)(3) of 
this section:
* * * * *
    (4) [Reserved]
    (5) An RNG RIN separator must measure natural gas or renewable CNG/
LNG using one of the following:
    (i) A method specified in paragraphs (a)(1) through (3) of this 
section.
    (ii) Documentation (e.g., pipeline or utility statements, scale 
tickets, or bills of lading) that establishes the volume of natural gas 
or renewable CNG/LNG. Documentation must be specified in Btu LHV or 
converted as specified in paragraph (f) of this section.
* * * * *
    (f) Unit conversions. (1) A party converting between Btu HHV and 
Btu LHV for biogas, treated biogas, natural gas, or CNG/LNG must use 
the ratio of HHV and LHV of methane as specified in ASTM D3588 
(incorporated by reference, see Sec.  80.12).
    (2) A party with documentation under paragraph (a)(5) of this 
section that is not specified in Btu must convert to Btu LHV as 
follows:
    (i) A party converting between scf and Btu LHV for CNG must use 934 
Btu LHV/scf.
    (ii) A party converting between pounds and Btu LHV for LNG must use 
21,240 Btu LHV/lb.
* * * * *

Subpart M--Renewable Fuel Standard

0
3. Amend Sec.  80.1405 by revising entry ``2024'' in table 1 to 
paragraph (a) to read as follows:


Sec.  80.1405  What are the Renewable Fuel Standards?

    (a) * * *

                            Table 1 to Paragraph (a)--Annual Renewable Fuel Standards
----------------------------------------------------------------------------------------------------------------
                                                                 Advanced
                                 Cellulosic    Biomass- based    biofuel     Renewable fuel   Supplemental total
             Year                  biofuel    diesel standard    standard     standard (%)      renewable fuel
                                standard (%)        (%)            (%)                           standard (%)
----------------------------------------------------------------------------------------------------------------
 
                                                  * * * * * * *
2024..........................         0.59             2.82         3.79             12.50                 n/a
 
                                                  * * * * * * *
----------------------------------------------------------------------------------------------------------------

* * * * *

0
4. Amend Sec.  80.1456 by revising paragraph (d)(2) to read as follows:


Sec.  80.1456  What are the provisions for cellulosic biofuel waiver 
credits?

* * * * *
    (d) * * *
    (2) The wholesale price of gasoline is calculated by applying the 
weighting factors specified in table 1 to this paragraph (d)(2) to the 
average monthly gasoline spot price values specified in table 1 for the 
twelve-month period ending June of the year preceding the compliance 
period.

   Table 1 to Paragraph (d)(2)--Wholesale Price of Gasoline Weighting
                                 Factors
------------------------------------------------------------------------
                                                               Weighting
             Gasoline spot price data source \1\              factor (%)
------------------------------------------------------------------------
Conventional Gasoline--New York Harbor, Regular.............        37.5
Conventional Gasoline--U.S. Gulf Coast, Regular.............        37.5

[[Page 29760]]

 
RBOB Regular Gasoline--Los Angeles..........................        25.0
------------------------------------------------------------------------
\1\ Reported by the Energy Information Administration.

* * * * *
[FR Doc. 2025-11153 Filed 7-3-25; 8:45 am]
BILLING CODE 6560-50-P