[Title 40 CFR ]
[Code of Federal Regulations (annual edition) - July 1, 2024 Edition]
[From the U.S. Government Publishing Office]



[[Page i]]

          

          Title 40

Protection of Environment


________________________

Parts 79 to 80

                         Revised as of July 1, 2024

          Containing a codification of documents of general 
          applicability and future effect

          As of July 1, 2024
                    Published by the Office of the Federal Register 
                    National Archives and Records Administration as a 
                    Special Edition of the Federal Register

[[Page ii]]

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[[Page iii]]







As of July 1, 2024

Title 40, Part 80

Revised as of July 1, 2023

Is Replaced by

Title 40, Parts 79 to 80



[[Page v]]





                            Table of Contents



                                                                    Page
  Explanation.................................................     vii

  Title 40:
          Chapter I--Environmental Protection Agency 
          (Continued)                                                3
  Finding Aids:
      Table of CFR Titles and Chapters........................     269
      Alphabetical List of Agencies Appearing in the CFR......     289
      List of CFR Sections Affected...........................     299

[[Page vi]]





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

                     Cite this Code: CFR
                     To cite the regulations in 
                       this volume use title, 
                       part and section number. 
                       Thus, 40 CFR 79.1 refers 
                       to title 40, part 79, 
                       section 1.

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

[[Page vii]]



                               EXPLANATION

    The Code of Federal Regulations is a codification of the general and 
permanent rules published in the Federal Register by the Executive 
departments and agencies of the Federal Government. The Code is divided 
into 50 titles which represent broad areas subject to Federal 
regulation. Each title is divided into chapters which usually bear the 
name of the issuing agency. Each chapter is further subdivided into 
parts covering specific regulatory areas.
    Each volume of the Code is revised at least once each calendar year 
and issued on a quarterly basis approximately as follows:

Title 1 through Title 16.................................as of January 1
Title 17 through Title 27..................................as of April 1
Title 28 through Title 41...................................as of July 1
Title 42 through Title 50................................as of October 1

    The appropriate revision date is printed on the cover of each 
volume.

LEGAL STATUS

    The contents of the Federal Register are required to be judicially 
noticed (44 U.S.C. 1507). The Code of Federal Regulations is prima facie 
evidence of the text of the original documents (44 U.S.C. 1510).

HOW TO USE THE CODE OF FEDERAL REGULATIONS

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OMB CONTROL NUMBERS

    The Paperwork Reduction Act of 1980 (Pub. L. 96-511) requires 
Federal agencies to display an OMB control number with their information 
collection request.

[[Page viii]]

Many agencies have begun publishing numerous OMB control numbers as 
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``[RESERVED]'' TERMINOLOGY

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that volume.

[[Page ix]]

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    Oliver A. Potts,
    Director,
    Office of the Federal Register
    July 1, 2024







[[Page xi]]



                               THIS TITLE

    Title 40--Protection of Environment is composed of thirty-seven 
volumes. The parts in these volumes are arranged in the following order: 
Parts 1-49, parts 50-51, part 52 (52.01-52.1018), part 52 (52.1019-
52.2019), part 52 (52.2020-end of part 52), parts 53-59, part 60 (60.1-
60.499), part 60 (60.500-end of part 60, sections), part 60 
(Appendices), parts 61-62, part 63 (63.1-63.599), part 63 (63.600-
63.1199), part 63 (63.1200-63.1439), part 63 (63.1440-63.6175), part 63 
(63.6580-63.8830), part 63 (63.8980-end of part 63), parts 64-71, parts 
72-78, parts 79-80, part 81, parts 82-84, parts 85-96, parts 97-99, 
parts 100-135, parts 136-149, parts 150-189, parts 190-259, parts 260-
265, parts 266-299, parts 300-399, parts 400-424, parts 425-699, parts 
700-722, parts 723-789, parts 790-999, parts 1000-1059, and part 1060 to 
end. The contents of these volumes represent all current regulations 
codified under this title of the CFR as of July 1, 2024.

    Chapter I--Environmental Protection Agency appears in all thirty-
seven volumes. OMB control numbers for title 40 appear in Sec.  9.1 of 
this chapter.

    Chapters IV-IX--Regulations issued by the Environmental Protection 
Agency and Department of Justice, Council on Environmental Quality, 
Chemical Safety and Hazard Investigation Board, Environmental Protection 
Agency and Department of Defense; Uniform National Discharge Standards 
for Vessels of the Armed Forces, Gulf Coast Ecosystem Restoration 
Council, and the Federal Permitting Improvement Steering Council appear 
in volume thirty-seven.

    For this volume, Gabrielle E. Burns was Chief Editor. The Code of 
Federal Regulations publication program is under the direction of John 
Hyrum Martinez, assisted by Stephen J. Frattini.

[[Page 1]]



                   TITLE 40--PROTECTION OF ENVIRONMENT




                   (This book contains parts 79 to 80)

  --------------------------------------------------------------------
                                                                    Part

chapter i--Environmental Protection Agency (Continued)......          79

[[Page 3]]



         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)




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


  Editorial Note: Nomenclature changes to chapter I appear at 65 FR 
47324, 47325, Aug. 2, 2000; 66 FR 34375, 34376, June 28, 2001; and 69 FR 
18803, Apr. 9, 2004.

                 SUBCHAPTER C--AIR PROGRAMS (CONTINUED)
Part                                                                Page
79              Registration of fuels and fuel additives....           5
80              Regulation of fuels and fuel additives......         102

[[Page 5]]



                  SUBCHAPTER C_AIR PROGRAMS (CONTINUED)





PART 79_REGISTRATION OF FUELS AND FUEL ADDITIVES--Table of Contents



                      Subpart A_General Provisions

Sec.
79.1 Applicability.
79.2 Definitions.
79.3 Availability of information.
79.4 Requirement of registration.
79.5 Periodic reporting requirements.
79.6 Requirement for testing.
79.7 Samples for test purposes.
79.8 Penalties.

                 Subpart B_Fuel Registration Procedures

79.10 Application for registration by fuel manufacturer.
79.11 Information and assurances to be provided by the fuel 
          manufacturer.
79.12 Determination of noncompliance.
79.13 Registration.
79.14 Termination of registration of fuels.

               Subpart C_Additive Registration Procedures

79.20 Application for registration by additive manufacturer.
79.21 Information and assurances to be provided by the additive 
          manufacturer.
79.22 Determination of noncompliance.
79.23 Registration.
79.24 Termination of registration of additives.

              Subpart D_Designation of Fuels and Additives

79.30 Scope.
79.31 Additives.
79.32 Motor vehicle gasoline.
79.33 Motor vehicle diesel fuel.

Subpart E [Reserved]

             Subpart F_Testing Requirements for Registration

79.50 Definitions.
79.51 General requirements and provisions.
79.52 Tier 1.
79.53 Tier 2.
79.54 Tier 3.
79.55 Base fuel specifications.
79.56 Fuel and fuel additive grouping system.
79.57 Emission generation.
79.58 Special provisions.
79.59 Reporting requirements.
79.60 Good laboratory practices (GLP) standards for inhalation exposure 
          health effects testing.
79.61 Vehicle emissions inhalation exposure guideline.
79.62 Subchronic toxicity study with specific health effect assessments.
79.63 Fertility assessment/teratology.
79.64 In vivo micronucleus assay.
79.65 In vivo sister chromatid exchange assay.
79.66 Neuropathology assessment.
79.67 Glial fibrillary acidic protein assay.
79.68 Salmonella typhimurium reverse mutation assay.

    Authority: 42 U.S.C. 7414, 7524, 7545 and 7601.

    Source: 40 FR 52011, Nov. 7, 1975, unless otherwise noted.



                      Subpart A_General Provisions



Sec.  79.1  Applicability.

    The regulations of this part apply to the registration of fuels and 
fuel additives designated by the Administrator, pursuant to section 211 
of the Clean Air Act (42 U.S.C. 1857f-6c, as amended by section 9, Pub. 
L. 91-604).



Sec.  79.2  Definitions.

    As used in this part, all terms not defined herein shall have the 
meaning given them in the Act:
    (a) Act means the Clean Air Act (42 U.S.C. 1857 et seq., as amended 
by Pub. L. 91-604).
    (b) Administrator means the Administrator of the Environmental 
Protection Agency.
    (c) Fuel means any material which is capable of releasing energy or 
power by combustion or other chemical or physical reaction.
    (d) Fuel manufacturer means any person who, for sale or introduction 
into commerce, produces, manufactures, or imports a fuel or causes or 
directs the alteration of the chemical composition of a bulk fuel, or 
the mixture of chemical compounds in a bulk fuel, by adding to it an 
additive, except:
    (1) A party (other than a fuel refiner or importer) who adds a 
quantity of additive(s) amounting to less than 1.0

[[Page 6]]

percent by volume of the resultant additive(s)/fuel mixture is not 
thereby considered a fuel manufacturer.
    (2) A party (other than a fuel refiner or importer) who adds an 
oxygenate compound to fuel in any otherwise allowable amount is not 
thereby considered a fuel manufacturer.
    (e) Additive means any substance, other than one composed solely of 
carbon and/or hydrogen, that is intentionally added to a fuel named in 
the designation (including any added to a motor vehicle's fuel system) 
and that is not intentionally removed prior to sale or use.
    (f) Additive manufacturer means any person who produces, 
manufactures, or imports an additive for use as an additive and/or sells 
or imports for sale such additive under the person's own name.
    (g) Range of concentration means the highest concentration, the 
lowest concentration, and the average concentration of an additive in a 
fuel.
    (h) Chemical composition means the name and percentage by weight of 
each compound in an additive and the name and percentage by weight of 
each element in an additive.
    (i) Chemical structure means the molecular structure of a compound 
in an additive.
    (j) Impurity means any chemical element present in an additive that 
is not included in the chemical formula or identified in the breakdown 
by element in the chemical composition of such additive.
    (k) Oxygenate compound means an oxygen-containing, ashless organic 
compound, such as an alcohol or ether, which may be used as a fuel or 
fuel additive.

[40 FR 52011, Nov. 7, 1975, as amended at 59 FR 33092, June 27, 1994; 62 
FR 12571, Mar. 17, 1997]



Sec.  79.3  Availability of information.

    The availability to the public of information provided to, or 
otherwise obtained by, the Administrator under this part shall be 
governed by part 2 of this chapter except as expressly noted in subpart 
F of this part.

[59 FR 33092, June 27, 1994]



Sec.  79.4  Requirement of registration.

    (a) Fuels. (1) No manufacturer of any fuel designated under this 
part shall, after the date prescribed for such fuel in this part, sell, 
offer for sale, or introduce into commerce such fuel unless the 
Administrator has registered such fuel.
    (2) No manufacturer of a registered fuel shall add or direct the 
addition to it of an additive which he has not previously reported 
unless he has notified the Administrator of such intended use, including 
the expected or estimated range of concentration. If necessary to meet 
an unforeseen production problem, however, a fuel manufacturer may use 
an additive that he has not previously reported provided that (i) the 
additive is on the current list of registered additives and (ii) the 
fuel manufacturer notifies the Administrator within 30 days regarding 
such unforeseen use and his plans regarding continued use, including the 
expected or estimated range of concentration.
    (3) Any designated fuel that is (i) in a research, development, or 
test status; (ii) sold to automobile, engine, or component manufacturers 
for research, development, or test purposes; or (iii) sold to automobile 
manufacturers for factory fill, and is not in any case offered for 
commercial sale to the public, shall be exempt from registration.
    (4) A domestic fuel manufacturer may purchase and offer for 
commercial sale foreign-produced fuel containing unidentified additives 
provided that within 30 days of his offer for sale he notifies the 
Administrator of the purchase, the source of purchase, the quantity 
purchased, and summarized results of any tests performed to determine 
the acceptability of the purchased fuel to the fuel manufacturer.
    (b) Additives. (1) No manufacturer of any fuel additive designated 
under this part shall, after the date by which the additive must be 
registered under this part, sell, offer for sale, or introduce into 
commerce such additive for use in any type of fuel designated under this 
part unless the Administrator has registered that additive for use in 
that type of fuel.
    (2) Any designated additive that is either (i) in a research, 
development, or test status or (ii) sold to petroleum,

[[Page 7]]

automobile, engine, or component manufacturers for research, 
development, or test purposes, and in either case is not offered for 
commercial sale to the public, shall be exempt from registration.
    (3) Process chemicals used by refineries during the refinery process 
are exempted from the requirement for registration.
    (4) If an additive manufacturer prepares for sale only to fuel 
manufacturers (i) a blend or mixture of two or more registered additives 
or (ii) a blend or mixture of one or more registered additives with one 
or more substances containing only carbon and/or hydrogen, he will not 
be required to register such blend or mixture provided he will, upon 
request, furnish the Administrator with the names and percentages by 
weight of all components of such blend or mixture.

[40 FR 52011, Nov. 7, 1975, as amended at 41 FR 21324, May 25, 1976; 59 
FR 33092, June 27, 1994]



Sec.  79.5  Periodic reporting requirements.

    (a) Fuel manufacturers. (1) For each calendar year (January 1 
through December 31) commencing after the date prescribed for any fuel 
in subpart D of this part, fuel manufacturers must submit to the 
Administrator a report for each registered fuel showing the range of 
concentration of each additive reported under Sec.  79.11(a) and the 
volume of such fuel produced in the year. Reports must be submitted by 
March 31 for the preceding year, or part thereof, on forms supplied by 
the Administrator. If the date prescribed for a particular fuel in 
subpart D of this part, or the later registration of a fuel is between 
October 1 and December 31, no report will be required for the period to 
the end of that year.

                              Table 1 to Sec.   79.5--Quarterly Reporting Deadlines
----------------------------------------------------------------------------------------------------------------
          Calendar quarter                   Time period covered                Quartely report deadline
----------------------------------------------------------------------------------------------------------------
Quarter 1...........................  January 1-March 31..............  June 1.
Quarter 2...........................  April 1-June 30.................  September 1.
Quarter 3...........................  July 1-September 30.............  December 1.
Quarter 4...........................  October 1-December 31...........  March 31.
----------------------------------------------------------------------------------------------------------------

    (2) Fuel manufacturers shall submit to the Administrator a report 
annually for each registered fuel providing additional data and 
information as specified in Sec. Sec.  79.32(c) and (d) and 79.33(c) and 
(d) in the designation of the fuel in subpart D of this part. Reports 
shall be submitted by March 31 for the preceding year, or part thereof, 
on forms supplied by the Administrator upon request. If the date 
prescribed for a particular fuel in subpart D of this part, or the later 
registration of a fuel is between October 1 and December 31, no report 
will be required for the period to the end of that year.
    (b) Additive manufacturers. Additive manufacturers shall submit to 
the Administrator a report annually for each registered additive 
providing additional data and information as specified in Sec.  79.31(c) 
and (d) in the designation of the additive in subpart D of this part. 
Additive manufacturers shall also report annually the volume of each 
additive produced. Reports shall be submitted by March 31 for the 
preceding year, or part thereof, on forms supplied by the Administrator 
upon request. If the date prescribed for a particular additive in 
subpart D of this part, or the later registration of an additive is 
between October 1 and December 31, no report will be required for the 
period to the end of that year. These periodic reports shall not, 
however, be required for any additive that is:
    (1) An additive registered under another name,
    (2) A blend or mixture of two or more registered additives, or
    (3) A blend or mixture of one or more registered additives with one 
or more

[[Page 8]]

substances containing only carbon and/or hydrogen.

[40 FR 52011, Nov. 7, 1975, as amended at 79 FR 23630, Apr. 28, 2014; 85 
FR 78463, Dec. 4, 2020]



Sec.  79.6  Requirement for testing.

    Provisions regarding testing that is required for registration of a 
designated fuel or fuel additive are contained in subpart F of this 
part.

[59 FR 33092, June 27, 1994]



Sec.  79.7  Samples for test purposes.

    When the Administrator requires for test purposes a fuel or additive 
which is not readily available in the open market, he may request the 
manufacturer of such fuel or additive to furnish a sample in a 
reasonable quantity. The fuel or additive manufacturer shall comply with 
such request within 30 days.



Sec.  79.8  Penalties.

    Any person who violates section 211(a) of the Act or who fails to 
furnish any information or conduct any tests required under this part 
shall be liable to the United States for a civil penalty of not more 
than the sum of $25,000 for every day of such violation and the amount 
of economic benefit or savings resulting from the violation. Civil 
penalties shall be assessed in accordance with paragraphs (b) and (c) of 
section 205 of the Act.

[58 FR 65554, Dec. 15, 1993]



                 Subpart B_Fuel Registration Procedures



Sec.  79.10  Application for registration by fuel manufacturer.

    Any manufacturer of a designated fuel who wishes to register that 
fuel shall submit an application for registration including all of the 
information set forth in Sec.  79.11. If the manufacturer produces more 
than one grade or brand of a designated fuel, a manufacturer may include 
more than one grade or brand in a single application, provided that the 
application includes all information required for registration of each 
such grade or brand by this part. Each application shall be signed by 
the fuel manufacturer and shall be submitted on such forms as the 
Administrator will supply on request.

[59 FR 33092, June 27, 1994]



Sec.  79.11  Information and assurances to be provided by the fuel
manufacturer.

    Each application for registration submitted by the manufacturer of a 
designated fuel shall include the following:
    (a) The commercial identifying name of each additive that will or 
may be used in a designated fuel subsequent to the date prescribed for 
such fuel in subpart D;
    (b) The name of the additive manufacturer of each additive named;
    (c) The range of concentration of each additive named, as follows:
    (1) In the case of an additive which has been or is being used in 
the designated fuel, the range during any 3-month or longer period prior 
to the date of submission;
    (2) In the case of an additive which has not been used in the 
designated fuel, the expected or estimated range;
    (d) The purpose-in-use of each additive named;
    (e) The description (or identification, in the case of a generally 
accepted method) of a suitable analytical technique (if one is known) 
that can be used to detect the presence of each named additive in the 
designated fuel and/or to measure its concentration therein;
    (f) Such other data and information as are specified in the 
designation of the fuel in subpart D;
    (g) Assurances that the fuel manufacturer will notify the 
Administrator in writing and within a reasonable time of any change in:
    (1) The name of any additive previously reported;
    (2) The name of the manufacturer of any additive being used;
    (3) The purpose-in-use of any additive;
    (4) Information submitted pursuant to paragraph (e) of this section;
    (h) Assurances that the fuel manufacturer will not represent, 
directly or indirectly, in any notice, circular, letter, or other 
written communication, or any written, oral, or pictorial notice or

[[Page 9]]

other announcement in any publication or by radio or television, that 
registration of the fuel constitutes endorsement, certification, or 
approval by any agency of the United States;
    (i) The manufacturer of any fuel which will be sold, offered for 
sale, or introduced into commerce for use in motor vehicles manufactured 
after model year 1974 shall demonstrate that the fuel is substantially 
similar to any fuel utilized in the certification of any 1975 or 
subsequent model year vehicle or engine, or that the manufacturer has 
obtained a waiver under 42 U.S.C. 7545(f)(4); and
    (j) The manufacturer shall submit, or shall reference prior 
submissions, including all of the test data and other information 
required prior to registration of the fuel by the provisions of subpart 
F of this part.

[40 FR 52011, Nov. 7, 1975, as amended at 59 FR 33092, June 27, 1994]



Sec.  79.12  Determination of noncompliance.

    If the Administrator determines that an applicant for registration 
of a designated fuel has failed to submit all of the information 
required by Sec.  79.11, or determines within the applicable period 
provided for Agency review that the applicant has not satisfactorily 
completed any testing which is required prior to registration of the 
fuel by any provision of subpart F of this part, he shall return the 
application to the manufacturer, along with an explanation of all 
deficiencies in the required information.

[59 FR 33093, June 27, 1994]



Sec.  79.13  Registration.

    (a) If the Administrator determines that a manufacturer has 
submitted an application for registration of a designated fuel which 
includes all of the information and assurances required by Sec.  79.11 
and has satisfactorily completed all of the testing required by subpart 
F of this part, the Administrator shall promptly register the fuel and 
notify the fuel manufacturer of such registration.
    (b) The Administrator shall maintain a list of registered fuels, 
which shall be available to the public upon request.

[40 FR 52011, Nov. 7, 1975, as amended at 41 FR 21324, May 25, 1976; 59 
FR 33093, June 27, 1994]



Sec.  79.14  Termination of registration of fuels.

    Registration may be terminated by the Administrator if the fuel 
manufacturer requests such termination in writing.



               Subpart C_Additive Registration Procedures



Sec.  79.20  Application for registration by additive manufacturer.

    Any manufacturer of a designated fuel additive who wishes to 
register that additive shall submit an application for registration 
including all of the information set forth in Sec.  79.21. Each 
application shall be signed by the fuel additive manufacturer and shall 
be submitted on such forms as the Administrator will supply on request.

[59 FR 33093, June 27, 1994]



Sec.  79.21  Information and assurances to be provided by the additive
manufacturer.

    Each application for registration submitted by the manufacturer of a 
designated fuel additive shall include the following:
    (a) The chemical composition of the additive with the methods of 
analysis identified, except that
    (1) If the chemical composition is not known, full disclosure of the 
chemical process of manufacture will be accepted in lieu thereof;
    (2) In the case of an additive for engine oil, only the name, 
percentage by weight, and method of analysis of each element in the 
additive are required provided, however, that a percentage figure 
combining the percentages of carbon, hydrogen, and/or oxygen may be 
provided unless the breakdown into percentages for these individual 
elements is already known to the registrant.
    (3) In the case of a purchased component, only the name, 
manufacturer,

[[Page 10]]

and percent by weight of such purchased component are required if the 
manufacturer of the component will, upon request, furnish the 
Administrator with the chemical composition thereof.
    (b) The chemical structure of each compound in the additive if such 
structure is known and is not adequately specified by the name given 
under ``chemical composition.'' Nominal identification is adequate if 
mixed isomers are present.
    (c) The description (or identification, in the case of a generally 
accepted method) of a suitable analytical technique (if one is known) 
that can be used to detect the presence of the additive in any fuel 
named in the designation and/or to measure its concentration therein.
    (d) The specific types of fuels designated under Sec.  79.32 for 
which the fuel additive will be sold, offered for sale, or introduced 
into commerce, and the fuel additive manufacturer's recommended range of 
concentration and purpose-in-use for each such type of fuel.
    (e) Such other data and information as are specified in the 
designation of the additive in subpart D.
    (f) Assurances that any change in information submitted pursuant to:
    (1) Paragraphs (a), (b), (c), (d), and (j) of this section will be 
provided to the Administrator in writing within 30 days of such change; 
and
    (2) Paragraph (e) of this section as provided in Sec.  79.5(b).
    (g)(1) Assurances that the additive manufacturer will not represent, 
directly or indirectly, in any notice, circular, letter, or other 
written communication or any written, oral, or pictorial notice or other 
announcement in any publication or by radio or television, that 
registration of the additive constitutes endorsement, certification, or 
approval by any agency of the United States, except as specified in 
paragraph (g)(2) of this section.
    (2) In the case of an additive that has its purpose-in-use 
identified as a deposit control additive for use in gasoline pursuant to 
the requirements of paragraph (d) of this section, the additive 
manufacturer may publicly represent that the additive meets the EPA's 
gasoline deposit control requirements, provided that the additive 
manufacturer is in compliance with the requirements of 40 CFR 1090.260.
    (h) The manufacturer of any fuel additive which will be sold, 
offered for sale, or introduced into commerce for use in any type of 
fuel intended for use in motor vehicles manufactured after model year 
1974 shall demonstrate that the fuel additive, when used at the 
recommended range of concentration, is substantially similar to any fuel 
additive included in a fuel utilized in the certification of any 1975 or 
subsequent model year vehicle or engine, or that the manufacturer has 
obtained a waiver under 42 U.S.C. 7545(f)(4).
    (i) The manufacturer shall submit, or shall reference prior 
submissions, including all of the test data and other information 
required prior to registration of the fuel additive by the provisions of 
subpart F of this part.
    (j) If the purpose-in-use of the additive identified pursuant to the 
requirements of paragraph (d) of this section is a deposit control 
additive for use in gasoline, the manufacturer must submit the following 
in addition to the other information specified in this section:
    (1) The lowest additive concentration (LAC) that is compliant with 
the gasoline deposit control requirements of 40 CFR 1090.260.
    (2) The deposit control test method in 40 CFR 1090.1395 that the 
additive is compliant with.
    (3) A complete listing of the additive's components and the weight 
or volume percent (as applicable) of each component.
    (i) Nomenclature. When possible, standard chemical nomenclature must 
be used or the chemical structure of the component must be given. 
Polymeric components may be reported as the product of other chemical 
reactants, provided that the supporting data specified in paragraph 
(j)(3) of this section is also reported.
    (ii) Designation. Each detergent-active component of the package 
must be classified into one of the following designations:
    (A) Polyalkyl amine.
    (B) Polyether amine.
    (C) Polyalkylsuccinimide.
    (D) Polyalkylaminophenol.

[[Page 11]]

    (E) Detergent-active petroleum-based carrier oil.
    (F) Detergent-active synthetic carrier oil.
    (G) Other detergent-active component (identify category, if 
feasible).
    (iii) Composition variability. (A) The composition of a detergent 
additive reported in a single additive registration (and the detergent 
additive product sold under a single additive registration) may not 
include the following:
    (1) Detergent-active components that differ in identity from those 
contained in the detergent additive package at the time of deposit 
control testing.
    (2) A range of concentrations for any detergent-active component 
such that, if the component were present in the detergent additive 
package at the lower bound of the reported range, the deposit control 
effectiveness of the additive package would be reduced as compared with 
the level of effectiveness demonstrated pursuant to the requirements of 
40 CFR 1090.260. Subject to the foregoing constraint, a gasoline 
detergent additive sold under a particular additive registration may 
contain a higher concentration of the detergent-active component(s) than 
the concentration(s) of such component(s) reported in the registration 
for the additive.
    (B) The identity or concentration of non-detergent-active components 
of the detergent additive package may vary under a single registration 
provided that such variability does not reduce the deposit control 
effectiveness of the additive package as compared with the level of 
effectiveness demonstrated pursuant to the requirements of 40 CFR 
1090.260.
    (C) Unless the additive manufacturer provides EPA with data to 
substantiate that a carrier oil does not act to enhance the detergent 
additive's ability to control deposits, any carrier oil contained in the 
detergent additive, whether petroleum-based or synthetic, must be 
treated as a detergent-active component in accordance with the 
requirements in paragraph (j)(3)(ii) of this section.
    (D) Except as provided in paragraph (j)(3)(iii)(E) of this section, 
detergent additive packages that do not satisfy the requirements in 
paragraphs (j)(3)(iii)(A) through (C) must be separately registered. EPA 
may disqualify an additive for use in satisfying the requirements of 
this subpart if EPA determines that the variability included within a 
given detergent additive registration may reduce the deposit control 
effectiveness of the detergent package such that it may invalidate the 
lowest additive concentration reported in accordance with the 
requirements of paragraph (j)(1) of this section and 40 CFR 1090.260.
    (E) A change in minimum concentration requirements resulting from a 
modification of detergent additive composition does not require a new 
detergent additive registration or a change in existing registration if 
the modification is affected by a detergent blender pursuant to the 
requirements of 40 CFR 1090.1240.
    (4) For detergent-active polymers and detergent-active carrier oils 
that are reported as the product of other chemical reactants:
    (i) Identification of the reactant materials and the manufacturer's 
acceptance criteria for determining that these materials are suitable 
for use in synthesizing detergent components. The manufacturer must 
maintain documentation, and submit it to EPA upon request, demonstrating 
that the acceptance criteria reported to EPA are the same criteria which 
the manufacturer specifies to the suppliers of the reactant materials.
    (ii) A Gel Permeation Chromatograph (GPC), providing the molecular 
weight distribution of the polymer or detergent-active carrier oil 
components and the concentration of each chromatographic peak 
representing more than one percent of the total mass. For these results 
to be acceptable, the GPC test procedure must include equipment 
calibration with a polystyrene standard or other readily attainable and 
generally accepted calibration standard. The identity of the calibration 
standard must be provided, together with the GPC characterization of the 
standard.
    (5) For non-detergent-active carrier oils, the following parameters:
    (i) T10, T50, and T90 distillation points, and end boiling point, 
measured

[[Page 12]]

according to applicable test procedures cited in 40 CFR 1090.1350.
    (ii) API gravity and viscosity.
    (iii) Concentration of oxygen, sulfur, and nitrogen, if greater than 
or equal to 0.5 percent (by weight) of the carrier oil.
    (6) Description of an FTIR-based method appropriate for identifying 
the detergent additive package and its detergent-active components 
(polymers, carrier oils, and others) both qualitatively and 
quantitatively, together with the actual infrared spectra of the 
detergent additive package and each detergent-active component obtained 
by this test method. The FTIR infrared spectra submitted in connection 
with the registration of a detergent additive package must reflect the 
results of a test conducted on a sample of the additive containing the 
detergent-active component(s) at a concentration no lower than the 
concentration(s) (or the lower bound of a range of concentration) 
reported in the registration pursuant to paragraph (j)(1) of this 
section.
    (7) Specific physical parameters must be identified which the 
manufacturer considers adequate and appropriate, in combination with 
other information in this section, for identifying the detergent 
additive package and monitoring its production quality control.
    (i) Such parameters must include (but need not be limited to) 
viscosity, density, and basic nitrogen content, unless the additive 
manufacturer specifically requests, and EPA approves, the substitution 
of other parameter(s) which the manufacturer considers to be more 
appropriate for a particular additive package. The request must be made 
in writing and must include an explanation of how the requested physical 
parameter(s) are helpful as indicator(s) of detergent production quality 
control. EPA will respond to such requests in writing; the additional 
parameters are not approved until the manufacturer receives EPA's 
written approval.
    (ii) The manufacturer must identify a standardized measurement 
method, consistent with the chemical and physical nature of the 
detergent product, which will be used to measure each parameter. The 
documented ASTM repeatability for the method must also be cited. The 
manufacturer's target value for each parameter in the additive, and the 
expected range of production values for each parameter, must be 
specified.
    (iii) The expected range of variability must differ from the target 
value by an amount no greater than five times the standard repeatability 
of the test procedure, or by no more than 10 percent of the target 
value, whichever is less. However, in the case of nitrogen analysis or 
other procedures for measuring concentrations of specific chemical 
compounds or elements, when the target value is less than 10 parts per 
million, a range of variability up to 50 percent of the target value 
will be considered acceptable.
    (iv) If a manufacturer wishes to rely on measurement methods or 
production variability ranges which do not conform to the above 
limitations, then the manufacturer must receive prior written approval 
from EPA. A request for such allowance must be made in writing. It must 
fully justify the adequacy of the test procedure, explain why a broader 
range of variability is required, and provide evidence that the 
production detergent will perform adequately throughout the requested 
range of variability pursuant to the requirements of 40 CFR 1090.1395.

[40 FR 52011, Nov. 7, 1975, as amended at 41 FR 21324, May 25, 1976; 59 
FR 33093, June 27, 1994; 85 FR 78463, Dec. 4, 2020]



Sec.  79.22  Determination of noncompliance.

    If the Administrator determines that an applicant for registration 
of a designated fuel additive has failed to submit all of the 
information required by Sec.  79.21, or determines within the applicable 
period provided for Agency review that the applicant has not 
satisfactorily completed any testing which is required prior to 
registration of the fuel additive by any provision of subpart F of this 
part, he shall return the application to the manufacturer, along with an 
explanation of all deficiencies in the required information.

[59 FR 33093, June 27, 1994]

[[Page 13]]



Sec.  79.23  Registration.

    (a) If the Administrator determines that a manufacturer has 
submitted an application for registration of a designated fuel additive 
which includes all of the information and assurances required by Sec.  
79.21 and has satisfactorily completed all of the testing required by 
subpart F of this part, the Administrator shall promptly register the 
fuel additive and notify the fuel manufacturer of such registration.
    (b) The Administrator shall maintain a list of registered additives, 
which shall be available to the public upon request.

[40 FR 52011, Nov. 7, 1975, as amended at 41 FR 21324, May 25, 1976; 59 
FR 33093, June 27, 1994]



Sec.  79.24  Termination of registration of additives.

    (a) Registration may be terminated by the Administrator if the 
additive manufacturer requests such termination in writing.
    (b) Registration for an additive that has its purpose-in-use 
identified as a deposit control additive for use in gasoline pursuant to 
the requirements of Sec.  79.21(d) may be terminated by the 
Administrator if the EPA determines that the detergent additive is not 
compliant with the gasoline deposit control requirements of 40 CFR 
1090.260.

[85 FR 78465, Dec. 4, 2020]



              Subpart D_Designation of Fuels and Additives



Sec.  79.30  Scope.

    Fuels and additives designated and dates prescribed by the 
Administrator for the registration of such fuels and additives, pursuant 
to section 211 of the Act, are listed in this subpart. In addition, 
specific informational requirements under Sec. Sec.  79.11(f) and 
79.21(e) are set forth for each designated fuel or additive. Additional 
fuels and/or additives may be designated and pertinent dates and 
additional specific informational requirements prescribed as the 
Administrator deems advisable.



Sec.  79.31  Additives.

    (a) All additives produced or sold for use in motor vehicle gasoline 
and/or motor vehicle diesel fuel are hereby designated. The Act defines 
the term ``motor vehicle'' to mean any self-propelled vehicle designed 
for transporting persons or property on a street or highway. For 
purposes of this registration, however, additives specifically 
manufactured and marketed for use in motorcycle fuels are excluded.
    (b) All designated additives must be registered by July 7, 1976.
    (c) In accordance with Sec. Sec.  79.5(b) and 79.21(e), and to the 
extent such information is known to the additive manufacturer as a 
result of testing conducted for reasons other than additive registration 
or reporting purposes, the additive manufacturer shall furnish the 
highest, lowest, and average values of the impurities in each designated 
additive, if greater than 0.1 percent by weight. The methods of analysis 
in making the determinations shall also be given.
    (d) In accordance with Sec. Sec.  79.5(b) and 79.21(e), and to the 
extent such information is known to the additive manufacturer, he shall 
furnish summaries of any information developed by or specifically for 
him concerning the following items:
    (1) Mechanisms of action of the additive;
    (2) Reactions between the additive and the fuels listed in paragraph 
(a) of this section;
    (3) Identification and measurement of the emission products of the 
additive when used in the fuels listed in paragraph (a) of this section;
    (4) Effects of the additive on all emissions;
    (5) Toxicity and any other public health or welfare effects of the 
emission products of the additive;
    (6) Effects of the emission products of the additive on the 
performance of emission control devices/systems. Such submissions shall 
be accompanied by a description of the test procedures used in obtaining 
the information. Information will be considered to be known to the 
additive manufacturer if a report

[[Page 14]]

thereon has been prepared and circulated or distributed outside the 
research department or division.

(Secs. 211, 301(a), Clean Air Act as amended (40 U.S.C. 7545, 7601(a)))

[40 FR 52011, Nov. 7, 1975, as amended at 41 FR 21324, May 25, 1976; 43 
FR 28490, June 30, 1978; 59 FR 33093, June 27, 1994]



Sec.  79.32  Motor vehicle gasoline.

    (a) The following fuels commonly or commercially known or sold as 
motor vehicle gasoline are hereby individually designated:
    (1) Motor vehicle gasoline, unleaded--motor vehicle gasoline that 
contains no more than 0.05 gram of lead per gallon;
    (2) Motor vehicle gasoline, leaded, premium--motor vehicle gasoline 
that contains more than 0.05 gram of lead per gallon and is sold as 
``premium;''
    (3) Motor vehicle gasoline, leaded, non-premium--motor vehicle 
gasoline that contains more than 0.05 gram of lead per gallon but is not 
sold as ``premium.''

The Act defines the term ``motor vehicle'' to mean any self-propelled 
vehicle designed for transporting persons or property on a street or 
highway. For purposes of this registration, however, gasoline 
specifically blended and marketed for motorcycles is excluded.
    (b) All designated motor vehicle gasolines must be registered by 
September 7, 1976.
    (c) Fuel manufacturers must submit the reports specified in 40 CFR 
part 1090, subpart J.
    (d) In accordance with Sec. Sec.  79.5(a)(2) and 79.11(f), and to 
the extent such information is known to the fuel manufacturer, he shall 
furnish summaries of any information developed by or specifically for 
him concerning the following items:
    (1) Mechanisms of action of each additive he reports;
    (2) Reactions between such additives and motor vehicle gasoline;
    (3) Identification and measurement of the emission products of such 
additives when used in motor vehicle gasoline;
    (4) Effects of such additives on all emissions;
    (5) Toxicity and any other public health or welfare effects of the 
emission products of such additives;
    (6) Effects of the emission products of such additives on the 
performance of emission control devices/systems. Such submissions shall 
be accompanied by a description of the test procedures used in obtaining 
the information. Information will be considered to be known to the fuel 
manufacturer if a report thereon has been prepared and circulated or 
distributed outside the research department or division.

[40 FR 52011, Nov. 7, 1975, as amended at 41 FR 21324, May 25, 1976; 85 
FR 78465, Dec. 4, 2020]



Sec.  79.33  Motor vehicle diesel fuel.

    (a) The following fuels commonly or commercially known or sold as 
motor vehicle diesel fuel are hereby individually designated:
    (1) Motor vehicle diesel fuel, grade 1-D;
    (2) Motor vehicle diesel fuel, grade 2-D.

The Act defines the term ``motor vehicle'' to mean any self-propelled 
vehicle designed for transporting persons or property on a street or 
highway.
    (b) All designated motor vehicle diesel fuels must be registered 
within 12 months after promulgation of this part.
    (c) Fuel manufacturers must submit the reports specified in 40 CFR 
part 1090, subpart J.
    (d) In accordance with Sec. Sec.  79.5(a)(2) and 79.11(f), and to 
the extent such information is known to the fuel manufacturer, he shall 
furnish summaries of any information developed by or specifically for 
him concerning the following items:
    (1) Mechanisms of action of each additive he reports;
    (2) Reactions between such additives and motor vehicle diesel fuel;
    (3) Identification and measurement of the emission products of such 
additives when used in motor vehicle diesel fuel;
    (4) Effects of such additives on all emissions;
    (5) Toxicity and any other public health or welfare effects of the 
emission products of such additives.

[[Page 15]]


Such submission shall be accompanied by a description of the test 
procedures used in obtaining the information. Information will be 
considered to be known to the fuel manufacturer if a report thereon has 
been prepared and circulated or distributed outside the research 
department or division.

[40 FR 52011, Nov. 7, 1975, as amended at 85 FR 78465, Dec. 4, 2020]

Subpart E [Reserved]



             Subpart F_Testing Requirements for Registration

    Source: 59 FR 33093, June 27, 1994, unless otherwise noted.



Sec.  79.50  Definitions.

    The definitions listed in this section apply only to subpart F of 
this part.
    Additive/base fuel mixture means the mixture resulting when a fuel 
additive is added in specified proportion to the base fuel of the fuel 
family to which the additive belongs.
    Aerosol additive means a chemical mixture in aerosol form generally 
used as a motor vehicle engine starting aid or carburetor cleaner and 
not recommended to be placed in the fuel tank.
    Aftermarket fuel additive means a product which is added by the end-
user directly to fuel in a motor vehicle or engine to modify the 
performance or other characteristics of the fuel, the engine, or its 
emissions.
    Atypical element means any chemical element found in a fuel or 
additive product which is not allowed in the baseline category of the 
associated fuel family, and an ``atypical fuel or fuel additive'' is a 
product which contains such an atypical element.
    Base fuel means a generic fuel formulated from a set of 
specifications to be representative of a particular fuel family.
    Basic emissions means the total hydrocarbons, carbon monoxide, 
oxides of nitrogen, and particulates occurring in motor vehicle or 
engine emissions.
    Bulk fuel additive means a product which is added to fuel at the 
refinery as part of the original blending stream or after the fuel is 
transported from the refinery but before the fuel is purchased for 
introduction into the fuel tank of a motor vehicle.
    Emission characterization means the determination of the chemical 
composition of emissions.
    Emission generation means the operation of a vehicle or engine or 
the vaporization of a fuel or additive/fuel mixture under controlled 
conditions for the purpose of creating emissions to be used for testing 
purposes.
    Emission sampling means the removal of a fraction of collected 
emissions for testing purposes.
    Emission speciation means the analysis of vehicle or engine 
emissions to determine the individual chemical compounds which comprise 
those emissions.
    Engine Dynamometer Schedule (EDS) means the transient engine speed 
versus torque time sequence commonly used in heavy-duty engine 
evaluation. The EDS for heavy-duty diesel engines is specified in 40 CFR 
part 86, appendix I(f)(2).
    Evaporative Emission Generator (EEG) means a fuel tank or vessel to 
which heat is applied to cause a portion of the fuel to evaporate at a 
desired rate.
    Evaporative emissions means chemical compounds emitted into the 
atmosphere by vaporization of contents of a fuel or additive/fuel 
mixture.
    Evaporative fuel means a fuel which has a Reid Vapor Pressure (RVP, 
pursuant to 40 CFR part 80, appendix ``E'') of 2.0 pounds per square 
inch or greater and is not supplied to motor vehicle engines by way of 
sealed containment and delivery systems.
    Evaporative fuel additive means a fuel additive which, when mixed 
with its specified base fuel, causes an increase in the RVP of the base 
fuel by 0.4 psi or more relative to the RVP of the base fuel alone and 
results in an additive/base fuel mixture whose RVP is 2.0 psi, or 
greater. Excluded from this definition are fuel additives used with 
fuels which are supplied to motor vehicle engines by way of sealed 
containment and delivery systems.
    Federal Test Procedure (FTP) means the body of exhaust and 
evaporative emissions test procedures described in 40 CFR 86 for the 
certification of new

[[Page 16]]

motor vehicles to Federal motor vehicle emissions standards.
    Fuel family means a set of fuels and fuel additives which share 
basic chemical and physical formulation characteristics and can be used 
in the same engine or vehicle.
    Manufacturer means a person who is a fuel manufacturer or additive 
manufacturer as defined in Sec.  79.2 (d) and (f).
    Nitrated polycyclic aromatic hydrocarbons (NPAH) means the class of 
compounds whose molecular structure includes two or more aromatic rings 
and contains one or more nitrogen substitutions.
    Non-catalyzed emissions means exhaust emissions not subject to an 
effective aftertreatment device such as a functional catalyst or 
particulate trap.
    Oxygenate compound means an oxygen-containing, ashless organic 
compound, such as an alcohol or ether, which may be used as a fuel or 
fuel additive.
    Polycyclic aromatic hydrocarbons (PAH) means the class of 
hydrocarbon compounds whose molecular structure includes two or more 
aromatic rings.
    Relabeled additive means a fuel additive which is registered by its 
original manufacturer with EPA and is also registered and sold, 
unchanged in composition, under a different label and/or by a different 
entity.
    Semi-volatile organic compounds means that fraction of gaseous 
combustion emissions which consists of compounds with greater than 
twelve carbon atoms and can be trapped in sorbent polymer resins.
    Urban Dynamometer Driving Schedule (UDDS) means the 1372 second 
transient speed driving sequence used by EPA to simulate typical urban 
driving. The UDDS for light-duty vehicles is described in 40 CFR part 
86, appendix I(a).
    Vapor phase means the gaseous fraction of combustion emissions.
    Vehicle classes/subclasses means the divisions of vehicle groups 
within a vehicle type, including light-duty vehicles, light-duty trucks, 
and heavy-duty vehicles as specified in 40 CFR part 86.
    Vehicle type means the divisions of motor vehicles according to 
combustion cycle and intended fuel class, including, but not necessarily 
limited to, Otto cycle gasoline-fueled vehicles, Otto cycle methanol-
fueled vehicles, diesel cycle diesel-fueled vehicles, and diesel cycle 
methanol-fueled vehicles.
    Whole emissions means all components of unfiltered combustion 
emissions or evaporative emissions.



Sec.  79.51  General requirements and provisions.

    (a) Overview of requirements. (1) All manufacturers of fuels and 
fuel additives that are designated for registration under this part are 
required to comply with the requirements of subpart F of this part 
either on an individual basis or as a participant in a group of 
manufacturers of the same or similar fuels and fuel additives, as 
defined in Sec.  79.56. If manufacturers elect to comply by 
participation in a group, each manufacturer continues to be individually 
subject to the requirements of subpart F of this part, and responsible 
for testing under this subpart. Each manufacturer, subject to the 
provisions for group applications in Sec.  79.51(b) and the special 
provisions in Sec.  79.58, shall submit all Tier 1 and Tier 2 
information required by Sec. Sec.  79.52, 79.53 and 79.59 for each fuel 
or additive, except that the Tier 1 emission characterization 
requirements in Sec.  79.52(b) and/or the Tier 2 testing requirements in 
Sec.  79.53 may be satisfied by adequate existing information pursuant 
to the Tier 1 literature search requirements in Sec.  79.52(d). The 
adequacy of existing information to serve in compliance with specific 
Tier 1 and/or Tier 2 requirements shall be determined according to the 
criteria and procedures specified in Sec. Sec.  79.52(b) and 79.53 (c) 
and (d). In all cases, EPA reserves the right to require, based upon the 
information contained in the application or any other information 
available to the Agency, that manufacturers conduct additional testing 
of any fuel or additive (or fuel/additive group) if EPA determines that 
there is inadequate information upon which to base regulatory decisions 
for such product(s). In any case where EPA determines that the 
requirements of Tiers 1 and 2 have been satisfied but that further 
testing is required, the provisions of Tier 3 (Sec.  79.54) shall apply.
    (2) Laboratory facilities shall perform testing in compliance with 
Good

[[Page 17]]

Laboratory Practice (GLP) requirements as those requirements apply to 
inhalation toxicology studies. All studies shall be monitored by the 
facilities' Quality Assurance units (as specified in Sec.  79.60).
    (b) Group Applications. Subject to the provisions of Sec.  79.56 (a) 
through (c), EPA will consider any testing requirements of this subpart 
to have been met for any fuel or fuel additive when a fuel or fuel 
additive which meets the criteria for inclusion in the same group as the 
subject fuel or fuel additive has met that testing requirement, provided 
that all fuels and additives must be individually registered as 
described in Sec.  79.59(b). For purposes of this subpart, a 
determination of which group contains a particular fuel or additive will 
be made pursuant to the provisions of Sec.  79.56 (d) and (e). Nothing 
in this subsection (b) shall be deemed to require a manufacturer to rely 
on another manufacturer's testing.
    (c) Application Procedures and Dates. Each application submitted in 
compliance with this subpart shall be signed by the manufacturer of the 
designated fuel or additive, or by the manufacturer's agent, and shall 
be submitted to the address and in the format prescribed in Sec.  79.59. 
A manufacturer who chooses to comply as part of a group pursuant to 
Sec.  79.56 shall be covered by the group's joint application. Subject 
to any modifications pursuant to the special provisions in Sec. Sec.  
79.51(f) or 79.58, the schedule for compliance with the requirements of 
this subpart is as follows:
    (1) Fuels and fuel additives with existing registrations. (i) The 
manufacturer of a fuel or fuel additive product which, pursuant to 
subpart B or C of this part, is registered as of May 27, 1994 must 
submit the additional basic registration data specified in Sec.  
79.59(b) before November 28, 1994.
    (ii) Except as provided in paragraphs (c)(1)(vi) and (vii) of this 
section, the manufacturer of such products must also satisfy the 
requirements and time schedules in either of the following paragraphs 
(c)(1)(ii) (A) or (B) of this section:
    (A) No later than May 27, 1997, all applicable Tier 1 and Tier 2 
requirements must be submitted to EPA, pursuant to Sec. Sec.  79.52, 
79.53, and 79.59; or
    (B) No later than May 27, 1997, all applicable Tier 1 requirements 
(pursuant to Sec. Sec.  79.52 and 79.59), plus evidence of a contract 
with a qualified laboratory (or other suitable arrangement) for 
completion of all applicable Tier 2 requirements, must be submitted to 
EPA. For this purpose, a qualified laboratory is one which can 
demonstrate the capabilities and credentials specified in Sec.  
79.53(c)(1). In addition, by May 26, 2000, all applicable Tier 2 
requirements (pursuant to Sec. Sec.  79.53 and 79.59) must be submitted 
to EPA.
    (iii) In the case of such fuels and fuel additives which, pursuant 
to applicable special provisions in Sec.  79.58, are not subject to Tier 
2 requirements, all other requirements (except Tier 3) must be submitted 
to EPA before May 27, 1997.
    (iv) In the event that Tier 3 testing is also required (under Sec.  
79.54), EPA shall determine an appropriate timeline for completion of 
the additional requirements and shall communicate this schedule to the 
manufacturer according to the provisions of Sec.  79.54(b).
    (v) The manufacturer may at any time modify an existing fuel 
registration by submitting a request to EPA to add or delete a bulk 
additive to the existing registration information for such fuel product, 
provided that any additional additive must be registered by EPA for use 
in the specific fuel family to which the fuel product belongs. However, 
the addition or deletion of a bulk additive to a fuel registration may 
effect the grouping of such registered fuel under the criteria of Sec.  
79.56, and thus may effect the testing responsibilities of the fuel 
manufacturer under this subpart.
    (vi) In regard to atypical fuels or additives in the gasoline and 
diesel fuel families (pursuant to the specifications in Sec.  
79.56(e)(4)(iii)(A) (1) and (2)):
    (A) All applicable Tier 1 requirements, pursuant to Sec. Sec.  79.52 
and 79.59, must be submitted to EPA by May 27, 1997.
    (B) Tier 2 requirements, pursuant to Sec. Sec.  79.53 and 79.59, 
must be satisfied according to the deadlines in either of the following 
paragraphs (c)(1)(vi)(B) (1) or (2) of this section:

[[Page 18]]

    (1) All applicable Tier 2 requirements shall be submitted to EPA by 
November 27, 1998; or
    (2) Evidence of a contract with a qualified laboratory (or other 
suitable arrangement) for completion of all applicable Tier 2 
requirements shall be submitted to EPA by November 27, 1998. For this 
purpose, a qualified laboratory is one which can demonstrate the 
capabilities and credentials specified in Sec.  79.53(c)(1). In 
addition, all applicable Tier 2 requirements must be submitted to EPA by 
November 27, 2001.
    (vii) In regard to nonbaseline diesel products formulated with mixed 
alkyl esters of plant and/or animal origin (i.e., ``biodiesel'' fuels, 
pursuant to Sec.  79.56(e)(4)(ii)(B)(2)):
    (A) All applicable Tier 1 requirements, pursuant to Sec. Sec.  79.52 
and 79.59, must be submitted to EPA by March 17, 1998.
    (B) Tier 2 requirements, pursuant to Sec. Sec.  79.53 and 79.59, 
must be satisfied according to the deadlines in either of the following 
paragraphs (c)(1)(vii)(B) (1) or (2) of this section:
    (1) All applicable Tier 2 requirements shall be submitted to EPA by 
March 17, 1998; or
    (2) Evidence of a contract with a qualified laboratory (or other 
suitable arrangement) for completion of all applicable Tier 2 
requirements shall be submitted to EPA by March 17, 1998. For this 
purpose, a qualified laboratory is one which can demonstrate the 
capabilities and credentials specified in Sec.  79.53(c)(1). In 
addition, all applicable Tier 2 requirements must be submitted to EPA by 
May 27, 2000.
    (2) Registrable fuels and fuel additives. (i) A fuel product which 
is not registered pursuant to subpart B of this part as of May 27, 1994 
shall be considered registrable if, under the criteria established by 
Sec.  79.56, the fuel can be enrolled in the same fuel/additive group 
with one or more currently registered fuels. A fuel additive product 
which is not registered for a specific type of fuel pursuant to subpart 
C of this part as of May 27, 1994 shall be considered registrable for 
that type of fuel if, under the criteria established by Sec.  79.56, the 
fuel/additive mixture resulting from use of the additive product in the 
specific type of fuel can be enrolled in the same fuel/additive group 
with one or more currently registered fuels or bulk fuel additives. For 
the purpose of this determination, currently registered fuels and bulk 
additives are those with existing registrations as of the date on which 
EPA receives the basic registration data (pursuant to Sec.  79.59(b)) 
for the product in question.
    (ii) A manufacturer seeking to register under subpart B of this part 
a fuel product which is deemed registrable under this section, or to 
register under subpart C of this part a fuel additive product for a 
specific type of fuel for which it is deemed registrable under this 
section, shall submit the basic registration data (pursuant to Sec.  
79.59(b)) for that product as part of the application for registration. 
If the Administrator determines that the product is registrable under 
this section, then the Administrator shall promptly register the 
product, provided that the applicant has satisfied all of the other 
requirements for registration under subpart B or subpart C of this part, 
and contingent upon satisfactory submission of required information 
under paragraph (c)(2)(iii) of this section.
    (iii) Registration of a registrable fuel or additive shall be 
subject to the same requirements and compliance schedule as specified in 
paragraph (c)(1) of this section for existing fuels and fuel additives. 
Accordingly, manufacturers of registrable fuels or additives may be 
granted and may retain registration for such products only if any 
applicable and due Tier 1, 2, and 3 requirements have also been 
satisfied by either the manufacturer of the product or the fuel/additive 
group to which the product belongs.
    (3) New fuels and fuel additives. A fuel product shall be considered 
new if it is not registered pursuant to subpart B of this part as of May 
27, 1994 and if, under the criteria established by Sec.  79.56, it 
cannot be enrolled in the same fuel/additive group with one or more 
currently registered fuels. A fuel additive product shall be considered 
new with respect to a specific type of fuel if it is not expressly 
registered for that type of fuel pursuant to subpart C of this part as 
of May 27, 1994 and if, under the criteria established by Sec.  79.56, 
the fuel/

[[Page 19]]

additive mixture resulting from use of the additive product in the 
specific type of fuel cannot be enrolled in the same fuel/additive group 
with one or more currently registered fuels or bulk fuel additives. For 
the purpose of this determination, currently registered fuels and bulk 
additives are those with existing registrations as of the date on which 
EPA receives the basic registration data (pursuant to Sec.  79.59(b)) 
for the product in question. For such new product, the manufacturer must 
satisfactorily complete all applicable Tier 1 and Tier 2 requirements, 
followed by any Tier 3 testing which the Administrator may require, 
before registration will be granted.
    (d) Notifications. Upon receipt of a manufacturer's (or group's) 
submittal in compliance with the requirements of this subpart, EPA will 
notify such manufacturer (or group) that the application has been 
received and what, if any, information, testing, or retesting is 
necessary to bring the application into compliance with the requirements 
of this subpart. EPA intends to provide such notification of receipt in 
a timely manner for each such application.
    (1) Registered fuel and fuel additive notification. (i) The 
manufacturer of a registered fuel or fuel additive product who is 
notified that the submittal for such product contains adequate 
information pursuant to the Tier 1 and Tier 2 testing and reporting 
requirements (Sec. Sec.  79.52, 79.53, and 79.59 (a) through (c)) may 
continue to sell, offer for sale, or introduce into commerce the 
registered product as permitted by the existing registration for the 
product under Sec.  79.4.
    (ii) If the manufacturer of a registered fuel or fuel additive 
product is notified that testing or retesting is necessary to bring the 
Tier 1 and/or Tier 2 submittal into compliance, the continued sale or 
importation of the product shall be conditional upon satisfactorily 
completing the requirements within the time frame specified in paragraph 
(c)(1) of this section.
    (iii) EPA intends to notify the manufacturer of the adequacy of the 
submitted data within two years of EPA's receipt of such data. However, 
EPA retains the right to require that adequate data be submitted to EPA 
if, upon subsequent review, EPA finds that the original Tier 1 and/or 
Tier 2 submittal is not consistent with the requirements of this 
subpart. If EPA does not notify the manufacturer of the adequacy of the 
Tier 1 and/or Tier 2 data within two years, EPA will not hold the 
manufacturer liable for penalties for violating this rule for the period 
beginning when the data was due until the time EPA notifies the 
manufacturer of the violation.
    (iv) If the manufacturer of a registered fuel or fuel additive 
product is notified (pursuant to Sec.  79.54(b)) that Tier 3 testing is 
required for its product, then the manufacturer may continue to sell, 
offer for sale, introduce into commerce the registered product as 
permitted by the existing registration for the product under Sec.  79.4. 
However, if the manufacturer fails to complete the specified Tier 3 
requirements within the specified time, the registration of the product 
will be subject to cancellation under Sec.  79.51(f)(6).
    (v) EPA retains the right to require additional Tier 3 testing 
pursuant to the procedures in Sec.  79.54.
    (2) New fuel and fuel additive notification. (i) Within six months 
following its receipt of the Tier 1 and Tier 2 submittal for a new 
product (as defined in paragraph (c)(3) of this section), EPA shall 
notify the manufacturer of the adequacy of such submittal in compliance 
with the requirements of Sec. Sec.  79.52, 79.53, and 79.59 (a) through 
(c).
    (A) If EPA notifies the manufacturer that testing, retesting, or 
additional information is necessary to bring the Tier 1 and Tier 2 
submittal into compliance, the manufacturer shall remedy all 
inadequacies and provide Tier 3 data, if required, before EPA shall 
consider the requirements for registration to have been met for the 
product in question.
    (B) If EPA does not notify the manufacturer of the adequacy of the 
Tier 1 and Tier 2 submittal within six months following the submittal, 
the manufacturer shall be deemed to have satisfactorily completed Tiers 
1 and 2.
    (ii) Within six months of the date on which EPA notifies the 
manufacturer of satisfactory completion of Tiers 1 and 2 for a new 
product, or within one year of the submittal of the Tier 1 and

[[Page 20]]

Tier 2 data (whichever is earlier), EPA shall determine whether 
additional testing is currently needed under the provisions of Tier 3 
and, pursuant to Sec.  79.54(b), shall notify the manufacturer of its 
determination.
    (A) If the manufacturer of a new fuel or fuel additive product is 
notified that Tier 3 testing is required for such product, then EPA 
shall have the authority to withhold registration until the specified 
Tier 3 requirements have been satisfactorily completed. EPA shall 
determine whether the Tier 3 requirements have been met, and shall 
notify the manufacturer of this determination, within one year of 
receiving the manufacturer's Tier 3 submittal.
    (B) If EPA does not notify the manufacturer of potential Tier 3 
requirements within the prescribed timeframe, then additional testing at 
the Tier 3 level is deemed currently unnecessary and the manufacturer 
shall be considered to have complied with all current registration 
requirements for the new fuel or additive product.
    (iii) Upon completion of all current Tier 1, Tier 2, and Tier 3 
requirements, and submission of an application for registration which 
includes all of the information and assurances required by Sec.  79.11 
or Sec.  79.21, the registration of the new fuel or additive shall be 
granted, and the registrant may then sell, offer for sale, or introduce 
into commerce the registered product as permitted by Sec.  79.4.
    (iv) Once the new product becomes registered, EPA reserves the right 
to require additional Tier 3 testing pursuant to the procedures 
specified in Sec.  79.54.
    (e) Inspection of a testing facility. (1) A testing facility, 
whether engaged in emissions analysis or health and/or welfare effects 
testing under the regulations in this subpart, shall permit an 
authorized employee or duly designated representative of EPA, at 
reasonable times and in a reasonable manner, to inspect the facility and 
to inspect (and in the case of records also to copy) all records and 
specimens required to be maintained regarding studies to which this 
subpart applies. The records inspection and copying requirements shall 
not apply to quality assurance unit records of findings and problems, or 
to actions recommended and taken, except the EPA may seek production of 
these records in litigation or informal hearings.
    (2) EPA will not consider reliable for purposes of showing that a 
test substance does or does not present a risk of injury to health or 
the environment any data developed by a testing facility or sponsor that 
refuses to permit inspection in accordance with this section. The 
determination that a study will not be considered reliable does not, 
however, relieve the sponsor of a required test of any obligation under 
any applicable statute or regulation to submit the results of the study 
to EPA.
    (3) Effects of non-compliance. Pursuant to sections 114, 208, and 
211(d) of the CAA, it shall be a violation of this section and a 
violation of 40 CFR part 79, subpart F to deny entry to an authorized 
employee or duly designated representative of EPA for the purpose of 
auditing a testing facility or test data.
    (f) Penalties and Injunctive Relief. (1) Any person who violates 
these regulations shall be subject to a civil penalty of up to $25,000 
for each and every day of the continuance of the violation and the 
economic benefit or savings resulting from the violation. Action to 
collect such civil penalties shall be commenced in accordance with 
paragraph (b) of section 205 of the Clean Air Act or assessed in 
accordance with paragraph (c) of section 205 of the Clean Air Act, 42 
U.S.C. 7524 (b) and (c).
    (2) Under section 205(b) of the CAA, the Administrator may commence 
a civil action for violation of this subpart in the district court of 
the United States for the district in which the violation is alleged to 
have occurred or in which the defendant resides or has a principal place 
of business.
    (3) Under section 205(c) of the CAA, the Administrator may assess a 
civil penalty of $25,000 for each and every day of the continuance of 
the violation and the economic benefit or savings resulting from the 
violation, except that the maximum penalty assessment shall not exceed 
$200,000, unless the Administrator and the Attorney General jointly 
determine that a matter involving a larger penalty amount is appropriate 
for administrative penalty assessment.

[[Page 21]]

Any such determination by the Administrator and the Attorney General 
shall not be subject to judicial review.
    (4) The Administrator may, upon application by the person against 
whom any such penalty has been assessed, remit or mitigate, with or 
without conditions, any such penalty.
    (5) The district courts of the United States shall have jurisdiction 
to compel the furnishing of information and the conduct of tests 
required by the Administrator under these regulations and to award other 
appropriate relief. Actions to compel such actions shall be brought by 
and in the name of the United States. In any such action, subpoenas for 
witnesses who are required to attend a district court in any district 
may run into any other district.
    (6) Cancellation. (i) The Administrator of EPA may issue a notice of 
intent to cancel a fuel or fuel additive registration if the 
Administrator determines that the registrant has failed to submit in a 
timely manner any data required to maintain registration under this part 
or under section 211(b) or 211(e) of the Clean Air Act.
    (ii) Upon issuance of a notice of intent to cancel, EPA will forward 
a copy of the notice to the registrant by certified mail, return receipt 
requested, at the address of record given in the registration, along 
with an explanation of the reasons for the proposed cancellation.
    (iii) The registrant will be afforded 60 days from the date of 
receipt of the notice of intent to cancel to submit written comments 
concerning the notice, and to demonstrate or achieve compliance with the 
specific data requirements which provide the basis for the proposed 
cancellation. If the registrant does not respond in writing within 60 
days from the date of receipt of the notice of intent to cancel, the 
cancellation of the registration shall become final by operation of law 
and the Administrator shall notify the registrant of such cancellation. 
If the registrant responds in writing within 60 days from the date of 
receipt of the notice of intent to cancel, the Administrator shall 
review and consider all comments submitted by the registrant before 
taking final action concerning the proposed cancellation. The 
registrants' communications should be sent to the following address: 
Attn: Fuel/Additives Registration, U.S. Environmental Protection Agency, 
1200 Pennsylvania Ave. NW, Mail Code 6405A, Washington, DC 20460.
    (iv) As part of a written response to a notice of intent to cancel, 
a registrant may request an informal hearing concerning the notice. Any 
such request shall state with specificity the information the registrant 
wishes to present at such a hearing. If an informal hearing is 
requested, EPA shall schedule such a hearing within 60 days from the 
date of receipt of the request. If an informal hearing is held, the 
subject matter of the hearing shall be confined solely to whether or not 
the registrant has complied with the specific data requirements which 
provide the basis for the proposed cancellation. If an informal hearing 
is held, the designated presiding officer may be any EPA employee, the 
hearing procedures shall be informal, and the hearing shall not be 
subject to or governed by 40 CFR part 22 or by 5 U.S.C. 554, 556, or 
557. A verbatim transcript of each informal hearing shall be kept and 
the Administrator shall consider all relevant evidence and arguments 
presented at the hearing in making a final decision concerning a 
proposed cancellation.
    (v) If a registrant who has received a notice of intent to cancel 
submits a timely written response, and the Administrator decides after 
reviewing the response and the transcript of any informal hearing to 
cancel the registration, the Administrator shall issue a final 
cancellation order, forward a copy of the cancellation order to the 
registrant by certified mail, and promptly publish the cancellation 
order in the Federal Register. Any cancellation order issued after 
receipt of a timely written response by the registrant shall become 
legally effective five days after it is published in the Federal 
Register.
    (g) Modification of Regulation. (1) In special circumstances, a 
manufacturer subject to the registration requirements of this rule may 
petition the Administrator to modify the mandatory testing requirements 
in the test standard for any test required by this rule

[[Page 22]]

by application to Director, Field Operations and Support Division, at 
the address in paragraph (f)(6)(iii) of this section.
    (i) Such request shall be made as soon as the test sponsor is aware 
that the modification is necessary, but in no event shall the request be 
made after 30 days following the event which precipitated the request.
    (ii) Upon such request, the Administrator may, in circumstances 
which are outside the control of the manufacturer(s) or his/their agent 
and which could not have been reasonably foreseen or avoided, modify the 
mandatory testing requirements in the rule if such requirements are 
infeasible.
    (iii) If the Administrator determines that such modifications would 
not significantly alter the scope of the test, EPA will not ask for 
public comment before approving the modification. The Administrator will 
notify the test sponsor by certified mail of the response to the 
request. EPA will place copies of each application and EPA response in 
the public docket. EPA will publish a notice in the Federal Register 
annually describing such changes which have occurred during the previous 
year. Until such Federal Register notice is published, any modification 
approved by EPA shall apply only to the person or group who requested 
the modification; EPA shall state the applicability of each modification 
in such notice.
    (iv) Where, in EPA's judgment, the requested modification of a test 
standard would significantly change the scope of the test, EPA will 
publish a notice in the Federal Register requesting comment on the 
request and proposed modification. However, EPA may approve a requested 
modification of a test standard without first seeking public comment if 
necessary to preserve the validity of an ongoing test undertaken in good 
faith.
    (2) [Reserved]
    (h) Special Requirements for Additives. When an additive is the test 
subject, the following rules apply:
    (1) All required emission characterization and health effects 
testing procedures shall be performed on the mixture which results when 
the additive is combined with the base fuel for the appropriate fuel 
family (as specified in Sec.  79.55) at the maximum concentration 
recommended by the additive manufacturer pursuant to Sec.  79.21(d). 
This combination shall be known as the additive/base fuel mixture.
    (i) The appropriate fuel family to be utilized for the additive/base 
fuel mixture is the fuel family which contains the specific type(s) of 
fuel for which the additive is presently registered or for which the 
manufacturer of the additive is seeking registration.
    (ii) Additives belonging to more than one fuel family.
    (A) If an additive product is registered in two or more fuel 
families as of May 27, 1994, then the manufacturer of that additive is 
responsible for testing (or participating in group testing of) the 
respective additive/base fuel mixtures in compliance with the 
requirements of this subpart for each fuel family in which the 
manufacturer wishes to maintain a registration for its additive.
    (B) If a manufacturer is seeking to register such additive in two or 
more fuel families then, for testing and registration purposes, the 
additive shall be considered to be a member of each fuel family in which 
the manufacturer is seeking registration. The manufacturer is 
responsible for testing (or participating in group testing of) the 
respective additive/base fuel mixture in compliance with the 
requirements of this subpart for each fuel family in which the 
manufacturer wishes to obtain a product registration for its additive.
    (iii) In the case of the methanol fuel family, which contains two 
base fuels (M100 and M85 base fuels, pursuant to Sec.  79.55(d)), the 
applicable base fuel is the one which represents the fuel/additive group 
(specified in Sec.  79.56(e)(4)(i)(C)) containing fuels of which the 
most gallons are sold annually.
    (iv) Aftermarket additives which are intended by the manufacturer to 
be added to the fuel tank only at infrequent intervals shall be applied 
according to the manufacturer's specifications during mileage 
accumulation, pursuant to Sec.  79.57(c). However, during emission 
generation and testing, each tankful of fuel used must contain the

[[Page 23]]

fuel additive at its maximum recommended level. If the additive 
manufacturer believes that this maximum treatment rate will cause 
adverse effects to the test engine and/or that the engine's emissions 
may be subject to artifacts due to overuse of the additive, then the 
manufacturer may submit a request to EPA for modification of this 
requirement and related test procedures. Such request must include 
objective evidence that the modification(s) are needed, along with data 
demonstrating the maximum concentration of the additive which may 
actually reach the fuel tanks of vehicles in use.
    (v) Additives produced exclusively for use in 1 diesel fuel shall 
be tested in the diesel base fuel specified in Sec.  79.55(c), even 
though that base fuel is formulated with 2 diesel fuel. If a 
manufacturer is concerned that emissions generated from this combination 
of fuel and additive are subject to artifacts due to this blending, then 
that manufacturer may submit a request for a modification in test 
procedure requirements to the EPA. Any such request must include 
supporting test results and suggested test modifications.
    (vi) Bulk additives which are used intermittently for the direct 
purpose of conditioning or treating a fuel during storage or transport, 
or for treating or maintaining the storage, pipeline, and/or other 
components of the fuel distribution system itself and not the vehicle/
engine for which the fuel is ultimately intended, shall, for purposes of 
this program, be added to the base fuel at the maximum concentration 
recommended by the additive manufacturer for treatment of the fuel or 
distribution system component. However, if the additive manufacturer 
believes that this treatment rate will cause adverse effects to the test 
engine and/or that the engine's emissions may be subject to artifacts 
due to overuse of the additive, then the manufacturer may submit a 
request to EPA for modification of this requirement and related test 
procedures. Such request must include objective evidence that the 
modification(s) are needed, along with data demonstrating the maximum 
concentration of the additive which may actually reach the fuel tanks of 
vehicles in use.
    (2) EPA shall use emissions speciation and health effects data 
generated in the analysis of the applicable base fuel as control data 
for comparison with data generated for the additive/base fuel mixture.
    (i) The base fuel control data may be:
    (A) Generated internally as an experimental control in conjunction 
with testing done in compliance with registration requirements for a 
specific additive; or
    (B) Generated externally in the course of testing different 
additive(s) belonging to the same fuel family, or in the testing of a 
base fuel serving as representative of the baseline group for the 
respective fuel family pursuant to Sec.  79.56(e)(4)(i).
    (ii) Control data generated using test equipment (including vehicle 
model and/or engine, or Evaporative Emissions Generator specifications, 
as appropriate) and protocols identical or nearly identical to those 
used in emissions and health effects testing of the subject additive/
base fuel mixture would be most relevant for comparison purposes.
    (iii) If an additive manufacturer chooses the same vehicle/engine to 
independently test the base fuel as an experimental control prior to 
testing the additive/base fuel mixture, then the test vehicle/engine 
shall undergo two mileage accumulation periods, pursuant to Sec.  
79.57(c). The initial mileage accumulation period shall be performed 
using the base fuel alone. After base fuel testing, and prior to testing 
of the additive/base fuel mixture, a second mileage accumulation period 
shall be performed using the additive/base fuel mixture. The procedures 
outlined in this paragraph shall not preclude a manufacturer from 
testing a base fuel and the manufacturer's additive/base fuel mixture 
separately in identical, or nearly identical, vehicles/engines.
    (i) Multiple Test Potential for Non-Baseline Products. (1) When the 
composition information reported in the registration application or 
basic registration data for a gasoline or diesel product meets criteria 
for classification as a non-baseline product (pursuant to Sec.  
79.56(e)(3)(i)(B) or

[[Page 24]]

Sec.  79.56(e)(3)(ii)(B)), then the manufacturer is responsible for 
testing (or participating in group testing) of a separate formulation 
for each reported oxygenating compound, specified class of oxygenating 
compounds, or other substance which defines a separate non-baseline 
fuel/additive group pursuant to Sec.  79.56(e)(4)(ii)(A) or (B). For 
each such substance, testing shall be performed on a mixture of the 
relevant substance in the appropriate base fuel, formulated according to 
the specifications for the corresponding group representatives in Sec.  
79.56(e)(4)(ii).
    (2) When the composition information reported in the registration 
application or basic registration data for a non- baseline gasoline 
product contains a range of total oxygenate concentration-in-use which 
encompasses gasoline formulations with less than 1.5 weight percent 
oxygen as well as gasoline formulations with 1.5 weight percent oxygen 
or more, then the manufacturer is required to test (or participate in 
applicable group testing of) a baseline gasoline formulation as well as 
one or more non-baseline gasoline formulations as described in paragraph 
(h)(1) of this section.
    (3) When the composition information reported in the registration 
application or basic registration data for a non- baseline diesel 
product contains a range of total oxygenate concentration-in-use which 
encompasses diesel formulations with less than 1.0 weight percent oxygen 
as well as diesel formulations with 1.0 weight percent oxygen or more, 
then the manufacturer is required to test (or participate in applicable 
group testing) of a baseline diesel formulation as well as one or more 
non-baseline diesel formulations as described in paragraph (h)(1) of 
this section.
    (4) The presence in a particular oxygenating additive of small 
amounts of other unintended oxygenate compounds as byproducts of the 
manufacturing process of the given oxygenating additive does not affect 
the grouping of that additive and does not create multiple testing 
responsibilities for manufacturers who blend that additive into fuel.
    (j) Multiple Test Potential for Atypical Fuel Formulations. When the 
composition information reported in the registration application or 
basic registration data for a fuel product includes more than one 
atypical bulk additive product (pursuant to Sec.  79.56(e)(2)(iii)), and 
when these additives belong to different fuel/additive groups (pursuant 
to Sec.  79.56(e)(4)(iii)), then:
    (1) When such disparate additive products are for the same purpose-
in-use and are not ordinarily used in the fuel simultaneously, the fuel 
manufacturer shall be responsible for testing (or participating in the 
group testing of) a separate formulation for each such additive product. 
Testing related to each additive product shall be performed on a mixture 
of the additive in the applicable base fuel, as described in paragraph 
(g)(1) of this section, or by participation in the costs of testing the 
designated representative of the fuel/additive group to which each 
separate atypical additive product belongs.
    (2) When the disparate additive products are not for the same 
purpose-in-use, the fuel manufacturer shall nevertheless be responsible 
for testing a separate formulation for each such additive product, as 
described in paragraph (g)(1) of this section, if these additives are 
not ordinarily blended together in the same commercial formulation of 
the fuel.
    (3) When the disparate additive products are ordinarily blended 
together in the same commercial formulation of the fuel, then the fuel 
manufacturer shall be responsible for the testing of a single test 
formulation containing all such simultaneously used atypical additive 
products. Alternatively, this responsibility can be satisfied by 
enrolling such fuel product in a group which includes other fuel or 
additive products with the same total combination of atypical elements 
as that occurring in the fuel product in question. If the basic 
registration data for the subject fuel includes any alternative 
additives which contain atypical elements not represented in the test 
formulation, then the fuel manufacturer is also responsible for testing 
a separate formulation for each such additional disparate additive 
product.

[[Page 25]]

    (k) Emission Control System Testing. If any information submitted in 
accordance with this subpart or any other information available to EPA 
shows that a fuel or fuel additive may have a deleterious effect on the 
performance of any emission control system or device currently in use or 
which has been developed to a point where in a reasonable time it would 
be in general use were such effect avoided, EPA may, in its judgment, 
require testing to determine whether such effects in fact exist. Such 
testing will be required in accordance with such protocols and schedules 
as the Administrator shall reasonably require and shall be paid for by 
the fuel or fuel additive manufacturer.

[59 FR 33093, June 27, 1994, as amended at 61 FR 36511, July 11, 1996; 
62 FR 12575, Mar. 17, 1997; 85 FR 7069, Feb. 6, 2020]



Sec.  79.52  Tier 1.

    (a) General Specifications. Tier 1 requires manufacturers of 
designated fuels or fuel additives (or groups of manufacturers pursuant 
to Sec.  79.56) to supply to the Administrator the identity and 
concentration of certain emission products of such fuels or additives 
and any available information regarding the health and welfare effects 
of the whole and speciated emissions of such fuels or additives. In 
addition to any information required under Sec.  79.59 and in 
conformance with the reporting requirements thereof, manufacturers shall 
provide, pursuant to the timing provisions of Sec.  79.51(c), the 
following information.
    (b) Emissions Characterization. Manufacturers must provide a 
characterization of the emission products which are generated by 
evaporation (if required pursuant to Sec.  79.58(b)) and by combustion 
of the fuel or additive/base fuel mixture in a motor vehicle. For this 
purpose, manufacturers may perform the characterization procedures 
described in this section or may rely on existing emission 
characterization data. To be considered adequate in lieu of performing 
new emission characterization procedures, the data must be the result of 
tests using the product in question or using a fuel or additive/base 
fuel mixture meeting the same grouping criteria as the product in 
question. In addition, the emissions must be generated in a manner 
reasonably similar to those described in Sec.  79.57, and the 
characterization procedures must be adequately performed and documented 
and must give results reasonably comparable to those which would be 
obtained by performing the procedures described herein. Reports of 
previous tests must be sufficiently detailed to allow EPA to judge the 
adequacy of protocols, techniques, and conclusions. After the 
manufacturer's submittal of such data, if EPA finds that the 
manufacturer has relied upon inadequate test data, then the manufacturer 
will not be considered to be in compliance until the corresponding tests 
have been conducted and the results submitted to EPA.
    (1) General Provisions. (i) The emissions to be characterized shall 
be generated, collected, and stored according to the processes described 
in Sec.  79.57. Characterization of combustion and evaporative emissions 
shall be performed separately on each emission sample collected during 
the applicable emission generation procedure.
    (ii) As provided in Sec.  79.57(d), if the emission generation 
vehicle/engine is ordinarily equipped with an emission aftertreatment 
device, then all requirements in this section for the characterization 
of combustion emissions must be completed both with and without the 
aftertreatment device in a functional state. The emissions shall be 
generated three times (on three different days) without a functional 
aftertreatment device and, if applicable, three times (on three 
different days) with a functional aftertreatment device, and each such 
time shall be analyzed according to the remaining provisions in this 
paragraph (b) of this section.
    (iii) Measurement of background emissions: It is required that 
ambient/dilution air be analyzed for levels of background chemical 
species present at the time of emissions sampling (for both combustion 
and evaporative emissions) and that sample values be corrected by 
substracting the concentrations contributed by the ambient/dilution air. 
Background chemical species measurement/analysis during the FTP is 
specified in Sec. Sec.  86.109-94(c)(5) and 86.135-94 of this chapter.

[[Page 26]]

    (iv) Concentrations of emission products shall be reported either in 
units of grams per mile (g/mi) or grams per brake-horsepower/hour (g/
bhp-hr) (for chassis dynamometer and engine dynamometer test 
configurations, respectively), as well as in units of weight percent of 
measured total hydrocarbons.
    (v) Laboratory practice must be of high quality and must be 
consistent with state-of-the-art methods as presented in current 
environmental and analytical chemistry literature. Examples of 
analytical procedures which may be used in conducting the emission 
characterization/speciation requirements of this section can be found 
among the references in paragraph (b)(5) of this section.
    (2) Characterization of the combustion emissions shall include, for 
products in all fuel families (except when expressly noted in this 
section):
    (i) Determination of the concentration of the basic emissions as 
follows: total hydrocarbons, carbon monoxide, oxides of nitrogen, and 
particulates. Manufacturers are referred to the vehicle certification 
procedures in 40 CFR part 86, subparts B and D (Sec. Sec.  86.101 
through 86.145 and Sec. Sec.  86.301 through 86.348) for guidance on the 
measurement of the basic emissions of interest to this subpart.
    (ii) Characterization of the vapor phase of combustion emissions, as 
follows:
    (A) Determination of the identity and concentration of individual 
species of hydrocarbon compounds containing 12 or fewer carbon atoms. 
Such characterization shall begin within 30 minutes after emission 
collection is completed.
    (B) Determination of the identity and concentration of individual 
species of aldehyde and ketone compounds containing eight or fewer 
carbon atoms. Characterization of these emissions captured in cartridges 
shall be performed within two weeks if the cartridge is stored at room 
temperature, and one month if the cartridge is stored at 0 [deg]C or 
less. If the emissions are sampled using the impinger method, the sample 
must be stored in a capped sample vial at 0 [deg]C or less and 
characterized within one week.
    (C) Determination of the identity and concentration of individual 
species of alcohol and ether compounds containing six or fewer carbon 
atoms, for those fuels and additive/base fuel mixtures which contain 
alcohol and/or ether compounds containing from one to six carbon atoms 
in the uncombusted state. For fuel and additive formulations containing 
alcohols or ethers with more than six carbon atoms in the uncombusted 
state, alcohol and ether species with that higher number of carbon atoms 
or less must be identified and measured in the emissions. Such 
characterization shall begin within four hours after emission collection 
is completed.
    (iii) Characterization of the semi-volatile and particulate phases 
of combustion emissions to identify and measure polycyclic aromatic 
compounds, as follows:
    (A) Analysis for polycyclic aromatic compounds shall not be 
conducted at or soon after the start of a recommended engine lubricant 
change interval.
    (B) Analysis for polycyclic aromatic hydrocarbons (PAHs) and 
nitrated polycyclic aromatic hydrocarbons (NPAHs), specified in 
paragraph (b)(2)(iii)(D) of this section, need not be done for any fuels 
and additives in the methane or propane fuel families, nor for fuels and 
additives in the atypical categories of any other fuel families, 
pursuant to the definitions of such families and categories in Sec.  
79.56.
    (C) Analysis for poly-chlorinated dibenzodioxins and dibenzofurans 
(PCDD/PCDFs), specified in paragraph (b)(2)(iii)(E) of this section, is 
required only for fuels and additives which contain chlorine as an 
atypical element, pursuant to paragraph (b)(2)(iv) of this section, 
which requires all individual emission products containing atypical 
elements to be determined for atypical fuels and additives. However, 
manufacturers of baseline and nonbaseline fuels and fuel additives in 
all fuel families, except those in the methane and propane fuel 
families, are strongly encouraged to conduct these analyses on a 
voluntary basis.
    (D) The analytical method used to measure species of PAHs and NPAHs 
should be capable of detecting at least 1 ppm (equivalent to 0.001 
microgram

[[Page 27]]

([micro]g) of compound per milligram of organic extract) of these 
compounds in the extractable organic matter. The concentration of each 
individual PAH or NPAH compound identified shall be reported in units of 
microgram per mile or nanograms per brake-horsepower/hour (for chassis 
dynamometer and engine dynamometer test configurations, respectively). 
Each compound which is present at 0.001 [micro]g per mile (0.5 nanograms 
per brake-horsepower/hour) or more must be identified, measured, and 
reported. The following individual species shall be measured:
    (1) PAHs:
    (i) Benzo(a)anthracene;
    (ii) Benzo[b]fluoranthene;
    (iii) Benzo[k]fluoranthene;
    (iv) Benzo(a)pyrene;
    (v) Chrysene;
    (vi) Dibenzo[a,h]anthracene; and
    (vii) Indeno[1,2,3-c,d]pyrene.
    (2) NPAHs:
    (i) 7-Nitrobenzo[a]anthracene;
    (ii) 6-Nitrobenzo[a]pyrene;
    (iii) 6-Nitrochrysene;
    (iv) 2-Nitrofluorene; and
    (v) 1-Nitropyrene.
    (E) The analytical method used to measure species and classes of 
PCDD/PCDFs should be capable of detecting at least 1 part per trillion 
(ppt) (equivalent to 0.001 picogram (pg) of compound per milligram of 
organic extract) of these compounds in the extractable organic matter. 
The concentration of each individual PCDD/PCDF compound identified shall 
be reported in units of picograms (pg) per mile or picograms per brake-
horsepower/hour (for chassis dynamometer and engine dynamometer test 
configurations, respectively). Each compound which is present at 0.5 pg/
mile (0.3 pg/bhp-hr) or more must be identified, measured, and reported.
    (1) With respect to measurement of PCDD/PCDFs only, the liquid 
extracts from the particulate and semi-volatile emissions fractions may 
be combined into one sample for analysis.
    (2) The manufacturer is referred to 40 CFR part 60, appendix A, 
Method 23 for a protocol which may be used to identify and measure any 
potential PCDD/PCDFs which might be present in exhaust emissions from a 
fuel or additive/base fuel mixture.
    (3) The following individual compounds and classes of compounds of 
PCDD/PCDFs shall be identified and measured:
    (i) Individual tetra-chloro-substituted dibenzodioxins (tetra-CDDs);
    (ii) Individual tetra-chloro-substituted dibenzofurans (tetra-CDFs);
    (iii) Penta-CDDs and penta-CDFs, as one class;
    (iv) Hexa-CDDs and hexa-CDFs, as one class;
    (v) Hepta-CDDs and hepta-CDFs as one class; and
    (vi) Octo-CDDs and octo-CDFs as one class.
    (iv) With respect to all phases (vapor, semi-volatile, and 
particulate) of combustion emissions generated from those fuels and 
additive/base fuel mixtures classified in the atypical categories 
(pursuant to Sec.  79.56), the identity and concentration of individual 
emission products containing such atypical elements shall also be 
determined.
    (3) For evaporative fuels and evaporative fuel additives, 
characterization of the evaporative emissions shall include:
    (i) Determination of the concentration of total hydrocarbons for the 
applicable vehicle type and class in 40 CFR part 86, subpart B 
(Sec. Sec.  86.101 through 86.145).
    (ii) Determination of the identity and concentration of individual 
species of hydrocarbon compounds containing 12 or fewer carbon atoms. 
Such characterization shall begin within 30 minutes after emission 
collection is completed.
    (iii) In the case of those fuels and additive/base fuel mixtures 
which contain alcohol and/or ether compounds in the uncombusted state, 
determination of the identity and concentration of individual species of 
alcohol and ether compounds containing six or fewer carbon atoms. For 
fuel and additive formulations containing alcohols or ethers with more 
than six carbon atoms in the uncombusted state, alcohol and ether 
species with that higher number of carbon atoms or less must be 
identified and measured in the emissions. Such characterization shall 
begin within four hours after emission collection is completed.
    (iv) In the case of those fuels and additive/base fuel mixtures 
which contain

[[Page 28]]

atypical elements, determination of the identity and concentration of 
individual emission products containing such atypical elements.
    (4) Laboratory quality control. (i) At a minimum, laboratories 
performing the procedures specified in this section shall conduct 
calibration testing of their emissions characterization equipment before 
each new fuel/additive product test start-up. Known samples 
representative of the compounds potentially to be found in emissions 
from the product to be characterized shall be used to calibrate such 
equipment.
    (ii) Laboratories performing the procedures specified in this 
section shall agree to permit quality control inspections by EPA, and 
for this purpose shall admit any EPA Enforcement Officer, upon proper 
presentation of credentials, to any facility where vehicles are 
conditioned or where emissions are generated, collected, stored, 
sampled, or characterized in meeting the requirements of this section. 
Such laboratory audits may include EPA distribution of ``blind'' samples 
for analysis by participating laboratories.
    (5) References. For additional background information on the 
emission characterization procedures outlined in this paragraph, the 
following references may be consulted:
    (i) ``Advanced Emission Speciation Methodologies for the Auto/Oil 
Air Quality Improvement Program--I. Hydrocarbons and Ethers,'' Auto Oil 
Air Quality Improvement Research Program, SP-920, 920320, SAE, February 
1992.
    (ii) ``Advanced Speciation Methodologies for the Auto/Oil Air 
Quality Improvement Research Program--II. Aldehydes, Ketones, and 
Alcohols,'' Auto Oil Air Quality Improvement Research Program, SP-920, 
920321, SAE, February 1992.
    (iii) ASTM D 5197-91, ``Standard Test Method for Determination of 
Formaldehyde and Other Carbonyl Compounds in Air (Active Sampler 
Methodology).''
    (iv) Johnson J. H., Bagley, S. T., Gratz, L. D., and Leddy, D. G., 
``A Review of Diesel Particulate Control Technology and Emissions 
Effects--1992 Horning Memorial Award Lecture,'' SAE Technical Paper 
Series, SAE 940233, 1994.
    (v) Keith et al., ACS Committee on Environmental Improvement, 
``Principles of Environmental Analysis,'' The Journal of Analytical 
Chemistry, Volume 55, pp. 2210-2218, 1983.
    (vi) Perez, J.M., Jabs, R.E., Leddy, D.G., eds. ``Chemical Methods 
for the Measurement of Unregulated Diesel Emissions (CRC-APRAC Project 
No. CAPI-1-64), Coordinating Research Council, CRC Report No. 551, 
August, 1987.
    (vii) Schuetzle, D., ``Analysis of Nitrated Polycyclic Aromatic 
Hydrocarbons in Diesel Particulates,'' Analytical Chemistry, Volume 54, 
pp. 265-271, 1982.
    (viii) Siegl, W.O., et al., ``Improved Emissions Speciation 
Methodology for Phase II of the Auto/Oil Air Quality Improvement 
Research Program--Hydrocarbons and Oxygenates'', SAE Technical Paper 
Series, SAE 930142, 1993.
    (ix) Tejada, S. B. et al., ``Analysis of Nitroaromatics in Diesel 
and Gasoline Car Emissions,'' SAE Paper No. 820775, 1982.
    (x) Tejada, S. B. et al., ``Fluorescence Detection and 
Identification of Nitro Derivatives of Polynuclear Aromatic Hydrocarbons 
by On-Column Catalytic Reduction to Aromatic Amines,'' Analytical 
Chemistry, Volume 58, pp. 1827-1834, July 1986.
    (xi) ``Test Method for Determination of C1-C4 Alcohols and MTBE in 
Gasoline by Gas Chromatography,'' 40 CFR part 80, appendix F.
    (c) [Reserved]
    (d) Literature Search. (1) Manufacturers of fuels and fuel additives 
shall conduct a literature search and compilation of information on the 
potential toxicologic, environmental, and other public welfare effects 
of the emissions of such fuels and additives. The literature search 
shall include all available relevant information from in-house, 
industry, government, and public sources pertaining to the emissions of 
the subject fuel or fuel additive or the emissions of similar fuels or 
additives, with such similarity determined according to the provisions 
of Sec.  79.56.
    (2) The literature search shall address the potential adverse 
effects of

[[Page 29]]

whole combustion emissions, evaporative emissions, relevant emission 
fractions, and individual emission products of the subject fuel or fuel 
additive except as specified in the following paragraph. The individual 
emission products to be included are those identified pursuant to the 
emission characterization procedures specified in paragraph (b) of this 
section, other than carbon monoxide, carbon dioxide, nitrogen oxides, 
benzene, 1,3-butadiene, acetaldehyde, and formaldehyde.
    (3) In the case of the individual emission products of non-baseline 
or atypical fuels and additives (pursuant to Sec.  79.56(e)(2)), the 
literature data need not be submitted for those emission products which 
are the same as the combustion emission products of the respective base 
fuel for the product's fuel family (pursuant to Sec.  79.55). For this 
purpose, data on the base fuel emission products for the product's fuel 
family:
    (i) May be found in the literature of previously-conducted, adequate 
emission speciation studies for the base fuel, or for a fuel or 
additive/fuel mixture capable of grouping with the base fuel (see, for 
example, the references in paragraph (b)(5) of this section).
    (ii) May be compiled while gathering internal control data during 
emissions characterization studies on the manufacturer's non-baseline or 
atypical product; or
    (iii) May be obtained from various manufacturers in the course of 
their testing different additive(s) belonging to the same fuel family, 
or in the testing of a base fuel serving as representative of the 
baseline group for the respective fuel family.
    (e) Data bases. The literature search must include the results of 
searching appropriate commercially available chemical, toxicologic, and 
environmental databases. The databases shall be searched using, at a 
minimum, CAS numbers (when applicable), chemical names, and common 
synonyms.
    (f) Search period. The literature search shall cover a time period 
beginning at least thirty years prior to the date of submission of the 
reports specified in Sec. Sec.  79.59(b) through (c) and ending no 
earlier than six months prior to the date on which testing is commenced 
or reports are submitted in compliance with this subpart.
    (g) References. Information on base fuel emission inventories may be 
found in references in paragraphs (b)(5)(i) through (xi) of this 
section, as well as in the following:
    (1) Auto/Oil Air Quality Improvement Research Program, Technical 
Bulletin 1, December 1990.
    (2) Keith et al., ACS Committee on Environmental Improvement, 
``Principles of Environmental Analysis,'' The Journal of Analytical 
Chemistry, Volume 55, pp. 2210-2218, 1983.
    (3) ``The Composition of Gasoline Engine Hydrocarbon Emissions--An 
Evaluation of Catalyst and Fuel Effects''--SAE 902074 and ``Speciated 
Hydrocarbon Emissions from Aromatic, Olefin, and Paraffinic Model 
Fuels''--SAE 930373.

[59 FR 33093, June 27, 1994, as amended at 61 FR 36511, July 11, 1996; 
62 FR 12571, Mar. 17, 1997]



Sec.  79.53  Tier 2.

    (a) Generally. Subject to the provisions of Sec.  79.53(b) through 
(d), the combustion emissions of each fuel or fuel additive subject to 
testing under this subpart must be tested in accordance with each of the 
testing guidelines in Sec. Sec.  79.60 through 79.68, except that fuels 
and additives in the methane and propane fuel families (pursuant to 
Sec.  79.56(e)(1)(v) and (vi)) need not undergo the Salmonella 
mutagenicity assay in Sec.  79.68). Similarly, subject to the provisions 
of Sec.  79.53(b) through (d), the evaporative emissions of each 
designated evaporative fuel and each designated evaporative fuel 
additive subject to testing under this subpart must be tested according 
to each of the testing guidelines in Sec. Sec.  79.60 through 79.67 
(excluding Sec.  79.68, Salmonella typhimurium Reverse Mutation Assay).
    (b) Manufacturer Determination. Manufacturers shall determine 
whether the information gathered pursuant to the literature search in 
Sec.  79.52(d) contains the results of adequately performed and 
adequately documented previous testing which provides information 
reasonably comparable to that supplied by the health tests described in 
Sec. Sec.  79.62 through 79.68 regarding the carcinogenicity, 
mutagenicity, neurotoxicity,

[[Page 30]]

teratogenicity, reproductive/fertility measures, and general toxicity 
effects of the emissions of the fuel or additive. When manufacturers 
make an affirmative determination, they need submit only the information 
gathered pursuant to Sec.  79.52(d) for such tests. EPA maintains final 
authority in judging whether the information is an adequate substitution 
in lieu of conducting the associated tests. EPA's determination of the 
adequacy of existing information shall be guided by the considerations 
described in paragraph (d) of this section. If EPA finds that the 
manufacturer has relied upon inadequate test data, then the manufacturer 
will not be considered to be in compliance until the corresponding tests 
have been conducted and the results submitted to EPA.
    (c) Testing. (1) All testing required pursuant to this section must 
be done in accordance with the procedures, equipment, and facility 
requirements described in Sec. Sec.  79.57, 79.60, and 79.61 regarding 
emissions generation, good laboratory practices, and inhalation exposure 
testing, respectively, as well as any other requirements described in 
this subpart. The laboratory conducting the animal studies shall be 
registered and in good standing with the United States Department of 
Agriculture and regularly inspected by United States Department of 
Agriculture veterinarians. In addition, the facility must be accredited 
by a generally recognized independent organization which sets laboratory 
animal care standards. Use of inadequate test protocols or substandard 
laboratory techniques in performing any testing required by this subpart 
may result in cancellation of all affected registrations.
    (2) Carcinogenic or mutagenic effects in animals from emissions 
exposures shall be determined pursuant to Sec.  79.64 In vivo 
Micronucleus Assay, Sec.  79.65 In vivo Sister Chromatid Exchange Assay, 
and Sec.  79.68 Salmonella typhimurium Reverse Mutation Assay. 
Teratogenic effects and reproductive toxicity shall be examined pursuant 
to Sec.  79.63 Fertility Assessment/Teratology. General toxicity and 
pulmonary effects shall be determined pursuant to Sec.  79.62 Subchronic 
Toxicity Study with Specific Health Effect Assessments. Neurotoxic 
effects shall be determined pursuant to Sec.  79.66 Neuropathology 
Assessment and Sec.  79.67 Glial Fibrillary Acidic Protein Assay.
    (d) EPA Determination. (1) After submission of all information and 
testing, EPA in its judgment shall determine whether previously 
conducted tests relied upon in the registration submission are 
adequately performed and documented and provide information reasonably 
comparable to that which would be provided by the tests described 
herein. Manufacturers' submissions shall be sufficiently detailed to 
allow EPA to judge the adequacy of protocols, techniques, experimental 
design, statistical analyses, and conclusions. Studies shall be 
performed using generally accepted scientific principles, good 
laboratory techniques, and the testing guidelines specified in these 
regulations.
    (2) EPA shall give appropriate weight when making this determination 
to the following factors:
    (i) The age of the data;
    (ii) The adequacy of documentation of procedures, findings, and 
conclusions;
    (iii) The extent to which the testing conforms to generally accepted 
scientific principles and practices;
    (iv) The type and number of test subjects;
    (v) The number and adequacy of exposure concentrations, i.e., 
emission dilutions;
    (vi) The degree to which the tested emissions were generated by 
procedures and under conditions reasonably comparable to those set forth 
in Sec.  79.57; and
    (vii) The degree to which the test procedures conform to the testing 
guidelines set forth in Sec. Sec.  79.60 through 79.68 and/or furnish 
information comparable to that provided by such testing.
    (3) The test animals shall be rodents, preferably a strain of rat, 
and testing shall include all of the endpoints covered in Sec. Sec.  
79.62 through 79.68. All studies shall be properly executed, with 
appropriate documentation, and in accord with the individual health 
testing guidelines (Sec. Sec.  79.60 through 79.68) of this part, e.g., 
90-day, 6-hour per day exposure, minimum.

[[Page 31]]

    (4) In general, the data in a manufacturer's registration submittal 
shall be adequate if the duration of a test's exposure period is at 
least as long, in days and hours, as the inhalation exposure specified 
in the related health test guideline(s). Data from tests with shorter 
exposure durations than those specified in the guidelines may be 
acceptable if the test results are positive (i.e., exhibit adverse 
effects) and/or include a demonstrable concentration-response 
relationship.
    (5) Data in support of a manufacturer's registration submittal shall 
directly address the effects of inhalation exposure to the whole 
evaporative and exhaust emissions of the respective fuel or additive or 
to the whole evaporative and exhaust emissions of other fuels or 
additives which satisfy the criteria in Sec.  79.56 for classification 
into the same group as the subject fuel or fuel additive. Data obtained 
in the testing of a raw liquid fuel or additive/base fuel mixture or a 
raw, aerosolized fuel or additive/base fuel mixture shall not be 
adequate to support a manufacturer's registration submittal. Data from 
testing of evaporative emissions cannot substitute for test data on 
combustion emissions. Data from testing of combustion emissions cannot 
substitute for test data on evaporative emissions.



Sec.  79.54  Tier 3.

    (a) General Criteria for Requiring Tier 3 Testing. (1) Tier 3 
testing shall be required of a manufacturer or group of manufacturers at 
EPA's discretion when remaining uncertainties as to the significance of 
observed health effects, welfare effects, and/or emissions exposures 
from a fuel or fuel/additive mixture interfere with EPA's ability to 
make reasonable estimates of the potential risks posed by emissions from 
the fuel or additive products. Tier 3 testing may be conducted either on 
an individual basis or a group basis. If performed on a group basis, EPA 
may require either the same representative to be used in Tier 3 testing 
as was used in Tier 2 testing or may select a different member or 
members of the group to represent the group in the Tier 3 tests.
    (2) In addition to the criteria specific to particular tests as 
summarized and detailed in the testing guidelines (Sec. Sec.  79.62 
through 79.68), EPA may consider a number of factors (including, but not 
limited to):
    (i) The number of positive and negative outcomes related to each 
endpoint;
    (ii) The identification of concentration-effect relationships;
    (iii) The statistical sensitivity and significance of such studies;
    (iv) The severity of the observed effects (e.g., whether the effects 
would be likely to lead to incapacitating or irreversible conditions);
    (v) The type and number of species included in the reported tests;
    (vi) The consistency and clarity of apparent mechanisms, target 
organs, and outcomes;
    (vii) The presence or absence of effective health test control data 
for base-fuel-only versus additive/base fuel mixture comparisons;
    (viii) The nature and amount of known toxic agents in the emissions 
stream; and
    (ix) The observation of lesions which specifically implicate 
inhalation as an important exposure route.
    (3) Consideration of exposure. EPA retains discretion to consider, 
in addition to available toxicity data, any Tier 1 data on potential 
exposures to emissions from a particular fuel or fuel additive (or group 
of fuels and/or fuel additives) in determining whether to require Tier 3 
testing. EPA may consider, but is not limited to, the following factors:
    (i) Types and emission rates of speciated emission components;
    (ii) Types and emission rates of combinations of compounds or 
elements of concern;
    (iii) Historical and/or projected production volumes and market 
distributions; and
    (iv) Estimated population and/or environmental exposures obtained 
through extrapolation, modeling, or literature search findings on 
ambient, occupational, or epidemiological exposures.
    (b) Notice. (1) EPA will determine whether Tier 3 testing is 
necessary upon receipt of a manufacturer's (or group's) submittal as 
prescribed under Sec.  79.51(d). If EPA determines on the

[[Page 32]]

basis of the Tier 1 and 2 data submission and any other available 
information that further testing is necessary, EPA will require the 
responsible manufacturer(s) to conduct testing as described elsewhere in 
this section. EPA will notify the manufacturer (or group) by certified 
letter of the purpose and nature of any proposed testing and of the 
proposed deadline for completing the testing. A copy of the letter will 
be placed in the public record. EPA will provide the manufacturer a 60-
day comment period after the manufacturer's receipt of such notice. EPA 
may extend the comment period if it appears from the nature of the 
issues raised that further discussion is warranted. In the event that no 
comment is received by EPA from the manufacturer (or group) within the 
comment period, the manufacturer (or group) shall be deemed to have 
consented to the adoption by EPA of the proposed Tier 3 requirements.
    (2) EPA will issue a notice in the Federal Register of its intent to 
require testing under Tier 3 for a particular fuel or additive 
manufacturer and that a copy of the letter to the manufacturer outlining 
the Tier 3 testing for that manufacturer is available in the public 
record for review and comment. The public shall have a minimum of thirty 
(30) days after the publication of this notice to comment on the 
proposed Tier 3 testing.
    (3) EPA will include in the public record a copy of any timely 
comments concerning the proposed Tier 3 testing requirements received 
from the affected manufacturer or group or from the public, and the 
responses of EPA to such comments. After reviewing all such comments 
received, EPA will adopt final Tier 3 requirements by sending a 
certified letter describing such final requirements to the manufacturer 
or group. EPA will also issue a notice in the Federal Register 
announcing that it has adopted such final Tier 3 requirements and that a 
copy of the letter adopting the requirements has been included in the 
public record.
    (4) Prior to beginning any required Tier 3 testing, the manufacturer 
shall submit detailed test protocols to EPA for approval. Once EPA has 
determined the Tier 3 testing requirements and approves the test 
protocols, any modification to the requirements shall be governed by 
Sec.  79.51(f).
    (c) Carcinogenicity and Mutagenicity Testing. (1) A potential need 
for Tier 3 carcinogenicity and/or mutagenicity testing may be indicated 
if the results of the In vivo Micronucleus Assay, required under Sec.  
79.64, the In vivo Sister Chromatid Exchange Assay, required under Sec.  
79.65, the Salmonella mutagenicity assay required under Sec.  79.68, or 
relevant pathologic findings under Sec.  79.62 demonstrate a 
statistically significant dose-related positive response as compared 
with appropriate controls. Alternatively, Tier 3 carcinogenicity testing 
and/or mutagenicity testing may be required if there are positive 
outcomes for at least one concentration in two or more of the tests 
required under Sec. Sec.  79.64, 79.65, and 79.68.
    (2) The testing for carcinogenicity required under this paragraph 
may, at EPA's discretion, be conducted in accordance with 40 CFR 
798.3300 or 798.3320, or their equivalents (see suggested references 
following each health effects testing guideline). The testing for 
mutagenicity required under this paragraph may likewise be conducted in 
accordance with 40 CFR 798.5195, 798.5500, 798.5955, 798.7100, and/or 
other suitable equivalent testing (see suggested references following 
each health effects testing guideline). EPA may supplement or modify 
guidelines as required to ensure that the prescribed testing addresses 
the identified areas of concern.
    (d) Reproductive and Teratological Effects Testing. (1) A potential 
need for Tier 3 testing may be indicated if the results of the Fertility 
Assessment/Teratology study required under Sec.  79.63 or relevant 
findings under Sec.  79.62 demonstrate, in comparison with appropriate 
controls, a statistically significant dose-related positive response in 
one or more of the possible test outcomes. Similarly, Tier 3 testing may 
be indicated if statistically significant positive results are confined 
to either sex, or to the fetus as opposed to the pregnant adult.
    (2) The testing for reproductive and teratological effects required 
under this paragraph may, at EPA's discretion, be conducted in 
accordance with

[[Page 33]]

40 CFR 798.4700 and/or by performance of a reproductive assay by 
continuous breeding. These guidelines may be modified or supplemented by 
EPA as required to ensure that the prescribed testing addresses the 
identified areas of concern.
    (e) Neurotoxicity Testing. (1) A potential need for Tier 3 
neurotoxicity testing may be indicated if either the results of the 
Neuropathology Assessment required under Sec.  79.67 shows 
concentration-related effects in exposed animals or the Glial Fibrillary 
Acidic Protein Assay required under Sec.  79.66 demonstrates a 
statistically significant concentration-related positive response as 
compared with appropriate controls. Similarly, Tier 3 neurotoxicity 
testing may be indicated if relevant results under Sec.  79.62 
demonstrate a statistically significant positive response in comparison 
to appropriate controls.
    (2) The testing for neurotoxicity required under this paragraph may, 
at EPA's discretion, be conducted in accordance with 40 CFR 798.3260 and 
40 CFR part 798 subpart G. These guidelines may be modified or 
supplemented by EPA as required to ensure that the prescribed testing 
addresses the identified areas of concern.
    (f) General and Pulmonary Toxicity Testing. (1) A potential need for 
Tier 3 general and/or pulmonary toxicity testing may be indicated if, in 
comparison with appropriate controls, the results of the Subchronic 
Toxicity Study, pursuant to Sec.  79.62, demonstrate abnormal gross 
analysis or histopathological findings (especially as relates to lung 
pathology from whole-body preserved test animals) or persistence or 
delayed occurrence of toxic effects beyond the exposure period.
    (2) A potential need for Tier 3 testing with respect to other organ 
systems or endpoints not addressed by specific Tier 2 tests, e.g., 
hepatic, renal, or endocrine toxicity, may be demonstrated by findings 
in the Tier 2 Subchronic Toxicity Study (pursuant to Sec.  79.62) or by 
findings in the Tier 1 literature search of adverse functional, 
physiologic, metabolic, or histopathologic effects of fuel or additive 
emissions to such other organ systems or any other information available 
to EPA. In addition, findings in the Tier 1 emission characterization of 
significant levels of a known toxicant to such other organ systems and 
endpoints may also indicate a need for relevant health effects testing. 
The testing required under this paragraph may include tests conducted in 
accordance with 40 CFR 798.3260 or 798.3320. These guidelines may be 
modified or supplemented by EPA as necessary to ensure that the 
prescribed testing addresses the identified areas of concern.
    (3) The testing for general/pulmonary toxicity required under this 
paragraph may, at EPA's discretion, be conducted in accordance with 40 
CFR 798.2450 or 798.3260. These guidelines may be modified or 
supplemented by EPA as necessary to ensure that the prescribed testing 
addresses the identified areas of concern. Pulmonary function 
measurements, host defense assays, immunotoxicity tests, cell 
morphology/morphometry, and/or enzyme assays of lung lavage cells and 
fluids may be specifically required.
    (g) Other Tier 3 Testing. (1) A manufacturer or group may be 
required to use up-to-date modeling, sampling, monitoring, and/or 
analytic approaches at the Tier 3 level to provide:
    (i) Estimates of exposures to the emission products of a fuel or 
fuel additive or group of products;
    (ii) The expected atmospheric transformation products of such 
emissions; and
    (iii) The environmental partitioning of such emissions to the air, 
soil, water, and biota.
    (2) Additional emission characterization may be required if 
uncertainty over the identity of chemical species or rate of their 
emission interferes with reasonable judgments as to the presence and/or 
concentration of potentially toxic substances in the emissions of a fuel 
or fuel additive. The required tests may include characterization of 
additional classes of emissions, the characterization of emissions 
generated by additional vehicles/engines of various technology mixes 
(e.g., catalyzed versus non-catalyzed emissions), and/or other more 
precise analytic procedures for identification or quantification of 
emissions compounds. Additional emissions testing may also be

[[Page 34]]

required to evaluate concerns which may arise regarding the potential 
effects of a fuel or fuel additive on the performance of emission 
control equipment.
    (3) A manufacturer or group may be required to conduct biological 
and/or exposure studies at the Tier 3 level to evaluate directly the 
potential public welfare or environmental effects of the emissions of a 
fuel or additive, if significant concerns about such effects arise as a 
result of EPA's review of the literature search or emission 
characterization findings in Tier 1 or the results of the toxicological 
tests in Tier 2.
    (4) With regard to group submittals, Tier 3 studies on a fuel or 
additive product(s) other than the originally specified group 
representative may be required if specific differences in the product's 
composition indicate that its emissions may have different toxicologic 
properties from those of the original group representative.
    (5) Additional emission characterization and/or toxicologic tests 
may be required to evaluate the impact of different vehicle, engine, or 
emission control technologies on the observed composition or health or 
welfare effects of the emissions of a fuel or additive.
    (6) Toxicological tests on individual emission products may be 
required.
    (7) Upon review of information submitted for an aerosol product 
under Sec.  79.58(e), emissions characterization, exposure, and/or 
toxicologic testing at a Tier 3 level may be required.
    (8) A manufacturer which qualifies for and has elected to use the 
special provisions for the products of small businesses (pursuant to 
Sec.  79.58(d)) may be required to conduct emission characterization, 
exposure, and/or toxicologic studies at the Tier 3 level for such 
products, as specified in Sec.  79.58(d)(4).
    (9) The examples of potential Tier 3 tests described in this section 
do not in any way limit EPA's broad discretion and authority under Tier 
3.



Sec.  79.55  Base fuel specifications.

    (a) General Characteristics. (1) The base fuel(s) in each fuel 
family shall serve as the group representative(s) for the baseline 
group(s) in each fuel family pursuant to Sec.  79.56. Also, as specified 
in Sec.  79.51(h)(1), for fuel additives undergoing testing, the 
designated base fuel for the respective fuel family shall serve as the 
substrate in which the additive shall be mixed prior to the generation 
of emissions.
    (2) Base fuels shall contain a limited complement of the additives 
which are essential for the fuel's production or distribution and/or for 
the successful operation of the test vehicle/engine throughout the 
mileage accumulation and emission generation periods. Such additives 
shall be used at the minimum effective concentration-in-use for the base 
fuel in question.
    (3) Unless otherwise restricted, the presence of trace contaminants 
does not preclude the use of a fuel or fuel additive as a component of a 
base fuel formulation.
    (4) When an additive is the test subject, any additive normally 
contained in the base fuel which serves the same function as the subject 
additive shall be removed from the base fuel formulation. For example, 
if a corrosion inhibitor were the subject of testing and if this 
additive were to be tested in a base fuel which normally contained a 
corrosion inhibitor, this test additive would replace the corrosion 
inhibitor normally included as a component of the base fuel.
    (5) Additive components of the methanol, ethanol, methane, and 
propane base fuels in addition to any such additives included below 
shall be limited to those recommended by the manufacturers of the 
vehicles and/or engines used in testing such fuels. For this purpose, 
EPA will review requests from manufacturers (or their agents) to modify 
the additive specifications for the alternative fuels and, if necessary, 
EPA shall change these specifications based on consistency of those 
changes with the associated vehicle manufacturer's recommendations for 
the operation of the vehicle. EPA shall publish notice of any such 
changes to a base fuel and/or its base additive package specifications 
in the Federal Register.
    (b) Gasoline Base Fuel. (1) The gasoline base fuel is patterned 
after the reformulated gasoline summer baseline fuel as specified in CAA 
section

[[Page 35]]

211(k)(10)(B)(i). The specifications and blending tolerances for the 
gasoline base fuel are listed in table F94-1. The additive types which 
shall be required and/or permissible in the gasoline base fuel are 
listed in table 1 as well.

               Table F94-1--Gasoline Base Fuel Properties
------------------------------------------------------------------------
 
------------------------------------------------------------------------
API Gravity..................................  57.40.3
Sulfur, ppm..................................  33925
Benzene, vol%................................  1.530.3
RVP, psi.....................................  8.70.3
Octane, (R + M)/2............................  87.30.5
Distillation Parameters:
  10%, [deg]F................................  1285
  50%, [deg]F................................  2185
  90%, [deg]F................................  3305
Aromatics, vol%..............................  32.02.7
Olefins, vol%................................  9.22.5
Saturates, vol%..............................  58.82.0
Additive Types:
  Required...................................  Deposit Control
                                               Corrosion Inhibitor
                                               Demulsifier
                                               Anti-oxidant
                                               Metal Deactivator
  Permissible................................  Anti-static
------------------------------------------------------------------------

    (2) The additive components of the gasoline base fuel shall contain 
compounds comprised of no elements other than carbon, hydrogen, oxygen, 
nitrogen, and sulfur. Additives shall be used at the minimum 
concentration needed to perform effectively in the gasoline base fuel. 
In no case shall their concentration in the base fuel exceed the maximum 
concentration recommended by the additive manufacturer. The increment of 
sulfur contributed to the formulation by any additive shall not exceed 
15 parts per million sulfur by weight and shall not cause the gasoline 
base fuel to exceed the sulfur specifications in table F94-1 of this 
section.
    (c) Diesel Base Fuel. (1) The diesel base fuel shall be a 2 diesel 
fuel having the properties and blending tolerances shown in table F94-2 
of this section. The additive types which shall be permissible in diesel 
base fuel are presented in table F94-2 as well.

                Table F94-2--Diesel Base Fuel Properties
------------------------------------------------------------------------
 
------------------------------------------------------------------------
API Gravity..................................  331
Sulfur, wt%..................................  0.050.0025
Cetane Number................................  45.22
Cetane Index.................................  45.72
Distillation Parameters:
  10%, [deg]F................................  4335
  50%, [deg]F................................  5165
  90%, [deg]F................................  6065
Aromatics, vol%..............................  38.42.7
Olefins, vol%................................  1.50.4
Saturates, vol%..............................  60.12.0
Additive Types:
  Required...................................  Corrosion Inhibitor
                                               Demulsifier
                                               Anti-oxidant
                                               Metal Deactivator
  Permitted..................................  Anti-static
                                               Flow Improver
  Not Permitted..............................  Deposit Control
------------------------------------------------------------------------

    (2) The additive components of the diesel base fuel shall contain 
compounds comprised of no elements other than carbon, hydrogen, oxygen, 
nitrogen, and sulfur. Additives shall be used at the minimum 
concentration needed to perform effectively in the diesel base fuel. In 
no case shall their concentration in the base fuel exceed the maximum 
concentration recommended by the additive manufacturer. The increment of 
sulfur contributed to the base fuel by additives shall not cause the 
diesel base fuel to exceed the sulfur specifications in table F94-2 of 
this section.
    (d) Methanol Base Fuels. (1) The methanol base fuels shall contain 
no elements other than carbon, hydrogen, oxygen, nitrogen, sulfur, and 
chlorine.
    (2) The M100 base fuel shall consist of 100 percent by volume 
chemical grade methanol.
    (3) The M85 base fuel is to contain 85 percent by volume chemical 
grade methanol, blended with 15 percent by volume gasoline base fuel 
meeting the gasoline base fuel specifications outlined in paragraph 
(b)(1) of this section. Manufacturers shall ensure the methanol 
compatibility of lubricating oils as well as fuel additives used in the 
gasoline portion of the M85 base fuel.
    (4) The methanol base fuels shall meet the specifications listed in 
table F94-3.

               Table F94-3--Methanol Base Fuel Properties
------------------------------------------------------------------------
 
------------------------------------------------------------------------
M100:
    Chemical Grade MeOH, vol%..................................      100
    Chlorine (as chlorides), wt%, max..........................   0.0001
    Water, wt%, max............................................      0.5
    Sulfur, wt%, max...........................................    0.002
M85
    Chemical Grade MeOH, vol%,.................................       85
    Gasoline Base Fuel, vol%...................................       15
    Chlorine (as chlorides), wt%, max..........................   0.0001
    Water, wt%, max............................................      0.5

[[Page 36]]

 
    Sulfur, wt%, max...........................................    0.004
------------------------------------------------------------------------

    (e) Ethanol Base Fuel. (1) The ethanol base fuel, E85, shall contain 
no elements other than carbon, hydrogen, oxygen, nitrogen, sulfur, 
chlorine, and copper.
    (2) The ethanol base fuel shall contain 85 percent by volume 
chemical grade ethanol, blended with 15 percent by volume gasoline base 
fuel that meets the specifications listed in paragraph (b)(1) of this 
section. Additives used in the gasoline component of E85 shall be 
ethanol-compatible.
    (3) The ethanol base fuel shall meet the specifications listed in 
table F94-4.

                Table F94-4--Ethanol Base Fuel Properties
------------------------------------------------------------------------
 
------------------------------------------------------------------------
E85:
    Chemical Grade EtOH, vol%, min.............................       85
    Gasoline Base Fuel, vol%...................................       15
    Chlorine (as chloride), wt%, max...........................   0.0004
    Copper, mg/L, max..........................................     0.07
    Water, wt%, max............................................      0.5
    Sulfur, wt%, max...........................................    0.004
------------------------------------------------------------------------

    (f) Methane Base Fuel. (1) The methane base fuel is a gaseous motor 
vehicle fuel marketed commercially as compressed natural gas (CNG), 
whose primary constituent is methane.
    (2) The methane base fuel shall contain no elements other than 
carbon, hydrogen, oxygen, nitrogen, and sulfur. The fuel shall contain 
an odorant additive for leak detection purposes. The added odorant shall 
be used at a level such that, at ambient conditions, the fuel must have 
a distinctive odor potent enough for its presence to be detected down to 
a concentration in air of not over \1/5\ (one-fifth) of the lower limit 
of flammability. After addition of the odorant, the methane base fuel 
shall contain no more than 16 ppm sulfur by volume.
    (3) The methane base fuel shall meet the specifications listed in 
table F94-5.

              Table F94-5--Methane Base Fuel Specifications
------------------------------------------------------------------------
 
------------------------------------------------------------------------
Methane, mole%, min.............................................    89.0
Ethane, mole%, max..............................................     4.5
Propane and higher HC, mole%, max...............................     2.3
C6 and higher HC, mole%, max....................................     0.2
Oxygen, mole%, max..............................................     0.6
Sulfur (including odorant additive) ppmv, max...................      16
Inert gases:
  Sum of CO2 and N2, mole%, max.................................     4.0
------------------------------------------------------------------------

    (g) Propane Base Fuel. (1) The propane base fuel is a gaseous motor 
vehicle fuel, marketed commercially as liquified petroleum gas (LPG), 
whose primary constituent is propane.
    (2) The propane base fuel may contain no elements other than carbon, 
hydrogen, oxygen, nitrogen, and sulfur. The fuel shall contain an 
odorant additive for leak detection purposes. The added odorant shall be 
used at a level such that at ambient conditions the fuel must have a 
distinctive odor potent enough for its presence to be detected down to a 
concentration in air of not over \1/5\ (one-fifth) of the lower limit of 
flammability. After addition of the odorant, the propane base fuel shall 
contain no more than 120 ppm sulfur by weight.
    (3) The propane base fuel shall meet the specifications listed in 
table F94-6.

              Table F94-6--Propane Base Fuel Specifications
------------------------------------------------------------------------
 
------------------------------------------------------------------------
Vapor pressure at 100-F, psig, max..............................     208
Evaporative temperature, 95%, [deg]F, max.......................     -37
Propane, vol%, min..............................................    92.5
Propylene, vol%, max............................................     5.0
Butane and heavier, vol%, max...................................     2.5
Residue-evaporation of 100mL, max, mL...........................    0.05
Sulfur (including odorant additive) ppmw, max...................     123
------------------------------------------------------------------------



Sec.  79.56  Fuel and fuel additive grouping system.

    (a) Manufacturers of fuels and fuel additives are allowed to satisfy 
the testing requirements in Sec. Sec.  79.52, 79.53, and 79.54 and the 
associated reporting requirements in Sec.  79.59 on an individual or 
group basis, provided that such products meet the criteria in this 
section for enrollment in the same fuel/additive group. However, each 
manufacturer of a fuel or fuel additive must individually comply with 
the notification requirements of Sec.  79.59(b). Further, if a 
manufacturer elects to comply by participation in a group, each 
manufacturer continues to be individually subject to the information 
requirements of this subpart.

[[Page 37]]

    (1) The use of the grouping provision to comply with Tier 1 and Tier 
2 testing requirements is voluntary. No manufacturer is prohibited from 
testing and submitting its own data for its own product registration, 
despite its qualification for membership in a particular group.
    (2) The only groups permitted are those established in this section.
    (b) Each manufacturer who chooses to enroll a fuel or fuel additive 
in a group of similar fuels and fuel additives as designated in this 
section may satisfy the registration requirements through a group 
submission of jointly-sponsored testing and analysis conducted on a 
product which is representative of all products in that group, provided 
that the group representative is chosen according to the specifications 
in this section.
    (1) The health effects information submitted by a group shall be 
considered applicable to all fuels and fuel additives in the group. A 
fuel or fuel additive manufacturer who has chosen to participate in a 
group may subsequently choose to perform testing of such fuel or fuel 
additive on an individual basis; however, until such independent 
registration information has been received and reviewed by EPA, the 
information initially submitted by the group on behalf of the 
manufacturer's fuel or fuel additive shall be considered applicable and 
valid for that fuel or fuel additive. It could therefore be used to 
support requirements for further testing under the provisions of Tier 3 
or to support regulatory decisions affecting that fuel or fuel additive.
    (2) Manufacturers are responsible for determining the appropriate 
groups for their products according to the criteria in this section and 
for enrolling their products into those groups under industry-sponsored 
or other independent brokering arrangements.
    (3) Manufacturers who enroll a fuel or fuel additive into a group 
shall share the applicable costs according to appropriate arrangements 
established by the group. The organization and administration of group 
functions and the development of cost-sharing arrangements are the 
responsibility of the participating manufacturers. If manufacturers are 
unable to agree on fair and equitable cost sharing arrangements and if 
such dispute is referred by one or more manufacturers to EPA for 
resolution, then the provisions in Sec.  79.56(c) (1) and (2) shall 
apply.
    (c) In complying with the registration requirements for a given fuel 
or fuel additive, notwithstanding the enrollment of such fuel or 
additive in a group, a manufacturer may make use of available 
information for any product which conforms to the same grouping criteria 
as the given product. If, for this purpose, a manufacturer wishes to 
rely upon the information previously submitted by another manufacturer 
(or group of manufacturers) for registration of a similar product (or 
group of products), then the previous submitter is entitled to 
reimbursement by the manufacturer for an appropriate portion of the 
applicable costs incurred to obtain and report such information. Such 
entitlement shall remain in effect for a period of fifteen years 
following the date on which the original information was submitted. 
Pursuant to Sec.  79.59(b)(4)(ii), the manufacturer who relies on 
previously-submitted registration data shall certify to EPA that the 
original submitter has been notified and that appropriate reimbursement 
arrangements have been made.
    (1) When private efforts have failed to resolve a dispute about a 
fair amount or method of cost-sharing or reimbursement for testing costs 
incurred under this subpart, then any party involved in that dispute may 
initiate a hearing by filing two signed copies of a request for a 
hearing with a regional office of the American Arbitration Association 
and mailing a copy of the request to EPA. A copy must also be sent to 
each person from whom the filing party seeks reimbursement or who seeks 
reimbursement from that party. The information and fees to be included 
in the request for hearing are specified in 40 CFR 791.20(b) and (c).
    (2) Additional procedures and requirements governing the hearing 
process are those specified in 40 CFR 791.22 through 791.50, 791.60, 
791.85, and 791.105, excluding 40 CFR 791.39(a)(3) and 791.48(d).

[[Page 38]]

    (d) Basis for classification. (1) Rather than segregating fuels and 
fuel additives into separate groups, the grouping system applies the 
same grouping criteria and creates a single set of groups applicable 
both to fuels and fuel additives.
    (2) Fuels shall be classified pursuant to Sec.  79.56(e) into 
categories and groups of similar fuels and fuel additives according to 
the components and characteristics of such fuels in their uncombusted 
state. The classification of a fuel product must take into account the 
components of all bulk fuel additives which are listed in the 
registration application or basic registration data submitted for the 
fuel product.
    (3) Fuel additives shall be classified pursuant to Sec.  79.56(e) 
into categories and groups of similar fuels and fuel additives according 
to the components and characteristics of the respective uncombusted 
additive/base fuel mixture pursuant to Sec.  79.51(h)(1).
    (4) In determining the category and group to which a fuel or fuel 
additive belongs, impurities present in trace amounts shall be ignored 
unless otherwise noted. Impurities are those substances which are 
present through contamination or which remain in the fuel or additive 
naturally after processing is completed.
    (5) Reference standards. (i) American Society for Testing and 
Materials (ASTM) standard D 4814-93a, ``Standard Specification for 
Automotive Spark-Ignition Engine Fuel'', used to define the general 
characteristics of gasoline fuels (paragraph (e)(3)(i)(A)(3) of this 
section) and ASTM standard D 975-93, ``Standard Specification for Diesel 
Fuel Oils'', used to define the general characteristics of diesel fuels 
(paragraph (e)(3)(ii)(A)(3) of this section) have been incorporated by 
reference.
    (ii) This incorporation by reference was approved by the Director of 
the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 
51. Copies may be obtained from the American Society for Testing and 
Materials (ASTM), 1916 Race Street, Philadelphia, PA 19103. Copies may 
be inspected at U.S. EPA, OAR, 401 M Street SW., Washington, DC 20460 or 
at the National Archives and Records Administration (NARA). For 
information on the availability of this material at NARA, call 202-741-
6030, or go to: http://www.archives.gov/federal_register/
code_of_federal_regulations/ibr_locations.html.
    (e) Grouping criteria. The grouping system is represented by a 
matrix of three fuel/additive categories within six specified fuel 
families (see table F94-7, Grouping System for Fuels and Fuel 
Additives). Each category may include one or more groups. Within each 
group, a representative may be designated based on the criteria in this 
section and joint registration information may be developed and 
submitted for member fuels and fuel additives.

[[Page 39]]



                                                Table F94-7--Grouping System for Fuels and Fuel Additives
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                        Conventional Fuel Families                                   Alternative Fuel Families
                                 -----------------------------------------------------------------------------------------------------------------------
            Category                                                                                              Methane (CNG, LNG)
                                     Gasoline (A)         Diesel (B)         Methanol (C)         Ethanol (D)             (E)          Propane (LPG) (F)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Baseline........................  One group           One group           Two groups: (1)     One group           One group           One group
                                   represented by      represented by      M100 group          (includes ethanol-  (includes both      represented by
                                   gasoline base       diesel base fuel.   (includes           gasoline            CNG and LNG),       LPG base fuel.
                                   fuel.                                   methanol-gasoline   formulations with   represented by
                                                                           formulations with   at least 50%        CNG base fuel.
                                                                           at least 96%        ethanol)
                                                                           methanol)           represented by
                                                                           represented by      E85 base fuel.
                                                                           M100 base fuel
                                                                           (2) M85 (includes
                                                                           methanol-gasoline
                                                                           formulations with
                                                                           50-95% methanol)
                                                                           represented by
                                                                           M85 base fuel.
Non-baseline....................  One group for each  One group for each  One group for each  One group for each  One group to        One group to
                                   gasoline-           oxygen-             individual non-     individual non-     include methane     include propane
                                   oxygenate blend     contributing        methanol, non-      ethanol, non-       formulations        formulations
                                   or each gasoline-   compound or class   gasoline            gasoline            exceeding the       exceeding the
                                   methanol/co-        of compounds; one   component and one   component and one   specified limit     specified limit
                                   solvent blend;      group for each      group for each      group for each      for non-methane     for butane and
                                   one group for       synthetic crude-    unique              unique              hydrocarbons.       higher
                                   each synthetic      derived fuel.       combination of      combination of                          hydrocarbons.
                                   crude-derived                           such components.    such components.
                                   fuel.
Atypical........................  One group for each  One group for each  One group for each  One group for each  One group for each  One group for each
                                   atypical element/   atypical element/   atypical element/   atypical element/   atypical element/   atypical element/
                                   characteristic,     characteristic,     characteristic,     characteristic,     characteristic,     characteristic,
                                   or unique           or unique           or unique           or unique           or unique           or unique
                                   combination of      combination of      combination of      combination of      combination of      combination of
                                   atypical elements/  atypical elements/  atypical elements/  atypical elements/  atypical elements/  atypical elements/
                                   characteristics.    characteristics.    characteristics.    characteristics.    characteristics.    characteristics.
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (1) Fuel families. Each of the following six fuel families (Table 
F94-7, columns A-F) includes fuels of the type referenced in the name of 
the family as well as bulk and aftermarket additives which are intended 
for use in those fuels. When applied to fuel additives, the criteria in 
these descriptions refer to the associated additive/base fuel mixture, 
pursuant to Sec.  79.51(h)(1). One or more base fuel formulations are 
specified for each fuel family pursuant to Sec.  79.55.
    (i) The Gasoline Family includes fuels composed of more than 50 
percent gasoline by volume and their associated fuel additives. The base 
fuel for this family is specified in Sec.  79.55(b).
    (ii) The Diesel Family includes fuels composed of more than 50 
percent diesel fuel by volume and their associated fuel additives. The 
Diesel fuel family includes both Diesel 1 and Diesel 2 formulations. 
The base fuel for this family is specified in Sec.  79.55(c).
    (iii) The Methanol Family includes fuels composed of at least 50 
percent methanol by volume and their associated fuel additives. The M100 
and M85 base fuels are specified in Sec.  79.55(d).
    (iv) The Ethanol Family includes fuels composed of at least 50 
percent ethanol by volume and their associated fuel additives. The base 
fuel for this family is E85 as specified in Sec.  79.55(e).
    (v) The Methane Family includes compressed natural gas (CNG) and 
liquefied natural gas (LNG) fuels containing at least 50 mole percent 
methane and their associated fuel additives. The base fuel for the 
family is a CNG formulation specified in Sec.  79.55(f).

[[Page 40]]

    (vi) The Propane Family includes propane fuels containing at least 
50 percent propane by volume and their associated fuel additives. The 
base fuel for this family is a liquefied petroleum gas (LPG) as 
specified in Sec.  79.55(g).
    (vii) A manufacturer seeking registration for formulation(s) which 
do not fit the criteria for inclusion in any of the fuel families 
described in this section shall contact EPA at the address in Sec.  
79.59(a)(1) for further guidance in classifying and testing such 
formulation(s).
    (2) Fuel/additive categories. Fuel/additive categories (Table F94-7, 
rows 1-3) are subdivisions of fuel families which represent the degree 
to which fuels and fuel additives in the family resemble the base 
fuel(s) designated for the family. Three general category types are 
defined in this section. When applied to fuel additives, the criteria in 
these descriptions refer to the associated additive/base fuel mixture, 
pursuant to Sec.  79.51(h)(1).
    (i) Baseline categories consist of fuels and fuel additives which 
contain no elements other than those permitted in the base fuel for the 
respective fuel family and conform to specified limitations on the 
amounts of certain components or characteristics applicable to that fuel 
family.
    (ii) Non-Baseline Categories consist of fuels and fuel additives 
which contain no elements other than those permitted in the base fuel 
for the respective fuel family, but which exceed one or more of the 
limitations for certain specified components or characteristics 
applicable to baseline formulations in that fuel family.
    (iii) Atypical Categories consist of fuels and fuel additives which 
contain elements or classes of compounds other than those permitted in 
the base fuel for the respective fuel family or which otherwise do not 
meet the criteria for either baseline or non-baseline formulations in 
that fuel family. A fuel or fuel additive product having both non-
baseline and atypical characteristics pursuant to Sec.  79.56(e)(3), 
shall be considered to be an atypical product.
    (3) This section defines the specific categories applicable to each 
fuel family. When applied to fuel additives, the criteria in these 
descriptions refer to the associated additive/base fuel mixture, 
pursuant to Sec.  79.51(h)(1).
    (i) Gasoline Categories. (A) The Baseline Gasoline category contains 
gasoline fuels and associated additives which satisfy all of the 
following criteria:
    (1) Contain no elements other than carbon, hydrogen, oxygen, 
nitrogen, and/or sulfur.
    (2) Contain less than 1.5 percent oxygen by weight.
    (3) Sulfur concentration is limited to 1000 ppm per the 
specifications cited in the following paragraph.
    (4) Possess the physical and chemical characteristics of unleaded 
gasoline as specified by ASTM standard D 4814-93a (incorporated by 
reference, pursuant to paragraph (d)(5) of this section), in at least 
one Seasonal and Geographical Volatility Class.
    (5) Derived only from conventional petroleum, heavy oil deposits, 
coal, tar sands, and/or oil sands.
    (B) The Non-Baseline Gasoline category is comprised of gasoline 
fuels and associated additives which conform to the specifications in 
paragraph (e)(3)(i)(A) of this section for the Baseline Gasoline 
category except that they contain 1.5 percent or more oxygen by weight 
and/or may be derived from sources other than those listed in paragraph 
(e)(3)(i)(A)(5) of this section.
    (C) The Atypical Gasoline category is comprised of gasoline fuels 
and associated additives which contain one or more elements other than 
carbon, hydrogen, oxygen, nitrogen, and sulfur.
    (ii) Diesel Categories. (A) The Baseline Diesel category is 
comprised of diesel fuels and associated additives which satisfy all of 
the following criteria:
    (1) Contain no elements other than carbon, hydrogen, oxygen, 
nitrogen, and/or sulfur. Pursuant to 40 CFR 80.29, highway diesel sold 
after October 1, 1993 shall contain 0.05 percent or less sulfur by 
weight;
    (2) Contain less than 1.0 percent oxygen by weight;
    (3) Diesel formulations containing more than 0.05 percent sulfur by 
weight are precluded by 40 CFR 80.29;
    (4) Possess the characteristics of diesel fuel as specified by ASTM 
standard D 975-93 (incorporated by reference,

[[Page 41]]

pursuant to paragraph (d)(5) of this section); and
    (5) Derived only from conventional petroleum, heavy oil deposits, 
coal, tar sands, and/or oil sands.
    (B) The Non-Baseline Diesel category is comprised of diesel fuels 
and associated additives which conform to the specifications in 
paragraph (e)(3)(ii)(A) of this section for the Baseline Diesel category 
except that they contain 1.0 percent or more oxygen by weight and/or may 
be derived from sources other than those listed in paragraph 
(e)(3)(ii)(A)(5) of this section.
    (C) The Atypical Diesel category is comprised of diesel fuels and 
associated additives which contain one or more elements other than 
carbon, hydrogen, oxygen, nitrogen, and sulfur.
    (iii) Methanol categories. (A) The Baseline Methanol category is 
comprised of methanol fuels and associated additives which contain at 
least 50 percent methanol by volume, no more than 4.0 percent by volume 
of substances other than methanol and gasoline, and no elements other 
than carbon, hydrogen, oxygen, nitrogen, sulfur, and/or chlorine. 
Baseline methanol shall contain no more than 0.004 percent by weight of 
sulfur or 0.0001 percent by weight of chlorine.
    (B) The Non-Baseline Methanol category is comprised of fuel blends 
which contain at least 50 percent methanol by volume, more than 4.0 
percent by volume of a substance(s) other than methanol and gasoline, 
and meet the baseline limitations on elemental composition in paragraph 
(e)(3)(iii)(A) of this section.
    (C) The Atypical Methanol category consists of methanol fuels and 
associated additives which do not meet the criteria for either the 
Baseline or the Non-Baseline Methanol category.
    (iv) Ethanol categories. (A) The Baseline Ethanol category is 
comprised of ethanol fuels and associated additives which contain at 
least 50 percent ethanol by volume, no more than five (5) percent by 
volume of substances other than ethanol and gasoline, and no elements 
other than carbon, hydrogen, oxygen, nitrogen, sulfur, chlorine, and 
copper. Baseline ethanol formulations shall contain no more than 0.004 
percent by weight of sulfur, 0.0004 percent by weight of chlorine, and/
or 0.07 mg/L of copper.
    (B) The Non-Baseline Ethanol category is comprised of fuel blends 
which contain at least 50 percent ethanol by volume, more than five (5) 
percent by volume of a substance(s) other than ethanol and gasoline, and 
meet the baseline limitations on elemental composition in paragraph 
(e)(3)(iv)(A) of this section.
    (C) The Atypical Ethanol category consists of ethanol fuels and 
associated additives which do not meet the criteria for either the 
Baseline or the Non-Baseline Ethanol categories.
    (v) Methane categories. (A) The Baseline Methane category is 
comprised of methane fuels and associated additives (including at least 
an odorant additive) which contain no elements other than carbon, 
hydrogen, oxygen, nitrogen, and/or sulfur, and contain no more than 20 
mole percent non-methane hydrocarbons. Baseline methane formulations 
shall not contain more than 16 ppm by volume of sulfur, including any 
sulfur which may be contributed by the odorant additive.
    (B) The Non-Baseline Methane category consists of methane fuels and 
associated additives which conform to the specifications in paragraph 
(e)(3)(v)(A) of this section for the Baseline Methane category except 
that they exceed 20 mole percent non-methane hydrocarbons.
    (C) The Atypical Methane category consists of methane fuels and 
associated additives which contain one or more elements other than 
carbon, hydrogen, oxygen, nitrogen, and/or sulfur, or exceed 16 ppm by 
volume of sulfur.
    (vi) Propane categories. (A) The Baseline Propane category is 
comprised of propane fuels and associated additives (including at least 
an odorant additive) which contain no elements other than carbon, 
hydrogen, oxygen, nitrogen, and/or sulfur, and contain no more than 20 
percent by volume non-propane hydrocarbons. Baseline Propane 
formulations shall not contain more than 123 ppm by weight of sulfur, 
including any sulfur which may be contributed by the odorant additive.
    (B) The Non-Baseline Propane category consists of propane fuels and 
associated additives which conform to

[[Page 42]]

the specifications in paragraph (e)(3)(vi)(A) of this section for the 
Baseline Propane category, except that they exceed the 20 percent by 
volume limit for butane and higher hydrocarbons.
    (C) The Atypical Propane category consists of propane fuels and 
associated additives which contain elements other than carbon, hydrogen, 
oxygen, nitrogen, and/or sulfur, or exceed 123 ppm by weight of sulfur.
    (4) Fuel/additive groups. Fuel/additive groups are subdivisions of 
the fuel/additive categories. One or more group(s) are defined within 
each category in each fuel family according to the presence of differing 
characteristics in the fuel or additive/base fuel mixture. For each 
group, one formulation (either a base fuel or a member fuel or additive 
product) is chosen to represent all the member products in the group in 
any tests required under this subpart. The section which follows 
describes the fuel/additive groups.
    (i) Baseline groups. (A) The Baseline Gasoline category comprises a 
single group. The gasoline base fuel specified in Sec.  79.55(b) shall 
serve as the representative of this group.
    (B) The Baseline Diesel category comprises a single group. The 
diesel base fuel specified in Sec.  79.55(c) shall serve as the 
representative of this group.
    (C) The Baseline Methanol category includes two groups: M100 and 
M85. The M100 group consists of methanol-gasoline formulations 
containing at least 96 percent methanol by volume. These formulations 
must contain odorants and bitterants (limited in elemental composition 
to carbon, hydrogen, oxygen, nitrogen, sulfur, and chlorine) for 
prevention of purposeful or inadvertent consumption. The M100 base fuel 
specified in Sec.  79.55(d) shall serve as the representative for this 
group. The M85 group consists of methanol-gasoline formulations 
containing at least 50 percent by volume but less than 96 percent by 
volume methanol. The M85 base fuel specified in Sec.  79.55(d) shall 
serve as the representative of this group.
    (D) The Baseline Ethanol category comprises a single group. The E85 
base fuel specified in Sec.  79.55(e) shall serve as the representative 
of this group.
    (E) The Baseline Methane category comprises a single group. The CNG 
base fuel specified in Sec.  79.55(f) shall serve as the representative 
of this group.
    (F) The Baseline Propane category comprises a single group. The LPG 
base fuel specified in Sec.  79.55(g) shall serve as the representative 
of this group.
    (ii) Non-baseline groups--(A) Non-Baseline Gasoline. The Non-
Baseline gasoline fuels and associated additives shall sort into groups 
according to the following criteria:
    (1) For gasoline fuel and additive products which contain 1.5 
percent oxygen by weight or more, a separate non-baseline gasoline group 
shall be defined by each oxygenate compound or methanol/co-solvent blend 
listed as a component in the registration application or basic 
registration data of any such fuel or additive.
    (i) Examples of oxygenates occurring in non-baseline gasoline 
formulations include ethanol, methyl tertiary butyl ether (MTBE), ethyl 
tertiary butyl ether (ETBE), tertiary amyl methyl ether (TAME), 
diisopropyl ether (DIPE), dimethyl ether (DME), tertiary amyl ethyl 
ether (TAEE), and any other compound(s) which increase the oxygen 
content of the gasoline formulation. A separate non-baseline gasoline 
group is defined for each such oxygenating compound.
    (ii) Each unique methanol and co-solvent combination (whether one, 
two, or more additional oxygenate compounds) used in a non-baseline fuel 
shall also define a separate group. An oxygenate compound used as a co-
solvent for methanol in a non-baseline gasoline formulation must be 
identified as such in its registration. If the oxygenate is not 
identified as a methanol co-solvent, then the compound shall be regarded 
by EPA as defining a separate non-baseline gasoline group. Examples of 
methanol/co-solvent combinations occurring in non-baseline gasoline 
formulations include methanol/isopropyl alcohol, methanol/butanol, and 
methanol with alcohols up to C8/octanol (Octamix).
    (iii) For each such group, the representative to be used in testing 
shall

[[Page 43]]

be a formulation consisting of the gasoline base fuel blended with the 
relevant oxygenate compound (or methanol/co-solvent combination) in an 
amount equivalent to the highest actual or recommended concentration-in-
use of the oxygenate (or methanol/co-solvent combination) recorded in 
the basic registration data of any member fuel or additive product. In 
the event that two or more products in the same group contain the same 
and highest amount of the oxygenate or methanol/co-solvent blend, then 
the representative shall be chosen at random for such candidate 
products.
    (2) An oxygenate compound or methanol/co-solvent combination to be 
blended with the gasoline base fuel for testing purposes shall be 
chemical-grade quality, at a minimum, and shall not contain a 
significant amount of other contaminating oxygenate compounds.
    (3) Separate non-baseline gasoline groups shall also be defined for 
gasoline formulations derived from each particular petroleum source not 
listed in paragraph (e)(3)(i)(A)(5) of this section.
    (i) Such groups may include, but are not limited to, those derived 
from shale, used oil, waste plastics, and other recycled chemical/
petrochemical products.
    (4) Pursuant to Sec.  79.51(i), non-baseline gasoline products may 
belong to more than one fuel/additive group.
    (B) Non-Baseline Diesel. The Non-Baseline diesel fuels and 
associated additives shall sort into groups according to the following 
criteria:
    (1) For diesel fuel and additive products which contain 1.0 percent 
or more oxygen by weight in the form of alcohol(s) and/or ether(s):
    (i) A separate non-baseline diesel group shall be defined by each 
individual alcohol or ether listed as a component in the registration 
application or basic registration data of any such fuel or additive.
    (ii) For each such group, the representative to be used in testing 
shall be a formulation consisting of the diesel base fuel blended with 
the relevant alcohol or ether in an amount equivalent to the highest 
actual or recommended concentration-in-use of the alcohol or ether 
recorded in the basic registration data of any member fuel or additive 
product.
    (2) A separate non-baseline diesel group is also defined for each of 
the following classes of oxygenating compounds: mixed nitroso-compounds; 
mixed nitro-compounds; mixed alkyl nitrates; mixed alkyl nitrites; 
peroxides; furans; mixed alkyl esters of plant and/or animal origin 
(biodiesel). For each such group, the representative to be used in 
testing shall be formulated as follows:
    (i) From the class of compounds which defines the group, a 
particular oxygenate compound shall be chosen from among all such 
compounds recorded in the registration application or basic registration 
data of any fuel or additive in the group.
    (ii) The selected compound shall be the one recorded in any member 
product's registration application with the highest actual or 
recommended maximum concentration-in-use.
    (iii) In the event that two or more oxygenate compounds in the 
relevant class have the highest recorded concentration-in-use, then the 
oxygenate compound to be used in the group representative shall be 
chosen at random from the qualifying candidate compounds.
    (iv) The compound thus selected shall be the group representative, 
and shall be used in testing at the following concentration:
    (A) For biodiesel groups, the representative shall be 100 percent 
biodiesel fuel.
    (B) Otherwise, the group representative shall be the selected 
compound mixed into diesel base fuel at the maximum recommended 
concentration-in-use.
    (3) Separate non-baseline diesel groups shall also be defined for 
diesel formulations derived from each particular petroleum source not 
listed in paragraph (e)(3)(i)(A)(5) of this section.
    (i) Such groups may include, but are not limited to, those derived 
from shale, used oil, waste plastics, and other recycled chemical/
petrochemical products.
    (ii) In any such group, the first product to be registered or to 
apply for

[[Page 44]]

EPA registration shall be the representative of that group. If two or 
more products are registered or apply for first registration 
simultaneously, then the representative shall be chosen by a random 
method from among such candidate products.
    (4) Pursuant to Sec.  79.51(i), non-baseline diesel products may 
belong to more than one fuel/additive group.
    (C) Non-baseline methanol. The Non-Baseline methanol formulations 
are sorted into groups based on the non-methanol, non-gasoline 
component(s) of the blended fuel. Each such component occurring 
separately and each unique combination of such components shall define a 
separate group.
    (1) The representative of each such non-baseline methanol group 
shall be the group member with the highest percent by volume of non-
methanol, non-gasoline component(s).
    (2) In case two or more such members have the same and highest 
concentration of non-methanol, non-gasoline component(s), the 
representative of the group shall be chosen at random from among such 
equivalent member products.
    (D) Non-Baseline Ethanol. The Non-Baseline ethanol formulations are 
sorted into groups based on the non-ethanol, non-gasoline component(s) 
of the blended fuel. Each such component occurring separately and each 
unique combination of such components shall define a separate group.
    (1) The representative of each such non-baseline ethanol group shall 
be the group member with the highest percent by volume of non-ethanol, 
non-gasoline component(s).
    (2) In case two or more such members have the same and highest 
concentration of non-ethanol, non-gasoline component(s), the 
representative of the group shall be chosen at random from among such 
equivalent member products.
    (E) Non-Baseline Methane. The Non-Baseline methane category consists 
of one group. The group representative shall be the member fuel or fuel/
additive formulation containing the highest concentration-in-use of non-
methane hydrocarbons. If two or more member products have the same and 
the highest concentration-in-use, then the representative shall be 
chosen at random from such products.
    (F) Non-baseline propane. The Non-Baseline propane category consists 
of one group. The group representative shall be the member fuel or fuel/
additive formulation containing the highest concentration-in-use of 
butane and higher hydrocarbons. If two or more products have the same 
and the highest concentration-in-use, then the representative shall be 
chosen at random from such products.
    (iii) Atypical groups. (A) As defined for each individual fuel 
family in Sec.  79.56(e)(3), fuels and additives meeting any one of the 
following criteria are considered atypical.
    (1) Gasoline Atypical fuels and additives contain one or more 
elements in addition to carbon, hydrogen, oxygen, nitrogen, and sulfur.
    (2) Diesel Atypical fuels and additives contain one or more element 
in addition to carbon, hydrogen, oxygen, nitrogen, and sulfur.
    (3) Methanol Atypical fuels and additives contain:
    (i) one or more element in addition to carbon, hydrogen, oxygen, 
nitrogen, sulfur, and chlorine, and/or
    (ii) sulfur in excess of 0.004 percent by weight, and/or
    (iii) chlorine in excess of 0.0001 percent by weight.
    (4) Ethanol Atypical fuels and additives contain:
    (i) one or more element in addition to carbon, hydrogen, oxygen, 
nitrogen, sulfur, chlorine, and copper, and/or
    (ii) sulfur in excess of 0.004 percent by weight, and/or
    (iii) contain chlorine (as chloride) in excess of 0.0004 percent by 
weight, and/or
    (iv) contain copper in excess of 0.07 mg/L.
    (5) Methane Atypical fuels and additives contain:
    (i) one or more element in addition to carbon, hydrogen, oxygen, 
nitrogen, and sulfur, and/or
    (ii) sulfur in excess of 16 ppm by volume.
    (6) Propane Atypical fuels and additives contain:
    (i) one or more element in addition to carbon, hydrogen, oxygen, 
nitrogen, and sulfur, and/or

[[Page 45]]

    (ii) sulfur in excess of 123 ppm by weight.
    (B) General rules for sorting these atypical fuels and additives 
into separate groups are as follows:
    (1) Pursuant to Sec.  79.51(j), a given atypical product may belong 
to more than one atypical group.
    (2) Fuels and additives in different fuel families may not be 
grouped together, even if they contain the same atypical element(s) or 
other atypical characteristic(s).
    (3) A fuel or additive containing one or more atypical elements 
attached to a polymer compound must be sorted into a separate group from 
atypical fuels or fuel additives containing the same atypical element(s) 
in non-polymer form. However, the occurrence of a polymer compound which 
does not contain an atypical element does not affect the grouping of a 
fuel or additive.
    (C) Specific rules for sorting each family's atypical fuels and 
additives into separate groups, and for choosing each such group's 
representative for testing, are as follows:
    (1) A separate group is created for each atypical element (or other 
atypical characteristic) occurring separately, i.e., in the absence of 
any other atypical element or characteristic, in one or more fuels and/
or additives within a given fuel family.
    (i) Consistent with the basic grouping guidelines provided in Sec.  
79.56(d), a fuel product which is classified as atypical because its 
basic registration data or application lists a bulk additive containing 
an atypical characteristic, may be grouped with that additive and/or 
with other fuels and additives containing the same atypical 
characteristic.
    (ii) Within a group of products containing only one atypical element 
or characteristic, the fuel or additive/base fuel mixture with the 
highest concentration-in-use or recommended concentration-in-use of the 
atypical element or characteristic shall be the designated 
representative of that group. In the event that two or more fuels or 
additive/base fuel mixtures within the group contain the same and 
highest concentration of the single atypical element or characteristic, 
then the group representative shall be selected by a random method from 
among such candidate products.
    (2) A separate group is also created for each unique combination of 
atypical elements (and/or other specified atypical characteristics) 
occurring together in one or more fuels and/or additives within a given 
fuel family.
    (i) Consistent with the basic grouping guidelines provided in Sec.  
79.56(d), a fuel which is classified as atypical because its basic 
registration data lists one bulk additive containing two or more 
atypical characteristics, may be grouped with that additive and/or with 
other fuels and/or additives containing the same combination of atypical 
characteristics. Grouping of fuels containing more than one atypical 
additive shall be guided by provisions of Sec.  79.51(j).
    (ii) Within a group of such products containing a unique combination 
of two or more atypical elements or characteristics, the designated 
representative shall be the product within the group which contains the 
highest total concentration of the atypical elements or characteristics.
    (iii) In the event that two or more products within a given atypical 
group contain the same and highest concentration of the same atypical 
elements or characteristics then, among such candidate products, the 
designated representative shall be the product which, first, has the 
highest total concentration of metals, followed in order by highest 
total concentration of halogens, highest total concentration of other 
atypical elements (including sulfur concentration, as applicable), 
highest total concentration of polymers containing atypical elements, 
and, lastly, highest total concentration of oxygen.
    (iv) If two or more products have the same and highest concentration 
of the variable identified in the preceding paragraph, then, among such 
products, the one with the greatest concentration of the next highest 
variable on the list shall be the group representative.
    (v) This decision-making process shall continue until a single 
product is determined to be the representative. If two or more products 
remain tied at

[[Page 46]]

the end of this process, then the representative shall be chosen by a 
random method from among such remaining products.

[59 FR 33093, June 27, 1994, as amended at 62 FR 12571, Mar. 17, 1997]



Sec.  79.57  Emission generation.

    This section specifies the equipment and procedures that must be 
used in generating the emissions which are to be subjected to the 
characterization procedures and/or the biological tests specified in 
Sec. Sec.  79.52(b) and 79.53 of these regulations. When applicable, 
they may also be required in conjunction with testing under Sec. Sec.  
79.54 and 79.58(c). Additional requirements concerning emission 
generation, delivery, dilution, quality control, and safety practices 
are outlined in Sec.  79.61.
    (a) Vehicle and engine selection criteria. (1) All vehicles and 
engines used to generate emissions for testing a fuel or additive/fuel 
mixture must be new (i.e., never before titled) and placed into the 
program with less than 500 miles on the odometer or 12 hours on the 
engine chronometer. The vehicles and engines shall be unaltered from the 
specifications of the original equipment manufacturer.
    (2) The vehicle/engine type, vehicle/engine class, and vehicle/
engine subclass designated to generate emissions for a given fuel or 
additive shall be the same type, class, and subclass which, over the 
previous three years, has consumed the most gallons of fuel in the fuel 
family applicable to the given fuel or additive. No distinction shall be 
made between light-duty vehicles and light-duty trucks for purposes of 
this classification.
    (3) Within this vehicle/engine type, class, and subclass, the 
specific vehicles and engines acceptable for emission generation are 
those that represent the most common fuel metering system and the most 
common of the most important emission control system devices or 
characteristics with respect to emission reduction performance for the 
model year in which testing begins. These vehicles will be determined 
through a survey of the previous model year's vehicle/engine sales 
within the given subclass. These characteristics shall include, but need 
not be limited to, aftertreatment device(s), fuel aspiration, air 
injection, exhaust gas recirculation, and feedback type.
    (4) Within the applicable subclass, the five highest selling 
vehicle/engine models that contain the most common such equipment and 
characteristics shall be determined. Any of these five models of the 
current model year (at the time testing begins) may be selected for 
emission generation.
    (i) If one or more of the five models is not available for the 
current model year, the choice of model for emission generation shall be 
limited to those remaining among the five.
    (ii) If fewer than five models of the given vehicle/engine type are 
available for the current model year, all such models shall be eligible.
    (5) When the fuel or fuel additive undergoing testing is not 
commonly used or intended to be used in the vehicle/engine types 
prescribed by this selection procedure, or when rebuilding or alteration 
is required to obtain a suitable vehicle/engine for emission generation, 
the manufacturer may submit a request to EPA for a modification in test 
procedure requirements. Any such request must include objective test 
results which support the claim that a more appropriate vehicle/engine 
type is needed as well as a suggested substitute vehicle/engine type. 
The vehicle/engine selection in this case shall be approved by EPA prior 
to the start of testing.
    (6) Once a particular model has been chosen on which to test a fuel 
or additive product, all mileage accumulation and generation of 
emissions for characterization and biological testing of such product 
shall be conducted on that same model.
    (i) If the initial test vehicle/engine fails or must be replaced for 
any reason, emission generation shall continue with a second vehicle/
engine which is identical to, or resembles to the greatest extent 
possible, the initial test vehicle/engine. If more than one replacement 
vehicle/engine is necessary, all such vehicles/engines shall be 
identical, or resemble to the greatest extent possible, the initial test 
vehicle/engine.
    (ii) Manufacturers are encouraged to obtain, at the start of a test 
program,

[[Page 47]]

more than one emission generation vehicle/engine of the identical model, 
to ensure the availability of back-up emission generator(s). All backup 
vehicles/engines must be conditioned and must have their emissions fully 
characterized, as done for the initial test vehicle/engine, prior to 
their use as emission generators for biological testing. Alternating 
between such vehicles/engines regularly during the course of testing is 
permissible and advisable, particularly to allow regular maintenance on 
such vehicles/engines during prolonged health effects testing.
    (b) Vehicle/engine operation and maintenance. (1) For the purpose of 
generating combustion emissions from a fuel or additive/base fuel 
mixture for which the relevant class is light duty, either a light-duty 
vehicle shall be operated on a chassis dynamometer or a light-duty 
engine shall be operated on an engine dynamometer. When the relevant 
class is heavy duty, the emissions shall be generated on a heavy-duty 
engine operated on an engine dynamometer. In both cases, the vehicle or 
engine model shall be selected as described in paragraph (a) of this 
section and shall have all applicable fuel and emission control systems 
intact.
    (2) Except as provided in Sec.  79.51(h)(2)(iii), the fuel or 
additive/base fuel mixture being tested shall be used at all times 
during operation of the test vehicle or engine. No other fuels or 
additives shall be used in the test vehicle or engine once mileage 
accumulation has begun until emission generation for emission 
characterization and biological testing purposes is completed.
    (i) A vehicle or engine may be used to generate emissions for the 
testing of more than one fuel or additive, provided that all such fuels 
and additives belong to the same fuel family pursuant to Sec.  
79.56(e)(i), and that, once a vehicle or engine has been used to 
generate emissions for an atypical fuel or additive (pursuant to Sec.  
79.56(e)(2)(iii)), it shall not be used in the testing of any other fuel 
or additive. Paragraphs (a) (2) and (3) of this section shall apply only 
to the first fuel or additive tested.
    (ii) Prior to being used to generate emissions for testing an 
additional fuel or additive, a vehicle or engine which has previously 
been used for testing a different fuel or additive shall undergo an 
effective intermediate preconditioning cycle to remove the previously 
used fuel and its emissions from the vehicle's fuel and exhaust systems 
and from the combustion emission and evaporative emission control 
systems, if any.
    (iii) Such preconditioning shall include, at a minimum, the 
following steps:
    (A) The canister (if any) shall be removed from the vehicle and 
purged with 300 [deg]F nitrogen at 20 liters per minute until the 
incremental weight loss of the canister is less than 1 gram in 30 
minutes. This typically takes 3-4 hours and removes 100 to 120 grams of 
adsorbed gasoline vapors.
    (B) The fuel tank shall be drained and filled to capacity with the 
new test fuel or additive/fuel mixture.
    (C) The vehicle or engine shall be operated until at least 95% of 
the fuel tank capacity is consumed.
    (D) The purged canister shall be returned to the vehicle.
    (E) The fuel tank shall be drained and filled to 40% capacity with 
test fuel.
    (F) Two-hour fuel tank heat builds from 72-120 [deg]F shall be 
performed repeatedly as necessary to achieve canister breakthrough. The 
fuel tank must be drained and filled prior to each heat build.
    (3) Scheduled and unscheduled vehicle/engine maintenance. (i) During 
emission generation, vehicles and engines must be maintained in good 
condition by following the recommendations of the original equipment 
manufacturer (OEM) for scheduled service and parts replacement, with 
repairs performed only as necessary. Modifications, adjustments, and 
maintenance procedures contrary to procedures found in 40 CFR part 86 
for the maintenance of test vehicles/engines or performed solely for the 
purpose of emissions improvement are not allowed.
    (ii) If unscheduled maintenance becomes necessary, the vehicle or 
engine must be repaired to OEM specifications, using OEM or OEM-approved 
parts. In addition, the tester is required to measure the basic 
emissions

[[Page 48]]

pursuant to Sec.  79.52(b)(2)(i) after the unscheduled maintenance and 
before resuming testing to ensure that the post-maintenance emissions 
shall be within 20 percent of pre-maintenance emissions levels. If the 
basic emissions cannot be brought within 20 percent of their previous 
levels, then the manufacturer shall restart the emissions 
characterization and health testing of its products combustion emissions 
using a new vehicle/engine.
    (c) Mileage accumulation. (1) A vehicle/engine break-in period is 
required prior to generating emissions for characterization and/or 
biological testing under this subpart. The required mileage accumulation 
may be accomplished on a test track, on the street, on a dynamometer, or 
using any other conventionally accepted method.
    (2) Vehicles to be used in the evaluation of baseline and non-
baseline fuels and fuel additives shall accumulate 4,000 miles prior to 
emission testing. Engines to be used in the evaluation of baseline and 
non-baseline fuels and fuel additives shall accumulate 125 hours of 
operation on an engine dynamometer prior to emission testing.
    (3) When the test formulation is classified as an atypical fuel or 
fuel additive formulation (pursuant to definitions in Sec.  
79.56(e)(4)(iii)), the following additional mileage accumulation 
requirements apply:
    (i) The test vehicle/engine must be operated for a minimum of 4,000 
vehicle miles or 125 hours of engine operation.
    (ii) Thereafter, at intervals determined by the tester, all emission 
fractions (i.e., vapor, semi-volatile, and particulate) shall be sampled 
and analyzed for the presence and amount of the atypical element(s) and/
or other atypical constituents. Pursuant to paragraph (d) of this 
section, the sampled emissions must be generated in the absence of an 
intact aftertreatment device. Immediately before the samples are taken, 
a brief warmup period (at least ten miles or the engine equivalent) is 
required.
    (iii) Mileage accumulation shall continue until either 50 percent or 
more of the mass of each atypical element (or other atypical 
constituent) entering the engine can be measured in the exhaust 
emissions (all fractions combined), or the vehicle/engine has 
accumulated mileage (or hours) equivalent to 40 percent of the average 
useful life of the applicable vehicle/engine class (pursuant to 
regulations in 40 CFR part 86). For example, the maximum mileage 
required for light-duty vehicles is 40 percent of 100,000 miles (i.e., 
40,000 miles), while the maximum time of operation for heavy-duty 
engines is the equivalent of 40 percent of 290,000 miles (i.e., the 
equivalent in engine hours of 116,000 miles).
    (iv) When either condition in paragraph (c)(3)(iii) of this section 
has been reached, additional emission characterization and biological 
testing of the emissions may begin.
    (d) Use of exhaust aftertreatment devices. (1) If the selected test 
vehicle/engine, as certified by EPA, does not come equipped with an 
emissions aftertreatment device (such as a catalyst or particulate 
trap), such device shall not be used in the context of this program.
    (2) Except as provided in paragraph (d)(3) of this section for 
certain specialized additives, the following provisions apply when the 
test vehicle/engine, as certified by EPA, comes equipped with an 
emissions aftertreatment device.
    (i) For mileage accumulation:
    (A) When the test formulation does not contain any atypical elements 
(pursuant to definitions in Sec.  79.56(e)(4)(iii)), an intact 
aftertreatment device must be used during mileage accumulation.
    (B) When the test formulation does contain atypical elements, then 
the manufacturer may choose to accumulate the required mileage using a 
vehicle/engine equipped with either an intact aftertreatment device or 
with a non-functional aftertreatment device (e.g., a blank catalyst 
without its catalytic wash coat). In either case, sampling and analysis 
of emissions for measurement of the mass of the atypical element(s) (as 
described in Sec.  79.57(c)(3)) must be done on emissions generated with 
a non-functional (blank) aftertreatment device.
    (1) If the manufacturer chooses to accumulate mileage without a 
functional aftertreatment device, and if the manufacturer wishes to do 
this outside of a laboratory/test track setting, then a

[[Page 49]]

memorandum of exemption for product testing must be obtained by applying 
to the Director of the Field Operations and Support Division (see Sec.  
79.59(a)(1)).
    (2) [Reserved]
    (ii) For Tier 1 (Sec.  79.52), the total set of requirements for the 
characterization of combustion emissions (Sec.  79.52(b)) must be 
completed two times, once using emissions generated with the 
aftertreatment device intact and a second time with the aftertreatment 
device rendered nonfunctional or replaced with a non-functional 
aftertreatment device as described in paragraph (d)(2)(i)(B) of this 
section.
    (iii) For Tier 2 (Sec.  79.53), the standard requirements for 
biological testing of combustion emissions shall be conducted using 
emissions generated with a non-functioning aftertreatment device as 
described in paragraph (d)(2)(i)(B) of this section.
    (iv) For alternative Tier 2 requirements (Sec.  79.58(c)) or Tier 3 
requirements (Sec.  79.54) which may be prescribed by EPA, the use of 
functional or nonfunctional aftertreatment devices shall be specified by 
EPA as part of the test guidelines.
    (v) In the case where an intact aftertreatment device is not in 
place, all other manufacturer-specified combustion characteristics 
(e.g., back pressure, residence time, and mixing characteristics) of the 
altered vehicle/engine shall be retained to the greatest extent 
possible.
    (3) Notwithstanding paragraphs (d)(1) and (d)(2) of this section, 
when the subject of testing is a fuel additive specifically intended to 
enhance the effectiveness of exhaust aftertreatment devices, the related 
aftertreatment device may be used on the emission generation vehicle/
engine during all mileage accumulation and testing.
    (e) Generation of combustion emissions--(1) Generating combustion 
emissions for emission characterization. (i) Combustion emissions shall 
be generated according to the exhaust emission portion of the Federal 
Test Procedure (FTP) for the certification of new motor vehicles, found 
in 40 CFR part 86, subpart B for light-duty vehicles/engines, and 
subparts D, M and N for heavy-duty vehicles/engines. The Urban 
Dynamometer Driving Schedule (UDDS), pursuant to 40 CFR part 86, 
appendix I(a), shall apply to light-duty vehicles/engines and the Engine 
Dynamometer Driving Schedule (EDS), pursuant to 40 CFR part 86, appendix 
I(f)(2), shall apply to heavy-duty vehicles/engines. The motoring 
portion of the heavy-duty test cycle may be eliminated, at the 
manufacturer's option, for the generation of emissions.
    (A) For light-duty engines operated on an engine dynamometer, the 
tester shall determine the speed-torque equivalencies (``trace'') for 
its test engine from valid FTP testing performed on a chassis 
dynamometer, using a test vehicle with an engine identical to that being 
tested. The test engine must then be operated under these speed and 
torque specifications to simulate the FTP cycle.
    (B) Special procedures not included in the FTP may be necessary in 
order to characterize emissions from fuels and fuel additives containing 
atypical elements or to collect some types of emissions (e.g., 
particulate emissions from light-duty vehicles/engines, semi-volatile 
emissions from both light-duty and heavy-duty vehicles/engines). Such 
alterations to the FTP are acceptable.
    (C) For Tier 2 testing, the engines shall operate on repeated bags 2 
and 3 of the UDDS or back to back repeats of the heavy-duty transient 
cycle of the EDS.
    (ii) Pursuant to Sec.  79.52(b)(1)(i) and Sec.  79.57(d)(2)(ii), 
emission generation and characterization must be repeated three times 
when the selected vehicle/engine is normally operated without an 
emissions aftertreatment device and six times when the selected vehicle/
engine is normally operated with an emissions aftertreatment device. In 
the latter case, the emission generation and characterization process 
shall be repeated three times with the intact aftertreatment device in 
place and three times with a non-functioning (blank) aftertreatment 
device in place.
    (iii) From both light-duty and heavy-duty vehicles/engines, samples 
of vapor phase, semi-volatile phase, and particulate phase emissions 
shall be collected, except that semi-volatile phase, and particulate 
emissions need not be sampled for fuels and additives in the

[[Page 50]]

methane and propane families (pursuant to Sec.  79.56(e)(1)(v) and 
(vi)). The number and type of samples to be collected and separately 
analyzed during one emission generation/characterization process are as 
follows:
    (A) In the case of combustion emissions generated from light-duty 
vehicles/engines, the samples consist of three bags of vapor emissions 
(one from each segment of the light-duty exhaust emission cycle) plus 
one sample of particulate-phase emissions and one sample of semi-
volatile-phase emissions (collected over all segments of the exhaust 
emission cycle). If the mass of particulate emissions or semi-volatile 
emissions obtained during one driving cycle is not sufficient for 
characterization, up to three driving cycles may be performed and the 
extracted fractions combined prior to chemical analysis. Particulate-
phase emissions shall not be combined with semi-volatile-phase 
emissions. The test laboratory should focus on the characterization of 
the limit of detection for particulates and semi-volatile emissions.
    (B) In the case of combustion emissions generated from heavy-duty 
engines, the samples consist of one sample of each emission phase 
(vapor, particulate, and semi-volatile) collected over the entire cold-
start cycle and a second sample of each such phase collected over the 
entire hot-start cycle (see 40 CFR 86.334 through 86.342).
    (iv) Emission collection and storage. (A) Vapor phase emissions 
shall be collected and stored in Tedlar bags for subsequent chemical 
analysis. Storage conditions are specified in Sec.  79.52(b)(2).
    (B) Particulate phase emissions shall be collected on a particulate 
filter (or more than one, if required) using methods described in 40 CFR 
86.1301 through 86.1344. These methods, ordinarily applied only to 
heavy-duty emissions, are to be adapted and used for collection of 
particulates from light-duty vehicles/engines, as well. The particulate 
matter may be stored on the filter in a sealed container, or the soluble 
organic fraction may be extracted and stored in a separate sealed 
container. Both the particulate and the extract shall be shielded from 
ultraviolet light and stored at -20 [deg]C or less. Particulate 
emissions shall be tested no later than six months from the date they 
were generated.
    (C) Semi-volatile emissions shall be collected immediately 
downstream from the particulate collection filters using porous polymer 
resin beds, or their equivalent, designed for their capture. The soluble 
organic fraction of semi-volatile emissions shall be extracted 
immediately and tested within six months of being generated. The extract 
shall be stored in a sealed container which is shielded from ultraviolet 
light and stored at -20 [deg]C or less.
    (D) Particulate and semi-volatile phase emission collection, 
handling and extraction methods shall not alter the composition of the 
collected material, to the extent possible.
    (v) Additional requirements for combustion emission sampling, 
storage, and characterization are specified in Sec.  79.52(b).
    (2) Generating whole combustion emissions for biological testing. 
(i) Biological tests requiring whole combustion emissions shall be 
conducted using emissions generated from the test vehicle or engine 
operated in accordance with general FTP requirements.
    (ii) Light-duty test vehicles/engines shall be repeatedly operated 
over the Urban Dynamometer Driving Schedule (UDDS) (or equivalent engine 
dynamometer trace, per paragraph (e)(1)(i)(A) of this section) and 
heavy-duty test engines shall be repeatedly operated over the Engine 
Dynamometer Schedule (EDS) (see 40 CFR part 86, appendix I).
    (A) The tolerances of the driving cycle shall be two times those of 
the Federal Test Procedure and must be met 95 percent of the time.
    (B) The UDDS or EDS shall be repeated as many times as required for 
the biological test session.
    (C) Light-duty dynamometers shall be calibrated prior to the start 
of a biological test (40 CFR 86.118-78), verified weekly (40 CFR 86.118-
78), and recalibrated as required. Heavy-duty dynamometers shall be 
calibrated and checked prior to the start of a biological test (40 CFR 
86.1318-84), recalibrated every two weeks (40 CFR 86.1318-84(a)) and 
checked as stated in 40 CFR 86.1318-84(b) and (c).

[[Page 51]]

    (D) The fuel reservoir for the test vehicle/engine shall be large 
enough to operate the test vehicle/engine throughout the daily 
biological exposure period, avoiding the need for refueling during 
testing.
    (iii) An apparatus to integrate the large concentration swings 
typical of transient-cycle exhaust is to be used between the source of 
emissions and the exposure chamber containing the animal test cages(s). 
The purpose of such apparatus is to decrease the variability of the 
biological exposure atmosphere and achieve the necessary concentration 
of CO or NOX, whichever is limiting.
    (A) A large mixing chamber is suggested for this purpose. The mixing 
chamber would be charged from the CVS at a constant rate determined by 
the exposure chamber purge rate. Flow to the exposure chamber would 
begin at the conclusion of the initial transient cycle with the 
associated mixing chamber charge.
    (B) A potential alternative apparatus is a mini-diluter (see, for 
example, AIGER/CRADA, February, 1994 in Sec.  79.57(g)).
    (C) [Reserved]
    (iv) Emission dilution. (A) Dilution air can be pre-dried to lower 
the relative humidity, thus permitting a lower dilution rate and a 
higher concentration of hydrocarbons to be achieved without condensation 
of water vapor.
    (B) These procedures include requirements that the mean exposure 
concentration in the inhalation test chamber on 90 percent or more of 
the exposure days shall be controlled as follows:
    (1) If the species being controlled is hydrocarbon or particulate, 
the mean exposure concentration must be within 15 percent of the target 
concentration for the single species being controlled.
    (2) For other species, the mean exposure concentration must be 
within 10 percent of the target concentration for the single species 
being controlled.
    (3) For all species, daily monitoring of CO, CO2, 
NOX, SOX, and total hydrocarbons in the exposure 
chamber shall be required. Analysis of the particle size distribution 
shall also be performed to establish the stability and consistency of 
particle size distribution in the test exposure.
    (C) After the initial exhaust dilution to preserve the character of 
the exhaust, the exhaust stream can be further diluted in the mixing 
chamber (and/or after leaving the chamber) to achieve the desired 
biological exposure concentrations.
    (v) Verification procedures. (A) The entire system used to dilute 
and transport whole combustion emissions (i.e., from exhaust pipe to 
outlet in the biological testing chamber) shall be verified before any 
animal exposures begin, and verified at least weekly during testing. 
(See procedures at 40 CFR 86.119-90 for light-duty vehicles and Sec.  
86.1319-90 for heavy-duty engines.) Verification testing shall be 
accomplished by introducing a known sample at the end of the vehicle/
engine exhaust pipe into the dilution system and measuring the amount 
exiting the system. For example, an injected hydrocarbon sample could be 
detected with a gas chromatograph (GC) and flame ionization detector 
(FID) to determine the recovery factor.
    (B) [Reserved]
    (vi) Emission exposure quality control. (A) The tester shall 
incorporate the additional quality assurance and safety procedures 
outlined in Sec.  79.61(d) to control variability of emissions during 
the generation of exposure emissions during health effect testing.
    (B) These procedures include requirements that the mean exposure 
concentration in the inhalation test chamber on 90 percent or more of 
the exposure days shall be controlled as follows:
    (1) If the species being controlled is hydrocarbon or particulate, 
the mean exposure concentration must be within 15 percent of the target 
concentration for the single species being controlled.
    (2) For other species, the mean exposure concentration must be 
within 10 percent of the target concentration for the single species 
being controlled.
    (3) For all species, daily monitoring of CO, CO2, 
NOX, SOX, and total hydrocarbons in the exposure 
chamber shall be required. Analysis of the particle size distribution 
shall also be performed to establish the stability and consistency of 
particle size distribution in the test exposure.

[[Page 52]]

    (C) The testing facility shall allow an audit of its premises, the 
qualifications, e.g., curriculum vitae, of its staff assigned to 
testing, and the specimens and records of the testing for registration 
purposes (as specified in Sec.  79.60).
    (vii) To allow for customary laboratory scheduling and unforeseen 
problems affecting the combustion emission generation or dilution 
equipment, biological exposures may be interrupted on limited occasions, 
as specified in Sec.  79.61(d)(5). Interruptions exceeding these 
limitations shall cause the affected test(s) to be void. Testers shall 
be aware of concerns for backup vehicles/engines cited in paragraph 
(a)(7)(ii) of this section.
    (3) Generating particulate and semi-volatile emissions for 
biological testing. (i) Salmonella mutagenicity testing, pursuant to 
Sec.  79.68, shall be conducted on extracts of the particulate and semi-
volatile emission phases separately. These emissions shall be generated 
by operating the test vehicle/engine over the appropriate FTP driving 
schedule (see paragraph (e)(2)(ii) of this section) and collected and 
analyzed according to methods described in 40 CFR 86.1301 through 1344 
(further information on this subject may be found in Perez, et al. CRC 
Report No. 551, 1987 listed in Sec.  79.57(g)).
    (A) Particulate emissions shall be collected on particulate filters 
and extracted from the collection equipment for use in biological tests. 
The number of repetitions of the applicable driving schedule required to 
collect sufficient quantities of the particulate emissions will vary, 
depending on the characteristics of the engine, the test fuel, and the 
requirements of the biological test protocol. The particulate sample may 
be collected on one or more filters, as necessary.
    (B) Semi-volatile emissions shall be collected immediately 
downstream from the particulate collection filters using porous polymer 
resin beds, or their equivalent, designed for their capture. Semi-
volatile phase emissions shall be collected on one apparatus. The time 
spent collecting sufficient quantities of the test substances in 
emissions samples will vary, depending on the emission characteristics 
of the engine and fuel or additive/base fuel mixture and on the 
requirements of the biological test protocol.
    (ii) The extraction method shall be determined by the specifications 
of the biological test for which the emissions are used.
    (iii) Particulate and semi-volatile emission storage requirements 
are as specified in Sec.  79.57(e)(1)(iv).
    (iv) Particulate and semi-volatile phase emission collection, 
handling and extraction methods shall not alter the composition of the 
collected material, to the extent possible.
    (v) Particulate emissions shall not be combined with semi-volatile 
phase emissions.
    (f) Generation of evaporative emissions for characterization and 
biological testing. (1) Except as provided in paragraph (f)(5) of this 
section, an evaporative emissions generator shall be used to volatilize 
samples of a fuel or additive/base fuel mixture for evaporative 
emissions characterization and biological testing. Emissions shall be 
collected and sampled using equipment and methods appropriate for use 
with the compounds being characterized and the requirements of the 
emission characterization analysis. In the case of potentially explosive 
test substance concentrations, care must be taken to avoid generating 
explosive atmospheres. The tester is referred to Sec.  79.61(d)(8) for 
considerations involving explosivity.
    (2) Evaporative Emissions Generator (EEG) Description. An EEG is a 
fuel tank or vessel to which heat is applied causing a portion of the 
fuel to evaporate at a desired rate. The manufacturer has flexibility in 
designing an EEG for testing a particular fuel or fuel additive. The 
sample used to generate emissions in the EEG shall be renewed at least 
daily.
    (i) The evaporation chamber shall be made from materials compatible 
with the fuels and additives being tested and shall be equipped with a 
drain.
    (ii) The chamber shall be filled to 40 5 
percent of its interior volume with the fuel or additive/base fuel 
mixture being tested, with the remainder of the volume containing air.
    (iii) The concentration of the evaporated fuel or additive/base fuel 
mixture in the vapor space of the evaporation

[[Page 53]]

chamber during the time emissions are being withdrawn for testing shall 
not vary by more than 10 percent from the equilibrium concentration in 
the vapor space of emissions generated from the fresh fuel or additive/
base fuel mixture in the chamber.
    (A) During the course of a day's emission generation period, the 
level of fuel in the EEG shall be maintained to within 7 percent of its 
height at the start of the daily exposure period.
    (B) The fuel used in the EEG shall be drained at the end of each 
daily exposure. The EEG shall be refilled with a fresh supply of the 
test formulation before the start of each daily exposure.
    (C) The vapor space of the evaporation chamber shall be well mixed 
throughout the time emissions are being withdrawn for testing.
    (iv) The size of the evaporation chamber shall be determined by the 
rate at which evaporative emissions shall be needed in the test animal 
exposure chambers and the rate at which the fuel or the additive/base 
fuel mixture evaporates. The rate of evaporative emissions may be 
adjusted by altering the size of the EEG or by using one or more 
additional EEG(s). Emission rate modifications shall not be adjusted by 
temperature control or pressure control.
    (v) The temperature of the fuel or additive/base fuel mixture in the 
evaporation chamber shall be 130 [deg]F 5 [deg]F. 
The vapors shall maintain this temperature up to the point in the system 
where the vapors are diluted.
    (vi) The pressure in the vapor space of the evaporation chamber and 
the dilution and sampling apparatus shall stay within 10 percent of 
ambient atmospheric pressure.
    (vii) There shall be no controls or equipment on the evaporation 
chamber system that change the concentration or composition of the 
vapors generated for testing.
    (viii) Manufacturers shall perform verification testing of 
evaporative emissions in a manner analogous to the verification testing 
performed for combustion emissions.
    (3) For biological testing, vapor shall be withdrawn from the EEG at 
a constant rate, diluted with air as required for the particular study, 
and conducted immediately to the biological testing chamber(s) in a 
manner similar to the method used in Sec.  79.57(e), excluding the 
mixing chamber therein. The rate of emission generation shall be high 
enough to supply the biological exposure chamber with sufficient 
emissions to allow for a minimum of fifteen air changes per exposure 
chamber per hour. To allow for customary laboratory scheduling and for 
unforeseen problems with the evaporative emission generation or dilution 
equipment, biological exposures may be interrupted on limited occasions, 
as specified in Sec.  79.61(d)(5). Interruptions exceeding these 
limitations shall cause the affected test(s) to be void.
    (4) For characterization of evaporative emissions, samples of 
equilibrated emissions to the vapor space of the EEG shall be withdrawn 
into Tedlar bags, then stored and analyzed as specified in Sec.  
79.52(b).
    (5) A manufacturer (or group of manufacturers) may submit to EPA a 
request for approval of an alternative method of generating evaporative 
emissions for use in emission characterization and biological tests 
required under this subpart.
    (i) To be approved by EPA, the request must fully explain the 
rationale for the proposed method as well as the technical procedures, 
quality control, and safety precautions to be used, and must demonstrate 
that the proposed method will meet the following criteria:
    (A) The emission mixture generated by the proposed procedures must 
be reasonably similar to the equilibrium composition of the vapor which 
occurs in the vehicle fuel tank head space when the subject fuel or 
additive/base fuel mixture is in use and near-maximum in-use 
temperatures are encountered.
    (B) The emissions mixture generated by the proposed method must be 
sufficiently concentrated to provide adequate exposure levels in the 
context of the required toxicologic tests.
    (C) The proposed method must include procedures to ensure that the 
emissions delivered to the biologic exposure chambers will provide a 
reasonably constant exposure atmosphere over time.

[[Page 54]]

    (ii) If EPA approves the request, EPA will place in the public 
record a copy of the request, together with all supporting procedural 
descriptions and justifications, and will notify the public of its 
availability by publishing a notice in the Federal Register.
    (g) References. For additional background information on the 
emission generation procedures outlined in this paragraph (g), the 
following references may be consulted. Additional references can be 
found in Sec.  79.61(f).
    (1) AIGER/CRADA (American Industry/Government Emissions Research 
Cooperative Research and Development Agreement, ``Specifications for 
Advanced Emissions Test Instrumentation'' AIGER PD-94-1, Revision 5.0, 
February, 1994
    (2) Black, F. and R. Snow, ``Constant Volume Sampling System Water 
Condensation'' SAE 940970 in ``Testing and Instrumentation'' SP-1039, 
Society of Automotive Engineers, Feb. 28-Mar. 3, 1994.
    (3) Perez, J.M., Jass, R.E., Leddy, D.G., eds. ``Chemical Methods 
for the Measurement of Unregulated Diesel Emissions (CRC-APRAC Project 
No. CAPI-1-64), Coordinating Research Council, CRC Report No. 551, 
August, 1987.
    (4) Phalen, R.F., ``Inhalation Studies: Foundations and 
Techniques'', CRC Press, Inc., Boca Raton, Florida, 1984.

[59 FR 33093, June 27, 1994, as amended at 61 FR 36511, July 11, 1996; 
63 FR 63792, Nov. 17, 1998]



Sec.  79.58  Special provisions.

    (a) Relabeled Additives. Sellers of relabeled additives (pursuant to 
Sec.  79.50) are not required to comply with the provisions of Sec.  
79.52, 79.53 or 79.59, except that such sellers are required to comply 
with Sec.  79.59(b).
    (b) Low Vapor Pressure Fuels and Additives. Fuels which are not 
designated as ``evaporative fuels'' and fuel additives which are not 
designated as ``evaporative fuel additives'' pursuant to the definitions 
in Sec.  79.50 need not undergo the emission characterization or health 
effects testing specified in Sec. Sec.  79.52 and 79.53 for evaporative 
emissions. At EPA's discretion, the evaporative emissions of such fuels 
and additives may be required to undergo Tier 3 testing, pursuant to 
Sec.  79.54.
    (c) Alternative Tier 2 Provisions. At EPA's discretion, EPA may 
modify the standard Tier 2 health effects testing requirements for a 
fuel or fuel additive (or group). Such modification may encompass 
substitution, addition, or deletion of Tier 2 studies or study 
specifications, and/or changes in underlying engine or equipment 
requirements, except that a Tier 2 endpoint will not be deleted in the 
absence of existing information deemed adequate by EPA or alternative 
testing requirements for such endpoint. If warranted by the particular 
requirements, EPA will allow additional time for completion of the 
alternative Tier 2 testing program.
    (1) When EPA intends to require testing in lieu of or in addition to 
standard Tier 2 health testing, EPA will notify the responsible 
manufacturer (or group) by certified letter of the specific tests which 
EPA is proposing to require in lieu of or in addition to Tier 2, and the 
proposed schedule for completion and submission of such tests. A copy of 
the letter will be placed in the public record. EPA intends to send the 
notification prior to November 27, 1995, or in the case of new fuels and 
additives (as defined in Sec.  79.51(c)(3)), within 18 months of EPA's 
receipt of an intent to register such product. However, EPA's 
notification to the manufacturer (or group) may occur at any time up to 
EPA's receipt of Tier 2 data for the product(s) in question. EPA will 
provide the manufacturer with 60 days from the date of receipt of the 
notice to comment on the tests which EPA is proposing to require and on 
the proposed schedule. If the manufacturer believes that undue costs or 
hardships will occur as a result of EPA's delay in providing 
notification of alternative Tier 2 requirements, then the manufacturer's 
comments should describe and include evidence of such hardship. In 
particular, if the standard Tier 2 toxicology testing for the fuel or 
additive in question has already begun at the time the manufacturer 
receives EPA's notification of proposed alternative Tier 2 requirements, 
then EPA shall refrain from requiring alternative Tier 2 tests provided 
that EPA receives the

[[Page 55]]

standard Tier 2 data and report (pursuant to Sec.  79.59(c)) within one 
year of the date on which the toxicology testing began.
    (2) EPA will issue a notice in the Federal Register announcing its 
intent to require special testing in lieu of or in addition to the 
standard Tier 2 testing for a particular fuel or additive manufacturer 
or group, and that a copy of the letter to the manufacturer or group 
describing the proposed alternative Tier 2 testing for that manufacturer 
or group is available in the public record for review and comment. The 
public shall have a minimum of 30 days after the publication of this 
notice to comment on the proposed alternative Tier 2 testing.
    (3) EPA will include in the public record a copy of any timely 
comments concerning the proposed alternative Tier 2 testing requirements 
received from the affected manufacturer or group or from the public, and 
the responses of EPA to such comments. After reviewing all such comments 
received, EPA may adopt final alternative Tier 2 requirements by sending 
a certified letter describing such final requirements to the 
manufacturer or group. In that event, EPA will also issue a notice in 
the Federal Register announcing that it has adopted final alternative 
Tier 2 requirements and that a copy of the letter adopting the 
requirements has been included in the public record.
    (4) After EPA's receipt of a manufacturer's (or group's) submittals, 
EPA will notify the responsible manufacturer (or group) regarding the 
adequacy of the submittal and potential Tier 3 testing requirements 
according to the same relative time intervals and by the same procedures 
as specified in Sec.  79.51 (c) and (d) for routine Tier 1 and Tier 2 
submittals.
    (d) Small Business Provisions. (1) For purposes of these provisions, 
when subsidiary, divisional, or other complex business arrangements 
exist, manufacturer is defined as the business entity with ultimate 
ownership of all related parents, subsidiaries, divisions, branches, or 
other operating units. Total annual sales means the average of the 
manufacturer's total sales revenue, excluding any revenue which 
represents the collection of Federal, State, or local excise taxes or 
sales taxes, in each of the three years prior to such manufacturer's 
submittal to EPA of the basic registration information pursuant to Sec.  
79.59(b)(2) through (b)(5).
    (2) Provisions Applicable to Baseline and Non-baseline Products. A 
manufacturer with total annual sales less than $50 million is not 
required to meet the requirements of Tier 1 and Tier 2 (specified in 
Sec. Sec.  79.52 and 79.53) with regard to such manufacturer's fuel and/
or additive products which meet the criteria for inclusion in a Baseline 
or Non-baseline group pursuant to Sec.  79.56. Upon such manufacturer's 
satisfactory completion and submittal to EPA of basic registration data 
specified in Sec.  79.59(b), the manufacturer may request and EPA shall 
issue a registration for such product, subject to Sec.  79.51(c) and 
paragraphs (d)(4) and (d)(5) of this section.
    (3) Provisions Applicable to Atypical Products. A manufacturer with 
total annual sales less than $10 million is not required to meet the 
requirements of Tier 2 (specified in Sec.  79.53) in regard to such 
manufacturer's fuel and/or additive products which meet the criteria for 
inclusion in an Atypical group pursuant to Sec.  79.56. Upon such 
manufacturer's satisfactory completion and submittal to EPA of basic 
registration data specified in Sec.  79.59(b) and Tier 1 information 
specified in Sec.  79.52 for an Atypical fuel or additive, the 
manufacturer may request and EPA shall issue a registration for such 
product, subject to Sec.  79.51(c) and paragraphs (d)(4) and (d)(5) of 
this section. Compliance with Tier 1 requirements under this paragraph 
may be accomplished by the individual manufacturer or as a part of a 
group pursuant to Sec.  79.56.
    (4) Any registration granted by EPA under the provisions of this 
section are conditional upon satisfactory completion of any Tier 3 
requirements which EPA may subsequently impose pursuant to Sec.  79.54. 
In such circumstances, the Tier 3 requirements might include (but would 
not necessarily be limited to) information which would otherwise have 
been required under the provisions of Tier 1 and/or Tier 2.
    (5) The provisions in paragraphs (d)(2) and (d)(3) of this section 
are voluntary

[[Page 56]]

on the part of qualifying small manufacturers. Such manufacturers may 
choose to fulfill the standard requirements for their fuels and 
additives, individually or as a part of a group, rather than satisfying 
only the requirements specified in paragraphs (d)(2) and/or (d)(3) of 
this section. If a qualifying small manufacturer elects these special 
provisions rather than the standard requirements for a product, then EPA 
will generally assume that any additional information submitted by other 
manufacturers, for fuels and additives meeting the same grouping 
criteria (under Sec.  79.56) as that of the small manufacturer's 
product, is pertinent to further testing and/or regulatory decisions 
that may affect the small manufacturer's product.
    (6) In the case of an additive for which the manufacturer is not 
required to meet the requirements of Tier 2 pursuant to paragraph (d)(3) 
of this section:
    (i) A fuel manufacturer which blends such an additive into fuel 
shall not be required to meet the requirements of Tier 2 with respect to 
such additive/fuel mixture.
    (ii) An additive manufacturer which blends such an additive with one 
or more other registered additive products and/or with substances 
containing only carbon and/or hydrogen shall not be required to meet the 
requirements of Tier 2 with respect to such additive or additive blend.
    (e) Aftermarket Aerosol Additives. (1) To obtain registration for an 
aftermarket aerosol fuel additive, the manufacturer shall provide 
existing information in the form of a literature search, a discussion of 
the potential exposure(s) to such product, and the basic registration 
data specified in Sec.  79.59(b).
    (2) The literature search shall include existing data on potential 
health and welfare effects due to exposure to the aerosol product itself 
and its raw (uncombusted) components. The analysis for potential 
exposures shall be based on the actual or anticipated production volume 
and market distribution of the particular aerosol product, and its 
estimated frequency of use. Other Tier 1 and Tier 2 requirements are not 
routinely required for aerosol products. EPA will review the submitted 
information and, at EPA's discretion, may require from the manufacturer 
further information and/or testing under Tier 3 on a case-by-case basis.

[59 FR 33093, June 27, 1994, as amended at 62 FR 12571, Mar. 17, 1997]



Sec.  79.59  Reporting requirements.

    (a) Timing. (1) The manufacturer of each designated fuel or fuel 
additive shall submit to EPA the basic registration data detailed in 
paragraph (b) of this section. Forms for submitting this data may be 
obtained from EPA at the following address: Attn: Fuel/Additives 
Registration, U.S. Environmental Protection Agency, 1200 Pennsylvania 
Ave., NW, Mail Code 6405A, Washington, DC 20460.
    (i) For existing products (pursuant to Sec.  79.51(c)(1)), 
manufacturers shall submit the basic registration data as specified in 
Sec.  79.59(b) to EPA by November 28, 1994.
    (ii) For registrable products (pursuant to Sec.  79.51(c)(2)), 
manufacturers shall submit the basic registration data as specified in 
Sec.  79.59(b) to apply for registration for such product.
    (iii) For new products (pursuant to Sec.  79.51(c)(3)), 
manufacturers are strongly encouraged to notify EPA of an intent to 
obtain product registration by submitting the basic registration data as 
specified in Sec.  79.59(b) prior to starting Tiers 1 and 2.
    (2) The information specified in paragraph (c) of this section shall 
be submitted to the address in paragraph (a)(1) of this section at the 
conclusion of activities performed in compliance with Tiers 1 and 2 
under the provisions of Sec. Sec.  79.52 and 79.53, according to the 
time constraints specified in Sec.  79.51 (c) through (d).
    (3) The information specified in paragraph (d) of this section shall 
be submitted to EPA at the address in paragraph (a)(1) of this section 
at the conclusion of activities performed in compliance with Tier 3 
under the provisions of Sec.  79.54.
    (b) Basic Registration Data. Each manufacturer of a designated fuel 
or fuel additive shall submit the following data in regard to such fuel 
or fuel additive:

[[Page 57]]

    (1) The information specified in Sec.  79.11 or Sec.  79.21. If such 
information has already been submitted to EPA in compliance with subpart 
B or C of this part, and if such previous information is accurate and 
up-to-date, the manufacturer need not resubmit this information.
    (2) Annual production volume of the fuel or fuel additive product, 
in units of gallons per year if most commonly sold in liquid form or 
kilograms per year if most commonly sold in solid form. For fuels and 
fuel additives already in production, the most recent annual production 
volume and the volume projected to be produced in the third subsequent 
year shall be provided. For products not yet in production, the best 
estimate of expected annual volume during the third year of production 
shall be provided.
    (3) Market distribution of the product. For fuels and bulk 
additives, this information shall be presented as the percent of total 
annual sales volume marketed in each Petroleum Administration for 
Defense District (PADD). The States comprising each PADD are listed in 
the following section. For aftermarket additives, the distribution data 
shall be presented as the percent of total annual sales volume marketed 
in each State. For a product not yet in production, the manufacturer 
shall present the distribution (by PADD or State, as applicable) 
projected to occur during the third year of production.
    (i) The following States and jurisdictions are included in PADD I:

Connecticut
Delaware
District of Columbia
Florida
Georgia
Maine
Maryland
Massachusetts
New Hampshire
New Jersey
New York
North Carolina
Pennsylvania
Rhode Island
South Carolina
Vermont
Virginia
West Virginia

    (ii) The following States are included in PADD II:

Illinois
Indiana
Iowa
Kansas
Kentucky
Michigan
Minnesota
Missouri
Nebraska
North Dakota
Ohio
Oklahoma
South Dakota
Tennessee
Wisconsin

    (iii) The following States are included in PADD III:

Alabama
Arkansas
Louisiana
Mississippi
New Mexico
Texas

    (iv) The following States are included in PADD IV:

Colorado
Idaho
Montana
Utah
Wyoming

    (v) The following States are included in PADD V:

Alaska
Arizona
California
Hawaii
Nevada
Oregon
Washington

    (4) Any applicable information pursuant to the grouping provisions 
in Sec.  79.56, as follows:
    (i) If the manufacturer has enrolled or intends to enroll the 
product in a fuel/additive group, the relevant group and the person(s) 
or entity expected to submit information on behalf of the group must be 
identified.
    (ii) If the manufacturer intends to rely on registration information 
previously submitted by another manufacturer (or group) for registration 
of other product(s) in the same fuel/additive group, then the original 
submitter and its product (or product group) shall be identified. In 
such cases, the manufacturer shall provide evidence that the original 
submitter has been notified of the use of its registration data and that 
the manufacturer has complied or intends to comply with the proportional 
reimbursement required under Sec.  79.56(c) of this rule.
    (5) Any applicable information pursuant to the special provisions in 
Sec.  79.58, as follows:
    (i) If the manufacturer claims applicability of the special 
provisions for relabeled additives, pursuant to Sec.  79.58(a), then the 
manufacturer and brand name of the original product shall be given.
    (ii) If the manufacturer claims applicability of any small business 
provisions pursuant to Sec.  79.58(d), the average of the manufacturer's 
total annual sales revenue for the previous three years shall be given.
    (iii) If the manufacturer claims applicability of the special 
provisions for aerosol products, pursuant to Sec.  79.58(e),

[[Page 58]]

then the purpose and recommended frequency of use shall be given.
    (c) Tier 1 and Tier 2 Reports. If the results of Tiers 1 and 2 are 
reported to EPA at the same time, then the report shall include the 
following documents in paragraphs (c)(1) through (7) of this section. If 
Tier 1 and Tier 2 results are submitted to EPA separately, then the 
separate Tier 1 report shall include only documents in paragraphs (c) 
(1) through (4), (c)(6), and associated appendices in paragraphs (c)(7) 
of this section, and the separate Tier 2 report shall include only 
documents in paragraphs (c)(1) through (3), (c)(5), (c)(6), and 
associated appendices in paragrpah (c)(7) of this section. In addition, 
manufacturers complying with Tier 2 requirements according to one of the 
time schedules specified in Sec.  79.51(c)(1)(ii)(B), Sec.  
79.51(c)(1)(vi)(B)(2), or Sec.  79.51(c)(1)(vii)(B)(2) must submit 
evidence of a suitable arrangement for completion of Tier 2 (e.g., a 
copy of a signed contract with a qualified laboratory for applicable 
Tier 2 services) by the date specified in the applicable time schedule.
    (1) Cover page. (i) Identification of test substance,
    (ii) Name and address of the manufacturer of the test substance,
    (iii) Name and phone number of a designated contact person,
    (iv) Group information, if applicable, including:
    (A) Group name or grouping criteria,
    (B) Name and address of responsible organization or entity reporting 
for the group,
    (C) Product trade name and manufacturer of each member fuel and 
additive to which the report pertains.
    (2) Executive Summary. Text overview of the significant results and 
conclusions obtained as a result of completing the requirements of Tier 
1 and/or Tier 2, including references if used to support such results 
and conclusions.
    (3) Test Substance Information. Test substance description, 
including, as applicable,
    (i) Base fuel parameter values (including types and concentrations 
of base fuel additives) or test fuel composition (if a fuel other than 
the base fuel is used in testing). These values must be provided for 
each of the fuel parameters specified in Sec.  79.55 for the applicable 
fuel family.
    (ii) Test additive composition and concentration
    (4) Summary of Tier 1. (i) Literature Search. Pursuant to Sec.  
79.52(d), the literature search shall include a text summary of the 
methods and results of the literature search, including the following:
    (A) Identification of person(s) performing the literature search,
    (B) Description of data sources accessed, search strategy used, 
search period, and terms included in literature search,
    (C) Documentation of all unpublished in-house and other privately-
conducted studies,
    (D) Tables summarizing the protocols and results of all cited 
studies,
    (E) Summary of significant results and conclusions with respect to 
the effects of the emissions of the subject fuel or fuel additive on the 
public health and welfare, including references if used to support such 
results and conclusions.
    (F) Statement of the extent to which the literature search has 
produced adequate information comparable to that which would otherwise 
be obtained through the performance of applicable emission 
characterization requirements under Sec.  79.52(b) and/or health effects 
testing requirements under Sec.  79.53, including justifications and 
specific references.
    (ii) Emission Characterization. Pursuant to Sec.  79.52(b), the 
emission characterization shall include:
    (A) Name, address, and telephone number of the laboratory performing 
the characterization,
    (B) Name and description of analytic methods used for 
characterization.
    (5) Summary of Tier 2. For each health effects test performed 
pursuant to the provisions of Sec.  79.53, the Tier 2 summary shall 
contain the following information:
    (i) Name, address, and telephone number of the testing facility,
    (ii) Summary of procedures (including quality assurance, quality 
control and compliance with Good Laboratory Practice Standards as 
specified in

[[Page 59]]

Sec.  79.60), findings, and conclusions, including references if used to 
support such results and conclusions,
    (iii) Description of any problems and their resolution.
    (6) Conclusions. The conclusions shall identify the need for further 
testing, if that need exists, or justify that current testing and/or 
available information is adequate for the tier(s) included in the 
report.
    (7) Appendices. The appendices shall contain detailed documentation 
related to the summary information described in this section, including, 
at a minimum, the following five appendices:
    (i) Literature search appendices shall contain:
    (A) Copies of literature source outputs, including reference lists 
and associated abstracts from database searches, printed or on 3\1/2\ 
inch IBM-compatible computer diskettes;
    (B) Summary tables organized by health or welfare endpoint and type 
of emission (e.g., combustion, evaporation, individual emission 
product), presenting in tabular form the following information at a 
minimum: number and species of test subjects, exposure concentrations/
duration, positive (i.e., abnormal) findings including numbers of test 
subjects involved, and bibliographic references;
    (C) Complete documentation and/or reprints of articles for any 
previous study relied upon for satisfying emission characterization and/
or Tier 2 test requirements; and
    (D) Full reports for unpublished/in-house studies.
    (ii) Emissions characterization appendices shall contain:
    (A) Complete laboratory reports, including documentation of 
calibration and verification procedures;
    (B) Documentation of the emissions generation procedures used; and
    (C) Lists of speciated emission products and their emission rates 
reported in units of grams/mile.
    (iii) [Reserved]
    (iv) Tier 2 appendices shall contain, for each test performed:
    (A) Complete protocol used;
    (B) Documentation of emission generation procedures; and
    (C) Complete laboratory report in compliance with the reporting 
standards in Sec.  79.60, including detailed test results and 
conclusions, and descriptions of any problems encountered and their 
resolution.
    (v) Laboratory certification/accreditation information, personnel 
credentials, and statements of compliance with the Good Laboratory 
Practices Standards specified in Sec.  79.60 and the requirements in 
Sec.  79.53(c)(1).
    (d) Tier 3 Report. Subject to applicability as specified in Sec.  
79.54, each manufacturer of a designated fuel or fuel additive, or each 
group of such manufacturers pursuant to the provisions of Sec.  79.56, 
shall submit the following information with respect to each Tier 3 test 
conducted for such fuels or fuel additives:
    (1) The test objectives, including a summary of the reason(s) why 
such additional testing, beyond Tiers 1 and 2, was required;
    (2) Name, address, and telephone number of each testing facility;
    (3) Summary of test procedures, results and conclusions;
    (4) Complete documentation of test protocols and emission generation 
procedures, complete laboratory reports in compliance with the reporting 
standards of Sec.  79.60, detailed test results and conclusions, 
including references if used to support such results and conclusions, 
and descriptions of any problems encountered and their resolution; and
    (5) Laboratory certification information, personnel credentials, and 
statements of compliance with the Good Laboratory Practices Standards 
specified in Sec.  79.60.
    (e) Availability of Information. (1) All health and safety test data 
and other information concerning health and welfare effects which is 
submitted by any manufacturer or group pursuant to Sec. Sec.  79.52(c), 
79.53, or 79.54, shall be considered to be public information and shall 
be made available to the public by EPA upon request. A reasonable fee 
may be charged by EPA for copying such materials. Any manufacturer or 
group who claims that any information concerning the composition of a 
fuel or

[[Page 60]]

fuel additive product, or any other information, submitted under this 
subpart is confidential business information must state this claim in 
writing at the time of the submittal.
    (2) To assert a business confidentiality claim concerning any 
information submitted under this subpart, the submitter must:
    (i) Clearly mark the information as confidential at each location it 
appears in the submission; and
    (ii) Submit with the information claimed as confidential a separate 
document setting forth the claim and listing each location at which the 
information appears in the submission.
    (3) If any person subsequently requests access to information 
submitted under this subpart (other than health and safety test data and 
other information concerning health and welfare effects), and such 
information is subject to a claim of business confidentiality, the 
request and any subsequent disclosure shall be governed by the 
provisions of 40 CFR part 2.

[59 FR 33093, June 27, 1994, as amended at 62 FR 12572, 12576, Mar. 17, 
1997; 85 FR 7069, Feb. 6, 2020]



Sec.  79.60  Good laboratory practices (GLP) standards for inhalation 
exposure health effects testing.

    (a) General Provisions--(1) Scope. (i) This section prescribes good 
laboratory practices (GLPs) for conducting inhalation exposure studies 
relating to motor vehicle emissions health effects testing under this 
part. These directions are intended to ensure the quality and integrity 
of health effects data submitted pursuant to registration regulations 
issued under sections 211(b) or 211(e) of the Clean Air Act (CAA) (42 
U.S.C. 7545).
    (ii) This section applies to any study described by paragraph 
(a)(1)(i) of this section which any person conducts, initiates, or 
supports on or after May 27, 1994.
    (iii) It is EPA's policy that all health effects data developed 
under sections 211(b) and (e) of CAA be in accordance with provisions of 
this section. If data are not developed in accordance with the 
provisions of this section, EPA may consider such data insufficient to 
evaluate the health effects of a motor vehicle's fuel or fuel additive 
emissions, unless the submitter provides additional information 
demonstrating that the data are reliable and adequate and EPA determines 
that the data are sufficient.
    (2) Definitions. As used in this section, the following terms shall 
have the meanings specified:
    Batch means a specific quantity or lot of a test fuel, additive/base 
fuel mixture, or reference substance that has been characterized 
according to Sec.  79.60(f)(1)(i).
    CAA means the Clean Air Act.
    Carrier means any material which is combined with engine/motor 
vehicle emissions or a reference substance for administration to a test 
system. ``Carrier'' includes, but is not limited to, clean, filtered 
air, water, feed, and nutrient media.
    Control atmosphere means clean, filtered air which is administered 
to the test system in the course of a study for the purpose of 
establishing a basis for comparison with the test atmosphere for 
chemical or biological measurements.
    Experimental start date means the first date the test atmosphere is 
applied to the test system.
    Experimental termination date means the last date on which data are 
collected directly from the study.
    Person includes an individual, partnership, corporation, 
association, scientific or academic establishment, government agency, or 
organizational unit thereof, and any other legal entity.
    Quality assurance unit means any person or organizational element, 
except the study director, designated by testing facility management to 
perform the duties relating to quality assurance of the studies.
    Raw data means any laboratory worksheets, records, memoranda, notes, 
or exact copies thereof, that are the result of original observations 
and activities of a study and are necessary for the reconstruction and 
evaluation of the report of that study. In the event that exact 
transcripts of raw data have been prepared (e.g., tapes which have been 
transcribed verbatim, dated, and verified accurate by signature), the 
exact copy or exact transcript may be substituted for the original 
source as

[[Page 61]]

raw data. ``Raw data'' may include photographs, videotape, microfilm or 
microfiche copies, computer printouts, magnetic media, including 
dictated observations, and recorded data from automated instruments.
    Reference substance means any chemical substance or mixture, 
analytical standard, or material other than engine/motor vehicle 
emissions and/or its carrier, that is administered to or used in 
analyzing the test system in the course of a study. A ``reference 
substance'' is used to establish a basis for comparison with the test 
atmosphere for known chemical or biological measurements, i.e., positive 
or negative control substance.
    Specimen means any material derived from a test system for 
examination or analysis.
    Sponsor means person who initiates and supports, by provision of 
financial or other resources, a study or a person who submits a study to 
EPA in response to the CAA Section 211(b) or 211(e) Fuels and Fuel 
Additives Registration Rule or a testing facility, if it both initiates 
and actually conducts the study.
    Study means any experiment, at one or more test sites, in which a 
test system is exposed to a test atmosphere under laboratory conditions 
to determine or help predict the health effects of that exposure in 
humans, other living organisms, or media.
    Study completion date means the date the final report is signed by 
the study director.
    Study director means the individual responsible for the overall 
conduct of a study.
    Study initiation date means the date the protocol is signed by the 
study director.
    Test substance means a vapor and/or aerosol mixture composed of 
engine/motor vehicle emissions and clean, filtered air which is 
administered directly, or indirectly, by the inhalation route to a test 
system in a study which develops data to meet the registration 
requirements of CAA section 211(b) or (e).
    Test system means any animal, microorganism, chemical or physical 
matrix, to which the test, control, or reference substance is 
administered or added for study. This definition also includes 
appropriate groups or components of the system not treated with the 
test, control, or reference substance.
    Testing facility means a person who actually conducts a study, i.e., 
actually uses the test substance in a test system. ``Testing facility'' 
encompasses only those operational units that are being or have been 
used to conduct studies.
    TSCA means the Toxic Substances Control Act (15 U.S.C. 2601 et 
seq.).
    (3) Applicability to studies performed under grants and contracts. 
When a sponsor or other person utilizes the services of a consulting 
laboratory, contractor, or grantee to perform all or a part of a study 
to which this section applies, it shall notify the consulting 
laboratory, contractor, or grantee that the service is, or is part of, a 
study that must be conducted in compliance with the provisions of this 
section.
    (4) Statement of compliance or non-compliance. Any person who 
submits to EPA a test in compliance with registration regulations issued 
under CAA section 211(b) or section 211(e) shall include in the 
submission a true and correct statement, signed by the sponsor and the 
study director, of one of the following types:
    (i) A statement that the study was conducted in accordance with this 
section; or
    (ii) A statement describing in detail all differences between the 
practices used in the study and those required by this section; or
    (iii) A statement that the person was not a sponsor of the study, 
did not conduct the study, and does not know whether the study was 
conducted in accordance with this section.
    (5) Inspection of a testing facility. (i) A testing facility shall 
permit an authorized employee or duly designated representative of EPA, 
at reasonable times and in a reasonable manner, to inspect the facility 
and to inspect (and in the case of records also to copy) all records and 
specimens required to be maintained regarding studies to which this 
section applies. The records inspection and copying requirements shall 
not apply to quality assurance unit records of findings and problems, or 
to actions recommended and taken,

[[Page 62]]

except the EPA may seek production of these records in litigation or 
formal adjudicatory hearings.
    (ii) EPA will not consider reliable for purposes of showing that a 
test substance does or does not present a risk of injury to health or 
the environment any data developed by a testing facility or sponsor that 
refuses to permit inspection in accordance with this section. The 
determination that a study will not be considered reliable does not, 
however, relieve the sponsor of a required test of any obligation under 
any applicable statute or regulation to submit the results of the study 
to EPA.
    (6) Effects of non-compliance. (i) Pursuant to sections 114, 208, 
and 211(d) of the CAA, it shall be a violation of this section and a 
violation of this rule (40 CFR part 79, subpart F) if:
    (A) The test is not being or was not conducted in accordance with 
any requirement of this part; or
    (B) Data or information submitted to EPA under part 79, including 
the statement required by Sec.  79.60(a)(4), include information or data 
that are false or misleading, contain significant omissions, or 
otherwise do not fulfill the requirements of this part; or
    (C) Entry in accordance with Sec.  79.60(a)(5) for the purpose of 
auditing test data is denied.
    (ii) EPA, at its discretion, may not consider reliable for purposes 
of showing that a chemical substance or mixture does not present a risk 
of injury to health any study which was not conducted in accordance with 
this part. EPA, at its discretion, may rely upon such studies for 
purposes of showing adverse effects. The determination that a study will 
not be considered reliable does not, however, relieve the sponsor of a 
required test of the obligation under any applicable statute or 
regulation to submit the results of the study to EPA.
    (iii) If data submitted in compliance with registration regulations 
issued under CAA section 211(b) or section 211(e) are not developed in 
accordance with this section, EPA may determine that the sponsor has not 
fulfilled its obligations under 40 CFR part 79 and may require the 
sponsor to develop data in accordance with the requirements of this 
section in order to satisfy such obligations.
    (b) Organization and Personnel--(1) Personnel. (i) Each individual 
engaged in the conduct of or responsible for the supervision of a study 
shall have education, training, and experience, or combination thereof, 
to enable that individual to perform the assigned functions.
    (ii) Each testing facility shall maintain a current summary of 
training and experience and job description for each individual engaged 
in or supervising the conduct of a study.
    (iii) There shall be a sufficient number of personnel for the timely 
and proper conduct of the study according to the protocol.
    (iv) Personnel shall take necessary personal sanitation and health 
precautions designed to avoid contamination of test fuel and additive/
base fuel mixtures, test and reference substances, and test systems.
    (v) Personnel engaged in a study shall wear clothing appropriate for 
the duties they perform. Such clothing shall be changed as often as 
necessary to prevent microbiological, radiological, or chemical 
contamination of test systems and test, control, and reference 
substances.
    (vi) Any individual found at any time to have an illness that may 
adversely affect the quality and integrity of the study shall be 
excluded from direct contact with test systems, fuel and fuel/additive 
mixtures, test and reference substances and any other operation or 
function that may adversely affect the study until the condition is 
corrected. All personnel shall be instructed to report to their 
immediate supervisors any health or medical conditions that may 
reasonably be considered to have an adverse effect on a study.
    (2) Testing facility management. For each study, testing facility 
management shall:
    (i) Designate a study director as described in Sec.  79.60(b)(3) 
before the study is initiated.
    (ii) Replace the study director promptly if it becomes necessary to 
do so during the conduct of a study.

[[Page 63]]

    (iii) Assure that there is a quality assurance unit as described in 
Sec.  79.60(b)(4).
    (iv) Assure that test fuels and fuel/additive mixtures and test and 
reference substances have been identified as to content, strength, 
purity, stability, and uniformity, as applicable.
    (v) Assure that personnel, resources, facilities, equipment, 
materials and methodologies are available as scheduled.
    (vi) Assure that personnel clearly understand the functions they are 
to perform.
    (vii) Assure that any deviations from these regulations reported by 
the quality assurance unit are communicated to the study director and 
corrective actions are taken and documented.
    (3) Study director. For each study, a scientist or other 
professional person with a doctorate degree or equivalent in toxicology 
or other appropriate discipline shall be identified as the study 
director. The study director has overall responsibility for the 
technical conduct of the study, as well as for the interpretation, 
analysis, documentation, and reporting of results, and represents the 
single point of study control. The study director shall assure that:
    (i) The protocol, including any changes, is approved as provided by 
Sec.  79.60(g)(1)(i) and is followed;
    (ii) All experimental data, including observations of unanticipated 
responses of the test system are accurately recorded and verified;
    (iii) Unforeseen circumstances that may affect the quality and 
integrity of the study are noted when they occur, and corrective action 
is taken and documented;
    (iv) Test systems are as specified in the protocol;
    (v) All applicable good laboratory practice regulations are 
followed; and
    (vi) All raw data, documentation, protocols, specimens, and final 
reports are archived properly during or at the close of the study.
    (4) Quality assurance unit. A testing facility shall have a quality 
assurance unit which shall be responsible for monitoring each study to 
assure management that the facilities, equipment, personnel, methods, 
practices, records, and controls are in conformance with the regulations 
in this section. For any given study, the quality assurance unit shall 
be entirely separate from and independent of the personnel engaged in 
the direction and conduct of that study. The quality assurance unit 
shall conduct inspections and maintain records appropriate to the study.
    (i) Quality assurance unit duties. (A) Maintain a copy of a master 
schedule sheet of all studies conducted at the testing facility indexed 
by test substance and containing the test system, nature of study, date 
study was initiated, current status of each study, identity of the 
sponsor, and name of the study director.
    (B) Maintain copies of all protocols pertaining to all studies for 
which the unit is responsible.
    (C) Inspect each study at intervals adequate to ensure the integrity 
of the study and maintain written and properly signed records of each 
periodic inspection showing the date of the inspection, the study 
inspected, the phase or segment of the study inspected, the person 
performing the inspection, findings and problems, action recommended and 
taken to resolve existing problems, and any scheduled date for re-
inspection. Any problems which are likely to affect study integrity 
found during the course of an inspection shall be brought to the 
attention of the study director and management immediately.
    (D) Periodically submit to management and the study director written 
status reports on each study, noting any problems and the corrective 
actions taken.
    (E) Determine that no deviations from approved protocols or standard 
operating procedures were made without proper authorization and 
documentation.
    (F) Review the final study report to assure that such report 
accurately describes the methods and standard operating procedures, and 
that the reported results accurately reflect the raw data of the study.
    (G) Prepare and sign a statement to be included with the final study 
report which shall specify the dates inspections were made and findings 
reported to management and to the study director.

[[Page 64]]

    (ii) The responsibilities and procedures applicable to the quality 
assurance unit, the records maintained by the quality assurance unit, 
and the method of indexing such records shall be in writing and shall be 
maintained. These items including inspection dates, the study inspected, 
the phase or segment of the study inspected, and the name of the 
individual performing the inspection shall be made available for 
inspection to authorized employees or duly designated representatives of 
EPA.
    (iii) An authorized employee or a duly designated representative of 
EPA shall have access to the written procedures established for the 
inspection and may request test facility management to certify that 
inspections are being implemented, performed, documented, and followed 
up in accordance with this paragraph.
    (c) Facilities--(1) General. Each testing facility shall be of 
suitable size and construction to facilitate the proper conduct of 
studies. Testing facilities which are not completely located within an 
indoor controlled environment shall be of suitable location/proximity to 
facilitate the proper conduct of studies. Testing facilities shall be 
designed so that there is a degree of separation that will prevent any 
function or activity from having an adverse effect on the study.
    (2) Test system care facilities. (i) A testing facility shall have a 
sufficient number of animal rooms or other test system areas, as needed, 
to ensure proper separation of species or test systems, quarantine or 
isolation of animals or other test systems, and routine or specialized 
housing of animals or other test systems.
    (ii) A testing facility shall have a number of animal rooms or other 
test system areas separate from those described in paragraph (a) of this 
section to ensure isolation of studies being done with test systems or 
test, control, and reference substances known to be biohazardous, 
including volatile atmospheres and aerosols, radioactive materials, and 
infectious agents. The animal handling facility must operate under the 
supervision of a veterinarian.
    (iii) Separate areas shall be provided, as appropriate, for the 
diagnosis, treatment, and control of laboratory test system diseases. 
These areas shall provide effective isolation for the housing of test 
systems either known or suspected of being diseased, or of being 
carriers of disease, from other test systems.
    (iv) Facilities shall have proper provisions for collection and 
disposal of contaminated air, water, or other spent materials. When 
animals are housed, facilities shall exist for the collection and 
disposal of all animal waste and refuse or for safe sanitary storage of 
waste before removal from the testing facility. Disposal facilities 
shall be so provided and operated as to minimize vermin infestation, 
odors, disease hazards, and environmental contamination.
    (v) Facilities shall have provisions to regulate environmental 
conditions (e.g., temperature, humidity, day length, etc.) as specified 
in the protocol.
    (3) Test system supply/operation areas. (i) There shall be storage 
areas, as needed, for feed, bedding, supplies, and equipment. Storage 
areas for feed and bedding shall be separated from areas where the test 
systems are located and shall be protected against infestation or 
contamination. Perishable supplies shall be preserved by appropriate 
means.
    (ii) Separate laboratory space and other space shall be provided, as 
needed, for the performance of the routine and specialized procedures 
required by studies.
    (4) Facilities for handling test fuels and fuel/additive mixtures 
and reference substances. (i) As necessary to prevent contamination or 
mixups, there shall be separate areas for:
    (A) Receipt and storage of the test fuels and fuel/additive mixtures 
and reference substances;
    (B) Mixing of the test fuels, fuel/additive mixtures, and reference 
substances with a carrier, i.e., liquid hydrocarbon; and
    (C) Storage of the test fuels, fuel/additive mixtures, and reference 
substance/carrier mixtures.
    (ii) Storage areas for test fuels and fuel/additive mixtures and 
reference substances and for reference mixtures shall be separate from 
areas housing

[[Page 65]]

the test systems and shall be adequate to preserve the identity, 
strength, purity, and stability of the substances and mixtures.
    (5) Specimen and data storage facilities. Space shall be secured for 
archives for the storage and retrieval of all raw data and specimens 
from completed studies.
    (d) Equipment--(1) Equipment design. Equipment used in the 
generation, measurement, or assessment of data and equipment used for 
facility environmental control shall be of appropriate design and 
adequate capacity to function according to the protocol and shall be 
suitably located for operation, inspection, cleaning, and maintenance.
    (2) Maintenance and calibration of equipment. (i) Equipment shall be 
adequately inspected, cleaned, and maintained. Equipment used for the 
generation, measurement, or assessment of data shall be adequately 
tested, calibrated, and/or standardized.
    (ii) The written standard operating procedures required under Sec.  
79.60(e)(1)(ii)(K) shall set forth in sufficient detail the methods, 
materials, and schedules to be used in the routine inspection, cleaning, 
maintenance, testing, calibration, and/or standardization of equipment, 
and shall specify, when appropriate, remedial action to be taken in the 
event of failure or malfunction of equipment. The written standard 
operating procedures shall designate the person responsible for the 
performance of each operation.
    (iii) Written records shall be maintained of all inspection, 
maintenance, testing, calibrating, and/or standardizing operations. 
These records, containing the date of the operation, shall describe 
whether the maintenance operations were routine and followed the written 
standard operating procedures. Written records shall be kept of non-
routine repairs performed on equipment as a result of failure and 
malfunction. Such records shall document the nature of the defect, how 
and when the defect was discovered, and any remedial action taken in 
response to the defect.
    (e) Testing Facilities Operation--(1) Standard operating procedures. 
(i) A testing facility shall have standard operating procedures in 
writing, setting forth study methods that management is satisfied are 
adequate to insure the quality and integrity of the data generated in 
the course of a study. All deviations in a study from standard operating 
procedures shall be authorized by the study director and shall be 
documented in the raw data. Significant changes in established standard 
operating procedures shall be properly authorized in writing by 
management.
    (ii) Standard operating procedures shall be established for, but not 
limited to, the following:
    (A) Test system room preparation;
    (B) Test system care;
    (C) Receipt, identification, storage, handling, mixing, and method 
of sampling of test fuels and fuel/additive mixtures and reference 
substances;
    (D) Test system observations;
    (E) Laboratory or other tests;
    (F) Handling of test animals found moribund or dead during study;
    (G) Necropsy or postmortem examination of test animals;
    (H) Collection and identification of specimens;
    (I) Histopathology
    (J) Data handling, storage and retrieval.
    (K) Maintenance and calibration of equipment.
    (L) Transfer, proper placement, and identification of test systems.
    (iii) Each laboratory or other study area shall have immediately 
available manuals and standard operating procedures relative to the 
laboratory procedures being performed. Published literature may be used 
as a supplement to standard operating procedures.
    (iv) A historical file of standard operating procedures, and all 
revisions thereof, including the dates of such revisions, shall be 
maintained.
    (2) Reagents and solutions. All reagents and solutions in the 
laboratory areas shall be labeled to indicate identity, titer or 
concentration, storage requirements, and expiration date. Deteriorated 
or outdated reagents and solutions shall not be used.
    (3) Animal and other test system care. (i) There shall be standard 
operating procedures for the housing, feeding, handling, and care of 
animals and other test systems.

[[Page 66]]

    (ii) All newly received test systems from outside sources shall be 
isolated and their health status or appropriateness for the study shall 
be evaluated. This evaluation shall be in accordance with acceptable 
veterinary medical practice or scientific methods.
    (iii) At the initiation of a study, test systems shall be free of 
any disease or condition that might interfere with the purpose or 
conduct of the study. If during the course of the study, the test 
systems contract such a disease or condition, the diseased test systems 
shall be isolated, if necessary. These test systems may be treated for 
disease or signs of disease provided that such treatment does not 
interfere with the study. The diagnosis, authorization of treatment, 
description of treatment, and each date of treatment shall be documented 
and shall be retained.
    (iv) When laboratory procedures require test animals to be 
manipulated and observed over an extended period of time or when studies 
require test animals to be removed from and returned to their housing 
units for any reason (e.g., cage cleaning, treatment, etc.), these test 
systems shall receive appropriate identification (e.g., tattoo, color 
code, etc.). Test system identification shall conform with current 
laboratory animal handling practice. All information needed to 
specifically identify each test system within the test system-housing 
unit shall appear on the outside of that unit. Suckling animals are 
excluded from the requirement of individual identification unless 
otherwise specified in the protocol.
    (v) Except as specified in paragraph (e)(3)(v)(A) of this section, 
test animals of different species shall be housed in separate rooms when 
necessary. Test animals of the same species, but used in different 
studies, shall not ordinarily be housed in the same room when 
inadvertent exposure to the test or reference substances or test system 
mixup could affect the outcome of either study. If such mixed housing is 
necessary, adequate differentiation by space and identification shall be 
made.
    (A) Test systems that may be used in multispecies tests need not be 
housed in separate rooms, provided that they are adequately segregated 
to avoid mixup and cross-contamination.
    (B) [Reserved]
    (vi) Cages, racks, pens, enclosures, and other holding, rearing, and 
breeding areas, and accessory equipment, shall be cleaned and sanitized 
at appropriate intervals.
    (vii) Feed and water used for the test animals shall be analyzed 
periodically to ensure that contaminants known to be capable of 
interfering with the study and reasonably expected to be present in such 
feed or water are not present at greater than trace levels. 
Documentation of such analyses shall be maintained as raw data.
    (viii) Bedding used in animal cages or pens shall not interfere with 
the purpose or conduct of the study and shall be changed as often as 
necessary to keep the animals dry and clean.
    (ix) If any pest control materials are used, the use shall be 
documented. Cleaning and pest control materials that interfere with the 
study shall not be used.
    (x) All test systems shall be acclimatized to the environmental 
conditions of the test, prior to their use in a study.
    (f) Test fuels, additive/base fuel mixtures, and reference 
substances--(1) Test fuel, fuel/additive mixture, and reference 
substance identity. (i) The product brand name/service mark, strength, 
purity, content, or other characteristics which appropriately define the 
test fuel, fuel/additive mixture, or reference substance shall be 
reported for each batch and shall be documented before its use in a 
study. Methods of synthesis, fabrication, or derivation, as appropriate, 
of the test fuel, fuel/additive mixture, or reference substance shall be 
documented by the sponsor or the testing facility, and such location of 
documentation shall be specified.
    (ii) The stability of test fuel, fuel/additive mixture, and 
reference substances under storage conditions at the test site shall be 
known for all studies.
    (2) Test fuel, additive/base fuel mixture, and reference substance 
handling. Procedures shall be established for a system for the handling 
of the test fuel, fuel/additive mixture, and reference substance(s) to 
ensure that:
    (i) There is proper storage.
    (ii) Distribution is made in a manner designed to preclude the 
possibility of

[[Page 67]]

contamination, deterioration, or damage.
    (iii) Proper identification is maintained throughout the 
distribution process.
    (iv) The receipt and distribution of each batch is documented. Such 
documentation shall include the date and quantity of each batch 
distributed or returned.
    (3) Mixtures of test emissions or reference solutions with carriers.
    (i) For test emissions or each reference substance mixed with a 
carrier, tests by appropriate analytical methods shall be conducted:
    (A) To determine the uniformity of the test substance and to 
determine, periodically, the concentration of the test emissions or 
reference substance in the mixture;
    (B) When relevant to the conduct of the experiment, to determine the 
solubility of each reference substance in the carrier mixture before the 
experimental start date; and
    (C) To determine the stability of test emissions or a reference 
solution in the test substance before the experimental start date or 
concomitantly according to written standard operating procedures, which 
provide for periodic analysis of each batch.
    (ii) Where any of the components of the reference substance/carrier 
mixture has an expiration date, that date shall be clearly shown on the 
container. If more than one component has an expiration date, the 
earliest date shall be shown.
    (iii) If a chemical or physical agent is used to facilitate the 
mixing of a test substance with a carrier, assurance shall be provided 
that the agent does not interfere with the integrity of the test.
    (g) Protocol for and conduct of a study--(1) Protocol. (i) Each 
study shall have a written protocol that clearly indicates the 
objectives and all methods for the conduct of the study. The protocol 
shall contain but shall not be limited to the following information:
    (A) A descriptive title and statement of the purpose of the study.
    (B) Identification of the test fuel, fuel/additive mixture, and 
reference substance by name, chemical abstracts service (CAS) number or 
code number, as applicable.
    (C) The name and address of the sponsor and the name and address of 
the testing facility at which the study is being conducted.
    (D) The proposed experimental start and termination dates.
    (E) Justification for selection of the test system, as necessary.
    (F) Where applicable, the number, body weight, sex, source of 
supply, species, strain, substrain, and age of the test system.
    (G) The procedure for identification of the test system.
    (H) A description of the experimental design, including methods for 
the control of bias.
    (I) Where applicable, a description and/or identification of the 
diet used in the study. The description shall include specifications for 
acceptable levels of contaminants that are reasonably expected to be 
present in the dietary materials and are known to be capable of 
interfering with the purpose or conduct of the study if present at 
levels greater than established by the specifications.
    (J) Each concentration level, expressed in milligrams per cubic 
meter of air or other appropriate units, of the test or reference 
substance to be administered and the frequency of administration.
    (K) The type and frequency of tests, analyses, and measurements to 
be made.
    (L) The records to be maintained.
    (M) The date of approval of the protocol by the sponsor and the 
dated signature of the study director.
    (N) A statement of the proposed statistical method.
    (ii) All changes in or revisions of an approved protocol and the 
reasons therefor shall be documented, signed by the study director, 
dated, and maintained with the protocol.
    (2) Conduct of a study. (i) The study shall be conducted in 
accordance with the protocol.
    (ii) The test systems shall be monitored in conformity with the 
protocol.
    (iii) Specimens shall be identified by test system, study, nature, 
and date of collection. This information shall be located on the 
specimen container or

[[Page 68]]

shall accompany the specimen in a manner that precludes error in the 
recording and storage of data.
    (iv) In animal studies where histopathology is required, records of 
gross findings for a specimen from postmortem observations shall be 
available to a pathologist when examining that specimen 
histopathologically.
    (v) All data generated during the conduct of a study, except those 
that are generated by automated data collection systems, shall be 
recorded directly, promptly, and legibly in ink. All data entries shall 
be dated on the day of entry and signed or initialed by the person 
entering the data. Any change in entries shall be made so as not to 
obscure the original entry, shall indicate the reason for such change, 
and shall be dated and signed or identified at the time of the change. 
In automated data collection systems, the individual responsible for 
direct data input shall be identified at the time of data input. Any 
change in automated data entries shall be made so as not to obscure the 
original entry, shall indicate the reason for change, shall be dated, 
and the responsible individual shall be identified.
    (h) Records and Reports--(1) Reporting of study results. (i) A final 
report shall be prepared for each study and shall include, but not 
necessarily be limited to, the following:
    (A) Name and address of the facility performing the study and the 
dates on which the study was initiated and was completed, terminated, or 
discontinued.
    (B) Objectives and procedures stated in the approved protocol, 
including any changes in the original protocol.
    (C) Statistical methods employed for analyzing the data.
    (D) The test fuel, additive/base fuel mixture, and test and 
reference substances identified by name, chemical abstracts service 
(CAS) number or code number, strength, purity, content, or other 
appropriate characteristics.
    (E) Stability, and when relevant to the conduct of the study, the 
solubility of the test emissions and reference substances under the 
conditions of administration.
    (F) A description of the methods used.
    (G) A description of the test system used. Where applicable, the 
final report shall include the number of animals or other test organisms 
used, sex, body weight range, source of supply, species, strain and 
substrain, age, and procedure used for identification.
    (H) A description of the concentration regimen as daily exposure 
period, i.e., number of hours, and exposure duration, i.e., number of 
days.
    (I) A description of all circumstances that may have affected the 
quality or integrity of the data.
    (J) The name of the study director, the names of other scientists or 
professionals and the names of all supervisory personnel, involved in 
the study.
    (K) A description of the transformations, calculations, or 
operations performed on the data, a summary and analysis of the data, 
and a statement of the conclusions drawn from the analysis.
    (L) The signed and dated reports of each of the individual 
scientists or other professionals involved in the study, including each 
person who, at the request or direction of the testing facility or 
sponsor, conducted an analysis or evaluation of data or specimens from 
the study after data generation was completed.
    (M) The locations where all specimens, raw data, and the final 
report are to be kept or stored.
    (N) The statement, prepared and signed by the quality assurance 
unit, as described in Sec.  79.60(b)(4)(i)(G).
    (ii) The final report shall be signed and dated by the study 
director.
    (iii) Corrections or additions to a final report shall be in the 
form of an amendment by the study director. The amendment shall clearly 
identify that part of the final report that is being added to or 
corrected and the reasons for the correction or addition, and shall be 
signed and dated by the person responsible. Modification of a final 
report to comply with the submission requirements of EPA does not 
constitute a correction, addition, or amendment to a final report.

[[Page 69]]

    (iv) A copy of the final report and of any amendment to it shall be 
maintained by the sponsor and the test facility.
    (2) Storage and retrieval of records and data. (i) All raw data, 
documentation, records, protocols, specimens, and final reports 
generated as a result of a study shall be retained. Specimens obtained 
from mutagenicity tests, wet specimens of blood, urine, feces, and 
biological fluids, do not need to be retained after quality assurance 
verification. Correspondence and other documents relating to 
interpretation and evaluation of data, other than those documents 
contained in the final report, also shall be retained.
    (ii) All raw data, documentation, protocols, specimens, and interim 
and final reports shall be archived for orderly storage and expedient 
retrieval. Conditions of storage shall minimize deterioration of the 
documents or specimens in accordance with the requirements for the time 
period of their retention and the nature of the documents of specimens. 
A testing facility may contract with commercial archives to provide a 
repository for all material to be retained. Raw data and specimens may 
be retained elsewhere provided that the archives have specific reference 
to those other locations.
    (iii) An individual shall be identified as responsible for the 
archiving of records.
    (iv) Access to archived material shall require authorization and 
documentation.
    (v) Archived material shall be indexed to permit expedient 
retrieval.
    (3) Retention of records. (i) Record retention requirements set 
forth in this section do not supersede the record retention requirements 
of any other regulations in this subchapter.
    (ii) Except as provided in paragraph (h)(3)(iii) of this section, 
documentation records, raw data, and specimens pertaining to a study and 
required to be retained by this part shall be archived for a period of 
at least ten years following the completion of the study.
    (iii) Wet specimens, samples of test fuel, additive/base fuel 
mixtures, or reference substances, and specially prepared material which 
are relatively fragile and differ markedly in stability and quality 
during storage, shall be retained only as long as the quality of the 
preparation affords evaluation. Specimens obtained from mutagenicity 
tests, wet specimens of blood, urine, feces, biological fluids, do not 
need to be retained after quality assurance verification. In no case 
shall retention be required for a longer period than that set forth in 
paragraph (h)(3)(ii) of this section.
    (iv) The master schedule sheet, copies of protocols, and records of 
quality assurance inspections, as required by Sec.  79.60(b)(4)(iii) 
shall be maintained by the quality assurance unit as an easily 
accessible system of records for the period of time specified in 
paragraph (h)(3)(ii) of this section.
    (v) Summaries of training and experience and job descriptions 
required to be maintained by Sec.  79.60(b)(1)(ii) may be retained along 
with all other testing facility employment records for the length of 
time specified in paragraph (h)(3)(ii) of this section.
    (vi) Records and reports of the maintenance and calibration and 
inspection of equipment, as required by Sec.  79.60(d)(2) (ii) and 
(iii), shall be retained for the length of time specified in paragraph 
(h)(3)(ii) of this section.
    (vii) If a facility conducting testing or an archive contracting 
facility goes out of business, all raw data, documentation, and other 
material specified in this section shall be transferred to the sponsor 
of the study for archival.
    (viii) Records required by this section may be retained either as 
original records or as true copies such as photocopies, microfilm, 
microfiche, or other accurate reproductions of the original records.



Sec.  79.61  Vehicle emissions inhalation exposure guideline.

    (a) Purpose. This guideline provides additional information on 
methodologies required to conduct health effects tests involving 
inhalation exposures to vehicle combustion emissions from fuels or fuel/
additive mixtures. Where this guideline and the other health effects 
testing guidelines in 40 CFR 79.62 through 79.68 specify differing 
values

[[Page 70]]

for the same test parameter, the specifications in the individual health 
test guideline shall prevail for that health effect endpoint.
    (b) Definitions. For the purposes of this section the following 
definitions apply.
    Acute inhalation study means a short-term toxicity test 
characterized by a single exposure by inhalation over a short period of 
time (at least 4 hours and less than 24 hours), followed by at least 14 
days of observation.
    Aerodynamic diameter means the diameter of a sphere of unit density 
that has the same settling velocity as the particle of the test 
substance. It is used to compare particles of different sizes, densities 
and shapes, and to predict where in the respiratory tract such particles 
may be deposited. It applies to the size of aerosol particles.
    Chronic inhalation study means a prolonged and repeated exposure by 
inhalation for the life span of the test animal; technically, two years 
in the rat.
    Concentration means an exposure level. Exposure is expressed as 
weight or volume of test aerosol/substance per volume of air, usually 
mg/m\3\ or as parts per million (ppm) over a given time period. 
Micrograms per cubic meter ([micro]g/m\3\) or parts per billion may be 
appropriate, as well.
    Cumulative toxicity means the adverse effects of repeated exposures 
occurring as a result of prolonged action or increased concentration of 
the administered test substance or its metabolites in the susceptible 
tissues.
    Inhalable diameter means that aerodynamic diameter of a particle 
which is considered to be inhalable for the organism. It is used to 
refer to particles which are capable of being inhaled and may be 
deposited anywhere within the respiratory tract from the trachea to the 
alveoli.
    Mass median aerodynamic diameter (MMAD) means the calculated 
aerodynamic diameter, which divides the particles of an aerosol in half 
based on the mass of the particles. Fifty percent of the particles in 
mass will be larger than the median diameter, and fifty percent will be 
smaller than the median diameter. MMAD describes the particle 
distribution of any aerosol based on the weight and size of the 
particles. MMAD and the geometric standard deviation describe the 
particle-size distribution.
    Material safety data sheet (MSDS) means documentation or information 
on the physical, chemical, and hazardous characteristics of a given 
chemical, usually provided by the product's manufacturer.
    Reynolds number means a dimensionless number that is proportional to 
the ratio of inertial forces to frictional forces acting on a fluid. It 
quantitatively provides a measure of whether flow is laminar or 
turbulent. A fluid traveling through a pipe is fully developed into a 
laminar flow for a Reynolds number less than 2000, and fully developed 
into a turbulent flow for a Reynolds number greater than 4000.
    Subacute inhalation toxicity means the adverse effects occurring as 
a result of the repeated daily exposure of experimental animals to a 
chemical by inhalation for part (less than 10 percent) of a lifespan; 
generally, less than 90 days.
    Subchronic inhalation study means a repeated exposure by inhalation 
for part (approximately 10 percent) of a life span of the exposed test 
animal.
    Toxic effect means an adverse change in the structure or function of 
an experimental animal as a result of exposure to a chemical substance.
    (c) Principles and design criteria of inhalation exposure systems. 
Proper conduct of inhalation toxicity studies of the emissions of fuels 
and additive/fuel mixtures requires that the exposure system be designed 
to ensure the controlled generation of the exposure atmosphere, the 
adequate dilution of the test emissions, delivery of the diluted 
exposure atmosphere to the test animals, and use of appropriate exposure 
chamber systems selected to meet criteria for a given exposure study.
    (1) Emissions generation. Emissions shall be generated according to 
the specifications in 40 CFR 79.57.
    (2) Dilution and delivery systems. (i) The delivery system is the 
means used to transport the emissions from the generation system to the 
exposure system. The dilution system is generally a component of the 
delivery system.
    (ii) Dilution provides control of the emissions concentration 
delivered to

[[Page 71]]

the exposure system, serving the function of diluting the associated 
combustion gases, such as carbon monoxide, carbon dioxide, nitrogen 
oxides, sulfur dioxide and other noxious gases and vapors, to levels 
that will ensure that there are no significant or measurable responses 
in the test animals as a result of exposure to the combustion gases. The 
formation of particle species is strongly dependent on the dilution 
rate, as well.
    (iii) The engine exhaust system shall connect to the first-stage-
dilution section at 90[deg] to the axis of the dilution section. This is 
then connected to a right angle elbow on the center line of the dilution 
section. Engine emissions are injected through the elbow so that exhaust 
flow is concurrent to dilution flow.
    (iv) Materials. In designing the dilution and delivery systems, the 
use of plastic, e.g., PVC and similar materials, copper, brass, and 
aluminum pipe and tubing shall be avoided if there exists a possibility 
of chemical reaction occurring between emissions and tubing. Stainless 
steel pipe and tubing is recommended as the best choice for most 
emission dilution and delivery applications, although glass and teflon 
may be appropriate, as well.
    (v) Flow requirements. (A) Conduit for dilute raw emissions shall be 
of such dimensions as to provide residence times for the emissions on 
the order of less than one second to several seconds before the 
emissions are further diluted and introduced to the test chambers. With 
the high flow rates in the dilute raw emissions conduit, it will be 
necessary to sample various portions of the dilute emissions for 
delivering differing concentrations to the test chambers. The unused 
portions of the emissions stream are normally exhausted to the 
atmosphere outside of the exposure facility.
    (B) Dimensions of the dilute raw exhaust conduit shall be such that, 
at a minimum, the flow Reynolds number is 70,000 or greater (see Mokler, 
et al., 1984 in paragraph (f)(13) of this section). This will maintain 
highly turbulent flow conditions so that there is more complete mixing 
of the exhaust emissions.
    (C) Wall losses. The delivery system shall be designed to minimize 
wall losses. This can be done by sizing the tubing or pipe to maintain 
laminar flow of the diluted emissions to the exposure chamber. A flow 
Reynolds number of 1000-3000 will ensure minimal wall losses. Also, the 
length of and number and degree of bends in the delivery lines to the 
exposure chamber system shall be minimized.
    (D) Whole-body exposure vs. nose-only exposure delivery systems. 
Flow rates through whole-body chamber systems are of the order of 100 
liters per minute to 500 liters per minute. Nose-only systems are on the 
order of less than 50 liters per minute. To maintain laminar flow 
conditions, the principles described in paragraph (c)(2)(v)(C) of this 
section apply to both systems.
    (vi) Dilution requirements. (A) To maintain the water vapor, and 
dissolved organic compounds, in the raw exhaust emissions stream, a 
manufacturer/tester will initially dilute one part emissions with a 
minimum of five parts clean, filtered air (see Hinners, et al., 1979 in 
paragraph (f)(11) of this section). Depending on the water vapor content 
of a particular fuel/additive mixture's combustion emissions and the 
humidity of the dilution air, initial exhaust dilutions as high as 1:15 
or 1:20 may be necessary to maintain the general character of the 
exhaust as it cools, e.g., M100. At this point, it is expected that the 
exhaust stream would be further diluted to more appropriate levels for 
rodent health effects testing.
    (B) A maximum concentration (minimum dilution) of the raw exhaust 
going into the test animal cages is anticipated to lie in the range 
between 1:5 and 1:50 exhaust emissions to clean, filtered air. The 
minimum concentration (maximum dilution) of raw exhaust for health 
effects testing is anticipated to be in range between 1:100 and 1:150. 
Individual manufacturers will treat these ranges as approximations only 
and will determine the optimum range of emission concentrations to 
elicit effects in Tier 2 health testing for their particular fuel/fuel 
additive mixture.
    (3) Exposure chamber systems--(i) Referenced Guidelines. (A) The 
U.S. Department of Health and Human Services

[[Page 72]]

``Guide for the Care and Use of Laboratory Animals'' (Guide), 1985 cited 
in paragraph (c)(3)(ii)(A)(4), and in paragraphs (d)(2)(i), (d)(2)(ii), 
(d)(2)(iii), (d)(4)(ii), and (d)(4)(iii) of this section, has been 
incorporated by reference.
    (B) This incorporation by reference was approved by the Director of 
the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 
51. Copies may be purchased from the Superintendent of Documents, U.S. 
Government Printing Office, Washington, DC 20402. Copies may be 
inspected at U.S. EPA, OAR, 401 M Street SW, Washington, DC 20460 or at 
the National Archives and Records Administration (NARA). For information 
on the availability of this material at NARA, call 202-741-6030, or go 
to: http://www.archives.gov/federal_register/
code_of_federal_regulations/ibr_locations.html.
    (ii) Exposure chambers. There are two basic types of dynamic 
inhalation exposure chambers, whole-body chambers and nose-/head-only 
exposure chambers (see Cheng and Moss, 1989 in paragraph (f)(8) of this 
section).
    (A) Whole-body chambers. (1) The flow rate through a chamber shall 
be maintained at 15 air changes per hour.
    (2) The chambers are usually maintained at a slightly negative 
pressure (0.5 to 1.5 inch of water) to prevent leakage of test substance 
into the exposure room.
    (3) The exposure chamber shall be designed in such a way as to 
provide uniform distribution of exposure concentrations in all 
compartments (see Cheng et al., 1989 in paragraph (f)(7) of this 
section).
    (4) Animals are housed in separate compartments inside the chamber, 
where the whole surface area of an animal is exposed to the test 
material. The spaces required for different animal species shall follow 
the Guide. In general, the volume of animal bodies occupy less than 5 
percent of the chamber volume.
    (B) Head/nose-only exposure chambers. (1) In head/nose-only exposure 
chambers, only the head (oronasal) portion of the animal is exposed to 
the test material.
    (2) The chamber volume and flow rates are much less than in the 
whole-body exposure chambers because the subjects are usually restrained 
in a tube holder where the animal's breathing can be easily monitored. 
The head/nose-only exposure chamber is suitable for short-term exposures 
or when use of a small amount of test material is required.
    (iii) Since whole-body exposure appears to be the least stressful 
mode of exposure, it is the preferred method. In general, head/nose only 
exposure, which is sometimes used to avoid concurrent exposure by the 
dermal or oral routes, i.e., grooming, is not recommended because of the 
stress accompanying the restraining of the animals. However, there may 
be specific instances where it may be more appropriate than whole-body 
exposure. The tester shall provide justification for its selection.
    (d) Inhalation exposure procedures--(1) Animal selection. (i) The 
rat is the preferred species for vehicle emission inhalation health 
effects testing. Commonly used laboratory strains shall be used. Any 
rodent species may be used, but the tester shall provide justification 
for the choice of that species.
    (ii) Young adult animals, approximately ten weeks of age for the 
rat, shall be used. At the commencement of the study, the weight 
variation of animals used shall not exceed 20 
percent of the mean weight for each sex. Animals shall be randomly 
assigned to treatment and control groups according to their weight.
    (iii) An equal number of male and female rodents shall be used at 
each concentration level. Situations may arise where use of a single sex 
may be appropriate. Females, in general, shall be nulliparous and 
nonpregnant.
    (iv) The number of animals used at each concentration level and in 
the control group(s) depends on the type of study, number of biological 
end points used in the toxicity evaluation, the pre-determined 
sensitivity of detection and power of significance of the study, and the 
animal species. For an acute study, at least five animals of each sex 
shall be used in each test group. For both the subacute and subchronic 
studies, at least 10 rodents of each sex shall be used in each test 
group. For a chronic study, at least 20 male and 20 female

[[Page 73]]

rodents shall be used in each test group.
    (A) If interim sacrifices are planned, the number of animals shall 
be increased by the number of animals scheduled to be sacrificed during 
the course of the study.
    (B) For a chronic study, the number of animals at the termination of 
the study must be adequate for a meaningful and valid statistical 
evaluation of chronic effects.
    (v) A concurrent control group is required. This group shall be 
exposed to clean, filtered air under conditions identical to those used 
for the group exposed to the test atmosphere.
    (vi) The same species/strain shall be used to make comparisons 
between fuel-only and fuel/additive mixture studies. If another species/
strain is used, the tester shall provide justification for its 
selection.
    (2) Animal handling and care. (i) A key element in the conduct of 
inhalation exposure studies is the proper handling and care of the test 
animal population. Therefore, the exposure conditions must conform 
strictly with the conditions for housing and animal care and use set 
forth in the Guide.
    (ii) In whole-body exposure chambers, animals shall be housed in 
individual caging. The minimum cage size per animal will be in 
accordance with instructions set forth in the Guide.
    (iii) Chambers shall be cleaned and maintained in accordance with 
recommendations and schedules set forth in the Guide.
    (A) Observations shall be made daily with appropriate actions taken 
to minimize loss of animals to the study (e.g., necropsy or 
refrigeration of animals found dead and isolation or sacrifice of weak 
or moribund animals). Exposure systems using head/nose-only exposure 
chambers require no special daily chamber maintenance. Chambers shall be 
inspected to ensure that they are clean, and that there are no 
obstructions in the chamber which would restrict air flow to the 
animals. Whole-body exposure chambers will be inspected on a minimum of 
twice daily, once before exposures and once after exposures.
    (B) Signs of toxicity shall be recorded as they are observed, 
including the time of onset, degree, and duration.
    (C) Cage-side observations shall include, but are not limited to: 
changes in skin, fur, eye and mucous membranes, respiratory, autonomic, 
and central nervous systems, somatomotor activity, and behavioral 
patterns. Particular attention shall be directed to observation of 
tremors, convulsions, salivation, diarrhea, lethargy, sleep, and coma.
    (iv) Food and water will be withheld from animals for head/nose-only 
exposure systems. For whole-body-exposure systems, water only may be 
provided. When the exposure generation system is not operating, food 
will be available ad libitum. During operation of the generation system, 
food will be withheld to avoid possible contamination by emissions.
    (v) At the end of the study period, all survivors in the main study 
population shall be sacrificed. Moribund animals shall be removed and 
sacrificed when observed.
    (3) Concentration levels and selection. (i) In acute and subacute 
toxicity tests, at least three exposure concentrations and a control 
group shall be used and spaced appropriately to produce test groups with 
a range of toxic effects and mortality rates. The data shall be 
sufficient to produce a concentration-response curve and permit an 
acceptable estimation of the median lethal concentration.
    (ii) In subchronic and chronic toxicity tests, testers shall use at 
least three different concentration levels, with a control exposure 
group, to determine a concentration-response relationship. 
Concentrations shall be spaced appropriately to produce test groups with 
a range of toxic effects. The concentration-response data may also be 
sufficient to determine a NOAEL, unless the result of a limit test 
precludes such findings. The criteria for selecting concentration levels 
has been published (40 CFR 798.2450 and 798.3260).
    (A) The highest concentration shall result in toxic effects but not 
produce an incidence of fatalities which would prevent a meaningful 
evaluation of the study.

[[Page 74]]

    (B) The lowest concentration shall not produce toxic effects which 
are directly attributable to the test exposure. Where there is a useful 
estimation of human exposure, the lowest concentration shall exceed 
this.
    (C) The intermediate concentration level(s) shall produce minimal 
observable toxic effects. If more than one intermediate concentration 
level is used, the concentrations shall be spaced to produce a gradation 
of toxic effects.
    (D) In the low, intermediate, and control exposure groups, the 
incidence of fatalities shall be low to absent, so as not to preclude a 
meaningful evaluation of the results.
    (4) Exposure chamber environmental conditions. The following 
environmental conditions in the exposure chamber are critical to the 
maintenance of the test animals: flow; temperature; relative humidity; 
lighting; and noise.
    (i) Filtered and conditioned air shall be used during exposure, to 
dilute the exhaust emissions, and during non- exposure periods to 
maintain environmental conditions that are free of trace gases, dusts, 
and microorganisms on the test animals. Twelve to fifteen air changes 
per hour will be provided at all times to whole-body-exposure chambers. 
The minimum air flow rate for head/nose-only exposure chambers will be a 
function of the number of animals and the average minute volume of the 
animals:

Qminimum(L/min) = 2 x number of animals x average minute 
volume

(see Cheng and Moss, 1989 in paragraph (f)(8) of this section).
    (ii) Recommended ranges of temperature for various species are given 
in the Guide. The recommended temperature ranges will be used for 
establishing temperature conditions of whole-body- exposure chambers. 
For rodents in whole-body-exposure chambers, the recommended temperature 
is 22 [deg]C 2 [deg]C and for rabbits, it is 20 
[deg]C 3 [deg]C. Temperature ranges have not been 
established for head/nose-only tubes; however, recommended maximum 
temperature limits have been established at the Inhalation Toxicology 
Research Institute (see Barr, 1988 in paragraph (f)(1) of this section). 
Maximum temperature for rats and mice in head/nose-only tubes is 23 
[deg]C.
    (iii) Relative humidity. The relative humidity in the chamber air is 
important for heat balance and shall be maintained between 40 percent 
and 60 percent, but in certain instances, this may not be practicable. 
Testers shall follow Guide recommends for a 30 percent to 70 percent 
relative humidity range for rodents in exposure chambers.
    (iv) Lighting. Light intensity of 30 foot candles at 3 ft. from the 
floor of the exposure facility is recommended (see Rao, 1986 in 
paragraph (f)(16) of this section).
    (5) Exposure conditions. Unless precluded by the requirements of a 
particular test protocol, animal subjects shall be exposed to the test 
atmosphere based on a nominal 5-day-per-week regimen, subject to the 
following rules:
    (i) Each daily exposure must be at least 6 hours plus the time 
necessary to build the chamber atmosphere to 90 percent of the target 
exposure atmosphere. Interruptions of daily exposures caused by 
technical difficulties, if infrequent in occurrence and limited in 
duration, may be made up the same day by adding equivalent exposure time 
after the technical problem has been corrected and the exposure 
atmosphere restored to the required level.
    (ii) Normally, no more than two non-exposure days may occur 
consecutively during the test period. However, if a third consecutive 
non-exposure day should occur due to circumstances beyond the tester's 
control, it may be remedied by adding a supplementary exposure day. 
Federal and other holidays do not constitute such circumstances. 
Whenever possible, a make-up day should be taken at the first 
opportunity, i.e., on the next day which would otherwise have been an 
intentional non-exposure day. If a compensatory day must be scheduled at 
the end of the standard test period, then it may occur either:
    (A) Immediately following the last standard exposure day, with no 
intervening non-exposure days; or
    (B) With up to two intervening non-exposure days, provided that no 
fewer than two consecutive compensatory exposure days are completed 
before the

[[Page 75]]

test is terminated and the animals sacrificed.
    (iii) Except as allowed in paragraph (d)(5)(ii)(B) of this section, 
in no case shall there be fewer than four exposure days per week at any 
time during the test period.
    (iv) A nominal 90-day (13-week) subchronic test period shall include 
no fewer than 63 total exposure days.
    (6) Exposure atmosphere. (i) The exposure atmosphere shall be held 
as constant as is practicable and must be monitored continuously or 
intermittently, depending on the method of analysis, to ensure that 
exposure levels are at the target values or within stated limits during 
the exposure period. Sampling methodology will be determined based on 
the type of generation system and the type of exposure chamber system 
specified for the exposure study.
    (A) Integrated samples of test atmosphere aerosol shall be taken 
daily during the exposure period from a single representative sample 
port in the chamber near the breathing zone of the animals. Gas samples 
shall be taken daily to determine concentrations (ppm) of the major 
vapor components of the test atmosphere including CO, CO2, 
NOX, SO2, and total hydrocarbons.
    (B) To ensure that animals in different locations of the chamber 
receive a similar exposure atmosphere, distribution of an aerosol or 
vapor concentration in exposure chambers can be determined without 
animals during the developmental phase of the study, or it can be 
determined with animals early in the study. For head/nose-only exposure 
chambers, it may not be possible to monitor the chamber distribution 
during the exposure, because the exposure port contains the animal.
    (C) During the development of the emissions generation system, 
particle size analysis shall be performed to establish the stability of 
an aerosol concentration with respect to particle size. Over the course 
of the exposure, analysis shall be conducted as often as is necessary to 
determine the consistency of particle size distribution.
    (D) Chamber rise and fall times. The rise time required for the 
exposure concentration to reach 90 percent of the stable concentration 
after the generator is turned on, and the fall time when the chamber 
concentration decreases to 10 percent of the stable concentration after 
the generation system is stopped shall be determined in the 
developmental phase of the study. Time-integrated samples collected for 
calculating exposure concentrations shall be taken after the rise time. 
The daily exposure time is exclusive of the rise or the fall time.
    (ii) Instrumentation used for a given study will be determined based 
on the type of generation system and the type of exposure chamber system 
specified for the exposure study.
    (A) For exhaust studies, combustion gases shall be sampled by 
collecting exposure air in bags and then analyzing the collected air 
sample to determine major components of the combustion gas using gas 
analyzers. Exposure chambers can also be connected to gas analyzers 
directly by using sampling lines and switching valves. Samples can be 
taken more frequently using the latter method. Aerosol instruments, such 
as photometers, or time-integrated gravimetric determination may be used 
to determine the stability of any aerosol concentration in the chamber.
    (B) For evaporative emission studies, concentration of fuel vapors 
can usually be determined by using a gas chromatograph (GC) and/or 
infrared (IR) spectrometry. Grab samples for intermittent sampling can 
be taken from the chamber by using bubble samplers with the appropriate 
solvent to collect the vapors, or by collecting a small volume of air in 
a syringe. Intermediate or continuous monitoring of the chamber 
concentration is also possible by connecting the chamber with a GC or IR 
detector.
    (7) Monitoring chamber environmental conditions may be performed by 
a computer system or by exposure system operating personnel.
    (i) The flow-metering device used for the exposure chambers must be 
a continuous monitoring device, and actual flow measurements must be 
recorded at least every 30 minutes. Accuracy must be 5 percent of full scale range. Measurement of air flow 
through the

[[Page 76]]

exposure chamber may be accomplished using any device that has 
sufficient range to accurately measure the air flow for the given 
chamber. Types of flow metering devices include rotameters, orifice 
meters, venturi meters, critical orifices, and turbinemeters (see 
Benedict, 1984 in paragraph (f)(4) and Spitzer, 1984 in paragraph 
(f)(17) of this section).
    (ii) Pressure. Pressure measurement may be accomplished using 
manometers, electronic pressure transducers, magnehelics, or similar 
devices (see Gillum, 1982 in paragraph (f)(10) of this section). 
Accuracy of the pressure device must be 5 percent 
of full scale range. Pressure measurements must be continuous and 
recorded at least every 30 minutes.
    (iii) Temperature. The temperature of exposure chambers must be 
monitored continuously and recorded at least every 30 minutes. 
Temperature may be measured using thermometers, RTD's, thermocouples, 
thermistors, or other devices (see Benedict, 1984 in paragraph (f)(4) of 
this section). It is necessary to incorporate an alarm system into the 
temperature monitoring system. The exposure operators must be notified 
by the alarm system when the chamber temperature exceeds 26.7 [deg]C (80 
[deg]F). The exposure must be discontinued and emergency procedures 
enacted to immediately reduce temperatures or remove test animals from 
high temperature environment when chamber temperatures exceed 29 [deg]C. 
Accuracy of the temperature monitoring device will be 1 [deg]C for the temperature range of 20-30 [deg]C.
    (iv) Relative humidity. The relative humidity of exposure chambers 
must be monitored continuously and recorded at least every 30 minutes. 
Relative humidity may be measured using various devices (see Chaddock, 
1985 in paragraph (f)(6) of this section).
    (v) Lighting shall be measured quarterly, or once at the beginning, 
middle, and end of the study for shorter studies.
    (vi) Noise level in the exposure chamber(s) shall be measured 
quarterly, or once at the beginning, middle, and end of the study for 
shorter studies.
    (vii) Oxygen content is critical, especially in nose-only chamber 
systems, and shall be greater than or equal to 19 percent in the test 
cages. An oxygen sensor shall be located at a single position in the 
test chamber and a lower alarm limit of 18 percent shall be used to 
activate an alarm system.
    (8) Safety procedures and requirements. In the case of potentially 
explosive test substance concentrations, care shall be taken to avoid 
generating explosive atmospheres.
    (i) It is mandatory that the upper explosive limit (UEL) and lower 
explosive limit (LEL) for the fuel and/or fuel additive(s) that are 
being tested be determined. These limits can be found in the material 
safety data sheets (MSDS) for each substance and in various reference 
texts. The air concentration of the fuel or additive-base fuel mixture 
in the generation system, dilution/delivery system, and the exposure 
chamber system shall be calculated to ensure that explosive limits are 
not present.
    (ii) Storage, handling, and use of fuels or fuel/additive mixtures 
shall follow guidelines given in 29 CFR 1910.106.
    (iii) Monitoring for carbon monoxide (CO) levels is mandatory for 
combustion systems. CO shall be continuously monitored in the immediate 
area of the engine/vehicle system and in the exposure chamber(s).
    (iv) Air samples shall be taken quarterly in the immediate area of 
the vapor generation system and the exposure chamber system, or once at 
the beginning, middle, and end of the study for shorter studies. These 
samples shall be analyzed by methods described in paragraph 
(d)(6)(ii)(B) of this section.
    (v) With the presence of fuels and/or fuel additives, all electrical 
and electronic equipment must be grounded. Also, the dilution/delivery 
system and chamber exposure system must be grounded. Guidelines for 
grounding are given in 29 CFR 1910.304.
    (9) Quality control and quality assurance procedures--(i) Standard 
operating procedures (SOPs). SOPs for exposure operations, sampling 
instruments, animal handling, and analytical methods shall be written 
during the developmental phase of the study.

[[Page 77]]

    (ii) Technicians/operators shall be trained in exposure operation, 
maintenance, and documentation, as appropriate, and their training shall 
be documented.
    (iii) Flow meters, sampling instruments, and balances used in the 
inhalation experiments shall be calibrated with standards during the 
developmental phase to determine their sensitivity, detection limits, 
and linearity. During the exposure period, instruments shall be checked 
for calibration and documented to ensure that each instrument still 
functions properly.
    (iv) The mean exposure concentration shall be within 10 percent of 
the target concentration on 90 percent or more of exposure days. The 
coefficient of variation shall be within 25 percent of target on 90 
percent or more of exposure days. For example, a manufacturer might 
determine a mean exposure concentration of its product's exposure 
emissions by identifying ``marker'' compound(s) typical of the emissions 
of the fuel or fuel/additive mixture under study as a surrogate for the 
total of individual compounds in those exposure emissions. The 
manufacturer would note any concentration changes in the level of the 
``marker'' compound(s) in the sample's daily emissions for biological 
testing.
    (v) The spatial variation of the chamber concentration shall be 10 
percent, or less. If a higher spatial variation is observed during the 
developmental phase, then air mixing in the chamber shall be increased. 
In any case, animals shall be rotated among the various cages in the 
exposure chamber(s) to insure each animal's uniform exposure during the 
study.
    (e) Data and reporting. Data shall be summarized in tabular form, 
showing for each group the number of animals at the start of the test, 
the number of animals showing lesions, the types of lesions, and the 
percentage of animals displaying each type of lesion.
    (1) Treatment of results. All observed results, quantitative and 
incidental, shall be evaluated by an appropriate statistical method. Any 
generally accepted statistical method may be used; the statistical 
methods shall be selected during the design of the study.
    (2) Evaluation of results. The findings of an inhalation toxicity 
study should be evaluated in conjunction with the findings of preceding 
studies and considered in terms of the observed toxic effects and the 
necropsy and histopathological findings. The evaluation will include the 
relationship between the concentration of the test atmosphere and the 
duration of exposure, and the severity of abnormalities, gross lesions, 
identified target organs, body weight changes, effects on mortality and 
any other general or specific toxic effects.
    (3) Test conditions. (i) The exposure apparatus shall be described, 
including:
    (A) The vehicle/engine design and type, the dynamometer, the cooling 
system, if any, the computer control system, and the dilution system for 
exhaust emission generation;
    (B) The evaporative emissions generator model, type, or design and 
its dilution system; and
    (C) Other test conditions, such as the source and quality of mixing 
air, fuel or fuel/additive mixture used, treatment of exhaust air, 
design of exposure chamber and the method of housing animals in a test 
chamber shall be described.
    (ii) The equipment for measuring temperature, humidity, particulate 
aerosol concentrations and size distribution, gas analyzers, fuel vapor 
concentrations, chamber distribution, and rise and fall time shall be 
described.
    (iii) Daily exposure results. The daily record shall document the 
date, the start and stop times of the exposure, number of samples taken 
during the day, daily concentrations determined, calibration of 
instruments, and problems encountered during the exposure. The daily 
exposure data shall be signed by the exposure operator and reviewed and 
signed by the exposure supervisor responsible for the study.
    (4) Exposure data shall be tabulated and presented with mean values 
and a measure of variability (e.g., standard deviation), and shall 
include:
    (i) Airflow rates through the inhalation equipment;
    (ii) Temperature and humidity of air;
    (iii) Chamber concentrations in the chamber breathing zone;

[[Page 78]]

    (iv) Concentration of combustion exhaust gases in the chamber 
breathing zone;
    (v) Particle size distribution (e.g., mass median aerodynamic 
diameter and geometric standard deviation from the mean);
    (vi) Rise and fall time;
    (vii) Chamber concentrations during the non-exposure period; and
    (viii) Distribution of test substance in the chamber.
    (5) Animal data. Tabulation of toxic response data by species, 
strain, sex and exposure level for:
    (i) Number of animals exposed;
    (ii) Number of animals showing signs of toxicity; and
    (iii) Number of animals dying.
    (f) References. For additional background information on this 
exposure guideline, the following references should be consulted.
    (1) Barr, E.B. (1988) Operational Limits for Temperature and Percent 
Oxygen During HM Nose-Only Exposures--Emergency Procedures [interoffice 
memorandum]. Albuquerque, NM: Lovelace Inhalation Toxicology Research 
Institute; May 13.
    (2) Barr, E.B.; Cheng, Y.S.; Mauderly, J.L. (1990) Determination of 
Oxygen Depletion in a Nose-Only Exposure Chamber. Presented at: 1990 
American Association for Aerosol Research; June; Philadelphia, PA: 
American Association for Aerosol Research; abstract no. P2e1.
    (3) Barrow, C.S. (1989) Generation and Characterization of Gases and 
Vapors. In: McClellan, R.O., Henderson, R.F. ed. Concepts in Inhalation 
Toxicology. New York, NY: Hemisphere Publishing Corp., 63-84.
    (4) Benedict, R.P. (1984) Fundamentals of Temperature, Pressure, and 
Flow Measurements. 3rd ed. New York, NY: John Wiley and Sons.
    (5) Cannon, W.C.; Blanton, E.F.; McDonald, K.E. The Flow-Past 
Chamber. (1983) An Improved Nose-Only Exposure System for Rodents. Am. 
Ind. Hyg. Assoc. J. 44: 923-928.
    (6) Chaddock, J.B. ed. (1985) Moisture and humidity. Measurement and 
Control in Science and Industry: Proceedings of the 1985 International 
Symposium on Moisture and Humidity; April 1985; Washington, D.C. 
Research Triangle Park, NC: Instrument Society of America.
    (7) Cheng, Y.S.; Barr, E.B.; Carpenter, R.L.; Benson, J.M.; Hobbs, 
C.H. (1989) Improvement of Aerosol Distribution in Whole-Body Inhalation 
Exposure Chambers. Inhal. Toxicol. 1: 153-166.
    (8) Cheng,Y.S.; Moss, O.R. (1989) Inhalation Exposure Systems. In: 
McClellan, R.O.; Henderson, R.F. ed. Concepts in Inhalation Toxicology. 
New York, NY: Hemisphere Publishing Corp., 19-62.
    (9) Cheng, Y.S.; Yeh, H.C.; Mauderly, J.L.; Mokler, B.V. (1984) 
Characterization of Diesel Exhaust in a Chronic Inhalation Study. Am. 
Ind. Hyg. Assoc. J. 45: 547-555.
    (10) Gillum, D.R. (1982) Industrial Pressure Measurement. Research 
Triangle Park, NC: Instrument Society of America.
    (11) Hinners, R.G.; Burkart, J.K.; Malanchuk, M. (1979) Animal 
Exposure Facility for Diesel Exhaust Studies.
    (12) Kittelson, D.B.; Dolan, D.F. (1979) Diesel exhaust aerosols. In 
Willeke, K. ed. Generation of Aerosols and Facilities for Exposure 
Experiments. Ann Arbor, MI: Ann Arbor Science Publishers Inc., 337-360.
    (13) Mokler, B.V.; Archibeque, F.A.; Beethe, R.L.; Kelly, C.P.J.; 
Lopez, J.A.; Mauderly, J.L.; Stafford, D.L. (1984) Diesel Exhaust 
Exposure System for Animal Studies. Fundamental and Applied Toxicology 
4: 270-277.
    (14) Moore, W.; et al. (1978) Preliminary finding on the Deposition 
and Retention of Automotive Diesel Particulate in Rat Lungs. Proc. of 
Annual Meeting of the Air Pollution Control Assn, 3, paper 78-33.7.
    (15) Raabe, O.G., Bennick, J.E., Light, M.E., Hobbs, C.H., Thomas, 
R.L., Tillery, M.I. (1973) An Improved Apparatus for Acute Inhalation 
Exposure of Rodents to Radioactive Aerosols. Toxicol & Applied 
Pharmaco.; 1973; 26: 264-273.
    (16) Rao, G.N. (1986) Significance of Environmental Factors on the 
Test System. In: Hoover, B.K.; Baldwin, J.K.; Uelner, A.F.; Whitmire, 
C.E.; Davies, C.L.; Bristol, D.W. ed. Managing conduct and data quality 
of toxicology studies. Raleigh, NC: Princeton Scientific Publishing Co., 
Inc.: 173-185.

[[Page 79]]

    (17) Spitzer, D.W. (1984) Industrial Flow Measurement. Research 
Triangle Park, NC: Instrument Society of America.
    (18) 40 CFR part 798, Health effects testing guidelines.
    (19) 29 CFR part 1910, Occupational safety and health standards for 
general industry.
    (20) Federal Register, 42 FR 26748, May 25, 1977.

[59 FR 33093, June 27, 1994, as amended at 61 FR 58746, Nov. 18, 1996; 
61 FR 36512, July 11, 1996]



Sec.  79.62  Subchronic toxicity study with specific health effect
assessments.

    (a) Purpose--(1) General toxicity. This subchronic inhalation study 
is designed to determine a concentration-response relationship for 
potential toxic effects in rats resulting from continuous or repeated 
inhalation exposure to vehicle/engine emissions over a period of 90 
days. A subgroup of perfusion-fixed animals is required, in addition to 
the main study population, for more exacting organ and tissue histology. 
This test will provide screening information on target organ toxicities 
and on concentration levels useful for running chronic studies and 
establishing exposure criteria. Initial information on effective 
concentrations/exposures of the test atmosphere may be determined from 
the literature of previous studies or through concentration range-
finding trials prior to starting this study. This health effects 
screening test is not capable of directly determining those effects 
which have a long latency period for development (e.g., carcinogenicity 
and life-shortening), though it may permit the detremination of a no-
observed-adverse-effect level, or NOAEL.
    (2) Specific health effects assessments (HEAs). These supplemental 
studies are designed to determine the potential for reproductive/
teratologic, carcinogenic, mutagenic, and neurotoxic health effect 
outcomes from vehicle/engine emission exposures. They are done in 
combination with the subchronic toxicity study and paragraph (c) of this 
section or may be done separately as outlined by the appropriate test 
guideline.
    (i) Fertility assessment/teratology. The fertility assessment is an 
in vivo study designed to provide information on potential health 
hazards to the fetus arising from the mother's repeated exposure to 
vehicle/engine emissions before and during her pregnancy. By including a 
mating of test animals, the study provides preliminary data on the 
effects of repeated vehicle/engine emissions exposure on gonadal 
function, conception, and fertility. The fertility assessment/teratology 
guideline is found in Sec.  79.63.
    (ii) Micronucleus (MN) Assay. The MN assay is an in vivo cytogenetic 
test which gives information on potential carcinogenic and/or mutagenic 
effects of exposure to vehicle/engine emissions. The MN assay detects 
damage to the chromosomes or mitotic apparatus of cells in the tissues 
of a test subject exposed repeatedly to vehicle/engine emissions. The 
assay is based on an increase in the frequency of micronucleated 
erythrocytes found in bone marrow from treated animals compared to that 
of control animals. The guideline for the MN assay is found in Sec.  
79.64.
    (iii) Sister Chromatid Exchange (SCE) Assay. The SCE assay is an in 
vivo analysis which gives information on potential mutagenic and/or 
carcinogenic effects of exposure to vehicle/engine emissions. The assay 
detects the ability of a chemical to enhance the exchange of DNA between 
two sister chromatids of a duplicating chromosome. This assay uses 
peripheral blood lymphocytes isolated from an exposed rodent test 
species and grown to confluence in cell culture. The guideline for the 
SCE assay is found in Sec.  79.65.
    (iv) Neurotoxicity (NTX) measures. NTX measures include (A) 
histopathology of specified central and peripheral nervous system 
tissues taken from emission-exposed rodents, and (B) an assay of brain 
tissue levels of glial fibrillary acidic protein (GFAP), a major 
filament protein of astrocytes, from emission-exposed rodents. The 
guidelines for the neurohistopathology and GFAP studies are found in 
Sec.  79.66 and Sec.  79.67, respectively.
    (b) Definitions. For the purposes of this section, the following 
definitions apply:

[[Page 80]]

    No-observed-adverse-effect-level (NOAEL) means the maximum 
concentration used in a test which produces no observed adverse effects. 
A NOAEL is expressed in terms of weight or volume of test substance 
given daily per unit volume of air ([micro]g/L or ppm).
    Subchronic inhalation toxicity means the adverse effects occurring 
as a result of the continuous or repeated daily exposure of experimental 
animals to a chemical by inhalation for part (approximately 10 percent) 
of a life span.
    (c) Principle of the test method. As long as none of the 
requirements of any study are violated by the combination, one or more 
HEAs may be combined with the general toxicity study through concurrent 
exposures of their study populations and/or by sharing the analysis of 
the same animal subjects. Requirements duplicated in combined studies 
need not be repeated. Guidelines for combining HEAs with the general 
toxicity study are as follows.
    (1) Fertility assessment. (i) The number of study animals in the 
test population is increased when the fertility assessment is run 
concurrently with the 90-day toxicity study. A minimum of 40 females per 
test group shall undergo vaginal lavage daily for two weeks before the 
start of the exposure period. The resulting wet smears are examined to 
cull those animals which are acyclic. Twenty-five females shall be 
randomly assigned to a for-breeding group with the balance of females 
assigned to a group for histopathologic examination.
    (ii) All test groups are exposed over a period of 90 days to various 
concentrations of the test atmosphere for a minimum of six hours per 
day. After seven weeks of exposures, analysis of vaginal cell smears 
shall resume on a daily basis for the 25 for-breeding females and shall 
continue for a period of four weeks or until each female in the group is 
confirmed pregnant. Following the ninth week of exposures, each for-
breeding female is housed overnight with a single study male. Matings 
shall continue for as long as two weeks, or until pregnancy is confirmed 
(pregnancy day 0). Pregnant females are only exposed through day 15 of 
their pregnancy while daily exposures continue throughout the course of 
the study for non-pregnant females and study males.
    (iii) On pregnancy day 20, pregnant females are sacrificed and their 
uteri are examined. Pregnancy status and fetal effects are recorded as 
described in Sec.  79.63. At the end of the exposure period, all males 
and non-pregnant females are sacrificed and necropsied. Testes and 
epididymal tissue samples are taken from five perfusion-fixed test 
subjects and histopathological examinations are carried out on the 
remainder of the non-pregnant females and study males.
    (2) Carcinogenicity/mutagenicity(C/M) assessment. When combined with 
the subchronic toxicity study, the main study population is used to 
perform both the in vivo MN and SCE assays. Because of the constant 
turnover of the cells to be analyzed in these assays, a separate study 
population may be used for this assessment. A study population needs 
only to be exposed a minimum of four weeks. At exposure's end, ten 
animals per exposure and control groups are anaesthetized and heart 
punctures are performed on all members. After separating blood 
components, individual lymphocyte cell cultures are set up for SCE 
analysis. One femur from each study subject is also removed and the 
marrow extracted. The marrow is smeared onto a glass slide, and stained 
for analysis of micronuclei in erythrocytes.
    (3) Neurotoxicity (NTX) measures. (i) When combined with this 
subchronic toxicity study, test animals designated for whole-body 
perfusion fixation/lung histology and exposed as part of the main animal 
population are used to perform the neurohistology portion of these 
measures. After the last exposure period, a minimum of ten animals from 
each exposure group shall be preserved in situ with fixative. Sections 
of brain, spinal cord, and proximal sciatic or tibial nerve are then 
cut, processed further in formalin, and mounted for viewing under a 
light microscope. Fibers from the sciatic or tibial nerve sample are 
teased apart for further analysis under the microscope.
    (ii) GFAP assay. After the last exposure period, a minimum of ten 
rodents

[[Page 81]]

from each exposure group shall be sacrificed, and their brains excised 
and divided into regions. The tissue samples are then applied to filter 
paper, washed with anti-GFAP antibody, and visualized with a radio-
labelled Protein A. The filters are quantified for degree of 
immunoreactivity between the antibody and GFAP in the tissue samples. A 
non-radioactive ELISA format is also referenced in the GFAP guideline 
cited in paragraph (a)(2)(iv) of this section. Note: Because the GFAP 
assay requires fresh, i.e., non-preserved, brain tissue, the number of 
test animals may need to be increased to provide an adequate number of 
test subjects to complete the histopathology requirements of both the 
GFAP and the general toxicity portion of the 90-day inhalation study.
    (iii) The start of the exposure period for the NTX measures study 
population may be staggered from that of the main study group to more 
evenly distribute the analytical work required in both study 
populations. The exposures would remain the same in all other respects.
    (d) Test procedures--(1) Animal selection--(i) Species and sex. The 
rat is the recommended species. If another rodent species is used, the 
tester shall provide justification for its selection. Both sexes shall 
be used in any assessment unless it is demonstrated that one sex is 
refractory to the effects of exposure.
    (ii) Age and number. Rats shall be at least ten weeks of age at the 
beginning of the study exposure. The number of animals necessary for 
individual health effect outcomes is as follows:
    (A) Thirty rodents per concentration level/group, fifteen of each 
sex, shall be used to satisfy the reporting requirements of the 90-day 
toxicity study. Ten animals per concentration level/group shall be 
designated for whole body perfusion with fixative (by gravity) for lung 
studies, and neurohistology and testes studies, as appropriate.
    (B) Thirty-five rodents, 25 females and ten males, shall be added 
for each test concentration or control group when combining a 90-day 
toxicity study with a fertility assessment.
    (C) The tester shall provide a group of 10 animals (five animals per 
sex per experimental/control groups) in addition to the main test 
population when performing the GFAP neurotoxicity HEA.
    (2) Recovery group. The manufacturer shall include a group of 20 
animals (10 animals per sex) in the test population, exposing them to 
the highest concentration level for the entire length of the study's 
exposure period. This group shall then be observed for reversibility, 
persistence, or delayed occurrence of toxic effects during a post-
exposure period of not less than 28 days.
    (3) Inhalation exposure. (i) All data developed within this study 
shall be in accordance with good laboratory practice provisions under 
Sec.  79.60.
    (ii) The general conduct of this study shall be in accordance with 
the vehicle emissions inhalation exposure guideline in Sec.  79.61.
    (4) Observation of animals. (i) All toxicological (e.g., weight 
loss) and neurological signs (e.g., motor disturbance) shall be recorded 
frequently enough to observe any abnormality, and not less than weekly 
for all study animals. Animals shall be weighed weekly.
    (ii) The following is a minimal list of measures that shall be 
noted:
    (A) Body weight;
    (B) Subject's reactivity to general stimuli such as removal from the 
cage or handling;
    (C) Description, incidence, and severity of any convulsions, 
tremors, or abnormal motor movements in the home cage;
    (D) Descriptions and incidence of posture and gait abnormalities 
observed in the home cage;
    (E) Description and incidence of any unusual or abnormal behaviors, 
excessive or repetitive actions (stereotypies), emaciation, dehydration, 
hypotonia or hypertonia, altered fur appearance, red or crusty deposits 
around the eyes, nose, or mouth, and any other observations that may 
facilitate interpretation of the data.
    (iii) Any animal which dies during the test is necropsied as soon as 
possible after discovery.
    (5) Clinical examinations. (i) The following examinations shall be 
performed on the twenty animals designated as the 90-day study 
population, exclusive of pregnant dams and those

[[Page 82]]

study animals targeted for perfusion by gravity:
    (A) The following hematology determinations shall be carried out at 
least two times during the test period (after 30 days of exposure and 
just prior to terminal sacrifice at the end of the exposure period): 
hematocrit, hemoglobin concentration, erythrocyte count, total and 
differential leukocyte count, and a measure of clotting potential such 
as prothrombin time, thromboplastin time, or platelet count.
    (B) Clinical biochemistry determinations on blood shall be carried 
out at least two times during the test period, after 30 days of exposure 
and just prior to terminal sacrifice at the end of the exposure period, 
on all groups of animals including concurrent controls. Clinical 
biochemical testing shall include assessment of electrolyte balance, 
carbohydrate metabolism, and liver and kidney function. The selection of 
specific tests will be influenced by observations on the mode of action 
of the substance. In the absence of more specific tests, the following 
determinations may be made: calcium, phosphorus, chloride, sodium, 
potassium, fasting glucose (with period of fasting appropriate to the 
species), serum alanine aminotransferase, serum aspartate 
aminotransferase, sorbitol dehydrogenase, gamma glutamyl transpeptidase, 
urea nitrogen, albumen, blood creatinine, methemoglobin, bile acids, 
total bilirubin, and total serum protein measurements. Additional 
clinical biochemistry shall be employed, where necessary, to extend the 
investigation of observed effects, e.g., analyses of lipids, hormones, 
acid/base balance, and cholinesterase activity.
    (ii) The following examinations shall initially be performed on the 
high concentration and control groups only:
    (A) Ophthalmological examination, using an ophthalmoscope or 
equivalent suitable equipment, shall be made prior to exposure to the 
test substance and at the termination of the study. If changes in the 
eyes are detected, all animals shall be examined.
    (B) Urinalysis is not required on a routine basis, but shall be done 
when there is an indication based on expected and/or observed toxicity.
    (iii) Preservation by whole-body perfusion of fixative into the 
anaesthetized animal for lung histology of ten animals from the 90-day 
study population for each experimental and control group.
    (6) Gross pathology. With the exception of the whole body perfusion-
fixed test animals cited in paragraph (d)(1)(ii)(A) of this section, all 
rodents shall be subjected to a full gross necropsy which includes 
examination of the external surface of the body, all orifices and the 
cranial, thoracic, and abdominal cavities and their contents. Gross 
pathology shall be performed on the following organs and tissues:
    (i) The liver, kidneys, lungs, adrenals, brain, and gonads, 
including uterus, ovaries, testes, epididymides, seminal vesicles (with 
coagulating glands), and prostate, constitute the group of target organs 
for histology and shall be weighed as soon as possible after dissection 
to avoid drying. In addition, for other than rodent test species, the 
thyroid with parathyroids, when present, shall also be weighed as soon 
as possible after dissection to avoid drying.
    (ii) The following organs and tissues, or representative samples 
thereof, shall be preserved in a suitable medium for possible future 
histopathological examination: All gross lesions; lungs--which shall be 
removed intact, weighed, and treated with a suitable fixative to ensure 
that lung structure is maintained (perfusion with the fixative is 
considered to be an effective procedure); nasopharyngeal tissues; 
brain--including sections of medulla/pons, cerebellar cortex, and 
cerebral cortex; pituitary; thyroid/parathyroid; thymus; trachea; heart; 
sternum with bone marrow; salivary glands; liver; spleen; kidneys; 
adrenals; pancreas; reproductive organs: uterus; cervix; ovaries; 
vagina; testes; epididymides; prostate; and, if present, seminal 
vesicles; aorta; (skin); gall bladder (if present); esophagus; stomach; 
duodenum; jejunum; ileum; cecum; colon; rectum; urinary bladder; 
representative lymph node; (mammary gland); (thigh musculature); 
peripheral nerve/tissue; (eyes); (femur--including articular surface); 
(spinal cord at three

[[Page 83]]

levels--cervical, midthoracic, and lumbar); and (zymbal and exorbital 
lachrymal glands).
    (7) Histopathology. Histopathology shall be performed on the 
following organs and tissues from all rodents:
    (i) All gross lesions.
    (ii) Respiratory tract and other organs and tissues, listed in 
paragraph (d)(6)(ii) of this section (except organs/tissues in 
parentheses), of all animals in the control and high dose groups.
    (iii) The tissues mentioned in parentheses, listed in paragraph 
(d)(6)(ii) of this section, if indicated by signs of toxicity or target 
organ involvement.
    (iv) Lungs of animals in the low and intermediate dose groups shall 
also be subjected to histopathological examination, primarily for 
evidence of infection since this provides a convenient assessment of the 
state of health of the animals.
    (v) Lungs and trachea of the whole-body perfusion-fixed test animals 
cited in paragraph (d)(1)(ii)(A) of this section are examined for 
inhaled particle distribution.
    (e) Interpretation of results. All observed results, quantitative 
and incidental, shall be evaluated by an appropriate statistical method. 
The specific methods, including consideration of statistical power, 
shall be selected during the design of the study.
    (f) Test report. In addition to the reporting requirements as 
specified under Sec. Sec.  79.60 and 79.61(e), the following individual 
animal data information shall be reported:
    (1) Date of death during the study or whether animals survived to 
termination.
    (2) Date of observation of each abnormal sign and its subsequent 
course.
    (3) Individual body weight data, and group average body weight data 
vs. time.
    (4) Feed consumption data, when collected.
    (5) Hematological tests employed and all results.
    (6) Clinical biochemistry tests employed and all results.
    (7) Necropsy findings.
    (8) Type of stain/fixative and procedures used in preparing tissue 
samples.
    (9) Detailed description of all histopathological findings.
    (10) Statistical treatment of the study results, where appropriate.
    (g) References. For additional background information on this test 
guideline, the following references should be consulted.
    (1) 40 CFR 798.2450, Inhalation toxicity.
    (2) 40 CFR 798.2675, Oral Toxicity with Satellite Reproduction and 
Fertility Study.
    (3) General Statement of Work for the Conduct of Toxicity and 
Carcinogenicity Studies in Laboratory Animals (revised April, 1987/
modifications through January, 1990) appendix G, National Toxicology 
Program--U.S. Dept. of Health and Human Services (Public Health 
Service), P.O. Box 12233, Research Triangle Park, NC 27709.

[59 FR 33093, June 27, 1994, as amended at 63 FR 63793, Nov. 17, 1998]



Sec.  79.63  Fertility assessment/teratology.

    (a) Purpose. Fertility assessment/teratology is an in vivo study 
designed to provide information on potential health hazards to the fetus 
arising from the mother's repeated inhalation exposure to vehicle/engine 
emissions before and during her pregnancy. By including a mating of test 
animals, the study provides preliminary data on the effects of repeated 
vehicle/engine emissions exposure on gonadal function, conception, and 
fertility. Since this is a one-generation test that ends with 
examination of full-term fetuses, but not of live pups, it is not 
capable of determining effects on reproductive development which would 
only be detected in viable offspring of treated parents.
    (b) Definitions. For the purposes of this section, the following 
definitions apply:
    Developmental toxicity means the ability of an agent to induce in 
utero death, structural or functional abnormalities, or growth 
retardation after contact with the pregnant animal.
    Estrous cycle means the periodic recurrence of the biological phases 
of the female reproductive system which prepare the animal for 
conception and the development of offspring. The phases of the estrous 
cycle for a particular animal can be characterized by the general 
condition of the cells present in

[[Page 84]]

the vagina and the presence or absence of various cell types.
    Vaginal cytology evaluation means the use of wet vaginal cell smears 
to determine the phase of a test animal's estrous cycle and the 
potential for adverse exposure effects on the regularity of the animal's 
cycle. In the rat, common cell types found in the smears correlate well 
with the various stages of the estrous cycle and to changes occurring in 
the reproductive tract.
    (c) Principle of the test method. (1) For a two week period before 
exposures start, daily vaginal cell smears are examined from a surplus 
of female test animals to identify and cull those females which are 
acyclic. After culling, testers shall randomly assign at each exposure 
concentration (including unexposed) a minimum of twenty-five females for 
breeding and fifteen non-bred females for later histologic evaluation. 
Test animals shall be exposed by inhalation to graduated concentrations 
of the test atmosphere for a minimum of six hours per day over the next 
13 weeks. Males and females in both test and control groups are mated 
after nine weeks of exposure. Exposures for pregnant females continue 
through gestation day 15, while exposures for males and all non-pregnant 
females shall continue for the full exposure period.
    (2) Beginning two weeks before the start of the mating period, daily 
vaginal smears resume for all to-be-bred females to characterize their 
estrous cycles. This will continue for four weeks or until a rat's 
pregnancy is confirmed, i.e., day 0, by the presence of sperm in the 
cell smear. On pregnancy day 20, shortly before the expected date of 
delivery, each pregnant female is sacrificed, her uterus removed, and 
the contents examined for embryonic or fetal deaths, and live fetuses. 
At the end of the exposure period, males and all non-pregnant females 
shall be weighed, and various organs and tissues, as appropriate, shall 
be removed and weighed, fixed with stain, and sectioned for viewing 
under a light microscope.
    (3) This assay may be done separately or in combination with the 
subchronic toxicity study, pursuant to the provisions in Sec.  79.62.
    (d) Limit test. If a test at one dose level of the highest 
concentration that can be achieved while maintaining a particle size 
distribution with a mass median aerodynamic diameter (MMAD) of 4 
micrometers ([micro]m) or less, using the procedures described in 
section 79.60 of this part produces no observable toxic effects and if 
toxicity would not be expected based upon data of structurally related 
compounds, then a full study using three dose levels might not be 
necessary. Expected human exposure though may indicate the need for a 
higher dose level.
    (e) Test procedures--(1) Animal selection--(i) Species and strain. 
The rat is the preferred species. Strains with low fecundity shall not 
be used and the candidate species shall be characterized for its 
sensitivity to developmental toxins. If another rodent species is used, 
the tester shall provide justification for its selection.
    (ii) Animals shall be a minimum of 10 weeks old at the start of the 
exposure period.
    (iii) Number and sex. Each test and control group shall have a 
minimum of 25 males and 40 females. In order to ensure that sufficient 
pups are produced to permit meaningful evaluation of the potential 
developmental toxicity of the test substance, twenty pregnant test 
animals are required for each exposure and control level.
    (2) Observation period. The observation period shall be 13 weeks, at 
a minimum.
    (3) Concentration levels and concentration selection. (i) To select 
the appropriate concentration levels, a pilot or trial study may be 
advisable. Since pregnant animals have an increased minute ventilation 
as compared to non-pregnant animals, it is recommended that the trial 
study be conducted in pregnant animals. Similarly, since presumably the 
minute ventilation will vary with progression of pregnancy, the animals 
should be exposed during the same period of gestation as in the main 
study. It is not always necessary, though, to carry out a trial study in 
pregnant animals. Comparisons between the results of a trial study in 
non-pregnant animals, and the main study in pregnant animals will 
demonstrate whether or not the test

[[Page 85]]

substance is more toxic in pregnant animals. In the trial study, the 
concentration producing embryonic or fetal lethalities or maternal 
toxicity should be determined.
    (ii) The highest concentration level shall induce some overt 
maternal toxicity such as reduced body weight or body weight gain, but 
not more than 10 percent maternal deaths.
    (iii) The lowest concentration level shall not produce any grossly 
observable evidence of either maternal or developmental toxicity.
    (4) Inhalation exposure. (i) All data developed within this study 
shall be in accordance with good laboratory practice provisions under 
Sec.  79.60.
    (ii) The general conduct of this study shall be in accordance with 
the vehicle emissions inhalation exposure guideline in Sec.  79.61.
    (iii) Pregnant females shall be exposed to the test atmosphere on 
each and every day between (and including) the first and fifteenth day 
of gestation.
    (f) Test performance--(1) Study conduct. Directions specific to this 
study are:
    (i) The duration of exposure shall be at least six hours daily, 
allowing appropriate additional time for chamber equilibrium.
    (ii) Where an exposure chamber is used, its design shall minimize 
crowding of the test animals. This is best accomplished by individual 
caging.
    (iii) Pregnant animals shall not be subjected to beyond the minimum 
amount of stress. Since whole-body exposure appears to be the least 
stressful mode of exposure, it is the preferred method. In general 
oronasal or head-only exposure, which is sometimes used to avoid 
concurrent exposure by the dermal or oral routes, is not recommended 
because of the associated stress accompanying the restraining of the 
animals. However, there may be specific instances where it may be more 
appropriate than whole-body exposure. The tester shall provide 
justification/reasoning for its selection.
    (iv) Measurements shall be made at least every other day of food 
consumption for all animals in the study. Males and females shall be 
weighed on the first day of exposure and 2-3 times per week thereafter, 
except for pregnant dams.
    (v) The test animal housing, mating, and exposure chambers shall be 
operated on a twenty-four hour lighting schedule, with twelve hours of 
light and twelve hours of darkness. Test animal exposure shall only 
occur during the light portion of the cycle.
    (vi) Signs of toxicity shall be recorded as they are observed 
including the time of onset, degree, and duration.
    (vii) Females showing signs of abortion or premature delivery shall 
be sacrificed and subjected to a thorough macroscopic examination.
    (viii) Animals that die or are euthanized because of morbidity will 
be necropsied promptly.
    (2) Vaginal cytology. (i) For a two week period before the mating 
period starts, each female in the to-be-bred population shall undergo a 
daily saline vaginal lavage. Two wet cell smears from this lavage shall 
be examined daily for each subject to determine a baseline pattern of 
estrus. Testers shall avoid excessive handling and roughness in 
obtaining the vaginal cell samples, as this may induce a condition of 
pseudo-pregnancy in the test animals.
    (ii) This will continue for four weeks or until day 0 of a rat's 
pregnancy is confirmed by the presence of sperm in the cell smear.
    (3) Mating and fertility assessment. (i) Beginning nine weeks after 
the start of exposure, each exposed and control group female (exclusive 
of the histology group females) shall be paired during non-exposure 
hours with a male from the same exposure concentration group. Matings 
shall continue for a period of two weeks, or until all mated females are 
determined to be pregnant. Mating pairs shall be clearly identified.
    (ii) Each morning, including weekends, cages shall be examined for 
the presence of a sperm plug. When found, this shall mark gestation day 
0 and pregnancy shall be confirmed by the presence of sperm in the day's 
wet vaginal cell smears.
    (iii) Two weeks after mating is begun, or as females are determined 
to be pregnant, bred animals are returned to pre-mating housing. Daily 
exposures continues through gestation day 15 for all pregnant females or 
through the

[[Page 86]]

balance of the exposure period for non-pregnant females and all males.
    (iv) Those pairs which fail to mate shall be evaluated in the course 
of the study to determine the cause of the apparent infertility. This 
may involve such procedures as additional opportunities to mate with a 
proven fertile partner, histological examination of the reproductive 
organs, and, in males, examination of the spermatogenic cycles. The 
stage of estrus for each non-pregnant female in the breeding group will 
be determined at the end of the exposure period.
    (4) All animals in the histology group shall be subject to 
histopathologic examination at the end of the study's exposure period.
    (g) Treatment of results. (1) All observed results, quantitative and 
incidental, shall be evaluated by an appropriate statistical method. The 
specific methods, including consideration of statistical power, shall be 
selected during the design of the study.
    (2) Data and reporting. In addition to the reporting requirements 
specified under Sec. Sec.  79.60 and 79.61, the final test report must 
include the following information:
    (i) Gross necropsy. (A) All animals shall be subjected to a full 
necropsy which includes examination of the external surface of the body, 
all orifices, and the cranial, thoracic, and abdominal cavities and 
their contents. Special attention shall be directed to the organs of the 
reproductive system.
    (B) The liver, kidneys, adrenals, pituitary, uterus, vagina, 
ovaries, testes, epididymides and seminal vesicles (with coagulating 
glands), and prostate shall be weighed wet, as soon as possible after 
dissection, to avoid drying.
    (i) At the time of sacrifice on gestation day 20 or at death during 
the study, each dam shall be examined macroscopically for any structural 
abnormalities or pathological changes which may have influenced the 
pregnancy.
    (ii) The contents of the uterus shall be examined for embryonic or 
fetal deaths and the number of viable fetuses. Gravid uterine weights 
need not be obtained from dead animals where decomposition has occurred. 
The degree of resorption shall be described in order to help estimate 
the relative time of death.
    (iii) The number of corpora lutea shall be determined in each 
pregnant dam.
    (iv) Each fetus shall be weighed, all weights recorded, and mean 
fetal weights determined.
    (v) Each fetus shall be examined externally and the sex determined.
    (vi) One-half of the rat fetuses in each litter shall be examined 
for skeletal anomalies, and the remaining half shall be examined for 
soft tissue anomalies, using appropriate methods.
    (ii) Histopathology. (A) Histopathology on vagina, uterus, ovaries, 
testes, epididymides, seminal vesicles, and prostate as appropriate for 
all males and histology group females in the control and high 
concentration groups and for all animals that died or were euthanized 
during the study. If abnormalities or equivocal results are seen in any 
of these organs/tissues, the same organ/tissue from test animals in 
lower concentration groups shall be examined.

    Note: Testes, seminal vesicles, epididymides, and ovaries, at a 
minimum, shall be examined in perfusion-fixed (pressure or gravity 
method) test subjects, when available.

    (B) All gross lesions in all study animals shall be examined.
    (C) As noted under mating procedures, reproductive organs of animals 
suspected of infertility shall be subject to microscopic examination.
    (D) The following organs and tissues, or representative samples 
thereof, shall be preserved in a suitable medium for future 
histopathological examination: all gross lesions; vagina; uterus; 
ovaries; testes; epididymides; seminal vesicles; prostate; liver; and 
kidneys/adrenals.
    (3) Evaluation of results. (i) The findings of a developmental 
toxicity study shall be evaluated in terms of the observed effects and 
the exposure levels producing effects. It is necessary to consider the 
historical developmental toxicity data on the species/strain tested.

[[Page 87]]

    (ii) There are several criteria for determining a positive result 
for reproductive/teratologic effects; a statistically significant dose-
related decrease in the weight of the testes for treated subjects over 
control subjects, a decrease in neonatal viability, a significant change 
in the presence of soft tissue or skeletal abnormalities, or an 
increased rate of embryonic or fetal resorption or death. Other 
criteria, e.g., lengthening of the estrous cycle or the time spent in 
any one stage of estrus, changes in the proportion of viable male vs 
female fetuses or offspring, the number and type of cells in vaginal 
smears, or pathologic changes found during gross or microscopic 
examination of male or female reproductive organs may be based upon 
detection of a reproducible and statistically significant positive 
response for that evaluation parameter. A positive result indicates 
that, under the test conditions, the test substance does induce 
reproductive organ or fetal toxicity in the test species.
    (iii) A test substance which does not produce either a statistically 
significant dose-related change in the reproductive organs or cycle or a 
statistically significant and reproducible positive response at any one 
of the test points may not induce reproductive organ toxicity in this 
test species, but further investigation , e.g., to establish absorption 
and bioavailability of the test substance, should be considered.
    (h) Test report. In addition to the reporting requirements as 
specified under 40 CFR 79.60 and the vehicle emissions inhalation 
toxicity guideline as published in 40 CFR 79.61, the following specific 
information shall be reported:
    (1) Individual animal data. (i) Time of death during the study or 
whether animals survived to termination.
    (ii) Date of onset and duration of each abnormal sign and its 
subsequent course.
    (iii) Feed and body weight data.
    (iv) Necropsy findings.
    (v) Male test subjects.
    (A) Testicle weight, and body weight: testicle weight ratio.
    (B) Detailed description of all histopathological findings, 
especially for the testes and the epididymides.
    (vi) Female test subjects.
    (A) Uterine weight data.
    (B) Beginning and ending collection dates for vaginal cell smears.
    (C) Estrous cycle length compared within and between groups 
including mean cycle length for groups.
    (D) Percentage of time spent in each stage of cycle.
    (E) Stage of estrus at time of mating/sacrifice and proportion of 
females in estrus between concentration groups.
    (F) Detailed description of all histopathological findings, 
especially for uterine/ovary samples.
    (vii) Pregnancy and litter data. Toxic response data by exposure 
level, including but not limited to, indices of fertility and time-to-
mating, including the number of days until mating and the number of full 
or partial estrous cycles until mating.
    (A) Number of pregnant animals,
    (B) Number and percentage of live fetuses, resorptions.
    (viii) Fetal data. (A) Numbers of each sex.
    (B) Number of fetuses with any soft tissue or skeletal 
abnormalities.
    (2) Type of stain/fixative and procedures used in preparing tissue 
samples.
    (3) Statistical treatment of the study results.
    (i) References. For additional background information on this test 
guideline, the following references should be consulted.
    (1) 40 CFR 798.2675, Oral Toxicity with Satellite Reproduction and 
Fertility Study.
    (2) 40 CFR 798.4350, Inhalation Developmental Toxicity Study.
    (3) Chapin, R.E. and J.J. Heindel (1993) Methods in Toxicology, Vol. 
3, Parts A and B: Reproductive Toxicology, Academic Press, Orlando, FL.
    (4) Gray, L.E., et al. (1989) ``A Dose-Response Analysis of 
Methoxychlor-Induced Alterations of Reproductive Development and 
Function in the Rat'' Fund. App. Tox. 12, 92-108.
    (5) Leblond, C.P. and Y. Clermont (1952) ``Definition of the Stages 
of the Cycle of the Seminiferous Epithelium of the Rat.'' Ann. N. Y. 
Acad. Sci. 55:548-73.
    (6) Morrissey, R.E., et al. (1988) ``Evaluation of Rodent Sperm, 
Vaginal Cytology, and Reproductive Organ Weight Data from National 
Toxicology

[[Page 88]]

Program 13-week Studies.'' Fundam. Appl. Toxicol. 11:343-358.
    (7) Russell, L.D., Ettlin, R.A., Sinhattikim, A.P., and Clegg, E.D 
(1990) Histological and Histopathological Evaluation of the Testes, 
Cache River Press, Clearwater, FL.

[59 FR 33093, June 27, 1994, as amended at 61 FR 36513, July 11, 1996]



Sec.  79.64  In vivo micronucleus assay.

    (a) Purpose. The micronucleus assay is an in vivo cytogenetic test 
which uses erythrocytes in the bone marrow of rodents to detect chemical 
damage to the chromosomes or mitotic apparatus of mammalian cells. As 
the erythroblast develops into an erythrocyte (red blood cell), its main 
nucleus is extruded and may leave a micronucleus in the cell body; a few 
micronuclei form under normal conditions in blood elements. This assay 
is based on an increase in the frequency of micronucleated erythrocytes 
found in bone marrow from treated animals compared to that of control 
animals. The visualization of micronuclei is facilitated in these cells 
because they lack a main nucleus.
    (b) Definitions. For the purposes of this section the following 
definitions apply:
    Micronuclei mean small particles consisting of acentric fragments of 
chromosomes or entire chromosomes, which lag behind at anaphase of cell 
division. After telophase, these fragments may not be included in the 
nuclei of daughter cells and form single or multiple micronuclei in the 
cytoplasm.
    Polychromatic erythrocyte (PCE) means an immature red blood cell 
that, because it contains RNA, can be differentiated by appropriate 
staining techniques from a normochromatic erythrocyte (NCE), which lacks 
RNA. In one to two days, a PCE matures into a NCE.
    (c) Test method--(1) Principle of the test method. (i) Groups of 
rodents are exposed by the inhalation route for a minimum of 6 hours/day 
over a period of not less than 28 days to three or more concentrations 
of a test substance in air. Groups of animals are sacrificed at the end 
of the exposure period and femoral bone marrow is extracted. The bone 
marrow is then smeared onto glass slides, stained, and PCEs are scored 
for micronuclei. Researchers may need to run a trial at the highest 
tolerated concentration of the test atmosphere to optimize the sample 
collection time for micronucleated cells.
    (ii) This assay may be done separately or in combination with the 
subchronic toxicity study, pursuant to the provisions in Sec.  79.62.
    (2) Species and strain. (i) The rat is the recommended test animal. 
Other rodent species may be used in this assay, but use of that species 
will be justified by the tester.
    (ii) If a strain of mouse is used in this assay, the tester shall 
sample peripheral blood from an appropriate site on the test animal, 
e.g., the tail vein, as a source of normochromatic erythrocytes. Results 
shall be reported as outlined later in this guideline with 
``normochromatic'' interchanged for ``polychromatic'', where specified.
    (3) Animal number and sex. At least five female and five male 
animals per experimental/sample and control group shall be used. The use 
of a single sex or a smaller number of animals shall be justified.
    (4) Positive control group. A single concentration of a compound 
known to produce micronuclei in vivo is adequate as a positive control 
if it shows a significant response at any one time point; additional 
concentration levels may be used. To select an appropriate concentration 
level, a pilot or trial study may be advisable. Initially, one 
concentration of the test substance may be used, the maximum tolerated 
dose or that producing some indication of toxicity, e.g., a drop in the 
ratio of polychromatic to normochromatic erythrocytes. Intraperitoneal 
injection of 1,2-dimethyl-benz-anthracene or benzene are examples of 
positive control exposures. A concentration of 50-80 percent of an LD50 
may be a suitable guide.
    (d) Test performance--(1) Inhalation exposure. (i) All data 
developed within this study shall be in accordance with good laboratory 
practice provisions under Sec.  79.60.

[[Page 89]]

    (ii) The general conduct of this study shall be in accordance with 
the vehicle emissions inhalation exposure guideline in Sec.  79.61.
    (2) Preparation of slides and sampling times. Within twenty-four 
hours of the last exposure, test animals will be sacrificed. One femur 
from each test animal will be removed and placed in fetal bovine serum. 
The bone marrow is removed, cells processed, and two bone marrow smears 
are made for each animal on glass microscope slides. The slides are 
stained with acridine- orange (AO) or another appropriate stain (Giemsa 
+ Wright's, etc.) and examined under a microscope.
    (3) Analysis. Slides shall be coded for study before microscopic 
analysis. At least 1,000 first-division erythrocytes per animal shall be 
scored for the incidence of micronuclei. Sexes will be analyzed 
separately.
    (e) Data and report--(1) Treatment of results. In addition to the 
reporting requirements specified under Sec. Sec.  79.60 and 79.61, the 
final test report must include the criteria for scoring micronuclei. 
Individual data shall be presented in a tabular form including both 
positive and negative controls and experimental groups. The number of 
polychromatic erythrocytes scored, the number of micronucleated 
erythrocytes, the percentage of micronucleated cells, and, where 
applicable, the percentage of micronucleated erythrocytes shall be 
listed separately for each experimental and control animal. Absolute 
numbers shall be included if percentages are reported.
    (2) Interpretation of data. (i) There are several criteria for 
determining a positive response, one of which is a statistically 
significant dose-related increase in the number of micronucleated 
polychromatic erythrocytes. Another criterion may be based upon 
detection of a reproducible and statistically significant positive 
response for at least one of the test substance concentrations.
    (ii) A test substance which does not produce either a statistically 
significant dose-related increase in the number of micronucleated 
polychromatic erythrocytes or a statistically significant and 
reproducible positive response at any one of the test points is 
considered nonmutagenic in this system.
    (3) Test evaluation. (i) Positive results in the micronucleus test 
provide information on the ability of a chemical to induce micronuclei 
in erythrocytes of the test species under the conditions of the test. 
This damage may have been the result of chromosomal damage or damage to 
the mitotic apparatus.
    (ii) Negative results indicate that under the test conditions the 
test substance does not produce micronuclei in the bone marrow of the 
test species.
    (f) Test report. In addition to the reporting recommendations as 
specified under Sec.  79.60, the following specific information shall be 
reported:
    (1) Test atmosphere concentration(s) used and rationale for 
concentration selection.
    (2) Rationale for and description of treatment and sampling 
schedules, toxicity data, negative and positive controls.
    (3) Historical control data (negative and positive), if available.
    (4) Details of the protocol used for slide preparation.
    (5) Criteria for identifying micronucleated erythrocytes.
    (6) Micronucleus analysis by animal and by group for each 
concentration (sexes analyzed separately).
    (i) Ratio of polychromatic to normochromatic erythrocytes.
    (ii) Number of polychromatic erythrocytes with micronuclei.
    (iii) Number of polychromatic erythrocytes scored.
    (7) Statistical methodology chosen for test analysis.
    (g) References. For additional background information on this test 
guideline, the following references should be consulted.
    (1) 40 CFR 798.5395, In Vivo, Mammalian Bone Marrow Cytogenetics 
Tests: Micronucleus Assay.
    (2) Cihak, R. ``Evaluation of Benzidine by the Micronucleus Test.'' 
Mutation Research, 67: 383-384 (1979).
    (3) Evans, H.J. ``Cytological Methods for Detecting Chemical 
Mutagens.'' Chemical Mutagens: Principles and Methods for Their 
Detection, Vol. 4. Ed. A. Hollaender (New York and London: Plenum Press, 
1976) pp. 1-29.

[[Page 90]]

    (4) Heddle, J.A., et al. ``The Induction of Micronuclei as a Measure 
of Genotoxicity. A Report of the U.S. Environmental Protection Agency 
Gene-Tox Program.'' Mutation Research, 123:61-118 (1983).
    (5) Preston, J.R. et al. ``Mammalian In Vivo and In Vitro 
Cytogenetics Assays: Report of the Gene-Tox Program.'' Mutation 
Research, 87:143-188 (1981).
    (6) Schmid, W. ``The micronucleus test for cytogenetic analysis'', 
Chemical Mutagens, Principles and Methods for their Detection. Vol. 4 
Hollaender A, (Ed. A ed. (New York and London: Plenum Press, (1976) pp. 
31-53.
    (7) Tice, R.E., and Al Pellom ``User's guide: Micronucleus assay 
data management and analysis system'', NTIS Order no. PB-90-212-598AS.



Sec.  79.65  In vivo sister chromatid exchange assay.

    (a) Purpose. The in vivo sister chromatid exchange (SCE) assay 
detects the ability of a chemical to enhance the exchange of DNA between 
two sister chromatids of a duplicating chromosome. The most commonly 
used assays employ mammalian bone marrow cells or peripheral blood 
lymphocytes, often from rodent species.
    (b) Definitions. For the purposes of this section, the following 
definitions apply:
    C-metaphase means a state of arrested cell growth typically seen 
after treatment with a spindle inhibitor, i.e., colchicine.
    Sister chromatid exchange means a reciprocal interchange of the two 
chromatid arms within a single chromosome. This exchange is visualized 
during the metaphase portion of the cell cycle and presumably requires 
the enzymatic incision, translocation and ligation of at least two DNA 
helices.
    (c) Test method--(1) Principle of the test method. (i) Groups of 
rodents are exposed by the inhalation route for a minimum of 6 hours/day 
over a period of not less than 28 days to three or more concentrations 
of a test substance in air. Groups of animals are sacrificed at the end 
of the exposure period and blood lymphocyte cell cultures are prepared 
from study animals. Cell growth is suspended after a time and cells are 
harvested, fixed and stained before scoring for SCEs. Researchers may 
need to run a trial at the highest tolerated concentration of the test 
atmosphere to optimize the sample collection time for second division 
metaphase cells.
    (ii) This assay may be done separately or in combination with the 
subchronic toxicity study, pursuant to the provisions in Sec.  79.62.
    (2) Description. (i) The method described here employs peripheral 
blood lymphocytes (PBL) of laboratory rodents exposed to the test 
atmosphere.
    (ii) Within twenty-four hours of the last exposure, test animal 
lymphocytes are obtained by heart puncture and duplicate cell cultures 
are started for each animal. Cultures are grown in bromo-deoxyuridine 
(BrdU), and then a spindle inhibitor (e.g., colchicine) is added to 
arrest cell growth. Cells are harvested, fixed, and stained and their 
chromosomes are scored for SCEs.
    (3) Species and strain. The rat is the recommended test animal. 
Other rodent species may be used in this assay, but use of that species 
will be justified by the tester.
    (4) Animal number and sex. At least five female and five male 
animals per experimental and control group shall be used. The use of a 
single sex or different number of animals shall be justified.
    (5) Positive control group. A single concentration of a compound 
known to produce SCEs in vivo is adequate as a positive control if it 
shows a significant response at any one time point; additional 
concentration levels may be used. To select an appropriate concentration 
level, a pilot or trial study may be advisable. Initially, one 
concentration of the test substance may be used, the maximum tolerated 
dose or that producing some indication of toxicity as evidenced by 
animal morbidity (including death) or target cell toxicity. 
Intraperitoneal injection of 1,2-dimethyl-benz-anthracene or benzene are 
examples of positive control exposures. A concentration of 50-80 percent 
of an LD50 would also be a suitable guide.
    (6) Inhalation exposure. (i) All data developed within this study 
shall be in

[[Page 91]]

accordance with good laboratory practice provisions under Sec.  79.60.
    (ii) The general conduct of this study shall be in accordance with 
the vehicle emissions inhalation exposure guideline in Sec.  79.61.
    (d) Test performance--(1) Treatment. At the conclusion of the 
exposure period, all test animals are anaesthetized and heart punctures 
are performed. Lymphocytes are isolated over a Ficoll gradient and 
replicate cell cultures are started for each animal. After some 21 
hours, the cells are treated with BrdU and returned to incubation. The 
following day, a spindle inhibitor (e.g., colchicine) is added to arrest 
cell growth in c-metaphase. Cells are harvested 4 hours later and 
second-division metaphase cells are washed and fixed in methanol:acetic 
acid, stained, and chromosome preparations are scored for SCEs.
    (2) Staining method. Staining of slides to reveal SCEs can be 
performed according to any of several protocols. However, the 
fluorescence plus Giemsa method is recommended.
    (3) Number of cells scored. (i) A minimum of 25 well-stained, 
second-division metaphase cells shall be scored for each animal for each 
cell type.
    (ii) At least 100 consecutive metaphase cells shall be scored for 
the number of first, second, and third division metaphases for each 
animal for each cell type.
    (iii) At least 1000 consecutive PBL's shall be scored for the number 
of metaphase cells present.
    (iv) The number of cells to be analyzed per animal shall be based 
upon the number of animals used, the negative control frequency, the 
pre-determined sensitivity and the power chosen for the test. Slides 
shall be coded before microscopic analysis.
    (e) Data and report--(1) Treatment of results. In addition to the 
reporting requirements specified under Sec. Sec.  79.60 and 61, data 
shall be presented in tabular form, providing scores for both the number 
of SCE for each metaphase. Differences among animals within each group 
shall be considered before making comparisons between treated and 
control groups.
    (2) Statistical evaluation. Data shall be evaluated by appropriate 
statistical methods.
    (3) Interpretation of results. (i) There are several criteria for 
determining a positive result, one of which is a statistically 
significant dose-related increase in the number of SCE. Another 
criterion may be based upon detection of a reproducible and 
statistically significant positive response for at least one of the test 
concentrations.
    (ii) A test substance which does not produce either a statistically 
significant dose-related increase in the number of SCE or a 
statistically significant and reproducible positive response at any one 
of the test concentrations is considered not to induce rearrangements of 
DNA segments in this system.
    (iii) Both biological and statistical significance shall be 
considered together in the evaluation.
    (4) Test evaluation. (i) A positive result in the in vivo SCE assay 
for either, or both, the lung or lymphocyte cultures indicates that 
under the test conditions the test substance induces reciprocal 
interchanges of DNA in duplicating chromosomes from lung or lymphocyte 
cells of the test species.
    (ii) Negative results indicate that under the test conditions the 
test substance does not induce reciprocal interchanges in lung or 
lymphocyte cells of the test species.
    (5) Test report. In addition to the reporting recommendations as 
specified under Sec. Sec.  79.60 and 79.61, the following specific 
information shall be reported:
    (i) Test concentrations used, rationale for concentration selection, 
negative and positive controls;
    (ii) Toxic response data by concentration;
    (iii) Schedule of administration of test atmosphere, BrdU, and 
spindle inhibitor;
    (iv) Time of harvest after administration of BrdU;
    (v) Identity of spindle inhibitor, its concentration and timing of 
treatment;
    (vi) Details of the protocol used for cell culture and slide 
preparation;
    (vii) Criteria for scoring SCE;
    (viii) Replicative index, i.e., [percent 1st division + (2 x percent 
2nd division) + (3 x percent 3rd division) metaphases]/100; and

[[Page 92]]

    (ix) Mitotic activity, i.e.,  of metaphases/1000 cells.
    (f) References. For additional background information on this test 
guideline, the following references should be consulted.
    (1) 40 CFR 798.5915, In vivo Sister Chromatid Exchange Assay.
    (2) Kato, H. ``Spontaneous Sister Chromatid Exchanges Detected by a 
BudR-Labeling Method.'' Nature, 251:70-72 (1974).
    (4) Kligerman, A. D., et al. ``Sister Chromatid Exchange Analysis in 
Lung and Peripheral Blood Lymphocytes of Mice Exposed to Methyl 
Isocyanate by Inhalation.'' Environmental Mutagenesis 9:29-36 (1987).
    (5) Kligerman, A.D., et al., ``Cytogenetic Studies of Rodents 
Exposed to Styrene by Inhalation'', IARC Monographs no. 127 ``Butadiene 
and Styrene: Assesment of Health Hazards'' (Sorsa, et al., eds), pp 217-
224, 1993.
    (6) Kligerman, A., et al., ``Cytogenetic Studies of Mice Exposed to 
Styrene by Inhalation.'', Mutation Research, 280:35-43, 1992.
    (7) Wolff, S., and P. Perry. ``Differential Giemsa Staining of 
Sister Chromatids and the Study of Sister Chromatid Exchanges Without 
Autoradiography.'' Chromosoma 48: 341-53 (1974).



Sec.  79.66  Neuropathology assessment.

    (a) Purpose. (1) The histopathological and biochemical techniques in 
this guideline are designed to develop data in animals on morphologic 
changes in the nervous system associated with repeated inhalation 
exposures to motor vehicle emissions. These tests are not intended to 
provide a detailed evaluation of neurotoxicity. Neuropathological 
evaluation should be complemented by other neurotoxicity studies, e.g. 
behavioral and neurophysiological studies and/or general toxicity 
testing, to more completely assess the neurotoxic potential of an 
exposure.
    (2) [Reserved]
    (b) Definition. Neurotoxicity (NTX) or a neurotoxic effect is an 
adverse change in the structure or function of the nervous system 
following exposure to a chemical substance.
    (c) Principle of the test method. (1) Laboratory rodents are exposed 
to one of several concentration levels of a test atmosphere for at least 
six hours daily over a period of 90 days. At the end of the exposure 
period, the animals are anaesthetized, perfused in situ with fixative, 
and tissues in the nervous system are examined grossly and prepared for 
microscopic examination. Starting with the highest dosage level, tissues 
are examined under the light microscope for morphologic changes, until a 
no-observed-adverse-effect level is determined. In cases where light 
microscopy has revealed neuropathology, the NOAEL may be confirmed by 
electron microscopy.
    (2) The tests described herein may be combined with any other 
toxicity study, as long as none of the requirements of either are 
violated by the combination. Specifically, this assay may be combined 
with a subchronic toxicity study, pursuant to provisions in Sec.  79.62.
    (d) Limit test. If a test at one dose level of the highest 
concentration that can be achieved while maintaining a particle size 
distribution with a mass median aerodynamic diameter (MMAD) of 4 
micrometers ([micro]m) or less, using the procedures described in 
paragraph (a) of this section, produces no observable toxic effects and 
if toxicity would not be expected based upon data of structurally 
related compounds, then a full study using three dose levels might not 
be necessary. Expected human exposure though may indicate the need for a 
higher dose level.
    (e) Test procedures--(1) Animal selection--(i) Species and strain. 
Testing shall be performed in the species being used in other NTX tests. 
A standard strain of laboratory rat is recommended. The choice of 
species shall take into consideration such factors as the comparative 
metabolism of the chemical and species sensitivity to the toxic effects 
of the test substance, as evidenced by the results of other studies, the 
potential for combined studies, and the availability of other toxicity 
data for the species.
    (ii) Age. Animals shall be at least ten weeks of age at the start of 
exposure.

[[Page 93]]

    (iii) Sex. Both sexes shall be used unless it is demonstrated that 
one sex is refractory to the effects of exposure.
    (2) Number of Animals. A minimum of ten animals per group shall be 
used. The tissues from each animal shall be examined separately.
    (3) Control Groups. (i) A concurrent control group, exposed to 
clean, filtered air only, is required.
    (ii) The laboratory performing the testing shall provide positive 
control data, e.g., results from repeated acrylamide exposure, as 
evidence of the ability of their histology procedures to detect 
neurotoxic endpoints. Positive control data shall be collected at the 
time of the test study unless the laboratory can demonstrate the 
adequacy of historical data for the planned study.
    (iii) A satellite group of 10 female and 10 male test subjects shall 
be treated with the highest concentration level for the duration of the 
exposure and observed thereafter for reversibility, persistence, or 
delayed occurrence of toxic effects during a post-treatment period of 
not less than 28 days.
    (4) Inhalation exposure. (i) All data developed within this study 
shall be in accordance with good laboratory practice provisions under 
Sec.  79.60.
    (ii) The general conduct of this study shall be in accordance with 
the vehicle emissions inhalation exposure guideline in Sec.  79.61.
    (5) Study conduct--(i) Observation of animals. All toxicological 
(e.g., weight loss) and neurological signs (e.g., motor disturbance) 
shall be recorded frequently enough to observe any abnormality, and not 
less than weekly.
    (ii) The following is a minimal list of measures that shall be 
noted:
    (A) Body weight;
    (B) Subject's reactivity to general stimuli such as removal from the 
cage or handling;
    (C) Description, incidence, and severity of any convulsions, 
tremors, or abnormal motor movements in the home cage;
    (D) Descriptions and incidence of posture and gait abnormalities 
observed in the home cage; and
    (E) Description and incidence of any unusual or abnormal behaviors, 
excessive or repetitive actions (stereotypies), emaciation, dehydration, 
hypotonia or hypertonia, altered fur appearance, red or crusty deposits 
around the eyes, nose, or mouth, and any other observations that may 
facilitate interpretation of the data.
    (iii) Sacrifice of animals--(A) General. The goal of the techniques 
outlined for sacrifice of animals and preparation of tissues is 
preservation of tissue morphology to simulate the living state of the 
cell.
    (B) Perfusion technique. Animals shall be perfused in situ by a 
generally recognized technique. For fixation suitable for light or 
electronic microscopy, saline solution followed by buffered 2.5 percent 
glutaraldehyde or buffered 4.0 percent paraformaldehyde, is recommended. 
While some minor modifications or variations in procedures are used in 
different laboratories, a detailed and standard procedure for vascular 
perfusion may be found in the text by Zeman and Innes (1963), Hayat 
(1970), and Spencer and Schaumburg (1980) under paragraph (g) of this 
section. A more sophisticated technique is described by Palay and Chan-
Palay (1974) under paragraph (g) of this section. In addition, the lungs 
shall be instilled with fixative via the trachea during the fixation 
process in order to preserve the lungs and achieve whole-body fixation.
    (C) Removal of brain and cord. After perfusion, the bony structure 
(cranium and vertebral column) shall be exposed. Animals shall then be 
stored in fixative-filled bags at 4 [deg]C for 8-12 hours. The cranium 
and vertebral column shall be removed carefully by trained technicians 
without physical damage of the brain and cord. Detailed dissection 
procedures may be found in the text by Palay and Chan-Palay (1974) under 
paragraph (g) of this section. After removal, simple measurement of the 
size (length and width) and weight of the whole brain (cerebrum, 
cerebellum, pons-medulla) shall be made. Any abnormal coloration or 
discoloration of the brain and cord shall also be noted and recorded.
    (D) Sampling. Cross-sections of the following areas shall be 
examined: The forebrain, the center of the cerebrum, the midbrain, the 
cerebellum, and the medulla oblongata; the spinal cord at

[[Page 94]]

the cervical swelling (C3-C6), and proximal 
sciatic nerve (mid-thigh and sciatic notch) or tibial nerve (at knee). 
Other sites and tissue elements (e.g., gastrocnemius muscle) shall be 
examined if deemed necessary. Any observable gross changes shall be 
recorded.
    (iv) Specimen storage. Tissue samples from both the central and 
peripheral nervous system shall be further immersion fixed and stored in 
appropriate fixative (e.g., 10 percent buffered formalin for light 
microscopy; 2.5 percent buffered gluteraldehyde or 4.0 percent buffered 
paraformaldehyde for electron microscopy) for future examination. The 
volume of fixative versus the volume of tissues in a specimen jar shall 
be no less than 25:1. All stored tissues shall be washed with buffer for 
at least 2 hours prior to further tissue processing.
    (v) Histopathology examination--(A) Fixation. Tissue specimens 
stored in 10 percent buffered formalin may be used for this purpose. All 
tissues must be immersion fixed in fixative for at least 48 hours prior 
to further tissue processing.
    (B) Dehydration. All tissue specimens shall be washed for at least 1 
hour with water or buffer, prior to dehydration. (A longer washing time 
is needed if the specimens have been stored in fixative for a prolonged 
period of time.) Dehydration can be performed with increasing 
concentration of graded ethanols up to absolute alcohol.
    (C) Clearing and embedding. After dehydration, tissue specimens 
shall be cleared with xylene and embedded in paraffin or paraplast. 
Multiple tissue specimens (e.g. brain, cord, ganglia) may be embedded 
together in one single block for sectioning. All tissue blocks shall be 
labelled showing at least the experiment number, animal number, and 
specimens embedded.
    (D) Sectioning. Tissue sections, 5 to 6 microns in thickness, shall 
be prepared from the tissue blocks and mounted on standard glass slides. 
It is recommended that several additional sections be made from each 
block at this time for possible future needs for special stainings. All 
tissue blocks and slides shall be filed and stored in properly labeled 
files or boxes.
    (E) Histopathological techniques. The following general testing 
sequence is proposed for gathering histopathological data:
    (1) General staining. A general staining procedure shall be 
performed on all tissue specimens in the highest treatment group. 
Hematoxylin and eosin (H&E) shall be used for this purpose. The staining 
shall be differentiated properly to achieve bluish nuclei with pinkish 
background.
    (2) Peripheral nerve teasing. Peripheral nerve fiber teasing shall 
be used. Detailed staining methodology is available in standard 
histotechnological manuals such as AFIP (1968), Ralis et al. (1973), and 
Chang (1979) under paragraph (g) of this section. The nerve fiber 
teasing technique is discussed in Spencer and Schaumberg (1980) under 
paragraph (g) of this section. A section of normal tissue shall be 
included in each staining to assure that adequate staining has occurred. 
Any changes shall be noted and representative photographs shall be 
taken. If a lesion(s) is observed, the special techniques shall be 
repeated in the next lower treatment group until no further lesion is 
detectable.
    (F) Examination. All stained microscopic slides shall be examined 
with a standard research microscope. Examples of cellular alterations 
(e.g., neuronal vacuolation, degeneration, and necrosis) and tissue 
changes (e.g., gliosis, leukocytic infiltration, and cystic formation) 
shall be recorded and photographed.
    (f) Data collection, reporting, and evaluation. In addition to 
information meeting the requirements stated under 40 CFR 79.60 and 
79.61, the following specific information shall be reported:
    (1) Description of test system and test methods. (i) A description 
of the general design of the experiment shall be provided. This shall 
include a short justification explaining any decisions where 
professional judgment is involved such as fixation technique and choice 
of stains; and
    (ii) Positive control data from the laboratory performing the test 
that demonstrate the sensitivity of the procedures being used. 
Historical data may be used if all essential aspects of

[[Page 95]]

the experimental protocol are the same.
    (2) Results. All observations shall be recorded and arranged by test 
groups. This data may be presented in the following recommended format:
    (i) Description of signs and lesions for each animal. For each 
animal, data must be submitted showing its identification (animal 
number, treatment, dose, duration), neurologic signs, location(s) nature 
of, frequency, and severity of lesion(s). A commonly-used scale such as 
1 + , 2 + , 3 + , and 4 + for degree of severity ranging from very 
slight to extensive may be used. Any diagnoses derived from neurologic 
signs and lesions including naturally occurring diseases or conditions, 
shall also be recorded;
    (ii) Counts and incidence of lesions, by test group. Data shall be 
tabulated to show:
    (A) The number of animals used in each group, the number of animals 
displaying specific neurologic signs, and the number of animals in which 
any lesion was found; and
    (B) The number of animals affected by each different type of lesion, 
the average grade of each type of lesion, and the frequency of each 
different type and/or location of lesion.
    (iii) Evaluation of data. (A) An evaluation of the data based on 
gross necropsy findings and microscopic pathology observations shall be 
made and supplied. The evaluation shall include the relationship, if 
any, between the animal's exposure to the test atmosphere and the 
frequency and severity of any lesions observed; and
    (B) The evaluation of dose-response, if existent, for various groups 
shall be given, and a description of statistical method must be 
presented. The evaluation of neuropathology data shall include, where 
applicable, an assessment in conjunction with any other neurotoxicity 
studies, electrophysiological, behavioral, or neurochemical, which may 
be relevant to this study.
    (g) References. For additional background information on this test 
guideline, the following references should be consulted.
    (1) 40 CFR 798.6400, Neuropathology.
    (2) AFIP Manual of Histologic Staining Methods. (New York: McGraw-
Hill (1968).
    (3) Chang, L.W. A Color Atlas and Manual for Applied Histochemistry. 
(Springfield, IL: Charles C. Thomas, 1979).
    (4) Dunnick, J.K., et.al. Thirteen-week Toxicity Study of N-Hexane 
in B6C3F1 Mice After Inhalation Exposure (1989) Toxicology, 57, 163-172.
    (5) Hayat, M.A. ``Vol. 1. Biological applications,'' Principles and 
techniques of electron microscopy. (New York: Van Nostrand Reinhold, 
1970).
    (6) Palay S.L., Chan-Palay, V. Cerebellar Cortex: Cytology and 
Organization. (New York: Springer-Verlag, 1974).
    (7) Ralis, H.M., Beesley, R.A., Ralis, Z.A. Techniques in 
Neurohistology. (London: Butterworths, 1973).
    (8) Sette, W. ``Pesticide Assessment Guidelines, Subdivision F, 
Neurotoxicity Test Guidelines.'' Report No. 540/09-91-123 U.S. 
Environmental Protection Agency 1991 (NTIS  PB91-154617).
    (9) Spencer, P.S., Schaumburg, H.H. (eds). Experimental and Clinical 
Neurotoxicology. (Baltimore: Williams and Wilkins, 1980).
    (10) Zeman, W., Innes, J.R.M. Craigie's Neuroanatomy of the Rat. 
(New York: Academic, 1963).

[59 FR 33093, June 27, 1994, as amended at 63 FR 63793, Nov. 17, 1999]



Sec.  79.67  Glial fibrillary acidic protein assay.

    (a) Purpose. Chemical-induced injury of the nervous system, i.e., 
the brain, is associated with astrocytic hypertrophy at the site of 
damage (see O'Callaghan, 1988 in paragraph (e)(3) in this section). 
Assays of glial fibrillary acidic protein (GFAP), the major intermediate 
filament protein of astrocytes, can be used to document this response. 
To date, a diverse variety of chemical insults known to be injurious to 
the central nervous system have been shown to increase GFAP. Moreover, 
increases in GFAP can be seen at concentrations below those necessary to 
produce cytopathology as determined by routine Nissl stains (standard 
neuropathology). Thus it appears that assays of GFAP represent a 
sensitive

[[Page 96]]

approach for documenting the existence and location of chemical-induced 
injury of the central nervous system. Additional functional, 
histopathological, and biochemical tests are necessary to assess 
completely the neurotoxic potential of any chemical. This biochemical 
test is intended to be used in conjunction with neurohistopathological 
studies.
    (b) Principle of the test method. (1) This guideline describes the 
conduct of a radioimmunoassay for measurement of the amount of GFAP in 
the brain of vehicle emission-exposed and unexposed control animals. It 
is based on modifications (O'Callaghan & Miller 1985 in paragraph 
(e)(5), O'Callaghan 1987 in paragraph (e)(1) of this section) of the 
dot-immunobinding procedure described by Jahn et al. (1984) in paragraph 
(e)(2) of this section. Briefly, brain tissue samples from study animals 
are assayed for total protein, diluted in dot-immunobinding buffer, and 
applied to nitrocellulose sheets. The spotted sheets are then fixed, 
blocked, washed and incubated in anti-GFAP antibody and [I\125\] Protein 
A. Bound protein A is then quantified by gamma spectrometry. In lieu of 
purified protein standards, standard curves are constructed from 
dilution of a single control sample. By comparing the immunoreactivity 
of individual samples (both control and exposed groups) with that of the 
sample used to generate the standard curve, the relative 
immunoreactivity of each sample is obtained. The immunoreactivity of the 
control groups is normalized to 100 percent and all data are expressed 
as a percentage of control. A variation on this radioimmunoassay 
procedure has been proposed (O'Callaghan 1991 in paragraph (e)(4) of 
this section) which uses a ``sandwich'' of GFAP, anti-GFAP, and a 
chromophore in a microtiter plate format enzyme-link immunosorbent assay 
(ELISA). The use of this variation shall be justified.
    (2) This assay may be done separately or in combination with the 
subchronic toxicity study, pursuant to the provisions of Sec.  79.62.
    (c) Test procedure--(1) Animal selection--(i) Species and strain. 
Test shall be performed on the species being used in concurrent testing 
for neurotoxic or other health effect endpoints. This will generally be 
a species of laboratory rat. The use of other rodent or non-rodent 
species shall be justified.
    (ii) Age. Based on other concurrent testing, young adult rats shall 
be used. Study rodents shall not be older than ten weeks at the start of 
exposures.
    (iii) Number of animals. A minimum of ten animals per group shall be 
used. The tissues from each animal shall be examined separately.
    (iv) Sex. Both sexes shall be used unless it is demonstrated that 
one sex is refractory to the effects.
    (2) Materials. The materials necessary to perform this study are 
[I\125\] Protein A (2-10 [micro]Ci/[micro]g), Anti-sera to GFAP, 
nitrocellulose paper (0.1 or 0.2 [micro]m pore size), sample application 
template (optional; e.g., ``Minifold II'', Schleicher & Schuell, Keene, 
NH), plastic sheet incubation trays.
    (3) Study conduct. (i) All data developed within this study shall be 
in accordance with good laboratory practice provisions under Sec.  
79.60.
    (ii) Tissue Preparation. Animals are euthanized 24 hours after the 
last exposure and the brain is excised from the skull. On a cold 
dissecting platform, the following six regions are dissected freehand: 
cerebellum; cerebral cortex; hippocampus; striatum; thalamus/
hypothalamus; and the rest of the brain. Each region is then weighed and 
homogenized in 10 volumes of hot (70-90 [deg]C) 1 percent (w/v) sodium 
dodecyl sulfate (SDS). Homogenization is best achieved through sonic 
disruption. A motor driven pestle inserted into a tissue grinding vessel 
is a suitable alternative. The homogenized samples can then be stored 
frozen at -70 [deg]C for at least 4 years without loss of GFAP content.
    (iii) Total Protein Assay. Aliquots of the tissue samples are 
assayed for total protein using the method of Smith et al. (1985) in 
paragraph (e)(7) of this section. This assay may be purchased in kit 
form (e.g., Pierce Chemical Company, Rockford, IL).
    (iv) Sample Preparation. Dilute tissue samples in sample buffer (120 
mM KCl, 20 mM NaCl, 2 mM MgCl2), 5 mM Hepes, pH 7.4, 0.7 
percent Triton X-100) to a final concentration of 0.25 mg total protein 
per ml (5 [micro]g/20 [micro]l).

[[Page 97]]

    (v) Preparation of Standard Curve. Dilute a single control sample in 
sample buffer to give at least five standards, between 1 and 10 [micro]g 
total protein per 20 [micro]l. The suggested values of total protein per 
20 [micro]l sample buffer are 1.25, 2.50, 3.25, 5.0, 6.25, 7.5, 8.75, 
and 10.0 [micro]g.
    (vi) Preparation of Nitrocellulose Sheets. Nitrocellulose sheets of 
0.1 or 0.2 micron pore size are rinsed by immersion in distilled water 
for 5 minutes and then air dried.
    (vii) Sample Application. Samples can be spotted onto the 
nitrocellulose sheets free-hand or with the aid of a template. For free-
hand application, draw a grid of squares approximately 2 centimeters by 
2 centimeters (cm) on the nitrocellulose sheets using a soft pencil. 
Spot 5-10 [micro]l portions to the center of each square for a total 
sample volume of 20 [micro]l. For template aided sample application a 
washerless microliter capacity sample application manifold is used. 
Position the nitrocellulose sheet in the sample application device as 
recommended by the manufacturer and spot a 20 [micro]l sample in one 
application. Do not wet the nitrocellulose or any support elements prior 
to sample application. Do not apply vacuum during or after sample 
application. After spotting samples (using either method), let the 
sheets air dry. The sheets can be stored at room temperature for several 
days after sample application.
    (viii) Standard Incubation Conditions. These conditions have been 
described by Jahn et al. (1984) in paragraph (e)(2) of this section. All 
steps are carried out at room temperature on a flat shaking platform 
(one complete excursion every 2-3 seconds). For best results, do not use 
rocking or orbital shakers. Perform the following steps in enough 
solution to cover the nitrocellulose sheets to a depth of 1 cm.
    (A) Incubate 20 minutes in fixer (25 percent (v/v) isopropanol, 10 
percent (v/v) acetic acid).
    (B) Discard fixer, wash several times in deionized water to 
eliminate the fixer, and then incubate for 5 minutes in Tris-buffered 
saline (TBS): 200 mM NaCL, 60 mM Tris-HCl to pH 7.4.
    (C) Discard TBS and incubate 1 hour in blocking solution (0.5 
percent gelatin (w/v)) in TBS.
    (D) Discard blocking solution and incubate for 2 hours in antibody 
solution (anti-GFAP antiserum diluted to the desired dilution in 
blocking solution containing 0.1 percent Triton X-100). Serum anti-
bovine GFAP, which cross reacts with GFAP from rodents and humans, can 
be obtained commercially (e.g., Dako Corp.) and used at a dilution of 
1:500.
    (E) Discard antibody solution, and wash in 4 changes of TBS for 5 
minutes each time. Then wash in TBS for 10 minutes.
    (F) Discard TBS and incubate in blocking solution for 30 minutes.
    (G) Discard blocking solution and incubate for 1 hour in Protein A 
solution ([I\125\]-labeled Protein A diluted in blocking solution 
containing 0.1 percent Triton X-100, sufficient to produce 2000 counts 
per minute (cpm) per 10 [micro]l of Protein A solution).
    (H) Remove Protein A solution (it may be reused once). Wash in 0.1 
percent Triton X-100 in TBS (TBSTX) for 5 minutes, 4 times. Then wash in 
TBSTX for 2-3 hours for 4 additional times. An overnight wash in a 
larger volume can be used to replace the last 4 washes.
    (I) Hang sheets to air-dry. Cut out squares or spots and count 
radioactivity in a gamma counter.
    (ix) Expression of data. Compare radioactivity counts for samples 
obtained from control and treated animals with counts obtained from the 
standard curve. By comparing the immunoreactivity (counts) of each 
sample with that of the standard curve, the relative amount of GFAP in 
each sample can be determined and expressed as a percent of control.
    (d) Data Reporting and Evaluation--(1) Test Report. In addition to 
information meeting the requirements stated under 40 CFR 79.60, the 
following specific information shall be reported:
    (i) Body weight and brain region weights at time of sacrifice for 
each subject tested;
    (ii) Indication of whether each subject survived to sacrifice or 
time of death;
    (iii) Data from control animals and blank samples; and
    (iv) Statistical evaluation of results;

[[Page 98]]

    (2) Evaluation of Results. (i) Results shall be evaluated in terms 
of the extent of change in the amount of GFAP as a function of treatment 
and dose. GFAP assays (of any brain region) from a minimum of 6 samples 
typically will result in a standard error of the mean of 5 percent. In this case, a chemically-induced increase 
in GFAP of 115 percent of control is likely to be statistically 
significant.
    (ii) The results of this assay shall be compared to and evaluated 
with any relevant behavioral and histopathological data.
    (e) References. For additional background information on this test 
guideline the following references should be consulted.
    (1) Brock, T.O and O'Callaghan, J.P. 1987. Quantitative changes in 
the synaptic vesicle proteins, synapsin I and p38 and the astrocyte 
specific protein, glial fibrillary acidic protein, are associated with 
chemical-induced injury to the rat central nervous system, J. Neurosci. 
7:931-942.
    (2) Jahn, R., Schiebler, W. Greengard, P. 1984. A quantitative dot-
immunobinding assay for protein using nitrocellulose membrane filters. 
Proc. Natl. Acad. Sci. U.S.A. 81:1684-1687.
    (3) O'Callaghan, J.P. 1988. Neurotypic and gliotypic protein as 
biochemical markers of neurotoxicity. Neurotoxicol. Teratol. 10:445-452.
    (4) O'Callaghan, J.P. 1991. Quantification of glial fibrillary 
acidic protein: comparison of slot-immunobinding assays with a novel 
sandwich ELISA. Neurotoxicol. Teratol. 13:275-281.
    (5) O'Callaghan, J.P. and Miller, D.B. 1985. Cerebellar hypoplasia 
in the Gunn rat is associated with quantitative changes in neurotypic 
and gliotypic proteins. J. Pharmacol. Exp. Ther. 234:522-532.
    (6) Sette, W.F. ``Pesticide Assessment Guidelines, Subdivision `F', 
Hazard Evaluation: Human and Domestic Animals, Addendum 10, 
Neurotoxicity, Series 81, 82, and 83'' US-EPA, Office of Pesticide 
Programs, EPA-540/09-91-123, March 1991.
    (7) Smith, P.K., Krohn, R.I., Hermanson, G.T., Mallia, A.K., 
Gartner, F.H., Provenzano, M.D., Fujimoto, E.K., Goeke, N.M., Olson, 
B.J., Klenk, D.C. 1985. Measurement of protein using bicinchoninic acid. 
Annal. Biochem. 150:76-85.



Sec.  79.68  Salmonella typhimurium reverse mutation assay.

    (a) Purpose. The Salmonella typhimurium histidine (his) reversion 
system is a microbial assay which measures his- [rarr] his\ + 
\ reversion induced by chemicals which cause base changes or frameshift 
mutations in the genome of the microorganism Salmonella typhimurium.
    (b) Definitions. For the purposes of this section, the following 
definitions apply:

    Base pair mutagen means an agent which causes a base change in DNA. 
In a reversion assay, this change may occur at the site of the original 
mutation or at a second site in the chromosome.
    Frameshift mutagen is an agent which causes the addition or deletion 
of single or multiple base pairs in the DNA molecule.
    Salmonella typhimurium reverse mutation assay detects mutation in a 
gene of a histidine-requiring strain to produce a histidine independent 
strain of this organism.

    (c) Reference substances. These may include, but need not be limited 
to, sodium azide, 2-nitrofluorene, 9-aminoacridine, 2-aminoanthracene, 
congo red, benzopurpurin 4B, trypan blue or direct blue 1.
    (d) Test method--(1) Principle. Motor vehicle combustion emissions 
from fuel or additive/base fuel mixtures are, first, filtered to trap 
particulate matter and, then, passed through a sorbent resin to trap 
semi-volatile gases. Bacteria are separately exposed to the extract from 
both the filtered particulates and the resin-trapped organics. Assays 
are conducted using both test mixtures with and without a metabolic 
activation system and exposed cells are plated onto minimal medium. 
After a suitable period of incubation, revertant colonies are counted in 
test cultures and compared to the number of spontaneous revertants in 
unexposed control cultures.
    (2) Description. Several methods for performing the test have been 
described. The procedures described here are for the direct plate 
incorporation

[[Page 99]]

method and the azo-reduction method. Among those used are:
    (i) Direct plate incorporation method;
    (ii) Preincubation method;
    (iii) Azo-reduction method;
    (iv) Microsuspension method; and
    (v) Spiral assay.
    (3) Strain selection--(i) Designation. Five tester strains shall be 
used in the assay. At the present time, TA1535, TA1537, TA98, and TA100 
are designated as tester strains. The fifth strain will be chosen from 
the pool of Salmonella strains commonly used to determine the degree to 
which nitrated organic compounds, i.e., nitroarenes, contribute to the 
overall mutagenic activity of a test substance. TA98/1,8-DNP6 
or other suitable Rosenkranz nitro-reductase resistant strains will be 
considered acceptable. The choice of the particular strain is left to 
the discretion of the researcher. However, the researcher shall justify 
the use of the selected bacterial tester strains.
    (ii) Preparation and storage of bacterial tester strains. Recognized 
methods of stock culture preparation and storage shall be used. The 
requirement of histidine for growth shall be demonstrated for each 
strain. Other phenotypic characteristics shall be checked using such 
methods as crystal violet sensitivity and resistance to ampicillin. 
Spontaneous reversion frequency shall be in the range expected as 
reported in the literature and as established in the laboratory by 
historical control values.
    (iii) Bacterial growth. Fresh cultures of bacteria shall be grown up 
to the late exponential or early stationary phase of growth 
(approximately 108-109 cells per ml).
    (4) Exogenous metabolic activation. Bacteria shall be exposed to the 
test substance both in the presence and absence of an appropriate 
exogenous metabolic activation system. For the direct plate 
incorporation method, the most commonly used system is a cofactor-
supplemented postmitochondrial fraction prepared from the livers of 
rodents treated with enzyme-inducing agents, such as Aroclor 1254. For 
the azo-reduction method, a cofactor- supplemented postmitochondrial 
fraction (S-9) prepared from the livers of untreated hamsters is 
preferred. For this method, the cofactor supplement shall contain flavin 
mononucleotide, exogenous glucose 6-phosphate dehydrogenase, NADH and 
excess of glucose-6-phosphate.
    (5) Control groups--(i) Concurrent controls. Concurrent positive and 
negative (untreated) controls shall be included in each experiment. 
Positive controls shall ensure both strain responsiveness and efficacy 
of the metabolic activation system.
    (ii) Strain specific positive controls shall be included in the 
assay. Examples of strain specific positive controls are as follows:
    (A) Strain TA1535, TA100: sodium azide;
    (B) TA98: 2-nitrofluorene (without activation), 2-anthramine (with 
activation);
    (C) TA1537: 9-aminoacridine; and
    (D) TA98/1,8-DNP6: benzo(a)pyrene (with activation).
    The papers by Claxton et al., 1991 and 1992 in paragraph (g) in this 
section will provide helpful information for the selection of positive 
controls.
    (iii) Positive controls to ensure the efficacy of the activation 
system. The positive control reference substances for tests including a 
metabolic activation system shall be selected on the basis of the type 
of activation system used in the test. 2-Aminoanthracene is an example 
of a positive control compound in plate-incorporation tests using 
postmitochondrial fractions from the livers of rodents treated with 
enzyme-inducing agents such as Aroclor-1254. Congo red is an example of 
a positive control compound in the azo-reduction method. Other positive 
control reference substances may be used.
    (iv) Class-specific positive controls. The azo-reduction method 
shall include positive controls from the same class of compounds as the 
test agent wherever possible.
    (6) Sampling the test atmosphere. (i) Extracts of test emissions are 
collected on Teflon [supreg]-coated glass fiber filters using an exhaust 
dilution setup. The particulates are extracted with dichloromethane 
(DCM) using Soxhlet extraction techniques. Extracts in DCM can be stored 
at dry ice temperatures until use.

[[Page 100]]

    (ii) Gaseous hydrocarbons passing through the filter are trapped by 
a porous, polymer resin, like XAD-2/styrene-divinylbenzene, or an 
equivalent product. Methylene chloride is used to extract the resin and 
the sample is evaporated to dryness before storage or use.
    (iii) Samples taken from this material are then used to expose the 
cells in this assay. Final concentration of extracts in solvent/vehicle, 
or after solvent exchange, shall not interfere with cell viability or 
growth rate. The paper by Stump (1982) in paragraph (g) of this section 
is useful for preparing extracts of particulate and semi-volatile 
organic compounds from diesel and gasoline exhaust stream.
    (iv) Exposure concentrations. (A) The test should initially be 
performed over a broad range of concentrations. Among the criteria to be 
taken into consideration for determining the upper limits of test 
substance concentration are cytotoxicity and solubility. Cytotoxicity of 
the test chemical may be altered in the presence of metabolic activation 
systems. Toxicity may be evidenced by a reduction in the number of 
spontaneous revertants, a clearing of the background lawn or by the 
degree of survival of treated cultures. Relatively insoluble samples 
shall be tested up to the limits of solubility. The upper test chemical 
concentration shall be determined on a case by case basis.
    (B) Generally, a maximum of 5 mg/plate for pure substances is 
considered acceptable. At least 5 different concentrations of test 
substance shall be used with adequate intervals between test points.
    (C) When appropriate, a single positive response shall be confirmed 
by testing over a narrow range of concentrations.
    (e) Test performance. All data developed within this study shall be 
in accordance with good laboratory practice provisions under Sec.  
79.60.
    (1) Direct plate incorporation method. When testing with metabolic 
activation, test solution, bacteria, and 0.5 ml of activation mixture 
containing an adequate amount of postmitochondrial fraction shall be 
added to the liquid overlay agar and mixed. This mixture is poured over 
the surface of a selective agar plate. Overlay agar shall be allowed to 
solidify before incubation. At the end of the incubation period, 
revertant colonies per plate shall be counted. When testing without 
metabolic activation, the test sample and 0.1 ml of a fresh bacterial 
culture shall be added to 2.0 ml of overlay agar.
    (2) Azo-reduction method. When testing with metabolic activation, 
0.5 ml of activation mixture containing 150 [micro]l of 
postmitochondrial fraction and 0.1 ml of bacterial culture shall be 
added to a test tube kept on ice. 0.1 ml of test solution shall be 
added, and the tubes shall be incubated with shaking at 30 [deg]C for 30 
minutes. At the end of the incubation period, 2.0 ml of agar shall be 
added to each tube, the contents mixed and poured over the surface of a 
selective agar plate. Overlay agar shall be allowed to solidify before 
incubation. At the end of the incubation period, revertant colonies per 
plate shall be counted. For tests without metabolic activation, 0.5 ml 
of buffer shall be used in place of the 0.5 ml of activation mixture. 
All other procedures shall be the same as those used for the test with 
metabolic activation.
    (3) Other methods/modifications may also be appropriate.
    (4) Media. An appropriate selective medium with an adequate overlay 
agar shall be used.
    (5) Incubation conditions. All plates within a given experiment 
shall be incubated for the same time period. This incubation period 
shall be for 48-72 hours at 37 [deg]C.
    (6) Number of cultures. All plating shall be done at least in 
triplicate.
    (f) Data and report--(1) Treatment of results. Data shall be 
presented as number of revertant colonies per plate, revertants per 
kilogram (or liter) of fuel, and as revertants per kilometer (or mile, 
or brake-horsepower/hour, as appropriate) for each replicate and dose. 
These same measures shall be recorded on both the negative and positive 
control plates. The mean number of revertant colonies per plate, 
revertants per kilogram (or liter) of fuel, and revertants per kilometer 
(or mile, or brake-horsepower/hour), as well as individual plate counts 
and standard deviations shall be presented

[[Page 101]]

for the test substance, positive control, and negative control plates.
    (2) Statistical evaluation. Data shall be evaluated by appropriate 
statistical methods. Those methods shall include, at a minimum, means 
and standard deviations of the reversion data.
    (3) Interpretation of results. (i) There are several criteria for 
determining a positive result, one of which is a statistically 
significant dose-related increase in the number of revertants. Another 
criterion may be based upon detection of a reproducible and 
statistically significant positive response for at least one of the test 
substance concentrations.
    (ii) A test substance which does not produce either a statistically 
significant dose-related increase in the number of revertants or a 
statistically significant and reproducible positive response at any one 
of the test points is considered nonmutagenic in this system.
    (iii) Both biological and statistical significance shall be 
considered together in the evaluation.
    (4) Test evaluation. (i) Positive results from the Salmonella 
typhimurium reverse mutation assay indicate that, under the test 
conditions, the test substance induces point mutations by base changes 
or frameshifts in the genome of this organism.
    (ii) Negative results indicate that under the test conditions the 
test substance is not mutagenic in Salmonella typhimurium.
    (5) Test report. In addition to the reporting recommendations as 
specified under 40 CFR 79.60, the following specific information shall 
be reported:
    (i) Sampling method(s) used and manner in which cells are exposed to 
sample solution;
    (ii) Bacterial strains used;
    (iii) Metabolic activation system used (source, amount and 
cofactor); details of preparation of postmitochondrial fraction;
    (iv) Concentration levels and rationale for selection of 
concentration range;
    (v) Description of positive and negative controls, and 
concentrations used, if appropriate;
    (vi) Individual plate counts, mean number of revertant colonies per 
plate, number of revertants per kilometer (or mile, or brake-horsepower/
hour), and standard deviation; and
    (vii) Dose-response relationship, if applicable.
    (g) References. For additional background information on this test 
guideline, the following references should be consulted.
    (1) 40 CFR 798.5265, The Salmonella typhimurium reverse mutation 
asay.
    (2) Ames, B.N., McCann, J., Yamasaki, E. ``Methods for detecting 
carcinogens and mutagens with the Salmonella/mammalian microsome 
mutagenicity test,'' Mutation Research 31:347-364 (1975).
    (3) Huisingh, J.L., et al.,``Mutagenic and Carcinogenic Potency of 
Extracts of Diesel and Related Environmental Emissions: Study Design, 
Sample Generation, Collection, and Preparation''. In: Health Effects of 
Diesel Engine Emissions, Vol. II, W.E. Pepelko, R., M., Danner and N. A. 
Clarke (Eds.), US EPA, Cincinnati, EPA-600/9-80-057b, pp. 788-800 
(1980).
    (4) [Reserved]
    (5) Claxton, L.D., Allen, J., Auletta, A., Mortelmans, K., Nestmann, 
E., Zeiger, E. ``Guide for the Salmonella typhimurium/mammalian 
microsome tests for bacterial mutagenicity'' Mutation Research 
189(2):83-91 (1987).
    (6) Claxton, L., Houk, V.S., Allison, J.C., Creason, J., 
``Evaluating the relationship of metabolic activation system 
concentrations and chemical dose concentrations for the Salmonella 
Spiral and Plate Assays'' Mutation Research 253:127-136 (1991).
    (7) Claxton, L., Houk, V.S., Monteith, L.G., Myers, L.E., Hughes, 
T.J., ``Assessing the use of known mutagens to calibrate the Salmonella 
typhimurium mutagenicity assay: I. Without exogenous activation.'' 
Mutation Research 253:137-147 (1991).
    (8) Claxton, L., Houk, V.S., Warner, J.R., Myers, L.E., Hughes, 
T.J., ``Assessing the use of known mutagens to calibrate the Salmonella 
typhimurium mutagenicity assay: II. With exogenous activation.'' 
Mutation Research 253:149-159 (1991).
    (9) Claxton, L., Creason, J., Lares, B., Augurell, E., Bagley, S., 
Bryant, D.W., Courtois, Y.A., Douglas, G., Clare, C.B., Goto, S., 
Quillardet, P., Jagannath,

[[Page 102]]

D.R., Mohn, G., Neilsen, P.A., Ohnishi, Y., Ong, T., Pederson, T.C., 
Shimizu, H., Nylund, L., Tokiwa, H., Vink, I.G.R., Wang, Y., Warshawsky, 
D., ``Results of the IPCS Collaborative Study on Complex Mixtures'' 
Mutation Research 276:23-32 (1992).
    (10) Claxton, L., Douglas, G., Krewski, D., Lewtas, J., Matsushita, 
H., Rosenkranz, H., ``Overview, conclusions, and recommendations of the 
IPCS Collaborative Study on Complex Mixtures'' Mutation Research 276:61-
80 (1992).
    (11) Houk, V.S., Schalkowsky, S., and Claxton, L.D., ``Development 
and Validation of the Spiral Salmonella Assay: An Automated Approach to 
Bacterial Mutagenicity Testing'' Mutation Research 223:49-64 (1989).
    (12) Jones, E., Richold, M., May, J.H., and Saje, A. ``The 
Assessment of the Mutagenic Potential of Vehicle Engine Exhaust in the 
Ames Salmonella Assay Using a Direct Exposure Method'' Mutation Research 
97:35-40 (1985).
    (13) Maron, D., and Ames, B. N., Revised methods for the Salmonella 
mutagenicity test, Mutation Research, 113:173-212 (1983).
    (14) Prival, M.J., and Mitchell, V.D. ``Analysis of a method for 
testing azo dyes for mutagenic activity in Salmonella typhimurium in the 
presence of flavin mononucleotide and hamster liver S-9,'' Mutation 
Research 97:103-116 (1982).
    (15) Rosenkranz, H.S., et.al. ``Nitropyrenes: Isolation, 
identification, and reduction of mutagenic impurities in carbon black 
and toners'' Science 209:1039-43 (1980).
    (16) Stump, F., Snow, R., et.al., ``Trapping gaseous hydrocarbons 
for mutagenic testing'' SAE Technical Paper Series, No. 820776 (1982).
    (17) Vogel, H.J., Bonner, D.M. ``Acetylornithinase of E. coli: 
partial purification and some properties,'' Journal of Biological 
Chemistry. 218:97-106 (1956).

[59 FR 33093, June 27, 1994, as amended at 61 FR 36513, July 11, 1996]



PART 80_REGULATION OF FUELS AND FUEL ADDITIVES--Table of Contents



                      Subpart A_General Provisions

Sec.
80.1 Scope.
80.2 Definitions.
80.3 Acronyms and abbreviations.
80.4 Right of entry; tests and inspections.
80.5 Penalties.
80.7 Requests for information.
80.8 Sampling methods for gasoline, diesel fuel, fuel additives, and 
          renewable fuels.
80.9 Rounding.
80.10 Addresses.
80.11 Confidentiality of information.
80.12 Incorporation by reference.

Subpart B [Reserved]

                      Subpart C_Oxygenated Gasoline

80.35 Labeling of retail gasoline pumps; oxygenated gasoline.
80.36-80.39 [Reserved]

Subpart D [Reserved]

                 Subpart E_Biogas-Derived Renewable Fuel

80.100 Scope and application.
80.105 Biogas producers.
80.110 RNG producers, RNG importers, and biogas closed distribution 
          system RIN generators.
80.115 RNG RIN separators.
80.120 Parties that use biogas as a biointermediate or RNG as a 
          feedstock or as process heat or energy.
80.125 RINs for RNG.
80.130 RINs for renewable CNG/LNG from a biogas closed distribution 
          system.
80.135 Registration.
80.140 Reporting.
80.145 Recordkeeping.
80.150 Product transfer documents.
80.155 Sampling, testing, and measurement.
80.160 RNG importers, foreign biogas producers, and foreign RNG 
          producers.
80.165 Attest engagements.
80.170 Quality assurance plan.
80.175 Prohibited acts and liability provisions.
80.180 Affirmative defense provisions.
80.185 Potentially invalid RINs.

Subparts F-L [Reserved]

                    Subpart M_Renewable Fuel Standard

80.1400 Applicability.
80.1401 Definitions.
80.1402 Availability of information; confidentiality of information.

[[Page 103]]

80.1403 Which fuels are not subject to the 20% GHG thresholds?
80.1404 [Reserved]
80.1405 What are the Renewable Fuel Standards?
80.1406 Obligated party responsibilities.
80.1407 How are the Renewable Volume Obligations calculated?
80.1408 What are the requirements for parties that own and redesignate 
          certified NTDF as MVNRLM diesel fuel?
80.1409-80.1414 [Reserved]
80.1415 How are equivalence values assigned to renewable fuel?
80.1416 Petition process for evaluation of new renewable fuels pathways.
80.1417-80.1424 [Reserved]
80.1425 Renewable Identification Numbers (RINs).
80.1426 How are RINs generated and assigned to batches of renewable 
          fuel?
80.1427 How are RINs used to demonstrate compliance?
80.1428 General requirements for RIN distribution.
80.1429 Requirements for separating RINs from volumes of renewable fuel 
          or RNG.
80.1430 Requirements for exporters of renewable fuels.
80.1431 Treatment of invalid RINs.
80.1432 Reported spillage or disposal of renewable fuel.
80.1433 [Reserved]
80.1434 RIN retirement.
80.1435 How are RIN holdings and RIN holding thresholds calculated?
80.1436-80.1439 [Reserved]
80.1440 What are the provisions for blenders who handle and blend less 
          than 250,000 gallons of renewable fuel per year or who handle 
          renewable fuel blended for fuels under a national security 
          exemption?
80.1441 Small refinery exemption.
80.1442 What are the provisions for small refiners under the RFS 
          program?
80.1443 What are the opt-in provisions for noncontiguous states and 
          territories?
80.1444 Alternative RIN retirement schedule for small refineries.
80.1445-80.1448 [Reserved]
80.1449 What are the Production Outlook Report requirements?
80.1450 What are the registration requirements under the RFS program?
80.1451 What are the reporting requirements under the RFS program?
80.1452 What are the requirements related to the EPA Moderated 
          Transaction System (EMTS)?
80.1453 What are the product transfer document (PTD) requirements for 
          the RFS program?
80.1454 What are the recordkeeping requirements under the RFS program?
80.1455 [Reserved]
80.1456 What are the provisions for cellulosic biofuel waiver credits?
80.1457 Petition process for aggregate compliance approach for foreign 
          countries.
80.1458 Storage of renewable fuel, RNG, or biointermediate prior to 
          registration.
80.1459 [Reserved]
80.1460 What acts are prohibited under the RFS program?
80.1461 Who is liable for violations under the RFS program?
80.1462 [Reserved]
80.1463 What penalties apply under the RFS program?
80.1464 What are the attest engagement requirements under the RFS 
          program?
80.1465 [Reserved]
80.1466 What are the additional requirements under this subpart for 
          foreign renewable fuel producers and importers of renewable 
          fuels?
80.1467 What are the additional requirements under this subpart for a 
          foreign RIN owner?
80.1468 [Reserved]
80.1469 Requirements for Quality Assurance Plans.
80.1470 RIN replacement mechanisms for Option A independent third party 
          auditors.
80.1471 Requirements for QAP auditors.
80.1472 Requirements for quality assurance audits.
80.1473 Affirmative defenses.
80.1474 Replacement requirements for invalidly generated RINs.
80.1475 What are the additional attest engagement requirements for 
          parties that redesignate certified NTDF as MVNRLM diesel fuel?
80.1476 Requirements for biointermediate producers.
80.1477 Requirements for QAPs for biointermediate producers.
80.1478 Requirements for foreign biointermediate producers and 
          importers.
80.1479 Alternative recordkeeping requirements for separated yard waste, 
          separated food waste, separated MSW, and biogenic waste oils/
          fats/greases.

Subparts N-O [Reserved]

Appendixes A-G to Part 80 [Reserved]

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

    Source: 38 FR 1255, Jan. 10, 1973, unless otherwise noted.



                      Subpart A_General Provisions



Sec.  80.1  Scope.

    (a) This part prescribes regulations for the renewable fuel program 
under the Clean Air Act section 211(o) (42 U.S.C. 7545(o)).

[[Page 104]]

    (b) This part also prescribes regulations for the labeling of fuel 
dispensing systems for oxygenated gasoline at retail under the Clean Air 
Act section 211(m)(4) (42 U.S.C. 7545(m)(4)).
    (c) Nothing in this part is intended to preempt the ability of state 
or local governments to control or prohibit any fuel or fuel additive 
for use in motor vehicles and motor vehicle engines which is not 
explicitly regulated by this part.

[85 FR 78465, Dec. 4, 2020]



Sec.  80.2  Definitions.

    The definitions of this section apply in this part unless otherwise 
specified. Note that many terms defined here are common terms that have 
specific meanings under this part.
    Actual peak capacity means 105% of the maximum annual volume of 
renewable fuels produced from a specific renewable fuel production 
facility on a calendar year basis.
    (1) For facilities that commenced construction prior to December 19, 
2007, the actual peak capacity is based on the last five calendar years 
prior to 2008, unless no such production exists, in which case actual 
peak capacity is based on any calendar year after startup during the 
first three years of operation.
    (2) For facilities that commenced construction after December 19, 
2007 and before January 1, 2010, that are fired with natural gas, 
biomass, or a combination thereof, the actual peak capacity is based on 
any calendar year after startup during the first three years of 
operation.
    (3) For all other facilities not included above, the actual peak 
capacity is based on the last five calendar years prior to the year in 
which the owner or operator registers the facility under the provisions 
of Sec.  80.1450, unless no such production exists, in which case actual 
peak capacity is based on any calendar year after startup during the 
first three years of operation.
    Adjusted cellulosic content means the percent of organic material 
that is cellulose, hemicellulose, and lignin.
    Advanced biofuel means renewable fuel, other than ethanol derived 
from cornstarch, that has lifecycle greenhouse gas emissions that are at 
least 50 percent less than baseline lifecycle greenhouse gas emissions.
    Agricultural digester means an anaerobic digester that processes 
only animal manure, crop residues, or separated yard waste with an 
adjusted cellulosic content of at least 75%. Each and every material 
processed in an agricultural digester must have an adjusted cellulosic 
content of at least 75%.
    Algae grown photosynthetically are algae that are grown such that 
their energy and carbon are predominantly derived from photosynthesis.
    Annual cover crop means an annual crop, planted as a rotation 
between primary planted crops, or between trees and vines in orchards 
and vineyards, typically to protect soil from erosion and to improve the 
soil between periods of regular crops. An annual cover crop has no 
existing market to which it can be sold except for its use as feedstock 
for the production of renewable fuel.
    Approved pathway means a pathway listed in table 1 to Sec.  80.1426 
or in a petition approved under Sec.  80.1416 that is eligible to 
generate RINs of a particular D code.
    Areas at risk of wildfire are those areas in the ``wildland-urban 
interface'', where humans and their development meet or intermix with 
wildland fuel. Note that, for guidance, the SILVIS laboratory at the 
University of Wisconsin maintains a website that provides a detailed map 
of areas meeting this criteria at: www.silvis.forest.wisc.edu/projects/
US_WUI_2000.asp. The SILVIS laboratory is located at 1630 Linden Drive, 
Madison, Wisconsin 53706 and can be contacted at (608) 263-4349.
    A-RIN means a RIN verified during the interim period by a registered 
independent third-party auditor using a QAP that has been approved under 
Sec.  80.1469(a) following the audit process specified in Sec.  80.1472.
    Assigned RIN means a RIN assigned to a volume of renewable fuel or 
RNG pursuant to Sec.  80.1426(e) or Sec.  80.125(c), respectively, with 
a K code of 1.
    Audited facility means any facility audited under an approved 
quality assurance plan under this part.

[[Page 105]]

    Audited party means a party that pays for or receives services from 
an independent third party under this part.
    Baseline lifecycle greenhouse gas emissions means the average 
lifecycle greenhouse gas emissions for gasoline or diesel (whichever is 
being replaced by the renewable fuel) sold or distributed as 
transportation fuel in 2005.
    Baseline volume means the permitted capacity or, if permitted 
capacity cannot be determined, the actual peak capacity or nameplate 
capacity as applicable pursuant to Sec.  80.1450(b)(1)(v)(A) through 
(C), of a specific renewable fuel production facility on a calendar year 
basis.
    Batch pathway means each combination of approved pathway, 
equivalence value as determined under Sec.  80.1415, and verification 
status for which a facility is registered.
    Biocrude means a liquid biointermediate that meets all the following 
requirements:
    (1) It is produced at a biointermediate production facility using 
one or more of the following processes:
    (i) A process identified in row M under table 1 to Sec.  80.1426.
    (ii) A process identified in a pathway listed in a petition approved 
under Sec.  80.1416 for the production of renewable fuel produced from 
biocrude.
    (2) It is to be used to produce renewable fuel at a refinery as 
defined in 40 CFR 1090.80.
    Biodiesel means a mono-alkyl ester that meets ASTM D6751 
(incorporated by reference, see Sec.  80.12).
    Biodiesel distillation bottoms means the heavier product from 
distillation at a biodiesel production facility that does not meet the 
definition of biodiesel.
    Biogas means a mixture of biomethane, inert gases, and impurities 
that meets all the following requirements:
    (1) It is produced through the anaerobic digestion of renewable 
biomass under an approved pathway.
    (2) Non-renewable components have not been added.
    (3) It requires removal of additional components to be suitable for 
its designated use (e.g., as a biointermediate, to produce RNG, or to 
produce biogas-derived renewable fuel).
    Biogas closed distribution system means the infrastructure contained 
between when biogas is produced and when biogas or treated biogas is 
used to produce biogas-derived renewable fuel within a discrete location 
or series of locations that does not include placement of biogas, 
treated biogas, or RNG on a natural gas commercial pipeline system.
    Biogas closed distribution system RIN generator means any party that 
generates RINs for renewable CNG/LNG in a biogas closed distribution 
system.
    Biogas-derived renewable fuel means renewable CNG/LNG or any other 
renewable fuel that is produced from biogas or RNG, including from 
biogas used as a biointermediate.
    Biogas producer means any person who owns, leases, operates, 
controls, or supervises a biogas production facility.
    Biogas production facility means any facility where biogas is 
produced from renewable biomass under an approved pathway.
    Biogas used as a biointermediate means biogas or treated biogas that 
a renewable fuel producer uses to produce renewable fuel other than 
renewable CNG/LNG at a separate facility from where the biogas is 
produced.
    Biointermediate means any feedstock material that is intended for 
use to produce renewable fuel and meets all the following requirements:
    (1) It is produced from renewable biomass.
    (2) It has not previously had RINs generated for it.
    (3) It is produced at a facility registered with EPA that is 
different than the facility at which it is used as feedstock material to 
produce renewable fuel.
    (4) It is produced from the feedstock material identified in an 
approved pathway, will be used to produce the renewable fuel listed in 
that approved pathway, and is produced and processed in accordance with 
the process(es) listed in that approved pathway.
    (5) Is one of the following types of biointermediate:
    (i) Biocrude.
    (ii) Biodiesel distillate bottoms.
    (iii) Biomass-based sugars.
    (iv) Digestate.
    (v) Free fatty acid (FFA) feedstock.

[[Page 106]]

    (vi) Glycerin.
    (vii) Soapstock.
    (viii) Undenatured ethanol.
    (ix) Biogas used to make a renewable fuel other than renewable CNG/
LNG.
    (6) It is not a feedstock material identified in an approved pathway 
that is used to produce the renewable fuel specified in that approved 
pathway.
    Biointermediate import facility means any facility as defined in 40 
CFR 1090.80 where a biointermediate is imported from outside the covered 
location into the covered location.
    Biointermediate importer means any person who owns, leases, 
operates, controls, or supervises a biointermediate import facility.
    Biointermediate producer means any person who owns, leases, 
operates, controls, or supervises a biointermediate production facility.
    Biointermediate production facility means all of the activities and 
equipment associated with the production of a biointermediate starting 
from the point of delivery of feedstock material to the point of final 
storage of the end biointermediate product, which are located on one 
property, and are under the control of the same person (or persons under 
common control).
    Biomass-based diesel means a renewable fuel that has lifecycle 
greenhouse gas emissions that are at least 50 percent less than baseline 
lifecycle greenhouse gas emissions and meets all of the requirements of 
paragraph (1) of this definition:
    (1)(i) Is a transportation fuel, transportation fuel additive, 
heating oil, or jet fuel.
    (ii) Meets the definition of either biodiesel or non-ester renewable 
diesel.
    (iii) Is registered as a motor vehicle fuel or fuel additive under 
40 CFR part 79, if the fuel or fuel additive is intended for use in a 
motor vehicle.
    (2) Renewable fuel produced from renewable biomass that is co-
processed with petroleum is not biomass-based diesel.
    Biomass-based sugars means sugars (e.g., dextrose, sucrose, etc.) 
extracted from renewable biomass under an approved pathway, other than 
through a form change specified in Sec.  80.1460(k)(2).
    Biomethane means methane produced from renewable biomass.
    B-RIN means a RIN verified during the interim period by a registered 
independent third-party auditor using a QAP that has been approved under 
Sec.  80.1469(b) following the audit process specified in Sec.  80.1472.
    Business day has the meaning given in 40 CFR 1090.80.
    Canola/Rapeseed oil means either of the following:
    (1) Canola oil is oil from the plants Brassica napus, Brassica rapa, 
Brassica juncea, Sinapis alba, or Sinapis arvensis, and which typically 
contains less than 2 percent erucic acid in the component fatty acids 
obtained.
    (2) Rapeseed oil is the oil obtained from the plants Brassica napus, 
Brassica rapa, or Brassica juncea.
    Carrier means any distributor who transports or stores or causes the 
transportation or storage of gasoline or diesel fuel without taking 
title to or otherwise having any ownership of the gasoline or diesel 
fuel, and without altering either the quality or quantity of the 
gasoline or diesel fuel.
    Category 3 (C3) marine vessels, for the purposes of this part 80, 
are vessels that are propelled by engines meeting the definition of 
``Category 3'' in 40 CFR 1042.901.
    CBOB means gasoline blendstock that could become conventional 
gasoline solely upon the addition of oxygenate.
    Cellulosic biofuel means renewable fuel derived from any cellulose, 
hemi-cellulose, or lignin that has lifecycle greenhouse gas emissions 
that are at least 60 percent less than the baseline lifecycle greenhouse 
gas emissions.
    Cellulosic biogas feedstock means an individual feedstock used to 
produce biogas that contains at least 75% average adjusted cellulosic 
content and whose batch pathway has been assigned a D code of 3 or 7.
    Cellulosic diesel is any renewable fuel which meets both the 
definitions of cellulosic biofuel and biomass-based diesel. Cellulosic 
diesel includes heating oil and jet fuel produced from cellulosic 
feedstocks.
    Certified non-transportation 15 ppm distillate fuel or certified 
NTDF means distillate fuel that meets all the following:

[[Page 107]]

    (1) The fuel has been certified under 40 CFR 1090.1000 as meeting 
the ULSD standards in 40 CFR 1090.305.
    (2) The fuel has been designated under 40 CFR 1090.1015 as certified 
NTDF.
    (3) The fuel has also been designated under 40 CFR 1090.1015 as 15 
ppm heating oil, 15 ppm ECA marine fuel, or other non-transportation 
fuel (e.g., jet fuel, kerosene, or distillate global marine fuel).
    (4) The fuel has not been designated under 40 CFR 1090.1015 as ULSD 
or 15 ppm MVNRLM diesel fuel.
    (5) The PTD for the fuel meets the requirements in Sec.  80.1453(e).
    Combined heat and power (CHP), also known as cogeneration, refers to 
industrial processes in which waste heat from the production of 
electricity is used for process energy in a biointermediate or renewable 
fuel production facility.
    Continuous measurement means the automated measurement of specified 
parameters of biogas, treated biogas, or natural gas as follows:
    (1) For in-line GC meters, automated measurement must occur and be 
recorded no less frequent than once every 15 minutes.
    (2) For flow meters, automated measurement must occur no less 
frequent than once every 6 seconds, and weighted totals of such 
measurement must be recorded at no more than 1 minute intervals.
    (3) For all other meters, automated measurement and recording must 
occur at a frequency specified at registration.
    Contractual affiliate means one of the following:
    (1) Two parties are contractual affiliates if they have an explicit 
or implicit agreement in place for one to purchase or hold RINs on 
behalf of the other or to deliver RINs to the other. This other party 
may or may not be registered under the RFS program.
    (2) Two parties are contractual affiliates if one RIN-owning party 
purchases or holds RINs on behalf of the other. This other party may or 
may not be registered under the RFS program.
    Control area means a geographic area in which only oxygenated 
gasoline under the oxygenated gasoline program may be sold or dispensed, 
with boundaries determined by Clean Air Act section 211(m) (42 U.S.C. 
7545(m)).
    Control period means the period during which oxygenated gasoline 
must be sold or dispensed in any control area, pursuant to Clean Air Act 
section 211(m)(2) (42 U.S.C. 7545(m)(2)).
    Conventional gasoline (CG) means any gasoline that has been 
certified under 40 CFR 1090.1000(b) and is not RFG.
    Co-processed means that renewable biomass or a biointermediate was 
simultaneously processed with fossil fuels or other non-renewable 
feedstock in the same unit or units to produce a fuel that is partially 
derived from renewable biomass or a biointermediate.
    Co-processed cellulosic diesel is any renewable fuel that meets the 
definition of cellulosic biofuel and meets all the requirements of 
paragraph (1) of this definition:
    (1)(i) Is a transportation fuel, transportation fuel additive, 
heating oil, or jet fuel.
    (ii) Meets the definition of either biodiesel or non-ester renewable 
diesel.
    (iii) Is registered as a motor vehicle fuel or fuel additive under 
40 CFR part 79, if the fuel or fuel additive is intended for use in a 
motor vehicle.
    (2) Co-processed cellulosic diesel includes all the following:
    (i) Heating oil and jet fuel produced from cellulosic feedstocks.
    (ii) Cellulosic biofuel produced from cellulosic feedstocks co-
processed with petroleum.
    Corn oil extraction means the recovery of corn oil from the thin 
stillage and/or the distillers grains and solubles produced by a dry 
mill corn ethanol plant, most often by mechanical separation.
    Corn oil fractionation means a process whereby seeds are divided in 
various components and oils are removed prior to fermentation for the 
production of ethanol.
    Corporate affiliate means one of the following:
    (1) Two RIN-holding parties are corporate affiliates if one owns or 
controls ownership of more than 20 percent of the other.
    (2) Two RIN-holding parties are corporate affiliates if one parent 
company owns or controls ownership of more than 20 percent of both.

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    Corporate affiliate group means a group of parties in which each 
party is a corporate affiliate to at least one other party in the group.
    Covered location means the contiguous 48 states, Hawaii, and any 
state or territory that has received an approval from EPA to opt-in to 
the RFS program under Sec.  80.1443.
    Crop residue means biomass left over from the harvesting or 
processing of planted crops from existing agricultural land and any 
biomass removed from existing agricultural land that facilitates crop 
management (including biomass removed from such lands in relation to 
invasive species control or fire management), whether or not the biomass 
includes any portion of a crop or crop plant. Biomass is considered crop 
residue only if the use of that biomass for the production of renewable 
fuel has no significant impact on demand for the feedstock crop, 
products produced from that feedstock crop, and all substitutes for the 
crop and its products, nor any other impact that would result in a 
significant increase in direct or indirect GHG emissions.
    Cropland is land used for production of crops for harvest and 
includes cultivated cropland, such as for row crops or close-grown 
crops, and non-cultivated cropland, such as for horticultural or aquatic 
crops.
    Diesel fuel means any of the following:
    (1) Any fuel sold in any State or Territory of the United States and 
suitable for use in diesel engines, and that is one of the following:
    (i) A distillate fuel commonly or commercially known or sold as No. 
1 diesel fuel or No. 2 diesel fuel.
    (ii) A non-distillate fuel other than residual fuel with comparable 
physical and chemical properties (e.g., biodiesel fuel).
    (iii) A mixture of fuels meeting the criteria of paragraphs (1)(i) 
and (ii) of this definition.
    (2) For purposes of subpart M of this part, any and all of the 
products specified at Sec.  80.1407(e).
    Digestate means the material that remains following the anaerobic 
digestion of renewable biomass in an anaerobic digester. Digestate must 
only contain the leftovers that were unable to be completely converted 
to biogas in an anaerobic digestor that is part of an EPA-accepted 
registration under Sec.  80.1450.
    Distillate fuel means diesel fuel and other petroleum fuels that can 
be used in engines that are designed for diesel fuel. For example, jet 
fuel, heating oil, kerosene, No. 4 fuel, DMX, DMA, DMB, and DMC are 
distillate fuels; and natural gas, LPG, gasoline, and residual fuel are 
not distillate fuels. Blends containing residual fuel may be distillate 
fuels.
    Distillers corn oil means corn oil recovered at any point downstream 
of when a dry mill ethanol or butanol plant grinds the corn, provided 
that the corn starch is converted to ethanol or butanol, the recovered 
oil is unfit for human food use without further refining, and the 
distillers grains remaining after the dry mill and oil recovery 
processes are marketable as animal feed.
    Distillers sorghum oil means grain sorghum oil recovered at any 
point downstream of when a dry mill ethanol or butanol plant grinds the 
grain sorghum, provided that the grain sorghum is converted to ethanol 
or butanol, the recovered oil is unfit for human food use without 
further refining, and the distillers grains remaining after the dry mill 
and oil recovery processes are marketable as animal feed.
    Distributor means any person who transports or stores or causes the 
transportation or storage of gasoline or diesel fuel at any point 
between any gasoline or diesel fuel refinery or importer's facility and 
any retail outlet or wholesale purchaser-consumer's facility.
    DX RIN means a RIN with a D code of X, where X is the D code of the 
renewable fuel as identified under Sec.  80.1425(g), generated under 
Sec.  80.1426, and submitted under Sec.  80.1452. For example, a D6 RIN 
is a RIN with a D code of 6.
    ECA marine fuel is diesel, distillate, or residual fuel that meets 
the criteria of paragraph (1) of this definition, but not the criteria 
of paragraph (2) of this definition.
    (1) All diesel, distillate, or residual fuel used, intended for use, 
or made available for use in Category 3 marine vessels while the vessels 
are operating

[[Page 109]]

within an Emission Control Area (ECA), or an ECA associated area, is ECA 
marine fuel, unless it meets the criteria of paragraph (2) of this 
definition.
    (2) ECA marine fuel does not include any of the following fuel:
    (i) Fuel used by exempted or excluded vessels (such as exempted 
steamships), or fuel used by vessels allowed by the U.S. government 
pursuant to MARPOL Annex VI Regulation 3 or Regulation 4 to exceed the 
fuel sulfur limits while operating in an ECA or an ECA associated area 
(see 33 U.S.C. 1903).
    (ii) Fuel that conforms fully to the requirements of this part for 
MVNRLM diesel fuel (including being designated as MVNRLM).
    (iii) Fuel used, or made available for use, in any diesel engines 
not installed on a Category 3 marine vessel.
    Ecologically sensitive forestland means forestland that meets either 
of the following criteria:
    (1) An ecological community with a global or state ranking of 
critically imperiled, imperiled or rare pursuant to a State Natural 
Heritage Program. For examples of such ecological communities, see 
``Listing of Forest Ecological Communities Pursuant to 40 CFR 80.1401; 
S1-S3 communities,'' which is number EPA-HQ-OAR-2005-0161-1034.1 in the 
public docket, and ``Listing of Forest Ecological Communities Pursuant 
to 40 CFR 80.1401; G1-G2 communities,'' which is number EPA-HQ-OAR-2005-
0161-2906.1 in the public docket. This material is available for 
inspection at the EPA Docket Center, EPA/DC, EPA West, Room 3334, 1301 
Constitution Ave. NW, Washington, DC. The telephone number for the Air 
Docket is (202) 566-1742.
    (2) Old growth or late successional, characterized by trees at least 
200 years in age.
    End of day means 7 a.m. Coordinated Universal Time (UTC).
    Energy cane means a complex hybrid in the Saccharum genus that has 
been bred to maximize cellulosic rather than sugar content. For the 
purposes of this part:
    (1) Energy cane excludes the species Saccharum spontaneum, but may 
include hybrids derived from S. spontaneum that have been developed and 
publicly released by USDA; and
    (2) Energy cane only includes cultivars that have, on average, at 
least 75% adjusted cellulosic content on a dry mass basis.
    EPA Moderated Transaction System (EMTS) means a closed, EPA 
moderated system that provides a mechanism for screening and tracking 
RINs under Sec.  80.1452.
    Existing agricultural land is cropland, pastureland, and land 
enrolled in the Conservation Reserve Program (administered by the U.S. 
Department of Agriculture's Farm Service Agency) that was cleared or 
cultivated prior to December 19, 2007, and that, on December 19, 2007, 
was:
    (1) Nonforested; and
    (2) Actively managed as agricultural land or fallow, as evidenced by 
records which must be traceable to the land in question, which must 
include one of the following:
    (i) Records of sales of planted crops, crop residue, or livestock, 
or records of purchases for land treatments such as fertilizer, weed 
control, or seeding.
    (ii) A written management plan for agricultural purposes.
    (iii) Documented participation in an agricultural management program 
administered by a Federal, state, or local government agency.
    (iv) Documented management in accordance with a certification 
program for agricultural products.
    Exporter of renewable fuel means all buyers, sellers, and owners of 
the renewable fuel in any transaction that results in renewable fuel 
being transferred from a covered location to a destination outside of 
the covered locations.
    Facility means all of the activities and equipment associated with 
the production of renewable fuel, biogas, treated biogas, RNG, or a 
biointermediate--starting from the point of delivery of feedstock 
material to the point of final storage of the end product--that are 
located on one property and are under the control of the same person (or 
persons under common control).
    Fallow means cropland, pastureland, or land enrolled in the 
Conservation Reserve Program (administered by the

[[Page 110]]

U.S. Department of Agriculture's Farm Service Agency) that is 
intentionally left idle to regenerate for future agricultural purposes 
with no seeding or planting, harvesting, mowing, or treatment during the 
fallow period.
    Feedstock aggregator means any person who collects feedstock from 
feedstock suppliers or other feedstock aggregators and distributes such 
feedstock to a renewable fuel producer, biointermediate producer, or 
other feedstock aggregator.
    Feedstock supplier means any person who generates and supplies 
feedstock to a feedstock aggregator, renewable fuel producer, biogas 
producer, or biointermediate producer.
    Foreign biogas producer means any person who owns, leases, operates, 
controls, or supervises a biogas production facility outside of the 
United States.
    Foreign ethanol producer means a foreign renewable fuel producer who 
produces ethanol for use in transportation fuel, heating oil, or jet 
fuel but who does not add ethanol denaturant to their product as 
specified in paragraph (2) of the definition of ``renewable fuel'' in 
this section.
    Foreign renewable fuel producer means a person from a foreign 
country or from an area outside the covered location who produces 
renewable fuel for use in transportation fuel, heating oil, or jet fuel 
for export to the covered location. Foreign ethanol producers are 
considered foreign renewable fuel producers.
    Foreign RNG producer means any person who owns, leases, operates, 
controls, or supervises an RNG production facility outside of the United 
States.
    Forestland is generally undeveloped land covering a minimum area of 
1 acre upon which the primary vegetative species are trees, including 
land that formerly had such tree cover and that will be regenerated and 
tree plantations. Tree-covered areas in intensive agricultural crop 
production settings, such as fruit orchards, or tree-covered areas in 
urban settings, such as city parks, are not considered forestland.
    Free fatty acid (FFA) feedstock means a biointermediate that is 
composed of at least 50 percent free fatty acids. FFA feedstock must not 
include any free fatty acids from the refining of crude palm oil.
    Fuel for use in an ocean-going vessel means, for this part only:
    (1) Any marine residual fuel (whether burned in ocean waters, Great 
Lakes, or other internal waters);
    (2) Emission Control Area (ECA) marine fuel, pursuant to Sec.  80.2 
and 40 CFR 1090.80 (whether burned in ocean waters, Great Lakes, or 
other internal waters); and
    (3) Any other fuel intended for use only in ocean-going vessels.
    Gasoline means any of the following:
    (1) Any fuel sold in the United States for use in motor vehicles and 
motor vehicle engines, and commonly or commercially known or sold as 
gasoline.
    (2) For purposes of subpart M of this part, any and all of the 
products specified at Sec.  80.1407(c).
    Gasoline blendstock or component means any liquid compound that is 
blended with other liquid compounds to produce gasoline.
    Gasoline blendstock for oxygenate blending (BOB) has the meaning 
given in 40 CFR 1090.80.
    Gasoline treated as blendstock (GTAB) means imported gasoline that 
is excluded from an import facility's compliance calculations, but is 
treated as blendstock in a related refinery that includes the GTAB in 
its refinery compliance calculations.
    Glycerin means a coproduct from the production of biodiesel that 
primarily contains glycerol.
    Heating oil means any of the following:
    (1) Any No. 1, No. 2, or non-petroleum diesel blend that is sold for 
use in furnaces, boilers, and similar applications and which is commonly 
or commercially known or sold as heating oil, fuel oil, and similar 
trade names, and that is not jet fuel, kerosene, or MVNRLM diesel fuel.
    (2) Any fuel oil that is used to heat or cool interior spaces of 
homes or buildings to control ambient climate for human comfort. The 
fuel oil must be liquid at STP and contain no more than 2.5% mass 
solids.
    Importer means any person who imports transportation fuel or 
renewable fuel into the covered location from an area outside of the 
covered location.

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    Independent third-party auditor means a party meeting the 
requirements of Sec.  80.1471(b) that conducts QAP audits and verifies 
RINs, biointermediates, or biogas.
    Interim period means the period between February 21, 2013, and 
December 31, 2014.
    Jet fuel means any distillate fuel used, intended for use, or made 
available for use in aircraft.
    Kerosene means any No.1 distillate fuel commonly or commercially 
sold as kerosene.
    Liquefied petroleum gas (LPG) means a liquid hydrocarbon fuel that 
is stored under pressure and is composed primarily of species that are 
gases at atmospheric conditions (temperature = 25 [deg]C and pressure = 
1 atm), excluding natural gas.
    Locomotive engine means an engine used in a locomotive as defined 
under 40 CFR 92.2.
    Marine engine has the meaning given in 40 CFR 1042.901.
    Membrane separation means the process of dehydrating ethanol to fuel 
grade (99.5% purity) using a hydrophilic membrane.
    Mixed digester means an anaerobic digester that has received 
feedstocks under both an approved pathway with D code 3 or 7 and an 
approved pathway with D code 5 during the current calendar month or the 
previous two calendar months.
    Motor vehicle has the meaning given in Section 216(2) of the Clean 
Air Act (42 U.S.C. 7550(2)).
    Municipal wastewater treatment facility digester means an anaerobic 
digester that processes only municipal wastewater treatment plant sludge 
with an adjusted cellulosic content of at least 75%.
    MVNRLM diesel fuel means any diesel fuel or other distillate fuel 
that is used, intended for use, or made available for use in motor 
vehicles or motor vehicle engines, or as a fuel in any nonroad diesel 
engines, including locomotive and marine diesel engines, except the 
following: Distillate fuel with a T90 at or above 700 [deg]F that is 
used only in Category 2 and 3 marine engines is not MVNRLM diesel fuel, 
and ECA marine fuel is not MVNRLM diesel fuel (note that fuel that 
conforms to the requirements of MVNRLM diesel fuel is excluded from the 
definition of ``ECA marine fuel'' in this section without regard to its 
actual use). Use the distillation test method specified in 40 CFR 
1065.1010 to determine the T90 of the fuel.
    (1) Any diesel fuel that is sold for use in stationary engines that 
are required to meet the requirements of 40 CFR 1090.300, when such 
provisions are applicable to nonroad engines, is considered MVNRLM 
diesel fuel.
    (2) [Reserved]
    Nameplate capacity means the peak design capacity of a facility for 
the purposes of registration of a facility under this part.
    Naphtha means a blendstock or fuel blending component falling within 
the boiling range of gasoline, which is composed of only hydrocarbons, 
is commonly or commercially known as naphtha, and is used to produce 
gasoline or E85 (as defined in 40 CFR 1090.80) through blending.
    Natural gas means a fuel whose primary constituent is methane. 
Natural gas includes RNG.
    Natural gas commercial pipeline system means one or more connected 
pipelines that transport natural gas that meets all the following:
    (1) The natural gas originates from multiple parties.
    (2) The natural gas meets specifications set by the pipeline owner 
or operator.
    (3) The natural gas is delivered to multiple parties in the covered 
location.
    Neat renewable fuel is a renewable fuel to which 1% or less of 
gasoline (as defined in this section) or diesel fuel has been added.
    Non-ester renewable diesel or renewable diesel means renewable fuel 
that is not a mono-alkyl ester and that is either:
    (1) A fuel or fuel additive that meets the Grade No. 1-D or No. 2-D 
specification in ASTM D975 (incorporated by reference, see Sec.  80.12) 
and can be used in an engine designed to operate on conventional diesel 
fuel; or
    (2) A fuel or fuel additive that is registered under 40 CFR part 79 
and can be used in an engine designed to operate using conventional 
diesel fuel.

[[Page 112]]

    Nonforested land means land that is not forestland.
    Non-petroleum diesel means a diesel fuel that contains at least 80 
percent mono-alkyl esters of long chain fatty acids derived from 
vegetable oils or animal fats.
    Non-qualifying fuel use means a use of renewable fuel in an 
application other than transportation fuel, heating oil, or jet fuel.
    Non-renewable component means any material (or any portion thereof) 
blended into biogas or RNG that does not meet the definition of 
renewable biomass.
    Non-renewable feedstock means a feedstock (or any portion thereof) 
that does not meet the definition of renewable biomass or 
biointermediate.
    Non-RIN-generating foreign producer means a foreign renewable fuel 
producer that has been registered by EPA to produce renewable fuel for 
which RINs have not been generated.
    Nonroad diesel engine means an engine that is designed to operate 
with diesel fuel that meets the definition of nonroad engine in 40 CFR 
1068.30, including locomotive and marine diesel engines.
    Nonroad vehicle has the meaning given in Section 216(11) of the 
Clean Air Act (42 U.S.C. 7550(11)).
    Obligated party means any refiner that produces gasoline or diesel 
fuel within the covered location, or any importer that imports gasoline 
or diesel fuel into the covered location, during a compliance period. A 
party that simply blends renewable fuel into gasoline or diesel fuel, as 
specified in Sec.  80.1407(c) or (e), is not an obligated party.
    Ocean-going vessel means vessels that are equipped with engines 
meeting the definition of ``Category 3'' in 40 CFR 1042.901.
    Oxygenate means any substance which, when added to gasoline, 
increases the oxygen content of that gasoline. Lawful use of any of the 
substances or any combination of these substances requires that they be 
``substantially similar'' under section 211(f)(1) of the Clean Air Act 
(42 U.S.C. 7545(f)(1)), or be permitted under a waiver granted by EPA 
under the authority of section 211(f)(4) of the Clean Air Act (42 U.S.C. 
7545(f)(4)).
    Oxygenated gasoline means gasoline which contains a measurable 
amount of oxygenate.
    Pastureland is land managed for the production of select indigenous 
or introduced forage plants for livestock grazing or hay production, and 
to prevent succession to other plant types.
    Permitted capacity means 105% of the maximum permissible volume 
output of renewable fuel that is allowed under operating conditions 
specified in the most restrictive of all applicable preconstruction, 
construction and operating permits issued by regulatory authorities 
(including local, regional, state or a foreign equivalent of a state, 
and federal permits, or permits issued by foreign governmental agencies) 
that govern the construction and/or operation of the renewable fuel 
facility, based on an annual volume output on a calendar year basis. If 
the permit specifies maximum rated volume output on an hourly basis, 
then annual volume output is determined by multiplying the hourly output 
by 8,322 hours per year.
    (1) For facilities that commenced construction prior to December 19, 
2007, the permitted capacity is based on permits issued or revised no 
later than December 19, 2007.
    (2) For facilities that commenced construction after December 19, 
2007 and before January 1, 2010 that are fired with natural gas, 
biomass, or a combination thereof, the permitted capacity is based on 
permits issued or revised no later than December 31, 2009.
    (3) For facilities other than those specified in paragraphs (1) and 
(2) of this definition, permitted capacity is based on the most recent 
applicable permits.
    Pipeline interconnect means the physical injection or withdrawal 
point where RNG is injected or withdrawn into or from the natural gas 
commercial pipeline system.
    Planted crops are all annual or perennial agricultural crops from 
existing agricultural land that may be used as feedstocks for renewable 
fuel, such as grains, oilseeds, sugarcane, switchgrass, prairie grass, 
duckweed, and other species (but not including

[[Page 113]]

algae species or planted trees), providing that they were intentionally 
applied by humans to the ground, a growth medium, a pond or tank, either 
by direct application as seed or plant, or through intentional natural 
seeding or vegetative propagation by mature plants introduced or left 
undisturbed for that purpose.
    Planted trees are trees harvested from a tree plantation.
    Pre-commercial thinnings are trees, including unhealthy or diseased 
trees, removed to reduce stocking to concentrate growth on more 
desirable, healthy trees, or other vegetative material that is removed 
to promote tree growth.
    Professional liability insurance means insurance coverage for 
liability arising out of the performance of professional or business 
duties related to a specific occupation, with coverage being tailored to 
the needs of the specific occupation. Examples include abstracters, 
accountants, insurance adjusters, architects, engineers, insurance 
agents and brokers, lawyers, real estate agents, stockbrokers, and 
veterinarians. For purposes of this definition, professional liability 
insurance does not include directors and officers liability insurance.
    Q-RIN means a RIN verified by a registered independent third-party 
auditor using a QAP that has been approved under Sec.  80.1469(c) 
following the audit process specified in Sec.  80.1472.
    Quality assurance audit means an audit of a renewable fuel 
production facility or biointermediate production facility conducted by 
an independent third-party auditor in accordance with a QAP that meets 
the requirements of Sec. Sec.  80.1469, 80.1472, and 80.1477.
    Quality assurance plan (QAP) means the list of elements that an 
independent third-party auditor will check to verify that the RINs 
generated by a renewable fuel producer or importer are valid or to 
verify the appropriate production of a biointermediate. A QAP includes 
both general and pathway specific elements.
    Raw starch hydrolysis means the process of hydrolyzing corn starch 
into simple sugars at low temperatures, generally not exceeding 100 
[deg]F (38 [deg]C), using enzymes designed to be effective under these 
conditions.
    Refiner means any person who owns, leases, operates, controls, or 
supervises a refinery.
    Refinery means any facility, including but not limited to, a plant, 
tanker truck, or vessel where gasoline or diesel fuel is produced, 
including any facility at which blendstocks are combined to produce 
gasoline or diesel fuel, or at which blendstock is added to gasoline or 
diesel fuel.
    Reformulated gasoline (RFG) means any gasoline whose formulation has 
been certified under 40 CFR 1090.1000(b), and which meets each of the 
standards and requirements prescribed under 40 CFR 1090.220.
    Reformulated gasoline blendstock for oxygenate blending (RBOB) means 
a petroleum product that, when blended with a specified type and 
percentage of oxygenate, meets the definition of reformulated gasoline, 
and to which the specified type and percentage of oxygenate is added 
other than by the refiner or importer of the RBOB at the refinery or 
import facility where the RBOB is produced or imported.
    Renewable biomass means each of the following (including any 
incidental, de minimis contaminants that are impractical to remove and 
are related to customary feedstock production and transport):
    (1) Planted crops and crop residue harvested from existing 
agricultural land cleared or cultivated prior to December 19, 2007 and 
that was nonforested and either actively managed or fallow on December 
19, 2007.
    (2) Planted trees and tree residue from a tree plantation located on 
non-federal land (including land belonging to an Indian tribe or an 
Indian individual that is held in trust by the U.S. or subject to a 
restriction against alienation imposed by the U.S.) that was cleared at 
any time prior to December 19, 2007 and actively managed on December 19, 
2007.
    (3) Animal waste material and animal byproducts.
    (4) Slash and pre-commercial thinnings from non-federal forestland 
(including forestland belonging to an Indian tribe or an Indian 
individual, that are held in trust by the United

[[Page 114]]

States or subject to a restriction against alienation imposed by the 
United States) that is not ecologically sensitive forestland.
    (5) Biomass (organic matter that is available on a renewable or 
recurring basis) obtained from within 200 feet of buildings and other 
areas regularly occupied by people, or of public infrastructure, in an 
area at risk of wildfire.
    (6) Algae.
    (7) Separated yard waste or food waste, including recycled cooking 
and trap grease.
    Renewable compressed natural gas or renewable CNG means biogas, 
treated biogas, or RNG that is compressed for use as transportation fuel 
and meets the definition of renewable fuel.
    Renewable electricity means electricity that meets the definition of 
renewable fuel.
    Renewable fuel means a fuel that meets all the following 
requirements:
    (1)(i) Fuel that is produced either from renewable biomass or from a 
biointermediate produced from renewable biomass.
    (ii) Fuel that is used in the covered location to replace or reduce 
the quantity of fossil fuel present in a transportation fuel, heating 
oil, or jet fuel.
    (iii) Has lifecycle greenhouse gas emissions that are at least 20 
percent less than baseline lifecycle greenhouse gas emissions, unless 
the fuel is exempt from this requirement pursuant to Sec.  80.1403.
    (2) Ethanol covered by this definition must be denatured using an 
ethanol denaturant as required in 27 CFR parts 19 through 21. Any volume 
of ethanol denaturant added to the undenatured ethanol by a producer or 
importer in excess of 2 volume percent must not be included in the 
volume of ethanol for purposes of determining compliance with the 
requirements of this part.
    Renewable gasoline means renewable fuel produced from renewable 
biomass that is composed of only hydrocarbons and that meets the 
definition of gasoline.
    Renewable gasoline blendstock means a blendstock produced from 
renewable biomass that is composed of only hydrocarbons and which meets 
the definition of gasoline blendstock in Sec.  80.2.
    Renewable Identification Number (RIN) is a unique number generated 
to represent a volume of renewable fuel pursuant to Sec. Sec.  80.1425 
and 80.1426.
    (1) Gallon-RIN is a RIN that represents an individual gallon of 
renewable fuel used for compliance purposes pursuant to Sec.  80.1427 to 
satisfy a renewable volume obligation.
    (2) Batch-RIN is a RIN that represents multiple gallon-RINs.
    Renewable liquefied natural gas or renewable LNG means biogas, 
treated biogas, or RNG that is liquified (i.e., it is cooled below its 
boiling point) for use as transportation fuel and meets the definition 
of renewable fuel.
    Renewable natural gas (RNG) means a product that meets all the 
following requirements:
    (1) It is produced from biogas.
    (2) It does not require removal of additional components to be 
suitable for injection into the natural gas commercial pipeline system.
    (3) It is used to produce renewable fuel.
    Residual fuel means a petroleum fuel that can only be used in diesel 
engines if it is preheated before injection. For example, No. 5 fuels, 
No. 6 fuels, and RM grade marine fuels are residual fuels. Note: 
Residual fuels do not necessarily require heating for storage or 
pumping.
    Responsible corporate officer (RCO) has the meaning given in 40 CFR 
1090.80.
    Retail outlet means any establishment at which gasoline, diesel 
fuel, natural gas or liquefied petroleum gas is sold or offered for sale 
for use in motor vehicles or nonroad engines, including locomotive or 
marine engines.
    Retailer means any person who owns, leases, operates, controls, or 
supervises a retail outlet.
    RIN-generating foreign producer means a foreign renewable fuel 
producer that has been registered by EPA to generate RINs for renewable 
fuel it produces.
    RIN generator means any party allowed to generate RINs under this 
part.
    RIN-less RNG means RNG produced by a foreign RNG producer and for 
which RINs were not generated by the foreign RNG producer.
    RNG importer means any person who imports RNG into the covered 
location

[[Page 115]]

and generates RINs for the RNG as specified in Sec.  80.125.
    RNG producer means any person who owns, leases, operates, controls, 
or supervises an RNG production facility.
    RNG production facility means a facility where biogas is upgraded to 
RNG under an approved pathway.
    RNG RIN separator means any person registered to separate RINs for 
RNG under Sec.  80.125(d).
    RNG used as a feedstock or RNG as a feedstock means any RNG used to 
produce renewable fuel under Sec.  80.125.
    Separated food waste means a feedstock stream consisting of food 
waste kept separate since generation from other waste materials, and 
which includes food and beverage production waste and post-consumer food 
and beverage waste.
    Separated municipal solid waste or separated MSW means material 
remaining after separation actions have been taken to remove recyclable 
paper, cardboard, plastics, rubber, textiles, metals, and glass from 
municipal solid waste, and which is composed of both cellulosic and non-
cellulosic materials.
    Separated RIN means a RIN with a K code of 2 that has been separated 
from a volume of renewable fuel or RNG pursuant to Sec.  80.1429.
    Separated yard waste means a feedstock stream consisting of yard 
waste kept separate since generation from other waste materials.
    Slash is the residue, including treetops, branches, and bark, left 
on the ground after logging or accumulating as a result of a storm, 
fire, delimbing, or other similar disturbance.
    Small refinery means a refinery for which the average aggregate 
daily crude oil throughput (as determined by dividing the aggregate 
throughput for the calendar year by the number of days in the calendar 
year) does not exceed 75,000 barrels.
    Soapstock means an emulsion, or the oil obtained from separation of 
that emulsion, produced by washing oils listed as a feedstock in an 
approved pathway with water.
    Standard temperature and pressure (STP) means 60 degrees Fahrenheit 
and 1 atmosphere of pressure.
    Transportation fuel means fuel for use in motor vehicles, motor 
vehicle engines, nonroad vehicles, or nonroad engines (except fuel for 
use in ocean-going vessels).
    Treated biogas means a product that meets all the following 
requirements:
    (1) It is produced from biogas.
    (2) It does not require removal of additional components to be 
suitable for its designated use (e.g., as a biointermediate or to 
produce biogas-derived renewable fuel).
    (3) It is used in a biogas closed distribution system as a 
biointermediate or to produce biogas-derived renewable fuel.
    Tree plantation is a stand of no less than 1 acre composed primarily 
of trees established by hand- or machine-planting of a seed or sapling, 
or by coppice growth from the stump or root of a tree that was hand- or 
machine-planted. Tree plantations must have been cleared prior to 
December 19, 2007 and must have been actively managed on December 19, 
2007, as evidenced by records which must be traceable to the land in 
question, which must include:
    (1) Sales records for planted trees or tree residue together with 
other written documentation connecting the land in question to these 
purchases;
    (2) Purchasing records for seeds, seedlings, or other nursery stock 
together with other written documentation connecting the land in 
question to these purchases;
    (3) A written management plan for silvicultural purposes;
    (4) Documentation of participation in a silvicultural program 
sponsored by a Federal, state, or local government agency;
    (5) Documentation of land management in accordance with an 
agricultural or silvicultural product certification program;
    (6) An agreement for land management consultation with a 
professional forester that identifies the land in question; or
    (7) Evidence of the existence and ongoing maintenance of a road 
system or other physical infrastructure designed and maintained for 
logging use, together with one of the above-mentioned documents.

[[Page 116]]

    Tree residue is slash and any woody residue generated during the 
processing of planted trees from tree plantations for use in lumber, 
paper, furniture, or other applications, provided that such woody 
residue is not mixed with similar residue from trees that do not 
originate in tree plantations.
    Undenatured ethanol means a liquid that meets one of the definitions 
in paragraph (1) of this definition:
    (1)(i) Ethanol that has not been denatured as required in 27 CFR 
parts 19 through 21.
    (ii) Specially denatured alcohol as defined in 27 CFR 21.11.
    (2) Undenatured ethanol is not renewable fuel.
    United States has the meaning given in 40 CFR 1090.80.
    Verification status means a description of whether biogas, treated 
biogas, RNG, or a RIN has been verified under an EPA-approved quality 
assurance plan.
    Verified RIN means a RIN generated by a renewable fuel producer that 
was subject to a QAP audit executed by an independent third-party 
auditor, and determined by the independent third-party auditor to be 
valid. Verified RINs includes A-RINs, B-RINs, and Q-RINs.
    Wholesale purchaser-consumer means any person that is an ultimate 
consumer of gasoline, diesel fuel, natural gas, or liquefied petroleum 
gas and which purchases or obtains gasoline, diesel fuel, natural gas or 
liquefied petroleum gas from a supplier for use in motor vehicles or 
nonroad engines, including locomotive or marine engines and, in the case 
of gasoline, diesel fuel, or liquefied petroleum gas, receives delivery 
of that product into a storage tank of at least 550-gallon capacity 
substantially under the control of that person.

[88 FR 44555, July 12, 2023]



Sec.  80.3  Acronyms and abbreviations.

------------------------------------------------------------------------
 
------------------------------------------------------------------------
AB................................  Advanced biofuel.
APHA..............................  American Public Health Association.
API...............................  American Petroleum Institute.
ASTM..............................  ASTM International.
BBD...............................  Biomass-based diesel.
BMP...............................  Best management practices.
BOB...............................  Gasoline before oxygenate blending.
CAA...............................  Clean Air Act.
CB................................  Cellulosic biofuel.
CBOB..............................  Conventional gasoline before
                                     oxygenate blending.
CF................................  Converted fraction.
CG................................  Conventional gasoline.
CHP...............................  Combined heat and power.
CNG...............................  Compressed natural gas.
CPI-U.............................  Consumer Price Index for All Urban
                                     Consumers.
ECA...............................  Emission Control Area.
EDRR..............................  Early detection and rapid response.
EIA...............................  Energy Information Administration.
EMTS..............................  EPA Moderated Transaction System.
EPA...............................  Environmental Protection Agency.
EqV...............................  Equivalence value.
ERVO..............................  Exporter renewable volume
                                     obligation.
FE................................  Feedstock energy.
FFA...............................  Free-fatty acid.
GC................................  Gas chromatography.
GHG...............................  Greenhouse gas.
GTAB..............................  Gasoline treated as blendstock.
HACCP.............................  Hazard Analysis Critical Control
                                     Point.
HHV...............................  Higher heating value.
IBR...............................  Incorporation by reference.
ID................................  Identification.
kWh...............................  Kilowatt-hour.
LE................................  Limited exemption.
LHV...............................  Lower heating value.
LNG...............................  Liquified natural gas.
MSW...............................  Municipal solid waste.
MVNRLM............................  Motor vehicle, nonroad, locomotive,
                                     or marine.
NARA..............................  National Archives and Records
                                     Administration.
NTDF..............................  Non-transportation 15 ppm distillate
                                     fuel.
PIR...............................  Potentially invalid RIN.
PM10..............................  Particulate matter generally 10
                                     micrometers or smaller.
PM2.5.............................  Particulate matter generally 2.5
                                     micrometers or smaller.
PTD...............................  Product transfer document.
QAP...............................  Quality assurance plan.
RBOB..............................  Reformulated gasoline before
                                     oxygenate blending.
RCO...............................  Responsible corporate officer.
RF................................  Renewable fuel.
RFS...............................  Renewable Fuel Standard.
RFS-FRRF..........................  RFS foreign refiner renewable fuel.
RIN...............................  Renewable identification number.
RNG...............................  Renewable natural gas.
RVO...............................  Renewable volume obligation.
STP...............................  Standard temperature and pressure.
U.S...............................  United States.
ULSD..............................  Ultra-low-sulfur diesel fuel.
USDA..............................  United States Department of
                                     Agriculture.
UTC...............................  Coordinated Universal Time.
VCSB..............................  Voluntary consensus standards body.
------------------------------------------------------------------------


[88 FR 44562, July 12, 2023]



Sec.  80.4  Right of entry; tests and inspections.

    EPA, upon presentation of appropriate credentials, shall have a 
right to enter upon or through any refinery, retail outlet, wholesale 
purchaser-consumer facility, or detergent manufacturer facility; or the 
premises or property of any gasoline or detergent distributor, carrier, 
or importer; or any

[[Page 117]]

place where gasoline or detergent is stored; and shall have the right to 
make inspections, take samples, obtain information and records, and 
conduct tests to determine compliance with the requirements of this 
part.

[61 FR 35356, July 5, 1996, as amended at 88 FR 44562, July 12, 2023]



Sec.  80.5  Penalties.

    Any person who violates these regulations shall be liable to the 
United States for a civil penalty of not more than the sum of $25,000 
for every day of such violation and the amount of economic benefit or 
savings resulting from the violation. Any violation with respect to a 
regulation proscribed under section 211(c), (k), (l) or (m) of the Act 
which establishes a regulatory standard based upon a multi-day averaging 
period shall constitute a separate day of violation for each and every 
day in the averaging period. Civil penalties shall be assessed in 
accordance with section 205(b) and (c) of the Act.

[58 FR 65554, Dec. 15, 1993]



Sec.  80.7  Requests for information.

    (a) When EPA has reason to believe that a violation of section 
211(c) or section 211(n) of the Clean Air Act and the regulations 
thereunder has occurred, EPA may require any refiner, distributor, 
wholesale purchaser-consumer, or retailer to report the following 
information regarding receipt, transfer, delivery, or sale of gasoline 
represented to be unleaded gasoline and to allow the reproduction of 
such information at all reasonable times.
    (1) For any bulk shipment of gasoline represented to be unleaded 
gasoline which is transferred, sold, or delivered within the previous 6 
months by a refiner or a distributor to a distributor, wholesale 
purchaser-consumer or a retail outlet, the refiner or distributor shall 
maintain and provide the following information as applicable:
    (i) Business or corporate name and address of distributors, 
wholesale purchaser-consumers or retail outlets to which the gasoline 
has been transferred, sold, or delivered.
    (ii) Quantity of gasoline involved.
    (iii) Date of delivery.
    (iv) Storage location of gasoline prior to transit via delivery 
vessel (e.g., location of a bulk terminal).
    (v) Business or corporate name and address of the person who 
delivered the gasoline.
    (vi) Identification of delivery vessel (e.g., truck number). This 
information shall be supplied by the person in paragraph (a)(1)(v) of 
this section who performed the delivery, e.g., common or contract 
carrier.
    (2) For any bulk shipment of gasoline represented to be unleaded 
gasoline received by a retail outlet or a wholesale-purchaser-consumer 
facility within the previous 6 months, whether by purchase or otherwise, 
the retailer or wholesale purchaser-consumer shall maintain 
accessibility to and provide the following information:
    (i) Business or corporate name and address of the distributor.
    (ii) Quantity of gasoline received.
    (iii) Date of receipt.
    (b) Upon request by EPA, any retailer shall provide documentation of 
his annual total sales volume in gallons of gasoline for each retail 
outlet for each calendar year beginning with 1971.
    (c) Any refiner, distributor, wholesale purchaser-consumer, 
retailer, or importer must provide such other information as EPA may 
reasonably require to enable the Agency to determine whether such 
refiner, distributor, wholesale purchaser-consumer, retailer, or 
importer has acted or is acting in compliance with sections 211(c) and 
211(n) of the Clean Air Act and the regulations thereunder and must, 
upon request of EPA, produce and allow reproduction of any relevant 
records at all reasonable times. Such information may include but is not 
limited to records of unleaded gasoline inventory at a wholesale 
purchaser-consumer facility or a retail outlet, unleaded pump meter 
readings at a wholesale purchaser-consumer facility or a retail outlet, 
and receipts providing the date of acquisition of signs, labels, and 
nozzles required by 40 CFR 1090.1550. No

[[Page 118]]

person shall be required to furnish information requested under this 
paragraph if he can establish that such information is not maintained in 
the normal course of his business.

(Secs. 211, 301, Clean Air Act, as amended (42 U.S.C. 1857f-6c, 1857g))

[40 FR 36336, Aug. 20, 1975, as amended at 42 FR 45307, Sept. 9, 1977; 
47 FR 49332, Oct. 29, 1982; 61 FR 3837, Feb. 2, 1996; 85 FR 78467, Dec. 
4, 2020; 88 FR 44562, July 12, 2023]



Sec.  80.8  Sampling methods for gasoline, diesel fuel, fuel additives,
and renewable fuels.

    (a) Manual sampling. Manual sampling of tanks and pipelines shall be 
performed according to the applicable procedures specified in ASTM D4057 
(incorporated by reference, see Sec.  80.12).
    (b) Automatic sampling. Automatic sampling of petroleum products in 
pipelines shall be performed according to the applicable procedures 
specified in ASTM D4177 (incorporated by reference, see Sec.  80.12).
    (c) Sampling and sample handling for volatility measurement. Samples 
to be analyzed for Reid Vapor Pressure (RVP) shall be collected and 
handled according to the applicable procedures specified in ASTM D5842 
(incorporated by reference, see Sec.  80.12).
    (d) Sample compositing. Composite samples shall be prepared using 
the applicable procedures specified in ASTM D5854 (incorporated by 
reference, see Sec.  80.12).

[88 FR 44563, July 12, 2023]



Sec.  80.9  Rounding.

    (a) Test results and calculated values reported to EPA under this 
part must be rounded according to 40 CFR 1090.50(a) through (d).
    (b) Calculated values under this part may only be rounded when 
reported to EPA.
    (c) Reported values under this part must be submitted using forms 
and procedures specified by EPA.

[88 FR 44563, July 12, 2023]



Sec.  80.10  Addresses.

    (a) For submitting notifications, applications, petitions, or other 
communications with EPA, use one of the following addresses for mailing:
    (1) For U.S. Mail: Attn: [TITLE AS DIRECTED], U.S. Environmental 
Protection Agency, 1200 Pennsylvania Ave. NW, Mail Code 6405A, 
Washington, DC 20460.
    (2) For commercial service: Attn: [TITLE AS DIRECTED], U.S. 
Environmental Protection Agency, William Jefferson Clinton Building 
North, Mail Code 6405A, Room 6520V, 1200 Pennsylvania Ave. NW, 
Washington, DC 20004; Phone: 1-800-385-6164.
    (b) [Reserved]

[85 FR 7070, Feb. 6, 2020]



Sec.  80.11  Confidentiality of information.

    (a) Except as specified in paragraph (b) of this section, 
information obtained by the Administrator or his representatives 
pursuant to this part shall be treated, in so far as its confidentiality 
is concerned, in accordance with the provisions of 40 CFR part 2, 
subpart B.
    (b) Information contained in EPA notices of violation, settlement 
agreements, administrative complaints, civil complaints, criminal 
information, and criminal indictments is not entitled to confidential 
treatment and therefore EPA may publicly disclose such information. Such 
information includes the company name and EPA-issued company 
identification number, the facility name and EPA-issued facility 
identification number, the total quantity of fuel and parameter, the 
time or time period when the violation occurred, information relating to 
the generation, transfer, or use of credits, and any other information 
relevant to describing the violation.

[87 FR 39659, July 1, 2022]



Sec.  80.12  Incorporation by reference.

    Certain material is incorporated by reference into this part with 
the approval of the Director of the Federal Register under 5 U.S.C. 
552(a) and 1 CFR part 51. All approved incorporation by reference (IBR) 
material is available for inspection at U.S. EPA and at the National 
Archives and Records Administration (NARA). Contact U.S. EPA at: U.S. 
EPA, Air and Radiation Docket and Information Center, WJC West Building, 
Room 3334,

[[Page 119]]

1301 Constitution Ave. NW, Washington, DC 20460; (202) 566-1742. For 
information on the availability of this material at NARA, visit: 
www.archives.gov/federal-register/cfr/ibr-locations.html or email 
[email protected]. The material may be obtained from the following 
sources:
    (a) American Petroleum Institute (API), 200 Massachusetts Avenue NW, 
Suite 1100, Washington, DC 20001-5571; (202) 682-8000; www.api.org.
    (1) API MPMS 14.1-2016, Manual of Petroleum Measurement Standards 
Chapter 14--Natural Gas Fluids Measurement Section 1--Collecting and 
Handling of Natural Gas Samples for Custody Transfer, 7th Edition, May 
2016 (``API MPMS 14.1''); IBR approved for Sec.  80.155(b).
    (2) API MPMS 14.3.1-2012, Manual of Petroleum Measurement Standards 
Chapter 14.3.1--Orifice Metering of Natural Gas and Other Related 
Hydrocarbon Fluids--Concentric, Square-edged Orifice Meters Part 1: 
General Equations and Uncertainty Guidelines, 4th Edition, including 
Errata July 2013, Reaffirmed, July 2022 (``API MPMS 14.3.1''); IBR 
approved for Sec.  80.155(a).
    (3) API MPMS 14.3.2-2016, Manual of Petroleum Measurement Standards 
Chapter 14.3.2--Orifice Metering of Natural Gas and Other Related 
Hydrocarbon Fluids--Concentric, Square-edged Orifice Meters Part 2: 
Specification and Installation Requirements, 5th Edition, March 2016 
(``API MPMS 14.3.2''); IBR approved for Sec.  80.155(a).
    (4) API MPMS 14.3.3-2013, Manual of Petroleum Measurement Standards 
Chapter 14.3.3--Orifice Metering of Natural Gas and Other Related 
Hydrocarbon Fluids--Concentric, Square-edged Orifice Meters Part 3: 
Natural Gas Applications, 4th Edition, Reaffirmed, June 2021 (``API MPMS 
14.3.3''); IBR approved for Sec.  80.155(a).
    (5) API MPMS 14.3.4-2019, Manual of Petroleum Measurement Standards 
Chapter 14.3.4--Orifice Metering of Natural Gas and Other Related 
Hydrocarbon Fluids--Concentric, Square-edged Orifice Meters Part 4--
Background, Development, Implementation Procedure, and Example 
Calculations, 4th Edition, October 2019 (``API MPMS 14.3.4''); IBR 
approved for Sec.  80.155(a).
    (6) API MPMS 14.12-2017, Manual of Petroleum Measurement Standards 
Chapter 14--Natural Gas Fluid Measurement Section 12--Measurement of Gas 
by Vortex Meters, 1st Edition, March 2017 (``API MPMS 14.12''); IBR 
approved for Sec.  80.155(a).
    Note 1 to paragraph (a):
    API MPMS 14.3.1, 14.3.2, 14.3.3, and 141.3.4, are co-published as 
AGA Report 3, Parts 1, 2, 3, and 4, respectively.
    (b) American Public Health Association (APHA), 1015 15th Street NW, 
Washington, DC 20005; (202) 777-2742; www.standardmethods.org.
    (1) SM 2540, revised June 10, 2020; IBR approved for Sec.  
80.155(c).
    (2) [Reserved]
    (c) ASTM International (ASTM), 100 Barr Harbor Dr., P.O. Box C700, 
West Conshohocken, PA 19428-2959; (877) 909-2786; www.astm.org.
    (1) ASTM D975-21, Standard Specification for Diesel Fuel, approved 
August 1, 2021 (``ASTM D975''); IBR approved for Sec. Sec.  80.2; 
80.1426(f); 80.1450(b); 80.1451(b); 80.1454(l).
    (2) ASTM D1250-19e1, Standard Guide for the Use of the Joint API and 
ASTM Adjunct for Temperature and Pressure Volume Correction Factors for 
Generalized Crude Oils, Refined Products, and Lubricating Oils: API MPMS 
Chapter 11.1, approved May 1, 2019 (``ASTM D1250''); IBR approved for 
Sec.  80.1426(f).
    (3) ASTM D3588-98 (Reapproved 2017)e1, Standard Practice for 
Calculating Heat Value, Compressibility Factor, and Relative Density of 
Gaseous Fuels, approved April 1, 2017 (``ASTM D3588''); IBR approved for 
Sec.  80.155(b) and (f).
    (4) ASTM D4057-12, Standard Practice for Manual Sampling of 
Petroleum and Petroleum Products, approved December 1, 2012 (``ASTM 
D4057''); IBR approved for Sec.  80.8(a).
    (5) ASTM D4177-95 (Reapproved 2010), Standard Practice for Automatic 
Sampling of Petroleum and Petroleum Products, approved May 1, 2010 
(``ASTM D4177''); IBR approved for Sec.  80.8(b).
    (6) ASTM D4442-20, Standard Test Methods for Direct Moisture Content 
Measurement of Wood and Wood-Based Materials, approved March 1, 2020 
(``ASTM D4442''); IBR approved for Sec.  80.1426(f).

[[Page 120]]

    (7) ASTM D4444-13 (Reapproved 2018), Standard Test Method for 
Laboratory Standardization and Calibration of Hand-Held Moisture Meters, 
reapproved July 1, 2018 (``ASTM D4444''); IBR approved for Sec.  
80.1426(f).
    (8) ASTM D4888-20, Standard Test Method for Water Vapor in Natural 
Gas Using Length-of-Stain Detector Tubes, approved December 15, 2020 
(``ASTM D4888''); IBR approved for Sec.  80.155(b).
    (9) ASTM D5504-20, Standard Test Method for Determination of Sulfur 
Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and 
Chemiluminescence, approved November 1, 2020 (``ASTM D5504''); IBR 
approved for Sec.  80.155(b).
    (10) ASTM D5842-14, Standard Practice for Sampling and Handling of 
Fuels for Volatility Measurement, approved January 15, 2014 (``ASTM 
D5842''); IBR approved for Sec.  80.8(c).
    (11) ASTM D5854-96 (Reapproved 2010), Standard Practice for Mixing 
and Handling of Liquid Samples of Petroleum and Petroleum Products, 
approved May 1, 2010 (``ASTM D5854''); IBR approved for Sec.  80.8(d).
    (12) ASTM D6751-20a, Standard Specification for Biodiesel Fuel Blend 
Stock (B100) for Middle Distillate Fuels, approved August 1, 2020 
(``ASTM D6751''); IBR approved for Sec.  80.2.
    (13) ASTM D6866-22, Standard Test Methods for Determining the 
Biobased Content of Solid, Liquid, and Gaseous Samples Using Radiocarbon 
Analysis, approved March 15, 2022 (``ASTM D6866''); IBR approved for 
Sec. Sec.  80.155(b); 80.1426(f); 80.1430(e).
    (14) ASTM D7164-21, Standard Practice for On-line/At-line Heating 
Value Determination of Gaseous Fuels by Gas Chromatography, approved 
April 1, 2021 (``ASTM D7164''); IBR approved for Sec.  80.155(a).
    (15) ASTM D8230-19, Standard Test Method for Measurement of Volatile 
Silicon-Containing Compounds in a Gaseous Fuel Sample Using Gas 
Chromatography with Spectroscopic Detection, approved June 1, 2019 
(``ASTM D8230''); IBR approved for Sec.  80.155(b).
    (16) ASTM E711-87 (Reapproved 2004), Standard Test Method for Gross 
Calorific Value of Refuse-Derived Fuel by the Bomb Calorimeter, 
reapproved 2004 (``ASTM E711''); IBR approved for Sec.  80.1426(f).
    (17) ASTM E870-82 (Reapproved 2019), Standard Test Methods for 
Analysis of Wood Fuels, reapproved April 1, 2019 (``ASTM E870''); IBR 
approved for Sec.  80.1426(f).
    (d) European Committee for Standardization (CEN), Rue de la Science 
23, B-1040 Brussels, Belgium; + 32 2 550 08 11; www.cencenelec.eu.
    (1) EN 17526:2021(E), Gas meter--Thermal-mass flow-meter based gas 
meter, approved July 11, 2021 (``EN 17526''); IBR approved for Sec.  
80.155(a).
    (2) [Reserved]

[88 FR 44563, July 12, 2023]

Subpart B [Reserved]



                      Subpart C_Oxygenated Gasoline



Sec.  80.35  Labeling of retail gasoline pumps; oxygenated gasoline.

    (a) For oxygenated gasoline programs with a minimum oxygen content 
per gallon or minimum oxygen content requirement in conjunction with a 
credit program, the following shall apply:
    (1) Each gasoline pump stand from which oxygenated gasoline is 
dispensed at a retail outlet in the control area shall be affixed during 
the control period with a legible and conspicuous label which contains 
the following statement:

The gasoline dispensed from this pump is oxygenated and will reduce 
carbon monoxide pollution from motor vehicles.

    (2) The posting of the above statement shall be in block letters of 
no less than 20-point bold type; in a color contrasting with the 
intended background. The label shall be placed on the vertical surface 
of the pump on each side with gallonage and price meters and shall be on 
the upper two-thirds of the pump, clearly readable to the public.
    (3) The retailer shall be responsible for compliance with the 
labeling requirements of this section.
    (b) For oxygenated gasoline programs with a credit program and no 
minimum oxygen content requirement, the following shall apply:
    (1) Each gasoline pump stand from which oxygenated gasoline is 
dispensed

[[Page 121]]

at a retail outlet in the control area shall be affixed during the 
control period with a legible and conspicuous label which contains the 
following statement:

The fuel dispensed from this pump meets the requirements of the Clean 
Air Act as part of a program to reduce carbon monoxide pollution from 
motor vehicles.

    (2) The posting of the above statement shall be in block letters of 
no less than 20-point bold type; in a color contrasting with the 
intended background. The label shall be placed on the vertical surface 
of the pump on each side with gallonage and price meters and shall be on 
the upper two-thirds of the pump, clearly readable to the public.
    (3) The retailer shall be responsible for compliance with the 
labeling requirements of this section.

[57 FR 47771, Oct. 20, 1992]



Sec. Sec.  80.36-80.39  [Reserved]

Subpart D [Reserved]



                 Subpart E_Biogas-Derived Renewable Fuel

    Source: 88 FR 44564, July 12, 2023, unless otherwise noted.



Sec.  80.100  Scope and application.

    (a) Applicability. (1) The provisions of this subpart E apply to all 
the following:
    (i) Biogas.
    (ii) Treated biogas.
    (iii) Biogas-derived renewable fuel.
    (iv) RNG used to produce a biogas-derived renewable fuel.
    (v) RINs generated for RNG or a biogas-derived renewable fuel.
    (2) This subpart also specifies requirements for specified parties 
that engage in activities associated with the production, distribution, 
transfer, or use of biogas, treated biogas, biogas-derived renewable 
fuel, RNG used to produce a biogas-derived renewable fuel, and RINs 
generated for a biogas-derived renewable fuel under the RFS program.
    (b) Relationship to other fuels regulations. (1) The provisions of 
subpart M of this part also apply to the parties and products regulated 
under this subpart E.
    (2) The provisions of 40 CFR part 1090 include provisions that may 
apply to the parties and products regulated under this subpart E.
    (3) Parties and products subject to this subpart E may need to 
register a fuel or fuel additive under 40 CFR part 79.
    (c) Geographic scope. RINs must only be generated for biogas-derived 
renewable fuel used in the covered location.
    (d) Implementation dates--(1) General. The provisions of this 
subpart E apply beginning July 1, 2024, unless otherwise specified.
    (2) Registration. (i) Parties not registered to generate RINs under 
Sec.  80.1426(f)(10)(ii) or (11)(ii) prior to July 1, 2024, must 
register with EPA under Sec.  80.135. EPA will not accept registration 
submissions for the generation of RINs under Sec.  80.1426(f)(10)(ii) 
and (11)(ii) on or after July 1, 2024.
    (ii) Parties registered to generate RINs under Sec.  
80.1426(f)(10)(ii) or (11)(ii) must submit updated registration 
information under Sec.  80.135 no later than October 1, 2024.
    (iii) Independent third-party engineers may conduct engineering 
reviews for parties required to register under Sec.  80.135 prior to 
July 1, 2024, as long as the engineering review satisfies all applicable 
requirements under Sec. Sec.  80.135 and 80.1450.
    (3) Generation of RINs for RNG. RNG producers may only generate RINs 
for RNG produced on or after July 1, 2024, as specified in Sec.  80.125.
    (4) Generation of RINs for renewable CNG/LNG for previously 
registered facilities. (i)(A) Prior to January 1, 2025, RIN generators 
may generate RINs as specified in Sec.  80.1426(f)(10)(ii) or (11)(ii) 
for renewable CNG/LNG produced from a facility covered by a registration 
accepted by EPA under Sec.  80.1450(b) prior to July 1, 2024.
    (B) Biogas or RNG produced under a registration accepted by EPA 
under Sec.  80.1450(b) for the generation of RINs as specified in Sec.  
80.1426(f)(10)(ii) or (11)(ii) prior to July 1, 2024, may only be used 
to generate RINs for renewable CNG/LNG.

[[Page 122]]

    (ii) For biogas produced on or after January 1, 2025, biogas closed 
distribution system RIN generators must generate RINs for renewable CNG/
LNG as specified in Sec.  80.130.
    (5) Generation of RINs for renewable fuel produced from biogas used 
as a biointermediate. Renewable fuel producers must only generate RINs 
for renewable fuel produced from biogas used as a biointermediate 
produced on or after July 1, 2024.



Sec.  80.105  Biogas producers.

    (a) General requirements. (1) Any biogas producer that produces 
biogas for use to produce RNG or a biogas-derived renewable fuel, or 
that produces biogas used as a biointermediate, must comply with the 
requirements of this section.
    (2) The biogas producer must also comply with all other applicable 
requirements of this part and 40 CFR part 1090.
    (3) If the biogas producer meets the definition of more than one 
type of regulated party under this part or 40 CFR part 1090, the biogas 
producer must comply with the requirements applicable to each of those 
types of regulated parties.
    (4) The biogas producer must comply with all applicable requirements 
of this part, regardless of whether the requirements are identified in 
this section.
    (b) Registration. The biogas producer must register with EPA under 
Sec. Sec.  80.135, 80.1450, and 40 CFR part 1090, subpart I, as 
applicable.
    (c) Reporting. The biogas producer must submit reports to EPA under 
Sec. Sec.  80.140 and 80.1451, as applicable.
    (d) Recordkeeping. The biogas producer must create and maintain 
records under Sec. Sec.  80.145 and 80.1454.
    (e) PTDs. On each occasion when the biogas producer transfers title 
of any biogas, the transferor must provide to the transferee PTDs under 
Sec.  80.150.
    (f) Sampling, testing, and measurement. (1) All sampling, testing, 
and measurements must be done in accordance with Sec.  80.155.
    (2)(i) A biogas producer must measure the volume of biogas, in Btu 
HHV, prior to converting biogas to any of the following:
    (A) RNG.
    (B) Treated biogas.
    (C) Biointermediate.
    (D) Biogas-derived renewable fuel.
    (E) Process heat or energy under Sec.  80.1426(f)(12) or (13).
    (ii) Except for biogas produced from a mixed digester, a biogas 
producer must measure the volume of biogas, in Btu HHV, for each batch 
pathway prior to mixing with biogas produced under a different batch 
pathway or with non-qualifying gas.
    (iii) For biogas produced from a mixed digester, a biogas producer 
must do all the following for each mixed digester:
    (A) Measure the volume of biogas, in Btu HHV, prior to mixing with 
any other gas.
    (B) Measure the daily mass of the cellulosic biogas feedstock, in 
pounds, added to the mixed digester.
    (C) Collect a daily representative sample of each cellulosic biogas 
feedstock and test for total solids and volatile solids as specified in 
Sec.  80.155(c).
    (D) Measure and calculate the digester operating conditions as 
specified in Sec.  80.155(d).
    (iv) A biogas producer must measure each volume of gas containing 
biogas, in Btu HHV, that leaves the facility.
    (g) Foreign biogas producer requirements. A foreign biogas producer 
must meet all the requirements that apply to a biogas producer under 
this part, as well as the additional requirements for foreign biogas 
producers specified in Sec.  80.160.
    (h) Attest engagements. The biogas producer must submit annual 
attest engagement reports to EPA under Sec. Sec.  80.165 and 80.1464 
using procedures specified in 40 CFR 1090.1800 and 1090.1805.
    (i) QAP. Prior to the generation of Q-RINs for a biogas-derived 
renewable fuel, the biogas producer must meet all applicable 
requirements specified in Sec.  80.170.
    (j) Batches. (1) Except for biogas produced from a mixed digester, 
the batch volume of biogas is the volume of biogas measured under 
paragraph (f) of this section for a single batch pathway at a single 
facility for a calendar month, in Btu HHV.

[[Page 123]]

    (2) For biogas produced from a mixed digester, the batch volume of 
biogas must be calculated as follows:
    (i) The batch volume of biogas produced under an approved pathway 
with a D code of 5 must be calculated as follows:

VBG,D5 = VBG-VBG,D3/7

Where:

    VBG,D5 = The batch volume of biogas for an approved 
pathway with a D code of 5 for the calendar month, in Btu HHV. If the 
result of this equation is negative, then VBG,D5,p equals 0.
VBG = The total volume of biogas produced by the mixed 
          digester for the calendar month, in Btu HHV, as measured under 
          paragraph (f)(2)(iii)(A) of this section.
VBG,D3/7 = The total batch volume of biogas produced under 
          approved pathways with a D code of 3 or 7 for the calendar 
          month, in Btu HHV, per paragraph (j)(2)(ii) of this section.

    (ii) The batch volume of biogas produced under an approved pathway 
with a D code of 3 or 7 must be calculated as follows:

VBG,D3/7,p = BED3/7,i
VBG,D3/7,p = The batch volume of biogas for batch pathway p 
          with a D code of 3 or 7 for the calendar month, in Btu HHV.
BED3/7,i = The total energy from cellulosic biogas feedstock 
          i that forms energy in the biogas and whose batch pathway has 
          been assigned a D code of 3 or 7 for the calendar month, in 
          Btu HHV, per paragraph (j)(2)(iii) of this section.

    (iii) The biogas energy value for each cellulosic biogas feedstock 
must be calculated as follows:

BED3/7,i,j = Mi,j * TSi,j * 
VSi,j * CFi,j

Where:

BED3/7,i,j = The amount of energy from cellulosic biogas 
          feedstock i that forms energy in the biogas and whose batch 
          pathway has been assigned a D code of 3 or 7 on day j, in Btu 
          HHV.
Mi,j = Mass of cellulosic biogas feedstock i, in pounds, 
          measured on day j, per paragraph (f)(2)(iii)(B) of this 
          section.
TSi,j = Total solids of cellulosic biogas feedstock i, as a 
          mass fraction, in pounds total solids per pound feedstock, for 
          the sample obtained on day j, per paragraph (f)(2)(iii)(C) of 
          this section. If sample results are not available, then 
          TSi,j equals 0.
VSi,j = Volatile solids of cellulosic biogas feedstock i, as 
          a mass fraction, in pounds volatile solids per pound total 
          solids, for the sample obtained on day j, per paragraph 
          (f)(2)(iii)(C) of this section. If sample results are not 
          available, then VSi,j equals 0.
CFi,j = Converted fraction in annual average Btu HHV/lb, 
          representing the portion of cellulosic biogas feedstock i that 
          is converted to biomethane by the producer on day j, per 
          paragraph (j)(2)(iv) of this section. If data for digester 
          operating conditions required under paragraph (f)(2)(iii)(D) 
          of this section are outside the range of operating conditions 
          specified in paragraph (j)(2)(v) of this section or such data 
          to determine the operating conditions does not meet the 
          requirements in Sec.  80.155(d), then CFi,j equals 
          0.

    (iv) Biogas producers must use one of the following cellulosic 
conversion factors, as applicable:
    (A) Swine manure: 1,936 Btu HHV/lb.
    (B) Bovine manure: 2,077 Btu HHV/lb.
    (C) Chicken manure: 3,001 Btu HHV/lb.
    (D) Municipal wastewater treatment sludge: 3,479 Btu HHV/lb.
    (E) A cellulosic conversion factor accepted at registration under 
Sec.  80.135(c)(10)(vi).
    (v) Applicable operating conditions for the cellulosic converted 
fractions specified in paragraph (j)(2)(iv) of this section are the 
following:
    (A) For the cellulosic converted fraction values specified in 
paragraphs (j)(2)(iv)(A) through (D) of this section, the mixed digester 
must continuously operate above 95 degrees Fahrenheit with hydraulic and 
solids mean residence times greater than 20 days.
    (B) For the cellulosic converted fraction value specified in 
paragraph (j)(2)(iv)(E) of this section, the mixed digester must operate 
according to the conditions accepted at registration under Sec.  
80.135(c)(10)(vi)(A)(4).
    (3) The biogas producer must assign a number (the ``batch number'') 
to each batch of biogas consisting of their EPA-issued company 
registration number, the EPA-issued facility registration number, the 
last two digits of the calendar year in which the batch was produced, 
and a unique number for the batch, beginning with the number one for the 
first batch produced each calendar year and each subsequent batch during 
the calendar year being assigned the next sequential number (e.g., 4321-
54321-23-000001, 4321-54321-23-000002, etc.).

[[Page 124]]

    (k) Limitations. (1) For each biogas production facility, the biogas 
producer must only supply biogas for only one of the following uses:
    (i) Production of renewable CNG/LNG via a biogas closed distribution 
system.
    (ii) As a biointermediate via a biogas closed distribution system.
    (iii) Production of RNG.
    (2) For each biogas production facility producing biogas for use as 
a biointermediate in a biogas closed distribution system, the biogas 
producer must only supply biogas or treated biogas to a single renewable 
fuel production facility.
    (3) If the biogas producer operates a municipal wastewater treatment 
facility digester, the biogas producer must not introduce any feedstocks 
into that digester that do not contain at least 75% average adjusted 
cellulosic content.
    (4) The transfer and batch segregation limits specified in Sec.  
80.1476(g) do not apply.



Sec.  80.110  RNG producers, RNG importers, and biogas closed distribution
system RIN generators.

    (a) General requirements. (1) Any RNG producer, RNG importer, or 
biogas closed distribution system RIN generator that generates RINs must 
comply with the requirements of this section.
    (2) The RNG producer, RNG importer, or biogas closed distribution 
system RIN generator must also comply with all other applicable 
requirements of this part and 40 CFR part 1090.
    (3) If the RNG producer, RNG importer, or biogas closed distribution 
system RIN generator meets the definition of more than one type of 
regulated party under this part or 40 CFR 1090, the RNG producer, RNG 
importer, or biogas closed distribution system RIN generator must comply 
with the requirements applicable to each of those types of regulated 
parties.
    (4) The RNG producer, RNG importer, or biogas closed distribution 
system RIN generator must comply with all applicable requirements of 
this part, regardless of whether the requirements are identified in this 
section.
    (5) The transfer and batch segregation limits specified in Sec.  
80.1476(g) do not apply.
    (b) Registration. The RNG producer, RNG importer, or biogas closed 
distribution system RIN generator must register with EPA under 
Sec. Sec.  80.135, 80.1450, and 40 CFR part 1090, subpart I, as 
applicable.
    (c) Reporting. The RNG producer, RNG importer, or biogas closed 
distribution system RIN generator must submit reports to EPA under 
Sec. Sec.  80.140, 80.1451, and 80.1452, as applicable.
    (d) Recordkeeping. The RNG producer, RNG importer, or biogas closed 
distribution system RIN generator must create and maintain records under 
Sec. Sec.  80.145 and 80.1454.
    (e) PTDs. On each occasion when the RNG producer, RNG importer, or 
biogas closed distribution system RIN generator transfers RNG, renewable 
fuel, or RINs to another party, the transferor must provide to the 
transferee PTDs under Sec. Sec.  80.150 and 80.1453, as applicable.
    (f) Sampling, testing, and measurement. (1) All sampling, testing, 
and measurements must be done in accordance with Sec.  80.155.
    (2)(i) An RNG producer must measure the volume of RNG, in Btu LHV, 
prior to injection of RNG from the RNG production facility into a 
natural gas commercial pipeline system.
    (ii) An RNG producer that trucks RNG from the RNG production 
facility to a pipeline interconnect must measure the volume of RNG, in 
Btu LHV, upon loading and unloading of each truck.
    (iii) An RNG producer that injects RNG from an RNG production 
facility into a natural gas commercial pipeline system must sample and 
test a representative sample of all the following at least once per 
calendar year, as applicable:
    (A) Biogas used to produce RNG.
    (B) RNG before blending with non-renewable components.
    (C) RNG after blending with non-renewable components.
    (iv) A party that upgrades biogas to treated biogas must separately 
measure all the following, as applicable:
    (A) The volume of biogas, in Btu HHV, used to produce treated 
biogas, a biogas-derived renewable fuel, or as a biointermediate.

[[Page 125]]

    (B) The volume of treated biogas, in Btu HHV, prior to addition of 
any non-renewable components.
    (C) The volume of biointermediate or biogas-derived renewable fuel 
produced from the biogas or treated biogas. If the biogas-derived 
renewable fuel is renewable CNG/LNG, then this volume must be measured 
in both Btu HHV and Btu LHV.
    (3) A biogas closed distribution RIN generator must measure 
renewable CNG/LNG in Btu LHV.
    (g) Foreign RNG producer, RNG importer, and foreign biogas closed 
distribution system RIN generator requirements. (1)(i) A foreign RNG 
producer must meet all the requirements that apply to an RNG producer 
under this part, as well as the additional requirements for foreign RNG 
producers specified in Sec.  80.160.
    (ii) A foreign RNG producer must either generate RINs under Sec.  
80.125 or enter into a contract with an RNG importer as specified in 
Sec.  80.160(e).
    (2) An RNG importer must meet all the requirements specified in 
Sec.  80.160(h).
    (3) A foreign biogas closed distribution system RIN generator must 
meet all the requirements that apply to a biogas closed distribution 
system RIN generator under this part, as well as the additional 
requirements for foreign biogas closed distribution system RIN 
generators specified in Sec.  80.160 and for RIN-generating foreign 
renewable fuel producers specified in Sec.  80.1466.
    (h) Attest engagements. The RNG producer, RNG importer, or biogas 
closed distribution system RIN generator must submit annual attest 
engagement reports to EPA under Sec. Sec.  80.165 and 80.1464 using 
procedures specified in 40 CFR 1090.1800 and 1090.1805.
    (i) QAP. Prior to the generation of a Q-RIN for RNG or biogas-
derived renewable fuel, the RNG producer, RNG importer, or biogas closed 
distribution system RIN generator must meet all applicable requirements 
specified in Sec.  80.170.
    (j) Batches. (1) A batch of RNG is the total volume of RNG produced 
at an RNG production facility under a single batch pathway for the 
calendar month, in Btu LHV, as determined under paragraph (j)(4) of this 
section.
    (2) A batch of biogas-derived renewable fuel must comply with the 
requirements specified in Sec.  80.1426(d).
    (3) The RNG producer, RNG importer, or biogas closed distribution 
system RIN generator must assign a number (the ``batch number'') to each 
batch of RNG or biogas-derived renewable fuel consisting of their EPA-
issued company registration number, the EPA-issued facility registration 
number, the last two digits of the calendar year in which the batch was 
produced, and a unique number for the batch, beginning with the number 
one for the first batch produced each calendar year and each subsequent 
batch during the calendar year being assigned the next sequential number 
(e.g., 4321-54321-23-000001, 4321-54321-23-000002, etc.).
    (4) The batch volume of RNG must be calculated as follows:
    [GRAPHIC] [TIFF OMITTED] TR12JY23.006
    
Where:

VRNG,p = The batch volume of RNG for batch pathway p, in Btu 
          LHV.
VNG = The total volume of natural gas produced at the RNG 
          production facility for the calendar month, in Btu LHV, as 
          measured under Sec.  80.155.
VBG,p = The total volume of biogas used to produce RNG under 
          batch pathway p for the calendar month, in Btu HHV, per Sec.  
          80.105(j).
VBG,total = The total volume of biogas used to produce RNG 
          under all batch pathways for the calendar month, in Btu HHV, 
          per Sec.  80.105(j).
R = The renewable fraction of the natural gas produced at the RNG 
          production facility for the calendar month. For natural gas 
          produced only from renewable feedstocks, R is equal to 1. For 
          natural gas produced from both renewable and non-renewable 
          feedstocks, R must be

[[Page 126]]

          measured by a carbon-14 dating test method, per Sec.  
          80.1426(f)(9).



Sec.  80.115  RNG RIN separators.

    (a) General requirements. (1) Any RNG RIN separator must comply with 
the requirements of this section.
    (2) The RNG RIN separator must also comply with all other applicable 
requirements of this part and 40 CFR part 1090.
    (3) If the RNG RIN separator meets the definition of more than one 
type of regulated party under this part or 40 CFR 1090, the RNG RIN 
separator must comply with the requirements applicable to each of those 
types of regulated parties.
    (4) The RNG RIN separator must comply with all applicable 
requirements of this part, regardless of whether the requirements are 
identified in this section.
    (b) Registration. (1) The RNG RIN separator must register with EPA 
under Sec. Sec.  80.135, 80.1450, and 40 CFR part 1090, subpart I, as 
applicable.
    (2) A dispensing location may only be included in one RNG RIN 
separator's registration at a time.
    (c) Reporting. The RNG RIN separator must submit reports to EPA 
under Sec. Sec.  80.140, 80.1451, and 80.1452, as applicable.
    (d) Recordkeeping. The RNG RIN separator must create and maintain 
records under Sec. Sec.  80.145 and 80.1454.
    (e) PTDs. On each occasion when the RNG RIN separator transfers 
title of renewable fuel and RINs to another party, the transferor must 
provide to the transferee PTDs under Sec.  80.1453.
    (f) Measurement. (1) All measurements must be done in accordance 
with Sec.  80.155.
    (2) An RNG RIN separator must measure the volume of natural gas, in 
Btu LHV, withdrawn from the natural gas commercial pipeline system.
    (g) Attest engagements. The RNG RIN separator must submit annual 
attest engagement reports to EPA under Sec. Sec.  80.165 and 80.1464 
using procedures specified in 40 CFR 1090.1800 and 1090.1805.



Sec.  80.120  Parties that use biogas as a biointermediate or RNG as a
feedstock or as process heat or energy.

    (a) General requirements. (1) Any renewable fuel producer that uses 
biogas as a biointermediate or RNG as a feedstock or as process heat or 
energy under Sec.  80.1426(f)(12) or (13) must comply with the 
requirements of this section.
    (2) The renewable fuel producer must also comply with all other 
applicable requirements of this part and 40 CFR part 1090.
    (3) If the renewable fuel producer meets the definition of more than 
one type of regulated party under this part or 40 CFR 1090, the 
renewable fuel producer must comply with the requirements applicable to 
each of those types of regulated parties.
    (4) The renewable fuel producer must comply with all applicable 
requirements of this part, regardless of whether they are identified in 
this section.
    (5) The transfer and batch segregation limits specified in Sec.  
80.1476(g) do not apply.
    (b) Registration. The renewable fuel producer must register with EPA 
under Sec. Sec.  80.135, 80.1450, and 40 CFR part 1090, subpart I, as 
applicable.
    (c) Reporting. The renewable fuel producer must submit reports to 
EPA under Sec. Sec.  80.140, 80.1451, and 80.1452, as applicable.
    (d) Recordkeeping. The renewable fuel producer must create and 
maintain records under Sec. Sec.  80.145 and 80.1454.
    (e) PTDs. On each occasion when the renewable fuel producer 
transfers title of biogas-derived renewable fuel and RINs to another 
party, the transferor must provide to the transferee PTDs under 
Sec. Sec.  80.150 and 80.1453.
    (f) Measurement. (1) All measurements must be done in accordance 
with Sec.  80.155.
    (2) A renewable fuel producer must measure the volume of natural 
gas, in Btu LHV, withdrawn from the natural gas commercial pipeline 
system.
    (g) Attest engagements. The renewable fuel producer must submit 
annual attest engagement reports to EPA under Sec. Sec.  80.165 and 
80.1464 using procedures specified in 40 CFR 1090.1800 and 1090.1805.

[[Page 127]]

    (h) QAP. Prior to the generation of a Q-RIN for biogas-derived 
renewable fuel produced from biogas used as a biointermediate or RNG 
used as a feedstock, the renewable fuel producer must meet all 
applicable requirements specified in Sec.  80.170.



Sec.  80.125  RINs for RNG.

    (a) General requirements. (1) Any party that generates, assigns, 
transfers, receives, separates, or retires RINs for RNG must comply with 
the requirements of this section.
    (2) Any party that transacts RINs for RNG under this section must 
transact the RINs as specified in Sec.  80.1452.
    (b) RIN generation. (1) Only RNG producers may generate RINs for RNG 
injected into a natural gas commercial pipeline system.
    (2) RNG producers must generate RINs for only the biomethane content 
of biogas supplied by a biogas producer registered under Sec.  80.135.
    (3) RNG producers must generate RINs using the applicable 
requirements for RIN generation in Sec.  80.1426.
    (4) If non-renewable components are blended into RNG, the RNG 
producer must generate RINs for only the biomethane content of the RNG 
prior to blending.
    (5) RNG producers must use the measurement procedures specified in 
Sec.  80.155 to determine the heating value of RNG for the generation of 
RINs.
    (6) The number of RINs generated for a batch volume of RNG under 
each batch pathway must be calculated as follows:
[GRAPHIC] [TIFF OMITTED] TR12JY23.007

Where:

RINRNG,p = The number of RINs generated for a batch of RNG 
          under batch pathway p, in gallon-RINs.
VRNG,p = The batch volume of RNG for batch pathway p, in Btu 
          LHV, per Sec.  80.110(j)(4).
EqVRNG = The equivalence value for RNG, in Btu LHV per RIN, 
          per Sec.  80.1415(b)(5).

    (7) When RNG is injected from multiple RNG production facilities at 
a pipeline interconnect, the total number of RINs generated must not be 
greater than the total number of RINs eligible to be generated under 
Sec.  80.1415(b)(5) for the total volume of RNG injected by all RNG 
production facilities at that pipeline interconnect.
    (8) For RNG that is trucked prior to injection into a natural gas 
commercial pipeline system, the total volume of RNG injected for the 
calendar month, in Btu LHV, must not be greater than the lesser of the 
total loading or unloading volume measurement for the month, in Btu LHV, 
as required under Sec.  80.110(f)(2)(ii).
    (9) Renewable fuel producers that retire RINs for RNG used as a 
feedstock under paragraph (e) of this section may only generate RINs for 
the renewable fuel produced from RNG if all applicable requirements 
under this part are met.
    (c) RIN assignment and transfer. (1) RNG producers must assign the 
RINs generated for a batch of RNG to the specific volume of RNG injected 
into the natural gas commercial pipeline system.
    (2) Except as specified in paragraph (c)(1) of this section, no 
party may assign a RIN to a volume of RNG.
    (3) Each party that transfers title of a volume of RNG to another 
party must transfer title of any assigned RINs for the volume of RNG to 
the transferee.
    (d) RIN separation. (1) Only the following parties may separate a 
RIN from RNG:
    (i) The party that withdrew the RNG from the natural gas commercial 
pipeline system.
    (ii) The party that produced or oversaw the production of the 
renewable CNG/LNG from the RNG.
    (iii) The party that used or dispensed for use the renewable CNG/LNG 
as transportation fuel.

[[Page 128]]

    (2) An RNG RIN separator must only separate a RIN from RNG if all 
the following requirements are met:
    (i) The RNG used to produce the renewable CNG/LNG was measured using 
the procedures specified in Sec.  80.155.
    (ii) The RNG RIN separator has the following documentation 
demonstrating that the volume of renewable CNG/LNG was used as 
transportation fuel:
    (A) If the RNG RIN separator sold or used the renewable CNG/LNG, 
records demonstrating the date, location, and volume of renewable CNG/
LNG sold or used as transportation fuel.
    (B) If the RNG RIN separator is relying on documentation from 
another party, all the following as applicable:
    (1) A written contract with the other party for the sale or use of 
the renewable CNG/LNG as transportation fuel.
    (2) Records from the other party demonstrating the date, location, 
and volume of renewable CNG/LNG sold or used as transportation fuel.
    (3) An affidavit from each other party confirming all the following:
    (i) That the volume of renewable CNG/LNG was used as transportation 
fuel and for no other purpose.
    (ii) That the party will not separate RINs for this volume of RNG.
    (iii) That the party has not provided affidavits to any other party 
for the purpose of complying with the requirements of this paragraph 
(d)(2)(ii).
    (iii) The volume of RNG was only used to produce renewable CNG/LNG 
that is used as transportation fuel and for no other purpose.
    (iv) No other party used the measurement information under paragraph 
(d)(2)(i) of this section or the information required under paragraph 
(d)(2)(ii) of this section to separate RINs for the RNG.
    (v) No other party has separated RINs for the RNG using the same 
dispensing location during the calendar month.
    (vi) The RNG RIN separator follows the applicable provisions under 
Sec.  80.1429(a), (b)(10), and (c) through (e).
    (3) An obligated party must not separate RINs for RNG under Sec.  
80.1429(b)(1) unless the obligated party meets the requirements in 
paragraph (d)(1) of this section.
    (4) A party must only separate a number of RINs equal to the total 
volume of RNG (where the Btu LHV are converted to gallon-RINs using the 
conversion specified in Sec.  80.1415(b)(5)) that the party demonstrates 
is used as renewable CNG/LNG under paragraph (d)(2) of this section.
    (e) RIN retirement. (1) A party must retire RINs generated for RNG 
if any of the conditions specified in Sec.  80.1434(a) apply and must 
comply with Sec.  80.1434(b).
    (2)(i) A party must retire all assigned RINs for a volume of RNG if 
the RINs are not separated under paragraph (d) of this section by the 
date the assigned RINs expire under Sec.  80.1428(c).
    (ii) A party must retire any expired RINs under paragraph (e)(2)(i) 
of this section by March 31 of the subsequent year. For example, if an 
RNG producer assigns RINs for RNG in 2025, the RINs expire if they are 
not separated under paragraph (d) of this section by December 31, 2026, 
and must be retired by March 31, 2027.
    (3) A party that uses RNG for a purpose other than to produce 
renewable CNG/LNG (e.g., as a feedstock, as process heat under Sec.  
80.1426(f)(12), or as process energy under Sec.  80.1426(f)(13)) must 
retire any assigned RINs for the volume of RNG within 5 business days of 
such use of the RNG.



Sec.  80.130  RINs for renewable CNG/LNG from a biogas closed distribution
system.

    (a) General requirements. (1) Any party that generates, assigns, 
separates, or retires RINs for renewable CNG/LNG from a biogas closed 
distribution system must comply with the requirements of this section.
    (2) Parties must report all RIN transactions to EMTS as specified in 
Sec.  80.1452.
    (b) RIN generation. (1) Biogas closed distribution system RIN 
generators must generate RINs using the applicable requirements for RIN 
generation in under this part.
    (2) RINs for renewable CNG/LNG from a biogas closed distribution 
system may be generated if all the following requirements are met:
    (i) The renewable CNG/LNG is produced from renewable biomass and

[[Page 129]]

qualifies to generate RINs under an approved pathway.
    (ii) The biogas closed distribution system RIN generator has entered 
into a written contract for the sale or use of a specific quantity of 
renewable CNG/LNG for use as transportation fuel, and has obtained 
affidavits from all parties selling or using the renewable CNG/LNG 
certifying that the renewable CNG/LNG was used as transportation fuel.
    (iii) The renewable CNG/LNG is used as transportation fuel and for 
no other purpose.
    (c) RIN separation. A biogas closed distribution system RIN 
generator must separate RINs generated for renewable CNG/LNG under Sec.  
80.1429(b)(5)(ii).
    (d) RIN retirement. A party must retire RINs generated for renewable 
CNG/LNG from a biogas closed distribution if any of the conditions 
specified in Sec.  80.1434(a) apply and must comply with Sec.  
80.1434(b).



Sec.  80.135  Registration.

    (a) Applicability. The following parties must register using the 
procedures specified in this section, Sec.  80.1450 and 40 CFR 1090.800:
    (1) Biogas producers.
    (2) RNG producers.
    (3) RNG importers.
    (4) Biogas closed distribution system RIN generators.
    (5) RNG RIN separators.
    (6) Renewable fuel producers using biogas as a biointermediate or 
RNG as a feedstock.
    (b) General registration requirements. Parties must submit 
applicable information for companies and facilities as specified in 40 
CFR 1090.805.
    (1) New registrants. (i) Parties required to register under this 
subpart must have an EPA-accepted registration prior to engaging in 
regulated activities under this subpart.
    (ii) Registration information must be submitted at least 60 days 
prior to engaging in regulated activities under this subpart.
    (iii) Parties may engage in regulated activities under this subpart 
once EPA has accepted their registration and they have met all other 
applicable requirements under this subpart.
    (2) Existing renewable CNG/LNG registrations. (i) Parties listed in 
paragraph (a) of this section must submit updated registration 
information that complies with the applicable requirements of this 
section for any company or facility covered by a registration accepted 
under Sec.  80.1450(b) for the generation of RINs under Sec.  
80.1426(f)(10)(ii) or (11)(ii) no later than October 1, 2024.
    (ii) A biogas closed distribution system RIN generator or biogas 
producer does not need to submit an updated engineering review for any 
facility in the biogas closed distribution system as specified in Sec.  
80.1450(d)(1) before the next three-year engineering review update is 
due as specified in Sec.  80.1450(d)(3).
    (3) Engineering reviews. (i) Any party required to register a 
facility under this section must undergo all the following:
    (A) A third-party engineering review as specified in Sec.  
80.1450(b)(2).
    (B) Three-year engineering review updates as specified in Sec.  
80.1450(d)(3).
    (ii) Third-party engineering reviews and three-year engineering 
review updates required under paragraph (b)(3)(i) of this section must 
evaluate all applicable registration information submitted under this 
section as well as all applicable requirements in Sec.  80.1450(b).
    (iii) A party may arrange for an independent third-party engineer to 
conduct a single site visit and submit a single engineering review 
report for a facility that performs multiple activities (e.g., a 
facility that both produces biogas and upgrades it to RNG) under this 
subpart as long as the site visit and engineering review report includes 
all the requirements for each activity performed.
    (4) Registration updates. (i) Parties registered under this section 
must submit updated registration information to EPA within 30 days when 
any of the following occur:
    (A) The registration information previously supplied becomes 
incomplete or inaccurate.
    (B) Facility information is updated under Sec.  80.1450(d)(1), as 
applicable.
    (C) A change of ownership is submitted under 40 CFR 1090.820.
    (ii) Parties registered under this section must submit updated 
registration information to EPA within 7 days when

[[Page 130]]

any facility information is updated under Sec.  80.1450(d)(2).
    (iii) Parties that register a facility under this section must 
update their registration information and undergo a three-year 
engineering review update as specified in Sec.  80.1450(d)(3).
    (5) Registration deactivations. EPA may deactivate the registration 
of a party registered under this section as specified in Sec.  
80.1450(h), 40 CFR 1090.810, or 40 CFR 1090.815, as applicable.
    (c) Biogas producer. In addition to the information required under 
paragraph (b) of this section, a biogas producer must submit all the 
following information for each biogas production facility:
    (1) Information describing the biogas production capacity for the 
biogas production facility, in Btu HHV, including the following:
    (i) Information regarding the permitted capacity in the most recent 
applicable air permits issued by EPA, a state, a local air pollution 
control agency, or a foreign governmental agency that governs the biogas 
production facility, if available.
    (ii) Documents demonstrating the biogas production facility's 
nameplate capacity.
    (iii) Information describing the biogas production facility's biogas 
production for each of the last three calendar years prior to the 
registration submission, if available.
    (2) Whether the biogas will be used to produce RNG, renewable CNG/
LNG, or biointermediate and information identifying the facility that 
will be supplied.
    (3) The following information related to biogas measurement:
    (i) A description of how biogas will be measured under Sec.  
80.155(a), including the specific standards under which the meters are 
operated.
    (ii) A description of the biogas production process, including a 
process flow diagram that includes metering type(s) and location(s).
    (iii) For an alternative measurement protocol under Sec.  
80.155(a)(3), all the following:
    (A) A description of why the biogas producer is unable to use meters 
that comply with the requirements specified in Sec.  80.155(a)(1) and 
(2), as applicable.
    (B) A description of how measurement is conducted.
    (C) Any standards or specifications that apply.
    (D) A description of all routine maintenance and the frequency that 
such maintenance will be conducted.
    (E) A description of the frequency of all measurements and how often 
such measurements will be recorded under the alternative measurement 
protocol.
    (F) A comparison between the accuracy, precision, and reliability of 
the alternative measurement protocol and the requirements specified in 
Sec.  80.155(a)(1) and (2), as applicable, including any supporting 
data.
    (4) For biogas used to produce renewable CNG/LNG in a biogas closed 
distribution system, all the following additional information:
    (i) A process flow diagram of each step of the physical process from 
feedstock entry to the point where the renewable CNG/LNG is dispensed as 
transportation fuel. This includes all the following:
    (A) Feedstock processing.
    (B) Biogas production.
    (C) Biogas processing.
    (D) Renewable CNG/LNG production.
    (E) Points where non-renewable natural gas may be added.
    (F) Dispensing stations.
    (G) Measurement locations and equipment.
    (H) Major equipment (e.g., tanks, pipelines, flares, separation 
equipment, compressors, and dispensing infrastructure).
    (I) Any other process-related information as requested by EPA.
    (ii) A description of losses of heating content going from biogas to 
renewable CNG/LNG and an explanation of how such losses would be 
accounted for.
    (iii) A description of the physical process from biogas production 
to dispensing of renewable CNG/LNG as transportation fuel, including the 
biogas closed distribution system.
    (iv) A description of the vehicle fleet and dispensing stations that 
are expected to use and distribute the renewable CNG/LNG as 
transportation fuel.
    (5) For biogas used as a biointermediate, all the information 
specified in Sec.  80.1450(b)(1)(ii)(B).

[[Page 131]]

    (6) For biogas used to produce RNG, all the following additional 
information:
    (i) The RNG producer that will upgrade the biogas.
    (ii) A process flow diagram of the physical process from biogas 
production to entering the RNG production facility, including major 
equipment (e.g., tanks, pipelines, flares, separation equipment).
    (iii) A description of the physical process from biogas production 
to entering the RNG production facility, including an explanation of how 
the biogas reaches the RNG production facility.
    (7) For biogas produced in an agricultural digester, all the 
following information:
    (i) A separated yard waste plan specified in Sec.  
80.1450(b)(1)(vii)(A), as applicable.
    (ii) Crop residue information specified in Sec.  80.1450(b)(1)(xv), 
as applicable.
    (iii) A process flow diagram of the physical process from feedstock 
entry to biogas production, including major equipment (e.g., feedstock 
preprocessing equipment, tanks, digesters, pipelines, flares).
    (8) For biogas produced in a municipal wastewater treatment facility 
digester, a process flow diagram of the physical process from feedstock 
entry to biogas production, including major equipment (e.g., feedstock 
preprocessing equipment, tanks, digesters, pipelines, flares).
    (9) For biogas produced in a separated MSW digester, all the 
following information:
    (i) Separated MSW plan specified in Sec.  80.1450(b)(1)(viii).
    (ii) A process flow diagram of the physical process from feedstock 
entry to biogas production, including major equipment (e.g., feedstock 
preprocessing equipment, tanks, digesters, pipelines, flares).
    (10) For biogas produced in other waste digesters, all the following 
information, as applicable:
    (i) A separated MSW plan specified in Sec.  80.1450(b)(1)(viii).
    (ii) A separated yard waste plan specified in Sec.  
80.1450(b)(1)(vii)(A).
    (iii) Crop residues information specified in Sec.  
80.1450(b)(1)(xv).
    (iv) A separated food waste plan or biogenic waste oils/fats/greases 
plan specified in Sec.  80.1450(b)(1)(vii)(B).
    (v) A process flow diagram of each step of the physical process from 
feedstock entry to the point where the biogas either leaves the facility 
or is used to produce RNG, biointermediate, or biogas-derived renewable 
fuel. This includes all the following:
    (A) Feedstock processing.
    (B) Biogas production.
    (C) Biogas processing.
    (D) Major equipment (e.g., feedstock preprocessing equipment, tanks, 
digesters, pipelines, flares).
    (E) Measurement locations and equipment.
    (F) Any other process-related information as requested by EPA.
    (vi) For biogas produced in a mixed digester, all the following:
    (A) For biogas producers using a value under Sec.  
80.105(j)(2)(iv)(E), all the following:
    (1) The cellulosic converted fraction (CF) for each cellulosic 
biogas feedstock that will be used in Sec.  80.105(j)(2)(iii), in Btu 
HHV/lb feedstock, rounded to the nearest whole number.
    (2) Data supporting the cellulosic CF from each cellulosic biogas 
feedstock. Data must be derived from processing of cellulosic biogas 
feedstock(s) in anaerobic digesters without simultaneous conversion 
under similar conditions as will be run in the simultaneously converted 
process. Data must be either from the facility when it was processing 
solely the feedstock that does have a minimum 75% adjusted cellulosic 
content or from a representative sample of other representative 
facilities processing the feedstock that does have a minimum 75% 
adjusted cellulosic content.
    (3) A description of how the cellulosic CF was determined, including 
any calculations demonstrating how the data were used.
    (4) A list of ranges of processing conditions, including 
temperature, solids mean residence time, and hydraulic mean residence 
time, for which the cellulosic CF is accurate and a description of how 
such processing conditions will be measured by the facility.

[[Page 132]]

    (5) A demonstration that no biogas generated from non-cellulosic 
biogas feedstocks could be used to generate RINs for a batch of 
renewable fuel with a D code of 3 or 7. EPA may reject this 
demonstration if it is not sufficiently protective.
    (B) A description of the meters used to determine the mass of 
cellulosic biogas feedstock.
    (C) The location of feedstock sampling, additive (e.g., water) 
addition, and mass measurement for use in Sec.  80.105(j)(2)(iii) 
included in the process flow diagram required under paragraph (c)(10)(v) 
of this section.
    (D) For facilities using composite sampling under Sec.  
80.155(c)(3), a composite sampling plan, including all the following:
    (1) A description of when and where the samples will be collected.
    (2) A description of how the samples will be stored prior to 
testing.
    (3) A description of how daily representative samples will be mixed, 
including how the ratio of each sample will be determined.
    (4) A description of how often testing will occur.
    (5) A description of how the plan complies with Sec.  80.155(c)(2).
    (d) RNG producer. In addition to the information required under 
paragraph (b) of this section, an RNG producer must submit all the 
following information for each RNG production facility:
    (1) All applicable information in Sec.  80.1450(b)(1)(ii).
    (2) Information to establish the RNG production capacity for the RNG 
production facility, in Btu LHV, including all the following, as 
applicable:
    (i) Information regarding the permitted capacity in the most recent 
applicable air permits issued by EPA, a state, a local air pollution 
control agency, or a foreign governmental agency that governs the RNG 
production facility, if available.
    (ii) Documents demonstrating the RNG production facility's nameplate 
capacity.
    (iii) Information describing the RNG production facility's RNG 
production for each of the last three calendar years prior to the 
registration submission, if available.
    (3) The following information related to RNG measurement:
    (i) A description of how RNG will be measured under Sec.  80.155(a), 
including the specific standards under which the meters are operated.
    (ii) A description of the RNG production process, including a 
process flow diagram that includes metering type(s) and location(s).
    (iii) For an alternative measurement protocol under Sec.  
80.155(a)(3), all the following:
    (A) A description of why the RNG producer is unable to use meters 
that comply with the requirements specified in Sec.  80.155(a)(1) and 
(2), as applicable.
    (B) A description of how measurement is conducted.
    (C) Any standards or specifications that apply.
    (D) A description of all routine maintenance and the frequency that 
such maintenance will be conducted.
    (E) A description of the frequency of all measurements and how often 
such measurements will be recorded under the alternative measurement 
protocol.
    (F) A comparison between the accuracy, precision, and reliability of 
the alternative measurement protocol and the requirements specified in 
Sec.  80.155(a)(1) and (2), as applicable, including any supporting 
data.
    (4) The natural gas commercial pipeline system name and pipeline 
interconnect location into which the RNG will be injected.
    (5) A description of the natural gas specifications for the natural 
gas commercial pipeline system into which the RNG will be injected, 
including information on all parameters regulated by the pipeline (e.g., 
hydrogen sulfide, total sulfur, carbon dioxide, oxygen, nitrogen, 
heating content, moisture, siloxanes, and any other available data 
related to the gas components).
    (6) For three-year registration updates, information related to RNG 
quality, including all the following:
    (i) A certificate of analysis--including the major and minor gas 
components--from an independent laboratory for a representative sample 
of the biogas produced at the biogas production facility as specified in 
Sec.  80.155(b).

[[Page 133]]

    (ii) A certificate of analysis--including the major and minor gas 
components--from an independent laboratory for a representative sample 
of the RNG prior to addition of non-renewable components as specified in 
Sec.  80.155(b).
    (iii) If the RNG is blended with non-renewable components prior to 
injection into a natural gas commercial pipeline system, a certificate 
of analysis from an independent laboratory for a representative sample 
of the RNG after blending with non-renewable components as specified in 
Sec.  80.155(b).
    (iv) A summary table with the results of the certificates of 
analysis required under paragraphs (d)(6)(i) through (iii) of this 
section and the natural gas specifications required under paragraph 
(d)(5) of this section converted to the same units.
    (v) EPA may approve an RNG producer's request of an alternative 
analysis in lieu of the certificates of analysis and summary table 
required under paragraphs (d)(6)(i) through (iv) of this section if the 
RNG producer demonstrates that the alternative analysis provides 
information that is equivalent to that provided in the certificates of 
analysis and that the RNG will meet all natural gas specifications 
required under paragraph (d)(5) of this section.
    (7) A RIN generation protocol that includes all the following 
information:
    (i) The procedure for allocating RNG injected into the natural gas 
commercial pipeline system to each RNG production facility and each 
biogas production facility, including how discrepancies in meter values 
will be handled.
    (ii) A diagram showing the locations of flow meters, gas analyzers, 
and in-line GC meters used in the allocation procedure.
    (iii) A description of when RINs will be generated (e.g., receipt of 
monthly pipeline statement, etc).
    (8) For an RNG production facility that injects RNG at a pipeline 
interconnect that also has RNG injected from other sources, a 
description of how the RNG producers will allocate RINs to ensure that 
all facilities comply with the requirements specified in Sec.  
80.125(b)(7).
    (9) For a foreign RNG producer, all the following additional 
information:
    (i) The applicable information specified in Sec.  80.160.
    (ii) Whether the foreign RNG producer will generate RINs for their 
RNG.
    (iii) For non-RIN generating foreign RNG producers, the name and 
EPA-issued company and facility IDs of the contracted importer under 
Sec.  80.160(e).
    (e) RNG importer. In addition to the information required under 
paragraph (b) of this section, an RNG importer must submit all the 
following information:
    (1) The name and EPA-issued company and facility IDs of the 
contracted non-RIN generating foreign RNG producer under Sec.  
80.160(e).
    (2) The name and contact information for the independent third party 
specified in Sec.  80.160(h).
    (f) RNG RIN separator. In addition to the information required under 
paragraph (b) of this section, an RNG RIN separator must submit a list 
of locations of any dispensing stations where the RNG RIN separator 
supplies or intends to supply renewable CNG/LNG for use as 
transportation fuel.
    (g) Renewable fuel producer using biogas as a biointermediate. In 
addition to the information required under paragraph (b) of this 
section, a renewable fuel producer using biogas as a biointermediate 
must submit all the following:
    (1) All applicable information in Sec.  80.1450(b).
    (2) Documentation demonstrating a direct connection between the 
biogas production facility and the renewable fuel production facility.



Sec.  80.140  Reporting.

    (a) General provisions--(1) Applicability. Parties must submit 
reports to EPA according to the schedule and containing all applicable 
information specified in this section.
    (2) Forms and procedures for report submission. All reports required 
under this section must be submitted using forms and procedures 
specified by EPA.
    (3) Additional reporting elements. In addition to any applicable 
reporting requirement under this section, parties must submit any 
additional information EPA requires to administer the reporting 
requirements of this section.

[[Page 134]]

    (4) English language reports. All reported information submitted to 
EPA under this section must be submitted in English, or must include an 
English translation.
    (5) Signature of reports. Reports required under this section must 
be signed and certified as meeting all the applicable requirements of 
this subpart by the RCO or their delegate identified in the company 
registration under 40 CFR 1090.805(a)(1)(iv).
    (6) Report submission deadlines. Reports required under this section 
must be submitted by the following deadlines:
    (i) Monthly reports must be submitted by the applicable monthly 
deadline in Sec.  80.1451(f)(4).
    (ii) Quarterly reports must be submitted by the applicable quarterly 
deadline in Sec.  80.1451(f)(2).
    (iii) Annual reports must be submitted by the applicable annual 
deadline in Sec.  80.1451(f)(1).
    (7) Volume standardization. (i) All volumes reported to EPA in scf 
under this section must be standardized to STP.
    (ii) All volumes reported to EPA in Btu under this section must be 
converted according to Sec.  80.155(f), if applicable.
    (iii) All other volumes reported to EPA under this section must be 
standardized according to Sec.  80.1426(f)(8).
    (b) Biogas producers. A biogas producer must submit monthly reports 
to EPA containing all the following information for each batch of 
biogas:
    (1) Batch number.
    (2) Production date (end date of the calendar month).
    (3) Verification status of the batch.
    (4) The batch volume of biogas supplied to the downstream party, in 
Btu HHV and scf, as measured under Sec.  80.155.
    (5) The associated pathway information, including D code, designated 
use of the biogas (e.g., biointermediate, renewable CNG/LNG, or RNG), 
and feedstock information.
    (6) The EPA-issued company and facility IDs for the RNG producer, 
biogas closed distribution system RIN generator, or renewable fuel 
producer that received the batch of the biogas.
    (c) RNG producers. (1) An RNG producer must submit quarterly reports 
to EPA containing all the following information:
    (i) The total volume of RNG, in Btu LHV and scf, produced and 
injected into the natural gas commercial pipeline system as measured 
under Sec.  80.155.
    (ii) The total volume of non-renewable components, in Btu LHV, added 
to RNG prior to injection into the natural gas commercial pipeline 
system.
    (2) A non-RIN generating foreign RNG producer must submit monthly 
reports to EPA containing all the following information for each batch 
of RNG:
    (i) Batch number.
    (ii) Production date (end date of the calendar month).
    (iii) Verification status of the batch.
    (iv) The associated pathway information, including D code, 
production process, and feedstock information.
    (v) The EPA-issued company and facility IDs for the RNG importer 
that will generate RINs for the batch.
    (d) Biogas closed distribution system RIN generators. A biogas 
closed distribution system RIN generator must submit monthly reports to 
EPA containing all the following information:
    (1)(i) For fuels that are gaseous at STP, the type and volume of 
biogas-derived renewable fuel, in Btu LHV.
    (ii) For all other fuels, the type and volume of biogas-derived 
renewable fuel, in gallons.
    (2) Each of the following, as applicable, as measured under Sec.  
80.155:
    (i) The volume of biogas, in Btu HHV, used to produce the treated 
biogas that is used to produce the biogas-derived renewable fuel.
    (ii) The volume of biogas, in Btu HHV, used to produce the biogas-
derived renewable fuel.
    (iii) The volume of treated biogas, in Btu HHV, used to produce the 
biogas-derived renewable fuel.
    (3) The name(s) and location(s) of where the biogas-derived 
renewable fuel is used or sold for use as transportation fuel.
    (4)(i) For fuels that are gaseous at STP, the volume of biogas-
derived renewable fuel, in Btu LHV, used at each location where the 
biogas-derived renewable fuel is used or sold for use as transportation 
fuel.

[[Page 135]]

    (ii) For all other fuels, the volume of biogas-derived renewable 
fuel, in gallons, used at each location where the biogas-derived 
renewable fuel is used or sold for use as transportation fuel.
    (5) All applicable information in Sec.  80.1451(b).
    (e) RNG RIN separators. (1) An RNG RIN separator must submit 
quarterly reports to EPA containing all the following information:
    (i) Name and location of each point where RNG was withdrawn from the 
natural gas commercial pipeline system.
    (ii) Volume of RNG, in Btu LHV, withdrawn from the natural gas 
commercial pipeline system during the reporting period by withdrawal 
location.
    (iii) Volume of renewable CNG/LNG, in Btu LHV, dispensed during the 
reporting period by withdrawal location.
    (2) An RNG RIN separator must submit monthly reports to EPA 
containing all the following information for each batch of biogas:
    (i) The location where renewable CNG/LNG was dispensed as 
transportation fuel.
    (ii) The volume of renewable CNG/LNG, in Btu LHV, dispensed as 
transportation fuel at the location.
    (f) Retirement of RINs for RNG used as a feedstock or process heat. 
A party that retires RINs for RNG used as a feedstock or as process heat 
or energy under Sec.  80.1426(f)(12) or (13) must submit quarterly 
reports to EPA containing all the following information:
    (1) The name(s) and location(s) of the natural gas commercial 
pipeline where the RNG was withdrawn.
    (2) Volume of RNG, in Btu LHV, withdrawn from the natural gas 
commercial pipeline during the reporting period by location.
    (3) The EPA-issued company and facility IDs for the facility that 
used the withdrawn RNG as a feedstock or as process heat.
    (4) For each facility, the following information, as applicable:
    (i) For fuels that are gaseous at STP, the volume of biogas-derived 
renewable fuel, in Btu LHV, produced using the withdrawn RNG.
    (ii) For all other fuels, the volume of biogas-derived renewable 
fuel, in gallons, produced using the withdrawn RNG.
    (5) The number of RINs for RNG retired during the reporting period 
by D code and verification status.

[88 FR 44564, July 12, 2023; 88 FR 51239, Aug. 3, 2023]



Sec.  80.145  Recordkeeping.

    (a) General requirements--(1) Records to be kept. All parties 
subject to the requirements of this subpart must keep the following 
records:
    (i) Compliance report records. Records related to compliance reports 
submitted to EPA under this part as follows:
    (A) Copies of all reports submitted to EPA.
    (B) Copies of any confirmation received from the submission of such 
reports to EPA.
    (C) Copies of all underlying information and documentation used to 
prepare and submit the reports.
    (D) Copies of all calculations required under this subpart.
    (ii) Registration records. Records related to registration under 
this part and 40 CFR part 1090, subpart I, as follows:
    (A) Copies of all registration information and documentation 
submitted to EPA.
    (B) Copies of all underlying information and documentation used to 
prepare and submit the registration request.
    (iii) PTD records. Copies of all PTDs required under this part.
    (iv) Subpart M records. Any applicable record required under 40 CFR 
part 80, subpart M.
    (v) QAP records. Information and documentation related to 
participation in any QAP program, including contracts between the entity 
and the QAP provider, records related to verification activities under 
the QAP, and copies of any QAP-related submissions.
    (vi) Sampling, testing, and measurement records. Documents 
supporting the sampling, storage, testing, and measurement results 
relied upon under Sec.  80.155, including all results, maintenance 
records, and calibration records.
    (vii) Other records. Any other records relied upon by the party to 
demonstrate compliance with this subpart.

[[Page 136]]

    (viii) Potentially invalid RINs. Any records and copies of 
notifications related to potentially inaccurate or non-qualifying biogas 
volumes or potentially invalid RINs under Sec.  80.185.
    (ix) RNG importers and foreign parties. Any records related to RNG 
importers and foreign parties under Sec. Sec.  80.160, 80.1466, and 
80.1467, as applicable.
    (2) Length of time records must be kept. The records required under 
this subpart must be kept for five years from the date they were 
created, except that records related to transactions involving RINs must 
be kept for five years from the date of the RIN transaction.
    (3) Make records available to EPA. Any party required to keep 
records under this section must make records available to EPA upon 
request by EPA. For records that are electronically generated or 
maintained, the party must make available any equipment and software 
necessary to read the records or, upon approval by EPA, convert the 
electronic records to paper documents.
    (4) English language records. Any record requested by EPA under this 
section must be submitted in English, or include an English translation.
    (b) Biogas producers. In addition to the records required under 
paragraph (a) of this section, a biogas producer must keep all the 
following records:
    (1) Copies of all contracts, PTDs, affidavits required under this 
part, and all other commercial documents with any RNG producer, 
biointermediate producer, or renewable fuel producer.
    (2) Documents supporting the volume of biogas, in Btu HHV and scf, 
produced for each batch.
    (3) Documents supporting the composition and cleanup of biogas 
produced for each batch (e.g., meter readings of composition, records of 
adsorbent replacement, records showing equipment operation including 
maintenance and energy usage, and records of component streams separated 
from the biomethane-enriched stream).
    (4) Information and documentation related to participation in any 
QAP program, including contracts between the biogas producer and the QAP 
provider, records related to verification activities under the QAP, and 
copies of any QAP-related submissions.
    (5) Records related to measurement, including types of equipment 
used, metering process, maintenance and calibration records, documents 
supporting adjustments related to error correction, and measurement 
data.
    (6) Documents supporting the use of each process heat source and 
supporting the amount of each source used in the production process for 
each batch.
    (7) All the applicable recordkeeping requirements for digester 
feedstocks under Sec.  80.1454.
    (8) The following information and documents showing that the biogas 
came from renewable biomass:
    (i) For all anaerobic digesters, documentation showing the mass of 
each feedstock type input into the digester for each batch of biogas.
    (ii) For agricultural digesters, a quarterly affidavit signed by the 
RCO or their delegate that only animal manure, crop residue, or 
separated yard waste that had an adjusted cellulosic content of at least 
75% were used to produce biogas during the quarter.
    (iii) For municipal wastewater treatment facility digesters and 
separated MSW digesters, a quarterly affidavit signed by the RCO or 
their delegate that only feedstocks that had an adjusted cellulosic 
content of at least 75% were used to produce biogas during the quarter.
    (iv) For biogas produced from separated yard waste, separated food 
waste, or biogenic waste oils/fats/greases, documents required under 
Sec.  80.1454(j)(1).
    (v) For biogas produced from separated MSW, documents required under 
Sec.  80.1454(j)(2).
    (9) For biogas produced in a mixed digester, all the following:
    (i) Documents for each delivery of feedstock to the biogas 
production facility, demonstrating all the following for each unique 
combination of feedstock supplier and type of feedstock:
    (A) The name of the feedstock supplier.
    (B) The type of feedstock.
    (C) The mass of that feedstock delivered from that supplier.
    (ii) Data, documents, and calculations related to digester operating 
conditions required under Sec.  80.105(f)(2)(iii)(D).

[[Page 137]]

    (iii) Documents for each batch showing how measurement data for 
volatile solids, total solids, and mass were used to calculate batch 
volume under Sec.  80.105(j)(2).
    (iv) Documents showing the amounts of additives (e.g., water), 
timing of additive addition, and location of additive addition for all 
additives added to the feedstock.
    (v) For samples tested for volatile solids and total solids, 
documents showing the time and location that each sample was obtained 
and tested.
    (c) RNG producers. In addition to the records required under 
paragraph (a) of this section, an RNG producer must keep all the 
following records:
    (1) Records related to the generation and assignment of RINs, 
including all the following information:
    (i) Batch volume.
    (ii) Batch number.
    (iii) Production date when RINs were assigned to RNG.
    (iv) Injection point into the natural gas commercial pipeline 
system.
    (v) Volume of biogas, in Btu HHV and scf, respectively, received at 
each RNG production facility.
    (vi) Volume of RNG, in Btu LHV, Btu HHV, and scf, produced at each 
RNG production facility.
    (vii) Pipeline injection statements describing the energy and volume 
of natural gas for each pipeline interconnect.
    (2) Records related to each RIN transaction, separately for each 
transaction, including all the following information:
    (i) A list of the RINs generated, owned, purchased, sold, separated, 
retired, or reinstated.
    (ii) The parties involved in each transaction including the 
transferor, transferee, and any broker or agent.
    (iii) The date of the transfer of the RINs.
    (iv) Additional information related to details of the transaction 
and its terms.
    (3) Documentation recording the transfer and sale of RNG, from the 
point of biogas production to the facility that sells or uses the fuel 
for transportation purposes.
    (4) A copy of the RNG producer's Compliance Certification required 
under Title V of the Clean Air Act.
    (5) Results of any laboratory analysis of chemical composition or 
physical properties.
    (6) Documents supporting the composition of biogas and RNG and 
cleanup of biogas for each batch (e.g., meter readings of composition, 
records of adsorbent replacement, records showing equipment operation 
including maintenance and energy usage, and records of component streams 
separated from the biomethane-enriched stream).
    (7) Documents supporting the use of each process heat source and 
supporting the amount of each source used in the production process for 
each batch.
    (8) Records related to measurement, including types of equipment 
used, metering process, maintenance and calibration records, documents 
supporting adjustments related to error correction, and measurement 
data.
    (9) Information and documentation related to participation in any 
QAP program, including contracts between the RNG producer and the QAP 
provider, records related to verification activities under the QAP, and 
copies of any QAP-related submissions.
    (10) For an RNG production facility that injects RNG at a pipeline 
interconnect that also has RNG injected from other sources, documents 
showing that RINs generated for the facility comply with the 
requirements specified in Sec.  80.125(b)(7).
    (11) Documentation of any waiver provided by the natural gas 
commercial pipeline system for any parameter of the RNG that does not 
meet the natural gas specifications submitted under Sec.  80.135(d)(5).
    (d) Biogas closed distribution system RIN generators. In addition to 
the records required under paragraph (a) of this section, a biogas 
closed distribution system RIN generator must keep all the following 
records:
    (1) Documentation demonstrating that the renewable CNG/LNG was 
produced from renewable biomass and qualifies to generate RINs under an 
approved pathway.
    (2) Copies of any written contract for the sale or use of renewable 
CNG/LNG

[[Page 138]]

as transportation fuel, and copies of any affidavit from a party that 
sold or used the renewable CNG/LNG as transportation fuel.
    (e) RNG RIN separators. In addition to the records required under 
paragraph (a) of this section, an RNG RIN separator must keep all the 
following records:
    (1) Documentation indicating the volume of RNG, in Btu LHV, 
withdrawn from each interconnect of the natural gas commercial pipeline 
system.
    (2) Documentation demonstrating the volume of RNG, in Btu LHV, 
withdrawn from the natural gas commercial pipeline system that was used 
to produce renewable CNG/LNG.
    (3) Documentation indicating the volume of renewable CNG/LNG, in Btu 
LHV, dispensed as transportation fuel from each dispensing location.
    (4) Copies of all documentation required under Sec.  
80.125(d)(2)(ii), as applicable.
    (5) Documentation showing how the number of RINs separated was 
determined using the information specified in paragraphs (e)(1) through 
(4) of this section and the applicable RIN separation reports.
    (f) Renewable fuel producers that use biogas as a biointermediate or 
RNG as a feedstock. In addition to the records required under paragraph 
(a) of this section, a renewable fuel producer that uses biogas as a 
biointermediate or RNG as a feedstock must keep all the following 
records:
    (1) Documentation supporting the volume of renewable fuel produced 
from biogas used as a biointermediate or RNG that was used as a 
feedstock.
    (2) For biogas, all the following additional information:
    (i) For each facility, documentation supporting the volume of 
biogas, in Btu HHV and scf, that was used as a biointermediate.
    (ii) Copies of all applicable contracts over the past 5 years with 
each biointermediate producer.
    (3) For RNG, all the following additional information:
    (i) Documentation supporting the volume of RNG, in Btu LHV, 
withdrawn from the natural gas commercial pipeline system.
    (ii) Documentation supporting the retirement of RINs for RNG used as 
a feedstock (e.g., contracts, purchase orders, invoices).



Sec.  80.150  Product transfer documents.

    (a) General requirements--(1) PTD contents. On each occasion when 
any person transfers title of any biogas or imported RNG without 
assigned RINs, the transferor must provide the transferee PTDs that 
include all the following information:
    (i) The name, EPA-issued company and facility IDs, and address of 
the transferor.
    (ii) The name, EPA-issued company and facility IDs, and address of 
the transferee.
    (iii) The volume (in Btu HHV for biogas or Btu LHV for RNG) of the 
product being transferred by D code and verification status.
    (iv) The location of the product at the time of the transfer.
    (v) The date of the transfer.
    (vi) Period of production.
    (2) Other PTD requirements. A party must also include any applicable 
PTD information required under Sec.  80.1453 or 40 CFR part 1090, 
subpart L.
    (b) Additional PTD requirements for transfers of biogas. In addition 
to the information required in paragraph (a) of this section, on each 
occasion when any person transfers title of biogas, the transferor must 
provide the transferee PTDs that include all the following information:
    (1) An accurate and clear statement of the applicable designation of 
the biogas.
    (2) If the biogas is designated as a biointermediate, any applicable 
requirement specified in Sec.  80.1453(f).
    (3) One of the following statements, as applicable:
    (i) For biogas designated for use to produce renewable CNG/LNG, 
``This volume of biogas is designated and intended for use to produce 
renewable CNG/LNG.''
    (ii) For biogas designated for use to produce RNG, ``This volume of 
biogas is designated and intended for use to produce renewable natural 
gas.''
    (iii) For biogas designated for use as a biointermediate, the 
language found at Sec.  80.1453(f)(1)(vi).

[[Page 139]]

    (iv) For biogas designated for use as process heat or energy under 
Sec.  80.1426(f)(12) or (13), ``This volume of biogas is designated and 
intended for use as process heat or energy.''
    (c) PTD requirements for custodial transfers of RNG. On each 
occasion when custody of RNG is transferred prior to injection into a 
pipeline interconnect (e.g., via truck), the transferor must provide the 
transferee PTDs that include all the following information:
    (1) The applicable information listed in paragraph (a) of this 
section.
    (2) The following statement, ``This volume of RNG is designated and 
intended for transportation use and may not be used for any other 
purpose.''
    (d) PTD requirements for imported RIN-less RNG. On each occasion 
when title of RIN-less RNG is transferred and ultimately imported into 
the covered location, the transferor must provide the transferee PTDs 
that include all the following information:
    (1) The applicable information listed in paragraph (a) of this 
section.
    (2) The following statement, ``This volume of RNG is designated and 
intended for transportation use in the contiguous United States and may 
not be used for any other purpose.''
    (3) The name, EPA-issued company and facility IDs, and address of 
the contracted RNG importer under Sec.  80.160(e).
    (4) The name, EPA-issued company and facility IDs, and address of 
the transferee.



Sec.  80.155  Sampling, testing, and measurement.

    (a) Biogas and RNG continuous measurement. 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:
    (1) In-line GC meters compliant with ASTM D7164 (incorporated by 
reference, see Sec.  80.12), including sections 9.2, 9.3, 9.4, 9.5, 9.7, 
9.8, and 9.11 of ASTM D7164.
    (2) Flow meters compliant with one of the following:
    (i) API MPMS 14.3.1, API MPMS 14.3.2, API MPMS 14.3.3, and API MPMS 
14.3.4 (incorporated by reference, see Sec.  80.12).
    (ii) API MPMS 14.12 (incorporated by reference, see Sec.  80.12).
    (iii) EN 17526 (incorporated by reference, see Sec.  80.12) 
compatible with gas type H.
    (3) EPA may accept an alternative measurement protocol if all the 
following conditions are met:
    (i) The party demonstrates that they are unable to continuously 
measure using meters that comply with the requirements in paragraphs 
(a)(1) and (2) of this section, as applicable.
    (ii) The party demonstrates that the alternative measurement 
protocol is at least as accurate and precise as the methods specified in 
paragraphs (a)(1) and (2) of this section, as applicable.
    (b) Biogas and RNG sampling and testing. Any party required to 
sample and test biogas or RNG under this subpart must do so as follows:
    (1) Collect representative samples of biogas or RNG using API MPMS 
14.1 (incorporated by reference, see Sec.  80.12).
    (2) Perform all the following measurements on each representative 
sample:
    (i) Methane, carbon dioxide, nitrogen, and oxygen using EPA Method 
3C (see Appendix A-2 to 40 CFR part 60).
    (ii) Hydrogen sulfide and total sulfur using ASTM D5504 
(incorporated by reference, see Sec.  80.12).
    (iii) Siloxanes using ASTM D8230 (incorporated by reference, see 
Sec.  80.12).
    (iv) Moisture using ASTM D4888 (incorporated by reference, see Sec.  
80.12).
    (v) Hydrocarbon analysis using EPA Method 18 (see Appendix A-6 to 40 
CFR part 60).
    (vi) Heating value and relative density using ASTM D3588 
(incorporated by reference, see Sec.  80.12).
    (vii) Additional components specified in the natural gas 
specifications submitted under Sec.  80.135(d)(5) or specified by EPA as 
a condition of registration under this part.
    (viii) Carbon-14 analysis using ASTM D6866 (incorporated by 
reference, see Sec.  80.12).

[[Page 140]]

    (c) Digester feedstock. Any party required to test for total solids 
and volatile solids of a digester feedstock under this subpart must do 
so as follows:
    (1) Samples must be tested in accordance with Part G of SM 2540 
(incorporated by reference, see Sec.  80.12).
    (2) Samples must be obtained, stored, and tested in accordance with 
Part A of SM 2540, including Sections 2, 3, and 5 (Sources of Error and 
Variability, Sample Handling and Preservation, and Quality Control).
    (3) Parties must test each daily representative sample under 
paragraphs (c)(1) and (2) of this section unless the party has a 
composite sampling plan submitted to EPA under Sec.  
80.135(c)(10)(vi)(D). Parties with a composite sampling plan must either 
test each daily representative sample or test samples in accordance with 
Part A of SM 2540 and as specified in the facility's composite sampling 
plan.
    (d) Digester operations. Any biogas producer required to measure or 
calculate digester operating conditions under this subpart must 
determine digester operating conditions for each mixed digester that 
meet all the following requirements:
    (1) Digester temperature readings must be recorded no less frequent 
than every 30 minutes and represent the average temperature in the tank.
    (2) Digester hydraulic and solids mean residence times must be 
calculated no less frequent than once a day using measurements of 
inflows, outflows, and tank levels, as applicable.
    (3) Other parameters must be measured and calculated as specified in 
the facility's registration under Sec.  80.135(c)(10)(vi)(A)(4).
    (e) Third parties. Samples required to be obtained under this 
subpart may be collected and analyzed by third parties.
    (f) Unit conversions. 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).
    (g) Liquid measurement and standardization. Any substance that is 
liquid at STP must be measured in gallons and standardized according to 
Sec.  80.1426(f)(8).



Sec.  80.160  RNG importers, foreign biogas producers, and foreign 
RNG producers.

    (a) Applicability. The provisions of this section apply to any RNG 
importer or any foreign party subject to requirements of this subpart 
outside the United States.
    (b) General requirements. Any foreign party must meet all the 
following requirements:
    (1) Letter from RCO. The foreign party must provide a letter signed 
by the RCO that commits the foreign party to the applicable provisions 
specified in paragraphs (b)(4) and (c) of this section as part of their 
registration under Sec.  80.135.
    (2) Bond posting. A foreign party that generates RINs must meet the 
bond requirements of Sec.  80.1466(h).
    (3) Foreign RIN owners. A foreign party that owns RINs must meet the 
requirements of Sec.  80.1467, including any foreign party that 
separates or retires RINs under Sec.  80.125.
    (4) Foreign party commitments. Any foreign party must commit to the 
following provisions as a condition of being registered as a foreign 
party under this subpart:
    (i) Any EPA inspector or auditor must be given full, complete, and 
immediate access to conduct inspections and audits of all facilities 
subject to this subpart.
    (A) Inspections and audits may be either announced in advance by 
EPA, or unannounced.
    (B) Access will be provided to any location where:
    (1) Biogas, RNG, biointermediate, or biogas-derived renewable fuel 
is produced.
    (2) Documents related to the foreign party operations are kept.
    (3) Any product subject to this subpart (e.g., biogas, RNG, 
biointermediates, or biogas-derived renewable fuel) that is stored or 
transported outside the United States between the foreign party's 
facility and the point of importation into the United States, including 
storage tanks, vessels, and pipelines.
    (C) EPA inspectors and auditors may be EPA employees or contractors 
to EPA.

[[Page 141]]

    (D) Any documents requested that are related to matters covered by 
inspections and audits must be provided to an EPA inspector or auditor 
on request.
    (E) Inspections and audits may include review and copying of any 
documents related to the following:
    (1) The volume or properties of any product subject to this subpart 
produced or delivered to a renewable fuel production facility.
    (2) Transfers of title or custody to the any product subject to this 
subpart.
    (3) Work performed and reports prepared by independent third parties 
and by independent auditors under the requirements of this subpart, 
including work papers.
    (4) Records required under Sec.  80.145.
    (5) Any records related to claims made during registration.
    (F) Inspections and audits by EPA may include interviewing 
employees.
    (G) Any employee of the foreign party must be made available for 
interview by the EPA inspector or auditor, on request, within a 
reasonable time period.
    (H) English language translations of any documents must be provided 
to an EPA inspector or auditor, on request, within 10 business days.
    (I) English language interpreters must be provided to accompany EPA 
inspectors and auditors, on request.
    (ii) An agent for service of process located in the District of 
Columbia will be named, and service on this agent constitutes service on 
the foreign party or any employee of the party for any action by EPA or 
otherwise by the United States related to the requirements of this 
subpart.
    (iii) The forum for any civil or criminal enforcement action related 
to the provisions of this subpart for violations of the Clean Air Act or 
regulations promulgated thereunder are governed by the Clean Air Act, 
including the EPA administrative forum where allowed under the Clean Air 
Act.
    (iv) United States substantive and procedural laws apply to any 
civil or criminal enforcement action against the foreign party or any 
employee of the foreign party related to the provisions of this subpart.
    (v) Applying to be an approved foreign party under this subpart, or 
producing or exporting any product subject to this subpart under such 
approval, and all other actions to comply with the requirements of this 
subpart relating to such approval constitute actions or activities 
covered by and within the meaning of the provisions of 28 U.S.C. 
1605(a)(2), but solely with respect to actions instituted against the 
foreign party, its agents and employees in any court or other tribunal 
in the United States for conduct that violates the requirements 
applicable to the foreign party under this subpart, including conduct 
that violates the False Statements Accountability Act of 1996 (18 U.S.C. 
1001) and section 113(c)(2) of the Clean Air Act (42 U.S.C. 7413).
    (vi) The foreign party, or its agents or employees, will not seek to 
detain or to impose civil or criminal remedies against EPA inspectors or 
auditors for actions performed within the scope of EPA employment or 
contract related to the provisions of this subpart.
    (vii) In any case where a product produced at a foreign facility is 
stored or transported by another company between the foreign facility 
and the point of importation to the United States, the foreign party 
must obtain from each such other company a commitment that meets the 
requirements specified in paragraphs (b)(4)(i) through (vi) of this 
section before the product is transported to the United States, and 
these commitments must be included in the foreign party's application to 
be a registered foreign party under this subpart.
    (c) Sovereign immunity. By submitting an application to be a 
registered foreign party under this subpart, or by producing or 
exporting any product subject to this subpart to the United States under 
such registration, the foreign party, and its agents and employees, 
without exception, become subject to the full operation of the 
administrative and judicial enforcement powers and provisions of the 
United States without limitation based on sovereign immunity, with 
respect to actions instituted against the party, its agents and 
employees in any court or other

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tribunal in the United States for conduct that violates the requirements 
applicable to the foreign party under this subpart, including conduct 
that violates the False Statements Accountability Act of 1996 (18 U.S.C. 
1001) and section 113(c)(2) of the Clean Air Act (42 U.S.C. 7413).
    (d) English language reports. Any document submitted to EPA by a 
foreign party must be in English, or must include an English language 
translation.
    (e) Foreign RNG producer contractual relationship. A non-RIN 
generating foreign RNG producer must establish a contractual 
relationship with an RNG importer, prior to the sale of RIN-less RNG.
    (f) Withdrawal or suspension of registration. EPA may withdraw or 
suspend a foreign party's registration where any of the following occur:
    (1) The foreign party fails to meet any requirement of this subpart.
    (2) The foreign government fails to allow EPA inspections or audits 
as provided in paragraph (b)(4)(i) of this section.
    (3) The foreign party asserts a claim of, or a right to claim, 
sovereign immunity in an action to enforce the requirements in this 
subpart.
    (4) The foreign party fails to pay a civil or criminal penalty that 
is not satisfied using the bond required under paragraph (b)(2) of this 
section.
    (g) Additional requirements for applications, reports, and 
certificates. Any application for registration as a foreign party, or 
any report, certification, or other submission required under this 
subpart by the foreign party, must be:
    (1) Submitted using formats and procedures specified by EPA.
    (2) Signed by the RCO of the foreign party's company.
    (3) Contain the following declarations:
    (i) Certification.
    ``I hereby certify:
    That I have actual authority to sign on behalf of and to bind [NAME 
OF FOREIGN PARTY] with regard to all statements contained herein.
    That I am aware that the information contained herein is being 
Certified, or submitted to the United States Environmental Protection 
Agency, under the requirements of 40 CFR part 80, subparts E and M, and 
that the information is material for determining compliance under these 
regulations.
    That I have read and understand the information being Certified or 
submitted, and this information is true, complete, and correct to the 
best of my knowledge and belief after I have taken reasonable and 
appropriate steps to verify the accuracy thereof.''
    (ii) Affirmation.
    ``I affirm that I have read and understand the provisions of 40 CFR 
part 80, subparts E and M, including 40 CFR 80.160, 80.1466, and 80.1467 
apply to [NAME OF FOREIGN PARTY]. Pursuant to Clean Air Act section 
113(c) and 18 U.S.C. 1001, the penalty for furnishing false, incomplete, 
or misleading information in this certification or submission is a fine 
of up to $10,000 U.S., and/or imprisonment for up to five years.''
    (h) Requirements for RNG importers. An RNG importer must meet all 
the following requirements:
    (1) For each imported batch of RNG, the RNG importer must have an 
independent third party that meets the requirements of Sec.  
80.1450(b)(2)(i) and (ii) do all the following:
    (i) Determine the volume of RNG, in Btu LHV, injected into the 
natural gas commercial pipeline system as specified in Sec.  80.155.
    (ii) Determine the name and EPA-assigned company and facility 
identification numbers of the foreign non-RIN generating RNG producer 
that produced the RNG.
    (2) The independent third party must submit reports to the foreign 
non-RIN generating RNG producer and the RNG importer within 30 days 
following the date the RNG was injected into a natural gas commercial 
pipeline system for import into the United States containing all the 
following:
    (i) The statements specified in paragraph (g) of this section.
    (ii) The name of the foreign non-RIN generating RNG producer, 
containing the information specified in paragraph (g) of this section, 
and including the identification of the natural gas commercial pipeline 
system terminal at which the product was offloaded.

[[Page 143]]

    (iii) PTDs showing the volume of RNG, in Btu LHV, transferred from 
the foreign non-RIN generating RNG producer to the RNG importer.
    (3) The RNG importer and the independent third party must keep 
records of the audits and reports required under paragraphs (h)(1) and 
(2) of this section for five years from the date of creation.



Sec.  80.165  Attest engagements.

    (a) General provisions. (1) The following parties must arrange for 
annual attestation engagement using agreed-upon procedures:
    (i) Biogas producers.
    (ii) RNG producers.
    (iii) RNG importers.
    (iv) Biogas closed distribution system RIN generators.
    (v) RNG RIN separators.
    (vi) Renewable fuel producers that use RNG as a feedstock.
    (2) The auditor performing attestation engagements required under 
this subpart must meet the requirements in 40 CFR 1090.1800(b).
    (3) The auditor must perform attestation engagements separately for 
each biogas production facility, RNG production facility, and renewable 
fuel production facility, as applicable.
    (4) Except as otherwise specified in this section, attest auditors 
may use the representative sampling procedures specified in 40 CFR 
1090.1805.
    (5) Except as otherwise specified in this section, attest auditors 
must prepare and submit the annual attestation engagement following the 
procedures specified in 40 CFR 1090.1800(d).
    (b) General procedures for biogas producers. An attest auditor must 
conduct annual attestation audits for biogas producers using the 
following procedures:
    (1) Registration and EPA reports. The auditor must review 
registration and EPA reports as follows:
    (i) Obtain copies of all the following:
    (A) The biogas producer's registration information submitted under 
Sec. Sec.  80.135 and 80.1450.
    (B) All reports submitted under Sec. Sec.  80.140 and 80.1451.
    (ii) For each biogas production facility, confirm that the 
facility's registration is accurate based on the activities reported 
during the compliance period and confirm any related updates were 
completed prior to conducting regulated activities at the facility and 
report as a finding any exceptions.
    (iii)(A) Report the date of the last engineering review conducted 
under Sec. Sec.  80.135(b)(3) and 80.1450(b), as applicable.
    (B) Report as a finding if the last engineering review is outside of 
the schedule specified in Sec.  80.1450(d)(3)(ii).
    (iv) Confirm that the biogas producer submitted all reports required 
under Sec. Sec.  80.140 and 80.1451 for activities performed during the 
compliance period and report as a finding any exceptions.
    (2) Measurement method review. The auditor must review measurement 
methods for each meter as follows:
    (i) Obtain records related to measurement under Sec.  
80.145(a)(1)(vi).
    (ii)(A) Identify and report the name of the method(s) used for 
measuring the volume of biogas, in Btu HHV and scf.
    (B) Report as a finding any method that is not specified in Sec.  
80.155 or the biogas producer's registration.
    (iii)(A) Identify whether maintenance and calibration records were 
kept for each meter and report the last date of calibration.
    (B) Report as a finding if no records were obtained.
    (3) Listing of batches. The auditor must review listings of batches 
as follows:
    (i) Obtain the batch reports submitted under Sec.  80.140.
    (ii) Compare the reported volume for each batch to the measured 
volume and report as a finding any exceptions.
    (4) Testing of biogas transfers. The auditor must review biogas 
transfers as follows:
    (i) Obtain the associated PTD for each batch of biogas produced 
during the compliance period.
    (ii) Using the batch number, confirm that the correct PTD is 
obtained for each batch and compare the volume, in Btu HHV and scf, on 
each batch report to the associated PTD and report as a finding any 
exceptions.
    (iii) Confirm that the PTD associated with each batch contains all 
applicable language requirements under Sec.  80.150 and report as a 
finding any exceptions.

[[Page 144]]

    (c) General procedures for RNG producers and importers. An attest 
auditor must conduct annual attestation audits for RNG producers and 
importers using the following procedures, as applicable:
    (1) Registration and EPA reports. The auditor must review 
registration and EPA reports as follows:
    (i) Obtain copies of all the following:
    (A) The RNG producer or importer's registration information 
submitted under Sec. Sec.  80.135 and 80.1450.
    (B) All reports submitted under Sec. Sec.  80.140 and 80.1451.
    (ii) For each RNG production facility, confirm that the facility's 
registration is accurate based on the activities reported during the 
compliance period and confirm any related updates were completed prior 
to conducting regulated activities at the facility and report as a 
finding any exceptions.
    (iii)(A) Report the date of the last engineering review conducted 
under Sec. Sec.  80.135(b)(3) and 80.1450(b), as applicable.
    (B) Report as a finding if the last engineering review is outside of 
the schedule specified in Sec.  80.1450(d)(3)(ii).
    (iv) Confirm that the RNG producer or importer submitted all reports 
required under Sec. Sec.  80.140 and 80.1451 for activities performed 
during the compliance period and report as a finding any exceptions.
    (2) Feedstock received. The auditor must perform an inventory of 
biogas received as follows:
    (i) Obtain copies of all the following:
    (A) Records documenting the source and volume of biogas, in Btu and 
scf, received by the RNG producer.
    (B) Records showing the volume of biogas used to produce RNG, in Btu 
HHV and scf, and the volume of RNG produced, in Btu HHV and scf.
    (C) Records showing whether non-renewable components were blended 
into RNG.
    (ii) Report the number of parties the RNG producer received biogas 
from and the total volume received separately from each party.
    (iii)(A) Report the total volume of biogas used to produce RNG, in 
Btu HHV and scf, and the total volume of RNG produced, in Btu HHV and 
scf.
    (B) Report as a finding if the volume of RNG produced is greater 
than the volume of biogas used to produce RNG, in Btu HHV.
    (iv) Report as a finding if any RINs were generated for the non-
renewable components of the blended batch.
    (3) Measurement method review. The auditor must review measurement 
methods for each meter as follows:
    (i) Obtain records related to measurement under Sec.  
80.145(a)(1)(vi).
    (ii)(A) Identify and report the name of the method(s) used for 
measuring the volume of RNG, in Btu and in scf.
    (B) Report as a finding any method that is not specified in Sec.  
80.155 or the RNG producer's registration.
    (iii) Identify whether maintenance and calibration records were kept 
and report as a finding if no records were obtained.
    (4) Listing of batches. The auditor must review listings of batches 
as follows:
    (i) Obtain the batch reports submitted under Sec.  80.140.
    (ii) Compare the reported volume for each batch to the measured 
volume and report as a finding any exceptions.
    (iii) Report as a finding any batches with reported values that did 
not meet the natural gas specifications submitted under Sec.  
80.135(d)(5).
    (5) Testing of RNG transfers. The auditor must review RNG transfers 
as follows:
    (i) Obtain the associated PTD for each batch of RNG produced or 
imported during the compliance period.
    (ii) Using the batch number, confirm that the correct PTD is 
obtained for each batch and compare the volume, in Btu and scf, on each 
batch report to the associated PTD and report as a finding any 
exceptions.
    (iii) Confirm that the PTD associated with each batch contains all 
applicable language requirements under Sec.  80.150 and report as a 
finding any exceptions.
    (6) RNG RIN generation. The auditor must perform the following 
procedures for monthly RIN generation:
    (i) Obtain the RIN generation reports submitted under Sec.  80.1451.
    (ii) Compare the number of RINs generated for each batch to the 
batch report and report as a finding any exceptions.

[[Page 145]]

    (iii)(A) Compare the number of RINs generated multiplied by 77,000 
Btu to the amount of RNG injected into the natural gas commercial 
pipeline system.
    (B) Report as a finding if the volume of RNG injected is less than 
the number of RINs generated multiplied by 77,000 Btu.
    (d) General procedures for biogas closed distribution system RIN 
generators. An attest auditor must conduct annual attestation audits for 
biogas closed distribution system RIN generators using the following 
procedures:
    (1) Registration and EPA reports. The auditor must review 
registration and EPA reports as follows:
    (i) Obtain copies of all the following:
    (A) The biogas closed distribution system RIN generator's 
registration information submitted under Sec.  80.135.
    (B) All reports submitted under Sec.  80.140.
    (ii) Confirm that the biogas closed distribution system RIN 
generator's registration is accurate based on the activities reported 
during the compliance period and that any required updates were 
completed prior to conducting regulated activities and report as a 
finding any exceptions.
    (iii) Confirm that the biogas closed distribution system RIN 
generator submitted all reports required under Sec. Sec.  80.140 and 
80.1451 for activities performed during the compliance period and report 
as a finding any exceptions.
    (2) RIN generation. The auditor must complete all applicable 
requirements specified in Sec.  80.1464.
    (e) General procedures for RNG RIN separators. An attest auditor 
must conduct annual attestation audits for RNG RIN separators using the 
following procedures:
    (1) Registration and EPA reports. The auditor must review 
registration and EPA reports as follows:
    (i) Obtain copies of all the following:
    (A) The RNG RIN separator's registration information submitted under 
Sec. Sec.  80.135 and 80.1450.
    (B) All reports submitted under Sec. Sec.  80.140 and 80.1451.
    (ii) Confirm that the RNG RIN separator's registration is accurate 
based on the activities reported during the compliance period and that 
any required updates were completed prior to conducting regulated 
activities and report as a finding any exceptions.
    (iii) Confirm that the RNG RIN separator submitted all reports 
required under Sec. Sec.  80.140 and 80.1451 for activities performed 
during the compliance period and report as a finding any exceptions.
    (2) RIN separation events. The auditor must review records 
supporting RIN separation events as follows:
    (i) Obtain copies of all the following:
    (A) RIN separation reports submitted under Sec. Sec.  80.140(e) and 
80.1452.
    (B) RNG withdrawal records required under Sec.  80.145(e).
    (ii)(A) Compare the volume of RNG, in Btu LHV, withdrawn from the 
natural gas commercial pipeline system to the reported number of 
separated RINs multiplied by 77,000 Btu used to produce the renewable 
CNG/LNG.
    (B) Report as a finding if the volume of RNG, in Btu LHV, is less 
than the number of separated RINs multiplied by 77,000 Btu.
    (iii)(A) Compare the volume of renewable CNG/LNG, in Btu LHV, to the 
reported number of separated RINs multiplied by 77,000 Btu.
    (B) Report as a finding if the volume of renewable CNG/LNG, in Btu 
LHV, is less than the number of separated RINs multiplied by 77,000 Btu.
    (3) RIN owner. The auditor must complete all the requirements 
specified in Sec.  80.1464(c).
    (f) General procedures for renewable fuel producers that use RNG as 
a feedstock. An attest auditor must conduct annual attestation audits 
for renewable fuel producers that use RNG as a feedstock using the 
following procedures:
    (1) Registration and EPA reports. The auditor must review 
registration and EPA reports as follows:
    (i) Obtain copies of all the following:
    (A) The renewable fuel producer's registration information submitted 
under Sec.  80.135.
    (B) All reports submitted under Sec.  80.140.
    (ii) Confirm that the renewable fuel producer's registration is 
accurate based on the activities reported during the compliance period 
and that any required updates were completed prior to

[[Page 146]]

conducting regulated activities and report as a finding any exceptions.
    (iii) Confirm that the renewable fuel producers submitted all 
reports required under Sec. Sec.  80.140 and 80.1451 for activities 
performed during the compliance period and report as a finding any 
exceptions.
    (2) RIN retirements. The attest auditor must review RIN retirements 
as follows:
    (i) Obtain copies of all the following:
    (A) RIN retirement reports submitted under Sec. Sec.  80.140(f) and 
80.1452.
    (B) Records related to measurement under Sec.  80.145(a)(1)(vi).
    (ii) Compare the measured volume of RNG used as a feedstock to the 
reported number of RINs retired for RNG.
    (iii) Report as a finding if the measured volume of RNG used as a 
feedstock does not match the number of RINs retired for RNG.



Sec.  80.170  Quality assurance plan.

    (a) General requirements. This section specifies the requirements 
for QAPs related to the verification of RINs generated for RNG and 
biogas-derived renewable fuel.
    (1) For the generation of Q-RINs for RNG or biogas-derived renewable 
fuel, the same independent third-party auditor must verify each party as 
follows:
    (i) For RNG, all the RNG production facilities that inject into the 
same pipeline interconnect and all the biogas production facilities that 
provide feedstock to those RNG production facilities.
    (ii) For renewable CNG/LNG produced from RNG, the biogas producer 
and the RNG producer.
    (iii) For renewable CNG/LNG produced from biogas in a biogas closed 
distribution system, the biogas producer, the biogas closed distribution 
system RIN generator, and any party deemed necessary by EPA to ensure 
that the renewable CNG/LNG was used as transportation fuel.
    (iv) For biogas-derived renewable fuel produced from biogas used as 
a biointermediate, the biogas producer, the producer of the biogas-
derived renewable fuel, and any other party deemed necessary by EPA to 
ensure that the biogas-derived renewable fuel was produced under an 
approved pathway and used as transportation fuel.
    (v) For biogas-derived renewable fuel produced from RNG used as a 
feedstock, the producer of the biogas-derived renewable fuel and any 
other party deemed necessary by EPA to ensure that the biogas-derived 
renewable fuel was produced under an approved pathway and used as 
transportation fuel.
    (2) Independent third-party auditors that verify RINs generated 
under this subpart must meet the requirements in Sec.  80.1471(a) 
through (c), (g), and (h).
    (3)(i) QAPs approved by EPA to verify RINs generated under this 
subpart must meet the applicable requirements in Sec.  80.1469.
    (ii) EPA may revoke or void a QAP as specified in Sec.  
80.1469(e)(4) or (5).
    (4) Independent third-party auditors must conduct quality assurance 
audits at biogas production facilities, RNG production facilities, 
renewable fuel production facilities, and any facility or location 
deemed necessary by EPA to ensure that the biogas-derived renewable fuel 
was produced under an approved pathway and used as transportation fuel, 
heating oil, or jet fuel as specified in Sec.  80.1472.
    (5) Independent third-party auditors must ensure that mass and 
energy balances performed under Sec.  80.1469(c)(2) are consistent 
between facilities that are audited as part of the same chain.
    (b) Requirements for biogas production facilities. In addition to 
the applicable elements verified under Sec.  80.1469, the independent 
third-party auditor must do all the following for each biogas production 
facility:
    (1) Verify that the biogas was measured as required under Sec.  
80.155.
    (2) Verify that the PTDs for biogas transfers meet the applicable 
PTD requirements in Sec. Sec.  80.150 and 80.1453.
    (c) Requirements for RNG production facilities. In addition to the 
applicable elements verified under Sec.  80.1469, the independent third-
party auditor must do all the following for each RNG production 
facility:
    (1) Verify that the RNG was sampled, tested, and measured as 
required under Sec.  80.155.
    (2) Verify that RINs were assigned, separated, and retired as 
required

[[Page 147]]

under Sec.  80.125(c), (d), and (e), respectively.
    (3) Verify that the RNG was injected into a natural gas commercial 
pipeline system.
    (4) Verify that RINs were not generated on non-renewable components 
added to RNG prior to injection into a natural gas commercial pipeline 
system.
    (d) Requirements for renewable fuel production facilities using 
biogas as a biointermediate. The independent third-party auditor must 
meet all the requirements specified in paragraph (b) of this section and 
Sec.  80.1477 for each renewable fuel production facility using biogas 
as a biointermediate.
    (e) Responsibility for replacement of invalid verified RINs. The 
generator of RINs for RNG or a biogas-derived renewable fuel, and the 
obligated party that owns the Q-RINs, are required to replace invalidly 
generated Q-RINs with valid RINs as specified in Sec.  80.1431(b).



Sec.  80.175  Prohibited acts and liability provisions.

    (a) Prohibited acts. (1) It is a prohibited act for any person to 
act in violation of this subpart or fail to meet a requirement that 
applies to that person under this subpart.
    (2) No person may cause another person to commit an act in violation 
of this subpart.
    (b) Liability provisions--(1) General. (i) Any person who commits 
any prohibited act or requirement in this subpart is liable for the 
violation.
    (ii) Any person who causes another person to commit a prohibited act 
under this subpart is liable for that violation.
    (iii) Any parent corporation is liable for any violation committed 
by any of its wholly-owned subsidiaries.
    (iv) Each partner to a joint venture, or each owner of a facility 
owned by two or more owners, is jointly and severally liable for any 
violation of this subpart that occurs at the joint venture facility or 
facility owned by the joint owners, or any violation of this subpart 
that is committed by the joint venture operation or any of the joint 
owners of the facility.
    (v) Any person listed in paragraphs (b)(2) through (4) of this 
section is liable for any violation of a prohibition specified in 
paragraph (a) of this section or failure to meet a requirement of any 
provision of this subpart regardless of whether the person violated or 
caused the violation unless the person establishes an affirmative 
defense under Sec.  80.180.
    (vi) The liability provisions of Sec.  80.1461 also apply to any 
person subject to the provisions of this subpart.
    (2) Biogas liability. When biogas is found in violation of a 
prohibition specified in paragraph (a) of this section or Sec.  80.1460, 
the following persons are deemed in violation:
    (i) The biogas producer that produced the biogas.
    (ii) Any RNG producer that used the biogas to produce RNG.
    (iii) Any biointermediate producer that used the biogas to produce a 
biointermediate.
    (iv) Any person that used the biogas, RNG produced from the biogas, 
or biointermediate produced from the biogas to produce a biogas-derived 
renewable fuel.
    (v) Any person that generated a RIN from a biogas-derived renewable 
fuel produced from the biogas, RNG produced from the biogas, or 
biointermediate produced from the biogas.
    (vi) Any person that used the biogas or RNG produced from the biogas 
as process heat or energy under Sec.  80.1426(f)(12) or (13).
    (3) RNG liability. When RNG is found in violation of a prohibition 
specified in paragraph (a) of this section or Sec.  80.1460, the 
following persons are deemed in violation:
    (i) The biogas producer that produced the biogas used to produce the 
RNG.
    (ii) The RNG producer that produced the RNG.
    (iii) Any person that used the RNG as a feedstock.
    (iv) Any person that used the RNG as process heat or energy under 
Sec.  80.1426(f)(12) or (13).
    (v) Any person that generated a RIN from a biogas-derived renewable 
fuel produced from the RNG or biointermediate produced from the RNG.

[[Page 148]]

    (4) Third-party liability. Any party allowed under this subpart to 
act on behalf of a regulated party and does so to demonstrate compliance 
with the requirements of this subpart must meet those requirements in 
the same way that the regulated party must meet those requirements. The 
regulated party and the third party are both liable for any violations 
arising from the third party's failure to meet the requirements of this 
subpart.



Sec.  80.180  Affirmative defense provisions.

    (a) Applicability. A person may establish an affirmative defense to 
a violation that person is liable for under Sec.  80.175(b) if that 
person satisfies all applicable elements of an affirmative defense in 
this section.
    (1) No person that generates a RIN for biogas-derived renewable fuel 
may establish an affirmative defense under this section.
    (2) A person that is a biogas producer may not establish an 
affirmative defense under this section for a violation that the biogas 
producer is liable for under Sec.  80.175(b)(1) and (2).
    (3) A person that is an RNG producer may not establish an 
affirmative defense under this section for a violation that the RNG 
producer is liable for under Sec.  80.175(b)(1) and (3).
    (b) General elements. A person may only establish an affirmative 
defense under this section if the person meets all the following 
requirements:
    (1) The person, or any of the person's employees or agents, did not 
cause the violation.
    (2) The person did not know or have reason to know that the biogas, 
treated biogas, RNG, biogas-derived renewable fuel, or RIN was in 
violation of a prohibition or requirement under this subpart.
    (3) The person must have had no financial interest in the company 
that caused the violation.
    (4) If the person self-identified the violation, the person notified 
EPA within five business days of discovering the violation.
    (5) The person must submit a written report to the EPA including all 
pertinent supporting documentation, demonstrating that the applicable 
elements of this section were met within 30 days of the person 
discovering the invalidity.
    (c) Biogas producer elements. In addition to the elements specified 
in paragraph (b) of this section, a biogas producer must also meet all 
the following requirements to establish an affirmative defense:
    (1) The biogas producer conducted or arranged to be conducted a 
quality assurance program that includes, at a minimum, a periodic 
sampling, testing, and measurement program adequately designed to ensure 
their biogas meets the applicable requirements to produce biogas under 
this part.
    (2) The biogas producer had all affected biogas verified by a third-
party auditor under an approved QAP under Sec. Sec.  80.170 and 80.1469.
    (3) The PTDs for the biogas indicate that the biogas was in 
compliance with the applicable requirements while in the biogas 
producer's control.
    (d) RNG producer elements. In addition to the elements specified in 
paragraph (b) of this section, an RNG producer must also meet all the 
following requirements to establish an affirmative defense:
    (1) The RNG producer conducted or arranged to be conducted a quality 
assurance program that includes, at a minimum, a periodic sampling, 
testing, and measurement program adequately designed to ensure that the 
biogas used to produce their RNG meets the applicable requirements to 
produce biogas under this part and that their RNG meets the applicable 
requirements to produce RNG under this part.
    (2) The RNG producer had all affected biogas and RNG verified by a 
third-party auditor under an approved QAP under Sec. Sec.  80.170 and 
80.1469.
    (3) The PTDs for the biogas used to produce their RNG and for their 
RNG indicate that the biogas and RNG were in compliance with the 
applicable requirements while in the RNG producer's control.



Sec.  80.185  Potentially invalid RINs.

    (a) Identification and treatment of potentially invalid RINs (PIRs). 
(1) Any RIN can be identified as a PIR by the biogas producer, the RIN 
generator,

[[Page 149]]

the independent third-party auditor that verified the RIN, or EPA.
    (2) Any party listed in paragraph (a)(1) of this section must use 
the procedures specified in Sec.  80.1474(b) for identification and 
treatment of PIRs and retire any PIRs under Sec.  80.1434(a).
    (b) Potentially inaccurate or non-qualifying volumes of biogas-
derived renewable fuel. (1) Any party that becomes aware of a volume of 
biogas-derived renewable fuel that does not meet the applicable 
requirements for such fuel under this part must notify the next party in 
the production chain within 5 business days.
    (i) Biointermediate producers must notify the renewable fuel 
producer receiving the biointermediate within 5 business days.
    (ii) If the volume of biogas-derived renewable fuel was audited 
under Sec.  80.170, the party must notify the independent third-party 
auditor within 5 business days.
    (iii) Non-RIN generating foreign RNG producers must comply with the 
requirements of this section and notify the importer generating RINs and 
other parties in the production chain, as applicable.
    (iv) Each notified party must notify EPA within 5 business days.
    (2) Any party that is notified of a volume of biogas-derived 
renewable fuel that does not meet the applicable requirements for such 
fuel under this part must correct affected volumes of biogas-derived 
renewable fuel under paragraph (a)(2) of this section, as applicable.
    (c) Potential double counting. (1)(i) When any party becomes aware 
of any of the following, they must notify EPA and the RIN generator, if 
known, within 5 business days of initial discovery:
    (A) More than one RIN being generated for renewable fuel produced 
from the same volume of biogas, treated biogas, or RNG.
    (B) More than one RIN being generated for the same volume of biogas-
derived renewable fuel or RNG.
    (C) A party taking credit for biogas, treated biogas, or RNG under a 
non-transportation program (e.g., a stationary-source renewable 
electricity program) and also generating RINs for renewable fuel 
produced from that same volume of biogas, treated biogas, or RNG.
    (D) A party taking credit for biogas-derived renewable fuel or RNG 
under a non-transportation program (e.g., a stationary-source renewable 
electricity program) and also generating RINs for that same volume of 
biogas-derived renewable fuel or RNG.
    (E) A party taking credit for biogas, treated biogas, or RNG used 
outside the covered location and also generating RINs for renewable fuel 
produced from that same volume of biogas, treated biogas, or RNG.
    (F) A party taking credit for biogas-derived renewable fuel or RNG 
used outside the covered location and also generating RINs for that same 
volume of biogas-derived renewable fuel or RNG.
    (ii) When any party becomes aware of another party separating or 
retiring a RIN from the same volume of RNG, they must notify EPA and the 
RIN generator, if known, within 5 business days of initial discovery.
    (2) EPA will notify the RIN generator of the potential double 
counting if the party that identified the potential double counting does 
not know the party that generated the potentially affected RINs.
    (3) Upon notification, the RIN generator must then calculate any 
impacts to the number of RINs generated for the volume of impacted RNG 
or renewable fuel. The RIN generator must then notify EPA and the 
independent third-party auditor, if any, of the impacted RINs within 5 
business days of initial notification.
    (4) For any number of RINs over-generated due to the double counting 
of volumes of biogas or RNG, the RIN generator must follow the 
applicable procedures for invalid RINs specified in Sec.  80.1431.
    (d) Failure to take corrective action. Any person who fails to meet 
a requirement under paragraph (b) or (c) of this section is liable for 
full performance of such requirement, and each day of non-compliance is 
deemed a separate violation pursuant to Sec.  80.1460(f). The 
administrative process for replacement of invalid RINs does not, in any 
way, limit the ability of the United States to exercise any other 
authority to bring an

[[Page 150]]

enforcement action under section 211 of the Clean Air Act, the fuels 
regulations under this part, 40 CFR part 1090, or any other applicable 
law.
    (e) Replacing PIRs or invalid RINs. The following specifications 
apply when retiring valid RINs to replace PIRs or invalid RINs:
    (1) When a RIN is retired to replace a PIR or invalid RIN, the D 
code of the retired RIN must be eligible to be used towards meeting all 
the renewable volume obligations as the PIR or invalid RIN it is 
replacing, as specified in Sec.  80.1427(a)(2).
    (2) The number of RINs retired must be equal to the number of PIRs 
or invalid RINs being replaced.
    (f) Forms and procedures. (1) All parties that retire RINs under 
this section must use forms and procedures specified by EPA.
    (2) All parties that must notify EPA under this section must submit 
those notifications to EPA as specified in 40 CFR 1090.10.

Subparts F-L [Reserved]



                    Subpart M_Renewable Fuel Standard

    Source: 75 FR 14863, Mar. 26, 2010, unless otherwise noted.



Sec.  80.1400  Applicability.

    The provisions of this Subpart M shall apply for all renewable fuel 
produced on or after July 1, 2010, for all RINs generated on or after 
July 1, 2010, and for all renewable volume obligations and compliance 
periods starting with January 1, 2010.

[75 FR 14863, Mar. 26, 2010, as amended at 85 FR 78467, Dec. 4, 2020]



Sec.  80.1401  Definitions.

    The definitions of Sec.  80.2 apply for the purposes of this subpart 
M.

[88 FR 44580, July 12, 2023]



Sec.  80.1402  Availability of information; confidentiality of information.

    (a) Beginning January 1, 2020, no claim of business confidentiality 
may be asserted by any person with respect to information submitted to 
EPA under Sec.  80.1451(c)(2)(ii)(E), whether submitted electronically 
or in paper format.
    (b) The following information contained in EPA determinations that 
RINs are invalid under Sec.  80.1474(b)(4)(i)(C)(2) and 
(b)(4)(ii)(C)(2), notices of violation, settlement agreements, 
administrative complaints, civil complaints, criminal information, and 
criminal indictments arising under this subpart is not entitled to 
confidential treatment and the provisions of 40 CFR 2.201 through 2.215 
and 2.301 do not apply:
    (1) The company name.
    (2) The name and location of the facility at which the fuel 
associated with the RINs in question was allegedly produced or imported.
    (3) The EPA-issued company or facility identification number of the 
party that produced the fuel or generated the RINs in question.
    (4) The total quantity of fuel and RINs in question.
    (5) The time period when the fuel was allegedly produced.
    (6) The time period when the RINs in question were generated.
    (7) The batch number(s) and the D code(s) of the RINs in question.
    (8) Information relating to the generation, transfer, or use of 
RINs.
    (9) The shortfall in RINs related to an obligated party's failure to 
meet its renewable volume obligation.
    (10) Any other information relevant to describing the violation.
    (c) The following information contained in submissions under this 
subpart is not entitled to confidential treatment and the provisions of 
40 CFR 2.201 through 2.215 and 2.301 do not apply:
    (1) Submitter's name.
    (2) The name and location of the facility, if applicable.
    (3) The date the submission was transmitted to EPA.
    (4) Any EPA-issued company or facility identification numbers 
associated with the submission.
    (5) The purpose of the submission.
    (6) The relevant time period for the submission, if applicable.
    (d) The following information incorporated into EPA determinations 
on submissions under this subpart is not entitled to confidential 
treatment and

[[Page 151]]

the provisions of 40 CFR 2.201 through 2.215 and 2.301 do not apply:
    (1) Submitter's name.
    (2) The name and location of the facility, if applicable.
    (3) The date the submission was transmitted to EPA.
    (4) Any EPA-issued company or facility identification numbers 
associated with the submission.
    (5) The purpose of the submission.
    (6) The relevant time period of the submission, if applicable.
    (7) The extent to which EPA granted or denied the request and any 
relevant terms and conditions.
    (e) Except as otherwise specified in this section, any information 
submitted under this part claimed as confidential remains subject to 
evaluation by EPA under 40 CFR part 2, subpart B.
    (f) EPA may disclose the information specified in paragraphs (a) 
through (d) of this section on its website, or otherwise make it 
available to interested parties, without additional notice or process, 
regardless of any claims that the information is entitled to 
confidential treatment under 40 CFR part 2, subpart B.

[87 FR 39661, July 1, 2022, as amended at 88 FR 44580, July 12, 2023]



Sec.  80.1403  Which fuels are not subject to the 20% GHG thresholds?

    (a) For purposes of this section, the following definitions apply:
    (1) Commence construction, as applied to facilities that produce 
renewable fuel, means that:
    (i) The owner or operator has all necessary preconstruction 
approvals or permits (as defined at 40 CFR 52.21(b)(10)), and has 
satisfied either of the following:
    (A) Begun, or caused to begin, a continuous program of actual 
construction on-site (as defined in 40 CFR 52.21(b)(11)).
    (B) Entered into binding agreements or contractual obligations, 
which cannot be cancelled or modified without substantial loss to the 
owner or operator, to undertake a program of actual construction of the 
facility.
    (ii) For multi-phased projects, the commencement of construction of 
one phase does not constitute commencement of construction of any later 
phase, unless each phase is mutually dependent for physical and chemical 
reasons only.
    (2) [Reserved]
    (b) The lifecycle greenhouse gas emissions from renewable fuels must 
be at least 20 percent less than baseline lifecycle greenhouse gas 
emissions, with the exception of the baseline volumes of renewable fuel 
produced from facilities described in paragraphs (c) and (d) of this 
section.
    (c) The baseline volume of renewable fuel that is produced from 
facilities and any expansions, all of which commenced construction on or 
before December 19, 2007, shall not be subject to the requirement that 
lifecycle greenhouse gas emissions be at least 20 percent less than 
baseline lifecycle greenhouse gas emissions if the owner or operator:
    (1) Did not discontinue construction for a period of 18 months after 
commencement of construction; and
    (2) Completed construction by December 19, 2010.
    (d) The baseline volume of ethanol that is produced from facilities 
and any expansions all of which commenced construction after December 
19, 2007 and on or before December 31, 2009, shall not be subject to the 
requirement that lifecycle greenhouse gas emissions be at least 20 
percent less than baseline lifecycle greenhouse gas emissions if such 
facilities are fired with natural gas, biomass, or a combination thereof 
at all times the facility operated between December 19, 2007 and 
December 31, 2009 and if:
    (1) The owner or operator did not discontinue construction for a 
period of 18 months after commencement of construction;
    (2) The owner or operator completed construction within 36 months of 
commencement of construction; and
    (3) The baseline volume continues to be produced through processes 
fired with natural gas, biomass, or any combination thereof.
    (e) The annual volume of renewable fuel during a calendar year from 
facilities described in paragraphs (c) and (d) of this section that 
exceeds the baseline volume shall be subject to the requirement that 
lifecycle greenhouse gas emissions be at least 20 percent less

[[Page 152]]

than baseline lifecycle greenhouse gas emissions.
    (f) If there are any changes in the mix of renewable fuels produced 
by those facilities described in paragraph (d) of this section, only the 
ethanol volume (to the extent it is less than or equal to baseline 
volume) will not be subject to the requirement that lifecycle greenhouse 
gas emissions be at least 20 percent less than baseline lifecycle 
greenhouse gas emissions. Any party that changes the fuel mix must 
update their registration as specified in Sec.  80.1450(d).

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26036, May 10, 2010; 75 
FR 37733, June 30, 2010; 75 FR 79976, Dec. 21, 2010]



Sec.  80.1404  [Reserved]



Sec.  80.1405  What are the Renewable Fuel Standards?

    (a) The values of the renewable fuel standards are as follows:

                            Table 1 to Paragraph (a)--Annual Renewable Fuel Standards
----------------------------------------------------------------------------------------------------------------
                                                                                                   Supplemental
                                    Cellulosic     Biomass-based     Advanced     Renewable fuel       total
              Year                    biofuel         diesel          biofuel      standard (%)   renewable fuel
                                   standard (%)    standard (%)    standard (%)                    standard (%)
----------------------------------------------------------------------------------------------------------------
2010............................           0.004            1.10            0.61            8.25             n/a
2011............................             n/a            0.69            0.78            8.01             n/a
2012............................             n/a            0.91            1.21            9.23             n/a
2013............................          0.0005            1.13            1.62            9.74             n/a
2014............................           0.019            1.41            1.51            9.19             n/a
2015............................           0.069            1.49            1.62            9.52             n/a
2016............................           0.128            1.59            2.01           10.10             n/a
2017............................           0.173            1.67            2.38           10.70             n/a
2018............................           0.159            1.74            2.37           10.67             n/a
2019............................           0.230            1.73            2.71           10.97             n/a
2020............................            0.32            2.30            2.93           10.82             n/a
2021............................            0.33            2.16            3.00           11.19             n/a
2022............................            0.35            2.33            3.16           11.59            0.14
2023............................            0.48            2.58            3.39           11.96            0.14
2024............................            0.63            2.82            3.79           12.50             n/a
2025............................            0.81            3.15            4.31           13.13             n/a
----------------------------------------------------------------------------------------------------------------

    (b) EPA will calculate the value of the annual standards and publish 
these values in the Federal Register by November 30 of the year 
preceding the compliance period.
    (c) EPA will calculate the annual renewable fuel percentage 
standards using the following equations:
[GRAPHIC] [TIFF OMITTED] TR12JY23.008

[GRAPHIC] [TIFF OMITTED] TR12JY23.009

[GRAPHIC] [TIFF OMITTED] TR12JY23.010

[GRAPHIC] [TIFF OMITTED] TR12JY23.011

Where:

StdCB,i = The cellulosic biofuel standard for year i, in 
          percent.
StdBBD,i = The biomass-based diesel standard for year i, in 
          percent.

[[Page 153]]

StdAB,i = The advanced biofuel standard for year i, in 
          percent.
StdRF,i = The renewable fuel standard for year i, in percent.
RFVCB,i = Annual volume of cellulosic biofuel required by 42 
          U.S.C. 7545(o)(2)(B) for year i, or volume as adjusted 
          pursuant to 42 U.S.C. 7545(o)(7)(D), in gallons.
RFVBBD,i = Annual volume of biomass-based diesel required by 
          42 U.S.C. 7545 (o)(2)(B) for year i, in gallons.
RFVAB,i = Annual volume of advanced biofuel required by 42 
          U.S.C. 7545(o)(2)(B) for year i, in gallons.
RFVRF,i = Annual volume of renewable fuel required by 42 
          U.S.C. 7545(o)(2)(B) for year i, in gallons.
Gi = Amount of gasoline projected to be used in the covered 
          location, in year i, in gallons.
Di = Amount of diesel projected to be used in the covered 
          location, in year i, in gallons.
RGi = Amount of renewable fuel blended into gasoline that is 
          projected to be consumed in the covered location, in year i, 
          in gallons.
RDi = Amount of renewable fuel blended into diesel that is 
          projected to be consumed in the covered location, in year i, 
          in gallons.
GSi = Amount of gasoline projected to be used in Alaska or a 
          U.S. territory, in year i, if the state or territory has 
          opted-in or opts-in, in gallons.
RGSi = Amount of renewable fuel blended into gasoline that is 
          projected to be consumed in Alaska or a U.S. territory, in 
          year i, if the state or territory opts-in, in gallons.
DSi = Amount of diesel projected to be used in Alaska or a 
          U.S. territory, in year i, if the state or territory has 
          opted-in or opts-in, in gallons.
RDSi = Amount of renewable fuel blended into diesel that is 
          projected to be consumed in Alaska or a U.S. territory, in 
          year i, if the state or territory opts-in, in gallons.
GEi = The total amount of gasoline projected to be exempt in 
          year i, in gallons, per Sec. Sec.  80.1441 and 80.1442.
DEi = The total amount of diesel fuel projected to be exempt 
          in year i, in gallons, per Sec. Sec.  80.1441 and 80.1442.

    (d) The price for cellulosic biofuel waiver credits will be 
calculated in accordance with Sec.  80.1456(d) and published on EPA's 
Web site.

[77 FR 1354, Jan. 9, 2012, as amended at 78 FR 49830, Aug. 15, 2013; 79 
FR 25031, May 2, 2014; 80 FR 18140, Apr. 3, 2015; 80 FR 77517, Dec. 14, 
2015; 81 FR 89804, Dec. 12, 2016; 82 FR 58527, Dec. 12, 2017; 83 FR 
63744, Dec. 11, 2018; 85 FR 7074, Feb. 6, 2020; 87 FR 39661, July 1, 
2022; 88 FR 44580, July 12, 2023]



Sec.  80.1406  Obligated party responsibilities.

    (a) [Reserved]
    (b) For each compliance period starting with 2010, an obligated 
party is required to demonstrate, pursuant to Sec.  80.1427, that it has 
satisfied the Renewable Volume Obligations for that compliance period, 
as specified in Sec.  80.1407(a).
    (c) Aggregation of facilities--(1) Except as provided in paragraphs 
(c)(2), (d) and (e) of this section, an obligated party may comply with 
the requirements of paragraph (b) of this section in the aggregate for 
all of the refineries that it operates, or for each refinery 
individually.
    (2) An obligated party that carries a deficit into year i + 1 must 
use the same approach to aggregation of facilities in year i + 1 as it 
did in year i.
    (d) An obligated party must comply with the requirements of 
paragraph (b) of this section for all of its imported gasoline or diesel 
fuel in the aggregate.
    (e) An obligated party that is both a refiner and importer must 
comply with the requirements of paragraph (b) of this section for its 
imported gasoline or diesel fuel separately from gasoline or diesel fuel 
produced by its domestic refinery or refineries.
    (f) Where a refinery or import facility is jointly owned by two or 
more parties, the requirements of paragraph (b) of this section may be 
met by one of the joint owners for all of the gasoline or diesel fuel 
produced/imported at the facility, or each party may meet the 
requirements of paragraph (b) of this section for the portion of the 
gasoline or diesel fuel that it produces or imports, as long as all of 
the gasoline or diesel fuel produced/imported at the facility is 
accounted for in determining the Renewable Volume Obligations under 
Sec.  80.1407. In either case, all joint

[[Page 154]]

owners are subject to the liability provisions of Sec.  80.1461(d).
    (g) The requirements in paragraph (b) of this section apply to the 
following compliance periods: Beginning in 2010, and every year 
thereafter, the compliance period is January 1 through December 31.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26037, May 10, 2010; 88 
FR 44581, July 12, 2023]



Sec.  80.1407  How are the Renewable Volume Obligations calculated?

    (a) The Renewable Volume Obligations for an obligated party are 
determined according to the following formulas:
    (1) Cellulosic biofuel.

RVOCB,i = (RFStdCB,i * (GVi + 
DVi)) + DCB,i-1

Where:

RVOCB,i = The Renewable Volume Obligation for cellulosic 
          biofuel for an obligated party for calendar year i, in 
          gallons.
RFStdCB,i = The standard for cellulosic biofuel for calendar 
          year i, determined by EPA pursuant to Sec.  80.1405, in 
          percent.
GVi = The non-renewable gasoline volume, determined in 
          accordance with paragraphs (b), (c), and (f) of this section, 
          which is produced in or imported into the covered location by 
          an obligated party in calendar year i, in gallons.
DVi = The non-renewable diesel volume, determined in 
          accordance with paragraphs (d), (e), and (f) of this section, 
          produced in or imported into the covered location by an 
          obligated party in calendar year i, in gallons.
DCB,i-1 = Deficit carryover from the previous year for 
          cellulosic biofuel, in gallons.

    (2) Biomass-based diesel.

RVOBBD,i = (RFStdBBD,i * (GVi + 
DVi)) + DBBD,i-1

Where:

RVOBBD,i = The Renewable Volume Obligation for biomass-based 
          diesel for an obligated party for calendar year i, in gallons.
RFStdBBD,i = The standard for biomass-based diesel for 
          calendar year i, determined by EPA pursuant to Sec.  80.1405, 
          in percent.
GVi = The non-renewable gasoline volume, determined in 
          accordance with paragraphs (b), (c), and (f) of this section, 
          which is produced in or imported into the covered location by 
          an obligated party in calendar year i, in gallons.
DVi = The non-renewable diesel volume, determined in 
          accordance with paragraphs (d), (e), and (f) of this section, 
          produced in or imported into the covered location by an 
          obligated party in calendar year i, in gallons.
DBBD,i-1 = Deficit carryover from the previous year for 
          biomass-based diesel, in gallons.

    (3) Advanced biofuel.

RVOAB,i = (RFStdAB,i * (GVi + 
DVi)) + DAB,i-1

Where:

RVOAB,i = The Renewable Volume Obligation for advanced 
          biofuel for an obligated party for calendar year i, in 
          gallons.
RFStdAB,i = The standard for advanced biofuel for calendar 
          year i, determined by EPA pursuant to Sec.  80.1405, in 
          percent.
GVi = The non-renewable gasoline volume, determined in 
          accordance with paragraphs (b), (c), and (f) of this section, 
          which is produced in or imported into the covered location by 
          an obligated party in calendar year i, in gallons.
DVi = The non-renewable diesel volume, determined in 
          accordance with paragraphs (d), (e), and (f) of this section, 
          produced in or imported into the covered location by an 
          obligated party in calendar year i, in gallons.
DAB,i-1 = Deficit carryover from the previous year for 
          advanced biofuel, in gallons.

    (4) Renewable fuel.

RVORF,i = (RFStdRF,i * (GVi + 
DVi)) + DRF,i-1

Where:

RVORF,i = The Renewable Volume Obligation for renewable fuel 
          for an obligated party for calendar year i, in gallons.
RFStdRF,i = The standard for renewable fuel for calendar year 
          i, determined by EPA pursuant to Sec.  80.1405, in percent.
GVi = The non-renewable gasoline volume, determined in 
          accordance with paragraphs (b), (c), and (f) of this section, 
          which is produced in or imported into the covered location by 
          an obligated party in calendar year i, in gallons.
DVi = The non-renewable diesel volume, determined in 
          accordance with paragraphs (d), (e), and (f) of this section, 
          produced in or imported into the covered location by an 
          obligated party in calendar year i, in gallons.
DRF,i-1 = Deficit carryover from the previous year for 
          renewable fuel, in gallons.

    (b) The non-renewable gasoline volume, GVi, for an 
obligated party for a given year as specified in paragraph (a) of this 
section is calculated as follows:

[[Page 155]]

[GRAPHIC] [TIFF OMITTED] TR26MR10.430

Where:

x = Individual batch of gasoline produced or imported in calendar year 
          i.
n = Total number of batches of gasoline produced or imported in calendar 
          year i.
GX = Volume of batch x of gasoline produced or imported, per 
          paragraph (c) of this section, in gallons.
y = Individual batch of renewable fuel blended into gasoline in calendar 
          year i.
m = Total number of batches of renewable fuel blended into gasoline in 
          calendar year i.
RBGy = Volume of batch y of renewable fuel blended into 
          gasoline, in gallons.

    (c) Except as specified in paragraph (f) of this section, all of the 
following products that are produced or imported during a compliance 
period, collectively called ``gasoline'' for the purposes of this 
section (unless otherwise specified), are to be included (but not 
double-counted) in the volume used to calculate a party's Renewable 
Volume Obligations under paragraph (a) of this section, except as 
provided in paragraph (f) of this section:
    (1) Reformulated gasoline, whether or not renewable fuel is later 
added to it.
    (2) Conventional gasoline, whether or not renewable fuel is later 
added to it.
    (3) Reformulated gasoline blendstock that becomes finished 
reformulated gasoline upon the addition of oxygenate (RBOB).
    (4) Conventional gasoline blendstock that becomes finished 
conventional gasoline upon the addition of oxygenate (CBOB).
    (5) Blendstock (including butane, pentane, and gasoline treated as 
blendstock (GTAB)) that has been combined with other blendstock and/or 
finished gasoline to produce gasoline.
    (6) Any gasoline, or any unfinished gasoline that becomes finished 
gasoline upon the addition of oxygenate, that is produced or imported to 
comply with a state or local fuels program.
    (d) The diesel non-renewable volume, DVi, for an 
obligated party for a given year as specified in paragraph (a) of this 
section is calculated as follows:
[GRAPHIC] [TIFF OMITTED] TR26MR10.431

Where:

x = Individual batch of diesel produced or imported in calendar year i.
n = Total number of batches of diesel produced or imported in calendar 
          year i.
DX = Volume of batch x of diesel produced or imported, per 
          paragraph (e) of this section, in gallons.
y = Individual batch of renewable fuel blended into diesel in calendar 
          year i.
m = Total number of batches of renewable fuel blended into diesel in 
          calendar year i.
RBDy = Volume of batch y of renewable fuel blended into 
          diesel, in gallons.

    (e) Except as specified in paragraph (f) of this section, all 
products meeting the definition of MVNRLM diesel fuel that are produced 
or imported during a compliance period, collectively called ``diesel 
fuel'' for the purposes of this section (unless otherwise specified), 
are to be included (but not double-counted) in the volume used to 
calculate a party's Renewable Volume Obligations under paragraph (a) of 
this section.
    (f) The following products are not included in the volume of 
gasoline or diesel fuel produced or imported used to calculate a party's 
Renewable Volume Obligations according to paragraph (a) of this section:
    (1) Any renewable fuel. Renewable fuel for which a RIN is invalidly 
generated under Sec.  80.1431 may not be excluded from a party's 
renewable volume obligations.
    (2) Blendstock that has not been combined with other blendstock, 
finished gasoline, or diesel to produce gasoline or diesel.
    (3) Gasoline or diesel fuel produced or imported for use in Alaska, 
the Commonwealth of Puerto Rico, the U.S. Virgin Islands, Guam, American 
Samoa, and the Commonwealth of the Northern Marianas, unless the area 
has opted into the RFS program under Sec.  80.1443.

[[Page 156]]

    (4) Gasoline or diesel fuel produced by a small refinery that has an 
exemption under Sec.  80.1441 or an approved small refiner that has an 
exemption under Sec.  80.1442.
    (5) Gasoline or diesel fuel exported for use outside the covered 
location, and gasoline or diesel fuel exported for use outside Alaska, 
the Commonwealth of Puerto Rico, the U.S. Virgin Islands, Guam, American 
Samoa, and the Commonwealth of the Northern Marianas, if the area has 
opted into the RFS program under Sec.  80.1443.
    (6) For blenders, the volume of finished gasoline, finished diesel 
fuel, RBOB, or CBOB to which a blender adds blendstocks.
    (7) Transmix gasoline product (as defined in 40 CFR 1090.80) and 
transmix distillate product (as defined in 40 CFR 1090.80) produced by a 
transmix processor, and transmix blended into gasoline or diesel fuel by 
a transmix blender under 40 CFR 1090.500.
    (8) Any gasoline or diesel fuel that is not transportation fuel.
    (9) Distillate fuel with a sulfur content greater than 15 ppm that 
is clearly designated for a use other than transportation fuel, such as 
heating oil or ECA marine fuel.
    (10) Distillate fuel that meets a 15 ppm sulfur standard, is 
designated for non-transportation use, and that remains completely 
segregated from MVNRLM diesel fuel from the point of production through 
to the point of use for a non-transportation purpose, such as heating 
oil or ECA marine fuel.
    (11) Certified NTDF, if the refiner or importer has a reasonable 
expectation that the fuel will be used for non-transportation purposes. 
To establish a reasonable expectation that the fuel will be used for 
non-transportation purposes, a refiner or importer must, at a minimum, 
be able to demonstrate that they supply areas that use heating oil, ECA 
marine fuel, or 15 ppm distillate fuel for non-transportation purposes 
in quantities that are consistent with past practices or changed 
circumstances. EPA may consider any other relevant information, 
including the price of the fuel, in assessing whether a refiner or 
importer has a reasonable expectation that the fuel will be used for 
non-transportation purposes.

[75 FR 14863, Mar. 26, 2010, as amended at 79 FR 23655, Apr. 28, 2014; 
85 FR 7074, Feb. 6, 2020; 85 FR 78467, Dec. 4, 2020; 87 FR 39661, July 
1, 2022; 88 FR 44581, July 12, 2023]



Sec.  80.1408  What are the requirements for parties that own and 
redesignate certified NTDF as MVNRLM diesel fuel?

    (a) Beginning January 1, 2021, a party that owns certified NTDF, and 
only a party that owns certified NTDF, may redesignate NTDF as MVNRLM 
diesel fuel if they meet all of the following requirements:
    (1) Register as a refiner and register each facility where 
redesignation occurs as a refinery under Sec.  80.76. NTDF may only be 
redesignated as MVNRLM diesel fuel at a facility registered as a 
refinery.
    (2) At each facility, calculate a balance of MVNRLM diesel fuel 
during each annual compliance period according to the following 
equation:

MVNRLMBAL = MVNRLMO + MVNRLMINVCHG-
MVNRLMI

Where:

MVNRLMBAL = the balance for MVNRLM diesel fuel for the 
          compliance period.
MVNRLMI = the total volume of all batches of fuel designated 
          as MVNRLM diesel fuel owned when the fuel was received at the 
          facility and acquired at the facility during the compliance 
          period. Any MVNRLM diesel fuel produced (apart from 
          redesignation of NTDF to MVNRLM diesel fuel) or imported into 
          the facility must also be included in this volume.
MVNRLMO = the total volume of all batches of fuel designated 
          as MVNRLM diesel fuel owned and sold or transferred to other 
          parties at the facility during the compliance period.
MVNRLMINVCHG = the volume of MVNRLM diesel fuel owned at the 
          end of the compliance period minus the volume of MVNRLM diesel 
          fuel owned at the beginning of the compliance period, 
          including accounting for any corrections in inventory due to 
          volume swell or shrinkage, difference in measurement 
          calibration between receiving and delivering meters, and 
          similar matters, where corrections that increase inventory are 
          defined as positive.


[[Page 157]]


    (i) If MVNRLMBAL is greater than 0, an RVO is incurred by 
the redesignating party for the volume of diesel fuel equal to MVNRLM. 
The redesignating party must also comply with all of the following:
    (A) The reporting requirements of Sec.  80.1451(a)(1)(xix).
    (B) The recordkeeping requirements of Sec.  80.1454(o).
    (C) The attest engagement requirements of Sec. Sec.  80.1464 and 
80.1475, as applicable.
    (ii) If MVNRLMBAL is less than or equal to 0, no RVO is 
incurred by the redesignating party for any redesignated certified NTDF. 
These parties must comply with all of the following:
    (A) The reporting requirements of Sec.  80.1451(i).
    (B) The recordkeeping requirements of Sec.  80.1454(o).
    (b) Parties that incur an RVO under paragraph (a)(2)(i) of this 
section must comply with all applicable requirements for obligated 
parties under this subpart.
    (c) The provisions of this section do not apply to gasoline or 
diesel fuel that is designated for export.

[85 FR 7074, Feb. 6, 2020, as amended at 87 FR 39661, July 1, 2022]



Sec. Sec.  80.1409-80.1414  [Reserved]



Sec.  80.1415  How are equivalence values assigned to renewable fuel?

    (a)(1) Each gallon of a renewable fuel, or gallon equivalent 
pursuant to paragraph (b)(5) or (b)(6) of this section, shall be 
assigned an equivalence value by the producer or importer pursuant to 
paragraph (b) or (c) of this section.
    (2) The equivalence value is a number that is used to determine how 
many gallon-RINs can be generated for a gallon of renewable fuel 
according to Sec.  80.1426.
    (b) Equivalence values shall be assigned for certain renewable fuels 
as follows:
    (1) Ethanol which is denatured shall have an equivalence value of 
1.0.
    (2) Biodiesel shall have an equivalence value of 1.5.
    (3) Butanol shall have an equivalence value of 1.3.
    (4) Non-ester renewable diesel with a lower heating value of at 
least 123,500 Btu/gal shall have an equivalence value of 1.7.
    (5) 77,000 Btu LHV of renewable CNG/LNG or RNG shall represent one 
gallon of renewable fuel with an equivalence value of 1.0.
    (6) 22.6 kWh of electricity shall represent one gallon of renewable 
fuel with an equivalence value of 1.0.
    (7) For all other renewable fuels, a producer or importer must 
submit an application to EPA for an equivalence value following the 
provisions of paragraph (c) of this section. A producer or importer may 
also submit an application for an alternative equivalence value pursuant 
to paragraph (c) of this section if the renewable fuel is listed in this 
paragraph (b), but the producer or importer has reason to believe that a 
different equivalence value than that listed in this paragraph (b) is 
warranted.
    (c) Calculation of new equivalence values. (1) The equivalence value 
for renewable fuels described in paragraph (b)(7) of this section shall 
be calculated using the following formula:

EqV = (R/0.972) * (EC/77,000)

Where:

EqV = Equivalence Value for the renewable fuel, rounded to the nearest 
          tenth.
R = Renewable content of the renewable fuel. This is a measure of the 
          portion of a renewable fuel that came from renewable biomass, 
          expressed as a fraction, on an energy basis.
EC = Energy content of the renewable fuel, in Btu per gallon (lower 
          heating value).

    (2) The application for an equivalence value shall include a 
technical justification that includes all the following:
    (i) A calculation for the requested equivalence value according to 
the equation in paragraph (c)(1) of this section, including supporting 
documentation for the value of EC used in the calculation such as a 
certificate of analysis from a laboratory that verifies the lower 
heating value in Btu per gallon of the renewable fuel produced.
    (ii) For each feedstock, biointermediate, component, or additive 
that is used to make the renewable fuel, provide a description, the 
percent input, and identify whether or not it is renewable biomass or is 
produced from renewable biomass.

[[Page 158]]

    (iii) For each feedstock or biointermediate that also qualifies as a 
renewable fuel, state whether or not RINs have been previously generated 
for such feedstock.
    (iv) A description of the renewable fuel and the production process, 
including a block diagram that shows all inputs and outputs at each step 
of the production process with a sample quantity of all inputs and 
outputs for one batch of renewable fuel produced.
    (3) The Agency will review the technical justification and assign an 
appropriate equivalence value to the renewable fuel based on the 
procedure in this paragraph (c).
    (4) Applications for equivalence values must be sent to the 
attention of ``RFS2 Program (Equivalence Value Application)'' to the 
address in Sec.  80.10(a).
    (5) All applications required under this section shall be submitted 
on forms and following procedures prescribed by EPA.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26037, May 10, 2010; 77 
FR 1355, Jan. 9, 2012; 79 FR 42159, July 18, 2014; 85 FR 7075, Feb. 6, 
2020; 87 FR 39661, July 1, 2022; 88 FR 44581, July 12, 2023]



Sec.  80.1416  Petition process for evaluation of new renewable fuels 
pathways.

    (a) Pursuant to this section, a party may petition EPA to assign a D 
code for their renewable fuel if any of the following apply:
    (1) The renewable fuel pathway has not been evaluated by EPA to 
determine if it qualifies for a D code pursuant to Sec.  80.1426(f).
    (2) The renewable fuel pathway has been determined by EPA not to 
qualify for a D code pursuant to Sec.  80.1426(f) and the party can 
document significant differences between their fuel production processes 
and the fuel production processes already considered by EPA.
    (3) The renewable fuel pathway has been determined to qualify for a 
certain D code pursuant to Sec.  80.1426(f) and the party can document 
significant differences between their fuel production processes and the 
fuel production processes already considered by EPA that may qualify 
their fuel pathway for a different D code.
    (b)(1) Any petition under paragraph (a) of this section shall 
include all the following:
    (i) The information specified under 40 CFR 1090.805.
    (ii) A technical justification that includes a description of the 
renewable fuel, feedstock(s), and biointermediate(s) used to make it, 
and the production process. The justification must include process 
modeling flow charts.
    (iii) A mass balance for the pathway, including feedstocks and 
biointermediates, fuels produced, co-products, and waste materials 
production.
    (iv) Information on co-products, including their expected use and 
market value.
    (v) An energy balance for the pathway, including a list of any 
energy and process heat inputs and outputs used in the pathway, 
including such sources produced off site or by another entity.
    (vi) Any other relevant information, including information 
pertaining to energy saving technologies or other process improvements.
    (vii) EPA may ask for additional information to complete the 
lifecycle greenhouse gas assessment of the new fuel or pathway.
    (2) For those companies who use a feedstock not previously evaluated 
by EPA under this subpart, the petition must include all the following 
in addition to the requirements in paragraph (b)(1) of this section:
    (i) Type of feedstock and description of how it meets the definition 
of renewable biomass.
    (ii) Market value of the feedstock.
    (iii) List of other uses for the feedstock.
    (iv) List of chemical inputs needed to produce the renewable biomass 
source of the feedstock and prepare the renewable biomass for processing 
into feedstock.
    (v) Identify energy needed to obtain the feedstock and deliver it to 
the facility. If applicable, identify energy needed to plant and harvest 
the renewable biomass source of the feedstock and modify the source to 
create the feedstock.
    (vi) Current and projected quantities of the feedstock that will be 
used to

[[Page 159]]

produce the fuel, including information on current and projected yields 
for feedstocks that are harvested or collected.
    (vii) EPA may ask for additional information to complete the 
lifecycle Greenhouse Gas assessment of the new fuel or pathway.
    (c)(1) A company may only submit one petition per pathway. If EPA 
determines the petition to be incomplete, then the company may resubmit.
    (2) The petition must be signed and certified as meeting all the 
applicable requirements of this subpart by the responsible corporate 
officer of the applicant company.
    (3) If EPA determines that the petition is incomplete then EPA will 
notify the applicant in writing that the petition is incomplete and will 
not be reviewed further. However, an amended petition that corrects the 
omission may be re-submitted for EPA review.
    (4) If the fuel or pathway described in the petition does not meet 
the definition of renewable fuel, advanced biofuel, cellulosic biofuel, 
or biomass-based diesel, then EPA will notify the applicant in writing 
that the petition is denied and will not be reviewed further.
    (d) A D code must be approved prior to the generation of RINs for 
the fuel in question. During petition review EPA will evaluate whether a 
feedstock meets the 75% cellulosic content threshold allowing cellulosic 
RINs to be generated for the entire fuel volume produced. EPA may ask 
for additional information to complete this evaluation.
    (e) The petition under this section shall be submitted on forms and 
following procedures as prescribed by EPA.

[75 FR 26037, May 10, 2010, as amended at 79 FR 42160, July 18, 2014; 85 
FR 78467, Dec. 4, 2020; 87 FR 39662, July 1, 2022; 88 FR 44582, July 12, 
2023]



Sec. Sec.  80.1417-80.1424  [Reserved]



Sec.  80.1425  Renewable Identification Numbers (RINs).

    RINs generated on or after July 1, 2010 shall not be generated as a 
38-digit code, but shall be identified by the information specified in 
paragraphs (a) through (i) of this section and introduced into EMTS as 
data elements during the generation of RINs pursuant to Sec.  
80.1452(b). For RINs generated prior to July 1, 2010, each RIN is a 38-
digit code of the following form:

                         KYYYYCCCCFFFFFBBBBBRRD

                            SSSSSSSSEEEEEEEE

    (a) K is a number identifying the type of RIN as follows:
    (1) K has the value of 1 when the RIN is assigned to a volume of 
renewable fuel pursuant to Sec.  80.1426(e) and Sec.  80.1428(a).
    (2) K has the value of 2 when the RIN has been separated from a 
volume of renewable fuel pursuant to Sec.  80.1429.
    (b) YYYY is the calendar year in which the RIN was generated.
    (c) CCCC is the registration number assigned, according to Sec.  
80.1450, to the producer or importer of the batch of renewable fuel.
    (d) FFFFF is the registration number assigned, according to Sec.  
80.1450, to the facility at which the batch of renewable fuel was 
produced or imported.
    (e) BBBBB is a serial number assigned to the batch which is chosen 
by the producer or importer of the batch such that no two batches have 
the same value in a given calendar year.
    (f) RR is a number representing 10 times the equivalence value of 
the renewable fuel as specified in Sec.  80.1415.
    (g) D is a number determined according to Sec.  80.1426(f) and 
identifying the type of renewable fuel, as follows:
    (1) D has the value of 3 to denote fuel categorized as cellulosic 
biofuel.
    (2) D has the value of 4 to denote fuel categorized as biomass-based 
diesel.
    (3) D has the value of 5 to denote fuel categorized as advanced 
biofuel.
    (4) D has the value of 6 to denote fuel categorized as renewable 
fuel.
    (5) D has the value of 7 to denote fuel categorized as cellulosic 
diesel.
    (h) SSSSSSSS is a number representing the first gallon-RIN 
associated with a batch of renewable fuel.
    (i) EEEEEEEE is a number representing the last gallon-RIN associated 
with a volume of renewable fuel.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 79977, Dec. 21, 2010]

[[Page 160]]



Sec.  80.1426  How are RINs generated and assigned to batches of renewable
fuel?

    (a) General requirements. (1) Renewable fuel producers, importers of 
renewable fuel, and other parties allowed to generate RINs under this 
part may only generate RINs to represent renewable fuel if they meet the 
requirements of paragraphs (b) and (c) of this section and if all the 
following occur:
    (i) The fuel qualifies for a D code pursuant to Sec.  80.1426(f), or 
the EPA has approved a petition for use of a D code pursuant to Sec.  
80.1416.
    (ii) The fuel is demonstrated to be produced from renewable biomass 
pursuant to the reporting requirements of Sec.  80.1451 and the 
recordkeeping requirements of Sec.  80.1454.
    (A) Feedstocks meeting the requirements of renewable biomass through 
the aggregate compliance provision at Sec.  80.1454(g) are deemed to be 
renewable biomass.
    (B) [Reserved]
    (iii) The fuel was produced in compliance with the registration 
requirements of Sec.  80.1450, the reporting requirements of Sec.  
80.1451, the recordkeeping requirements of Sec.  80.1454, all conditions 
set forth in an approval document for a pathway petition submitted under 
Sec.  80.1416, and all other applicable regulations of this subpart M.
    (iv) The fuel is designated on a product transfer document (PTD) for 
use as transportation fuel, heating oil, or jet fuel in accordance with 
Sec.  80.1453(a)(12).
    (2) To generate RINs for imported renewable fuel, including any 
renewable fuel contained in imported transportation fuel, heating oil, 
or jet fuel, importers must obtain information from a non-RIN-generating 
foreign renewable fuel producer that is registered pursuant to Sec.  
80.1450 sufficient to make the appropriate determination regarding the 
applicable D code and compliance with the renewable biomass definition 
for each imported batch for which RINs are generated.
    (3) A party generating a RIN shall specify the appropriate numerical 
values for each component of the RIN in accordance with the provisions 
of Sec.  80.1425(a) and paragraph (f) of this section.
    (4) Where a feedstock or biointermediate is used to produce 
renewable fuel and is not entirely renewable biomass, RINs may only be 
generated for the portion of fuel that is derived from renewable 
biomass, as calculated under paragraph (f)(4) of this section.
    (b) Regional applicability. (1) Except as provided in paragraph (c) 
of this section, a RIN may only be generated by a renewable fuel 
producer or importer for a batch of renewable fuel that satisfies the 
requirements of paragraph (a)(1) of this section if it is produced or 
imported for use as transportation fuel, heating oil, or jet fuel in the 
covered location.
    (2) If the Administrator approves a petition of Alaska or a United 
States territory to opt-in to the renewable fuel program under the 
provisions in Sec.  80.1443, then the requirements of paragraph (b)(1) 
of this section shall also apply to renewable fuel produced or imported 
for use as transportation fuel, heating oil, or jet fuel in that state 
or territory beginning in the next calendar year.
    (c) Cases in which RINs are not generated. (1) No person may 
generate RINs for fuel that does not satisfy the requirements of 
paragraph (a)(1) of this section.
    (2) A party must not generate RINs for renewable fuel that is not 
produced for use in the covered location.
    (3) [Reserved]
    (4) Importers shall not generate RINs for renewable fuel imported 
from a non-RIN-generating foreign renewable fuel producer unless the 
foreign renewable fuel producer is registered with EPA as required in 
Sec.  80.1450.
    (5) Importers shall not generate RINs for renewable fuel that has 
already been assigned RINs by a RIN-generating foreign renewable fuel 
producer.
    (6) A party is prohibited from generating RINs for a volume of fuel 
that it produces if the fuel has been produced by a process that uses a 
renewable fuel as a feedstock, and the renewable fuel that is used as a 
feedstock was produced by another party, except that RINs may be 
generated for such fuel if allowed by the EPA in response to a petition 
submitted pursuant to Sec.  80.1416 and the petition approval specifies 
a mechanism to prevent double counting

[[Page 161]]

of RINs or where RINs are generated for RNG.
    (7) For renewable fuel oil that is heating oil as defined in 
paragraph (2) of the definition of heating oil in Sec.  80.2, renewable 
fuel producers and importers shall not generate RINs unless they have 
received affidavits from the final end user or users of the fuel oil as 
specified in Sec.  80.1451(b)(1)(ii)(T)(2).
    (8) RINs must not be generated for a biointermediate.
    (d)(1) Definition of batch. For the purposes of this section and 
Sec.  80.1425, a ``batch of renewable fuel'' is a volume of renewable 
fuel that has been assigned a unique identifier within a calendar year 
by the producer or importer of the renewable fuel in accordance with the 
provisions of this section and Sec.  80.1425. Biogas producers and RNG 
producers must use the definitions of batch for biogas and RNG in 
Sec. Sec.  80.105(j) and 80.110(j), respectively.
    (i) The number of gallon-RINs generated for a batch of renewable 
fuel may not exceed 99,999,999.
    (ii) A batch of renewable fuel cannot represent renewable fuel 
produced or imported in excess of one calendar month.
    (2) Multiple gallon-RINs generated to represent a given volume of 
renewable fuel can be represented by a single batch-RIN through the 
appropriate designation of the RIN volume codes SSSSSSSS and EEEEEEEE.
    (i) The value of SSSSSSSS in the batch-RIN shall be 00000001 to 
represent the first gallon-RIN associated with the volume of renewable 
fuel.
    (ii) The value of EEEEEEEE in the batch-RIN shall represent the last 
gallon-RIN associated with the volume of renewable fuel, based on the 
RIN volume VRIN determined pursuant to paragraph (f) of this 
section.
    (iii) Under Sec.  80.1452, RIN volumes will be managed by EMTS. RIN 
codes SSSSSSSS and EEEEEEEE do not have a role in EMTS.
    (e) Assignment of RINs to batches. (1) Except as provided in 
paragraph (g) of this section for delayed RINs, the producer or importer 
of renewable fuel must assign all RINs generated from a specific batch 
of renewable fuel to that batch of renewable fuel.
    (2) A RIN is assigned to a volume of renewable fuel when ownership 
of the RIN is transferred along with the transfer of ownership of the 
volume of renewable fuel, pursuant to Sec.  80.1428(a).
    (3) All assigned RINs shall have a K code value of 1.
    (f) Generation of RINs--(1) Applicable pathways. (i) D codes must be 
used in RINs generated by producers or importers of renewable fuel 
according to approved pathways or as specified in paragraph (f)(6) of 
this section.
    (ii) In choosing an appropriate D code, producers and importers may 
disregard any incidental, de minimis feedstock contaminants that are 
impractical to remove and are related to customary feedstock production 
and transport.
    (iii) Tables 1 and 2 to this section do not apply to, and impose no 
requirements with respect to, volumes of fuel for which RINs are 
generated pursuant to paragraph (f)(6) of this section.
    (iv) Pathways in Table 1 to this section and advanced technologies 
in Table 2 to this section also apply in cases where the renewable fuel 
producer is using a biointermediate.
    (v) For the purposes of identifying the appropriate pathway in Table 
1 to this section, biointermediates used for the production of renewable 
fuel are considered to be equivalent to the renewable biomass from which 
they were derived, with the following exceptions:
    (A) Oil that is physically separated from any woody or herbaceous 
biomass and used to produce renewable fuel shall not generate D-code 3 
or 7 RINs.
    (B) Sugar or starch that is physically separated from cellulosic 
biomass and used to produce renewable fuel shall not generate D-code 3 
or 7 RINs.
    (vi) If a renewable fuel producer uses a biointermediate for the 
production of renewable fuel, additional requirements apply to both the 
renewable fuel producer and the biointermediate producer as described in 
Sec.  80.1476.
    (2) Renewable fuel that can be described by a single pathway. (i) 
The number of gallon-RINs that shall be generated for a batch of 
renewable fuel by a producer or importer for renewable fuel that can be 
described by a single pathway shall be equal to a volume calculated 
according to the following formula:


[[Page 162]]


VRIN = EqV * Vs

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that shall be generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415.
Vs = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.

    (ii) The D code that shall be used in the RINs generated shall be 
the D code specified in the approved pathway that corresponds to the 
pathway that describes the producer's operations.
    (3) Renewable fuel that can be described by two or more pathways. 
(i) The D codes that shall be used in the RINs generated by a producer 
or importer whose renewable fuel can be described by two or more 
pathways shall be the D codes specified in the approved pathways that 
correspond to the pathways that describe the renewable fuel throughout 
that calendar year.
    (ii) If all the pathways describing the producer's operations have 
the same D code and each batch is of a single fuel type, then that D 
code shall be used in all the RINs generated and the number of gallon-
RINs that shall be generated for a batch of renewable fuel shall be 
equal to a volume calculated according to the following formula:

VRIN = EqV * Vs

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that shall be generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415.
Vs = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.

    (iii) If all the pathways describing the producer's operations have 
the same D code but individual batches are comprised of a mixture of 
fuel types with different equivalence values, then that D code shall be 
used in all the RINs generated and the number of gallon-RINs that shall 
be generated for a batch of renewable fuel shall be equal to a volume 
calculated according to the following formula:

VRIN = [Sigma](EqVi * Vs,i)

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that shall be generated for the batch.
EqVi = Equivalence value for fuel type i in the batch of 
          renewable fuel per Sec.  80.1415.
    Vs,i = Standardized volume of fuel type i in the batch of 
renewable fuel at 60 [deg]F, in gallons, calculated in accordance with 
paragraph (f)(8) of this section.

    (iv) If the pathway applicable to a producer changes on a specific 
date, such that one pathway applies before the date and another pathway 
applies on and after the date, and each batch is of a single fuel type, 
then the applicable D code and batch identifier used in generating RINs 
must change on the date that the change in pathway occurs and the number 
of gallon-RINs that shall be generated for a batch of renewable fuel 
shall be equal to a volume calculated according to the following 
formula:

VRIN = EqV * Vs

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that shall be generated for a batch with 
          a single applicable D code.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415.
Vs = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.

    (v) If a producer produces batches that are comprised of a mixture 
of fuel types with different equivalence values and different applicable 
D codes, then separate values for VRIN must be calculated for 
each category of renewable fuel according to the following formula. All 
batch-RINs thus generated must be assigned to unique batch identifiers 
for each portion of the batch with a different D code.

VRIN,DX = EqVDX * VS,DX

Where:

VRIN,DX = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that must be generated for the portion 
          of the batch with a D code of X.
EqVDX = Equivalence value for the portion of the batch with a 
          D code of X, per Sec.  80.1415.
VS,DX = Standardized volume at 60 [deg]F of the portion of 
          the batch that must be assigned a D code of X, in gallons, per 
          paragraph (f)(8) of this section.


[[Page 163]]


    (vi)(A) If a producer produces a single type of renewable fuel using 
two or more different feedstocks that are processed simultaneously, and 
each batch is comprised of a single type of fuel, then the number of 
gallon-RINs that must be generated for a batch of renewable fuel and 
assigned a particular D code must be calculated as follows:
[GRAPHIC] [TIFF OMITTED] TR12JY23.012

Where:

VRIN,DX = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that must be generated for a batch of 
          renewable fuel with a D code of X.
EqV = Equivalence value for the renewable fuel per Sec.  80.1415.
VS = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, per paragraph (f)(8) of this section.
FEDX = The total feedstock energy from all feedstocks whose 
          pathways have been assigned a D code of X, in Btu HHV, per 
          paragraphs (f)(3)(vi)(B) and (C) of this section.
FEtotal = The total feedstock energy from all feedstocks, in 
          Btu HHV, per paragraphs (f)(3)(vi)(B) and (C) of this section.

    (B) Except for biogas produced from anaerobic digestion, the 
feedstock energy value of each feedstock must be calculated as follows:

FEDX,i = Mi * (1-mi) * CFi

Where:

FEDX,i = The amount of energy from feedstock i that forms 
          energy in the renewable fuel and whose pathway has been 
          assigned a D code of X, in Btu HHV.
Mi = Mass of feedstock i, in pounds, measured on a daily or 
          per-batch basis.
mi = Average moisture content of feedstock i, as a mass 
          fraction.
CFi = Converted fraction in annual average Btu HHV/lb, except 
          as otherwise provided by Sec.  80.1451(b)(1)(ii)(U), 
          representing that portion of feedstock i that is converted to 
          fuel by the producer.

    (C) For biogas produced from anaerobic digestion, the volume of 
biogas must be measured under Sec.  80.105(f) and the feedstock energy 
value of each feedstock must be calculated as specified in Sec.  
80.105(j) by substituting ``feedstock energy'' for ``batch volume of 
biogas'' in all cases.

    (4) Renewable fuel that is produced by co-processing renewable 
biomass (including a biointermediate) and non-renewable feedstocks 
simultaneously to produce a fuel that is partially renewable. (i) The 
number of gallon-RINs that shall be generated for a batch of partially 
renewable fuel shall be equal to a volume VRIN calculated 
according to Method A or Method B.
    (A) Method A. (1) VRIN shall be calculated according to 
the following formula:

VRIN = EqV * Vs * FER/(FER + 
FENR)

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that shall be generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415, subject to qualification in paragraph (f)(4)(iii) of 
          this section.
Vs = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.
FER = Feedstock energy from renewable biomass (including the 
          renewable portion of a biointermediate) used to make the 
          transportation fuel, in Btu.
FENR = Feedstock energy from non-renewable feedstocks 
          (including the non-renewable portion of a biointermediate) 
          used to make the transportation fuel, heating oil, or jet 
          fuel, in Btu.

    (2) The value of FE for use in paragraph (f)(4)(i)(A)(1) of this 
section shall be calculated from the following formula:

FE = M * (1 - m) * CF * E

Where:

FE = Feedstock energy, in Btu.
M = Mass of feedstock, in pounds, measured on a daily or per-batch 
          basis.
m = Average moisture content of the feedstock, in mass percent.
CF = Converted Fraction in annual average mass percent, except as 
          otherwise provided by Sec.  80.1451(b)(1)(ii)(U), representing

[[Page 164]]

          that portion of the feedstock that is converted into 
          transportation fuel, heating oil, or jet fuel by the producer.
E = Energy content of the components of the feedstock that are converted 
          to fuel, in annual average Btu/lb, determined according to 
          paragraph (f)(7) of this section.

    (B) Method B. VRIN shall be calculated according to the 
following formula:

VRIN = EqV * Vs * R

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that shall be generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415, subject to qualification in paragraph (f)(4)(iii) of 
          this section.
Vs = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.
R = The renewable fraction of the fuel as measured by a carbon-14 dating 
          test method as provided in paragraph (f)(9) of this section.

    (ii) The D code that shall be used in the RINs generated to 
represent partially renewable transportation fuel, heating oil, or jet 
fuel shall be the D code specified in the approved pathway that 
corresponds to the pathway that describes a producer's operations. In 
determining the appropriate pathway, the contribution of non-renewable 
feedstocks to the production of partially renewable fuel shall be 
ignored.
    (iii) In determining the RIN volume VRIN according to 
paragraph (f)(4)(i)(A) or (f)(4)(i)(B) of this section, the equivalence 
value used to determine VRIN which is calculated according to 
Sec.  80.1415 shall use a value of 1.0 to represent R, the renewable 
content of the renewable fuel.
    (iv) RIN-generating parties must calculate RIN volume 
VRIN for co-processed fuels produced from a biointermediate 
as described in paragraph (f)(4)(i)(B) of this section and calculate the 
renewable fraction of a fuel R using one of the following:
    (A) Method B of ASTM D6866 (incorporated by reference, see Sec.  
80.12) as described in paragraph (f)(9)(ii) of this section.
    (B) If the renewable content of the co-processed fuel is 10 percent 
or greater, Method C of ASTM D6866 as described in paragraph (f)(9)(ii) 
of this section.
    (C) Any other EPA-approved method under paragraph (f)(9)(ii) of this 
section.
    (5) Renewable fuel produced from separated yard waste, separated 
food waste, and separated MSW. (i)(A) Separated yard waste is deemed to 
be composed entirely of cellulosic materials.
    (B) Separated food waste is deemed to be composed entirely of non-
cellulosic materials, unless a party demonstrates that a portion of the 
feedstock is cellulosic through approval of their facility registration.
    (ii)(A) A feedstock qualifies as separated yard waste or separated 
food waste only if it is collected according to a plan submitted to and 
accepted by EPA under the registration procedures specified in Sec.  
80.1450(b)(1)(vii).
    (B) A feedstock qualifies as separated MSW only if it is collected 
according to a plan submitted to and approved by EPA.
    (iii) Separation and recycling actions for separated MSW are 
considered to occur if:
    (A) Recyclable paper, cardboard, plastics, rubber, textiles, metals, 
and glass that can be recycled are separated and removed from the 
municipal solid waste stream to the extent reasonably practicable 
according to a plan submitted to and approved by U.S. EPA under the 
registration procedures specified in Sec.  80.1450(b)(1)(viii); and
    (B) The fuel producer has evidence of all contracts relating to the 
disposition of paper, cardboard, plastics, rubber, textiles, metals, and 
glass that are recycled.
    (iv)(A) The number of gallon-RINs that shall be generated for a 
batch of renewable fuel derived from separated yard waste shall be equal 
to a volume VRIN and is calculated according to the following 
formula:

VRIN = EqV * VS

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of cellulosic biofuel gallon-RINs that shall be 
          generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415.

[[Page 165]]

Vs = Standardized volume of the batch of renewable fuel at 60 [deg]F, in 
          gallons, calculated in accordance with paragraph (f)(8) of 
          this section.

    (B) The number of gallon-RINs that shall be generated for a batch of 
renewable fuel derived from separated food waste shall be equal to a 
volume VRIN and is calculated according to the following 
formula:

VRIN = EqV * VS

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of cellulosic or advanced biofuel gallon-RINs that 
          shall be generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415.
VS = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.

    (v) The number of cellulosic biofuel gallon-RINs that shall be 
generated for the cellulosic portion of a batch of renewable fuel 
derived from separated MSW shall be determined according to the 
following formula:

VRIN = EqV * VS * R

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of cellulosic biofuel gallon-RINs that shall be 
          generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415.
VS = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.
R = The calculated non-fossil fraction of the fuel as measured by a 
          carbon-14 dating test method as provided in paragraph (f)(9) 
          of this section, except that for biogas-derived renewable fuel 
          made from separated MSW, no testing is required and R = 1.
    (6) Renewable fuel not covered by an approved pathway. If no 
approved pathway applies to a producer's operations, the party may 
generate RINs if the fuel from its facility is produced from renewable 
biomass and qualifies for an exemption under Sec.  80.1403 from the 
requirement that renewable fuel achieve at least a 20 percent reduction 
in lifecycle greenhouse gas emissions compared to baseline lifecycle 
greenhouse gas emissions.
    (i) The number of gallon-RINs that shall be generated for a batch of 
renewable fuel that qualifies for an exemption from the 20 percent GHG 
reduction requirements under Sec.  80.1403 shall be equal to a volume 
calculated according to the following formula:

VRIN = EqV * Vs

Where:

VRIN = RIN volume, in gallons, for use in determining the 
          number of gallon-RINs that shall be generated for the batch.
EqV = Equivalence value for the batch of renewable fuel per Sec.  
          80.1415.
Vs = Standardized volume of the batch of renewable fuel at 60 
          [deg]F, in gallons, calculated in accordance with paragraph 
          (f)(8) of this section.

    (ii) A D code of 6 shall be used in the RINs generated under this 
paragraph (f)(6).
    (7) Determination of feedstock energy content factors.(i) For 
purposes of paragraphs (f)(3)(vi) and (f)(4)(i)(A)(2) of this section, 
producers must specify the value for E, the energy content of the 
components of the feedstock that are converted to renewable fuel, used 
in the calculation of the feedstock energy value FE.
    (ii) The value for E shall represent the higher or gross calorific 
heating value for a feedstock on a zero moisture basis.
    (iii) Producers must specify the value for E for each type of 
feedstock at least once per calendar year.
    (iv) A producer must use default values for E as provided in 
paragraph (f)(7)(vi) of this section, or must determine alternative 
values for its own feedstocks according to paragraph (f)(7)(v) of this 
section.
    (v) Producers that do not use a default value for E must use the 
following test methods, or alternative test methods as approved by EPA, 
to determine the value of E. The value of E shall be based upon the test 
results of a sample of feedstock that, based upon good engineering 
judgment, is representative of the feedstocks used to produce renewable 
fuel:
    (A) ASTM E870 or ASTM E711 for gross calorific value (both 
incorporated by reference, see Sec.  80.12).
    (B) ASTM D4442 or ASTM D4444 for moisture content (both incorporated 
by reference, see Sec.  80.12).

[[Page 166]]

    (vi) Default values for E.
    (A) Starch: 7,600 Btu/lb.
    (B) Sugar: 7,300 Btu/lb.
    (C) Vegetable oil: 17,000 Btu/lb.
    (D) Waste cooking oil or trap grease: 16,600 Btu/lb.
    (E) Tallow or fat: 16,200 Btu/lb.
    (F) Manure: 6,900 Btu/lb.
    (G) Woody biomass: 8,400 Btu/lb.
    (H) Herbaceous biomass: 7,300 Btu/lb.
    (I) Yard wastes: 2,900 Btu/lb.
    (J) Biogas: 11,000 Btu/lb.
    (K) Food waste: 2,000 Btu/lb.
    (L) Paper: 7,200 Btu/lb.
    (M) Crude oil: 19,100 Btu/lb.
    (N) Coal--bituminous: 12,200 Btu/lb.
    (O) Coal--anthracite: 13,300 Btu/lb.
    (P) Coal--lignite or sub-bituminous: 7,900 Btu/lb.
    (Q) Natural gas: 19,700 Btu/lb.
    (R) Tires or rubber: 16,000 Btu/lb.
    (S) Plastic: 19,000 Btu/lb.
    (8) Standardization of volumes. In determining the standardized 
volume of a batch of renewable fuel for purposes of generating RINs 
under this paragraph (f), the batch volumes shall be adjusted to a 
standard temperature of 60 [deg]F.
    (i) For ethanol, the following formula shall be used:

Vs,e = Va,e * (-0.0006301 * T + 1.0378)

Where:

Vs,e = Standardized volume of ethanol at 60 [deg]F, in 
          gallons.
Va,e = Actual volume of ethanol, in gallons.
T = Actual temperature of the batch, in [deg]F.

    (ii) For biodiesel, one of the following two methods for biodiesel 
temperature standardization to 60 [deg]Fahrenheit ([deg]F) shall be used

(A) Vs,b = Va.b * (-0.00045767 * T + 1.02746025)

Where

Vs,b = Standardized volume of biodiesel at 60 [deg]F, in 
          gallons.
Va,b = Actual volume of biodiesel, in gallons.
T = Actual temperature of the batch, in [deg]F.

    (B) The standardized volume of biodiesel at 60 [deg]F, in gallons, 
as calculated from the use of the American Petroleum Institute Refined 
Products Table 6B, as referenced in ASTM D1250 (incorporated by 
reference, see Sec.  80.12).
    (iii) For other renewable fuels, an appropriate formula commonly 
accepted by the industry shall be used to standardize the actual volume 
to 60 [deg]F. Formulas used must be reported to EPA, and may be 
determined to be inappropriate.
    (9) Use of radiocarbon dating test methods.(i) Parties may use a 
radiocarbon dating test method for determination of the renewable 
fraction of a fuel R used to determine VRIN as provided in 
paragraphs (f)(4) and (f)(5) of this section.
    (ii) Parties must use Method B or Method C of ASTM D6866 
(incorporated by reference, see Sec.  80.12), or an alternative test 
method as approved by EPA.
    (iii) For each batch of fuel, the value of R must be based on:
    (A) A radiocarbon dating test of the batch of fuel produced; or
    (B) A radiocarbon dating test of a composite sample of previously 
produced fuel, if all of the following conditions are met:
    (1) Based upon good engineering judgment, the renewable fraction of 
the composite sample must be representative of the batch of fuel 
produced.
    (2) The composite sample is comprised of a volume weighted 
combination of samples from every batch of partially renewable 
transportation fuel produced by the party over a period not to exceed 
one calendar month, or more frequently if necessary to ensure that the 
test results are representative of the renewable fraction of the 
partially renewable fuel.
    (3) The composite sample must be well mixed prior to testing.
    (4) A volume of each composite sample must be retained for a minimum 
of two years, and be of sufficient volume to permit two additional tests 
to be conducted.
    (iv) If the party is using the composite sampling approach according 
to paragraph (f)(9)(iii)(B) of this section, the party may estimate the 
value of R for use in generating RINs in the first month if all of the 
following conditions are met:
    (A) The estimate of R for the first month is based on information on 
the composition of the feedstock;
    (B) The party calculates R in the second month based on the 
application of a radiocarbon dating test on a composite sample pursuant 
to (f)(9)(iii)(B) of this section; and

[[Page 167]]

    (C) The party adjusts the value of R used to generate RINs in the 
second month using the following formula

Ri + 1,adj = 2 x Ri + 1,calc-Ri,est

Where

Ri + 1,adj = Adjusted value of R for use in generating RINs 
          in month the second month i + 1.
Ri + 1,calc = Calculated value of R in second month i + 1 by 
          applying a radiocarbon dating test method to a composite 
          sample of fuel.
Ri,est = Estimate of R for the first month i.

    (10)(i) For purposes of this section, electricity that is only 
distributed via a closed, private, non-commercial system is considered 
renewable fuel and RINs may be generated if all of the following apply:
    (A) The electricity is produced from renewable biomass and qualifies 
for a D code in Table 1 to this section or has received approval for use 
of a D code by EPA.
    (B) The RIN generator has documentation for the sale, if applicable, 
and use of a specific quantity of renewable electricity as 
transportation fuel, or has obtained affidavits from all parties selling 
or using the electricity as transportation fuel.
    (C) The electricity is used as a transportation fuel and for no 
other purposes.
    (ii) RIN generators may only generate RINs for renewable CNG/LNG 
produced from biogas that is distributed via a closed, private, non-
commercial system if all the following requirements are met:
    (A) The renewable CNG/LNG was produced from renewable biomass under 
an approved pathway.
    (B) The RIN generator has entered into a written contract for the 
sale or use of a specific quantity of renewable CNG/LNG for use as 
transportation fuel, or has obtained affidavits from all parties selling 
or using the renewable CNG/LNG as transportation fuel.
    (C) The renewable CNG/LNG was used as transportation fuel and for no 
other purpose.
    (D) The biogas was introduced into the closed, private, non-
commercial system no later and the renewable CNG/LNG produced from the 
biogas was used as transportation fuel no later than December 31, 2024.
    (E) RINs may only be generated on biomethane content of the 
renewable CNG/LNG used as transportation fuel.
    (iii) A producer of electricity that is generated by co-firing a 
combination of renewable biomass and fossil fuel may generate RINs only 
for the portion attributable to the renewable biomass, using the 
procedure described in paragraph (f)(4) of this section.
    (11)(i) For purposes of this section, electricity that is introduced 
into a commercial distribution system (transmission grid) is considered 
renewable fuel for which RINs may be generated if all of the following 
apply:
    (A) The electricity is produced from renewable biomass and qualifies 
for a D code in Table 1 of this section or has received approval for use 
of a D code by EPA.
    (B) The RIN generator has documentation for the sale and use of a 
specific quantity of renewable electricity as transportation fuel, or 
has obtained affidavits from all parties selling or using the 
electricity as transportation fuel.
    (C) The quantity of electricity for which RINs were generated was 
sold for use as transportation fuel and for no other purpose.
    (D) The renewable electricity was loaded onto and withdrawn from a 
physically connected transmission grid.
    (E) The amount of electricity sold for use as transportation fuel 
corresponds to the amount of electricity derived from biogas that was 
placed into the commercial distribution system.
    (F) No other party relied upon the renewable electricity for the 
creation of RINs.
    (ii) RINs for renewable CNG/LNG produced from RNG that is introduced 
into a commercial distribution system may only be generated if all the 
following requirements are met:
    (A) The renewable CNG/LNG was produced from renewable biomass and 
qualifies for a D code in an approved pathway.
    (B) The RIN generator has entered into a written contract for the 
sale or use of a specific quantity of RNG, taken from a commercial 
distribution system (e.g., physically connected pipeline, barge, truck, 
rail), for use as

[[Page 168]]

transportation fuel, or has obtained affidavits from all parties selling 
or using the RNG taken from a commercial distribution system as 
transportation fuel.
    (C) The renewable CNG/LNG produced from the RNG was sold for use as 
transportation fuel and for no other purpose.
    (D) The RNG was injected into and withdrawn from the same commercial 
distribution system.
    (E) The RNG was withdrawn from the commercial distribution system in 
a manner and at a time consistent with the transport of the RNG between 
the injection and withdrawal points.
    (F) The volume of RNG injected into the commercial distribution 
system and the volume of RNG withdrawn are measured by continuous 
metering.
    (G) The volume of renewable CNG/LNG sold for use as transportation 
fuel corresponds to the volume of RNG that was injected into and 
withdrawn from the commercial distribution system.
    (H) No other party relied upon the volume of biogas, RNG, or 
renewable CNG/LNG for the generation of RINs.
    (I) The RNG was introduced into the commercial distribution system 
no later than December 31, 2024, and the renewable CNG/LNG was used as 
transportation fuel no later than December 31, 2024.
    (J) RINs may only be generated on biomethane content of the biogas, 
treated biogas, RNG, or renewable CNG/LNG.
    (K)(1) On or after January 1, 2025, RINs may only be generated for 
RNG injected into a natural gas commercial pipeline system for use as 
transportation fuel as specified in subpart E of this part.
    (2) RINs may be generated for RNG as specified in subpart E of this 
part prior to January 1, 2025, if all applicable requirements under this 
part are met.
    (iii) For renewable electricity that is generated by co-firing a 
combination of renewable biomass and fossil fuel, the producer may 
generate RINs only for the portion attributable to the renewable 
biomass, using the procedure described in paragraph (f)(4) of this 
section.
    (12) Process heat produced from combustion of biogas or RNG at a 
renewable fuel production facility is considered ``derived from 
biomass'' under an approved pathway if all the following requirements 
are met, as applicable:
    (i) For biogas transported to the renewable fuel production facility 
via a biogas closed distribution system:
    (A) The renewable fuel producer has entered into a written contract 
for the procurement of a specific volume of biogas with a specific heat 
content.
    (B) The volume of biogas was sold to the renewable fuel production 
facility, and to no other facility.
    (C) The volume of biogas injected into the biogas closed 
distribution system and the volume of biogas used as process heat were 
measured under Sec.  80.155.
    (ii) For RNG injected into a natural gas commercial pipeline system 
prior to July 1, 2024:
    (A) The producer has entered into a written contract for the 
procurement of a specific volume of RNG with a specific heat content.
    (B) The volume of RNG was sold to the renewable fuel production 
facility, and to no other facility.
    (C) The volume of RNG was withdrawn from the natural gas commercial 
pipeline system in a manner and at a time consistent with the transport 
of RNG between the injection and withdrawal points.
    (D) The volume of RNG injected into the natural gas commercial 
pipeline system and the volume of RNG withdrawn were measured under 
Sec.  80.155.
    (E) The natural gas commercial pipeline system into which the RNG 
was injected ultimately serves the renewable fuel production facility.
    (iii) Process heat produced from combustion of biogas or RNG is not 
considered produced from renewable biomass if any other party relied 
upon the volume of biogas or RNG for the generation of RINs.
    (iv) For RNG used as process heat on or after July 1, 2024, the 
renewable fuel producer must retire RINs for RNG as specified in Sec.  
80.125(e).
    (13) In order for a renewable fuel production facility to satisfy 
the requirements of the advanced biofuel grain

[[Page 169]]

sorghum pathway, all the following requirements must be met:
    (i) The quantity of electricity used at the site that is purchased 
from the grid must be measured and recorded by continuous metering.
    (ii) All electricity used on-site that is not purchased from the 
grid must be produced on-site from biogas from landfills, waste 
treatment plants, and/or waste digesters.
    (iii) For biogas transported to the renewable fuel production 
facility via a biogas closed distribution system and used as process 
energy, the requirements in paragraph (f)(12)(i) of this section must be 
met.
    (iv)(A) For RNG injected into a commercial distribution system prior 
to July 1, 2024, and used as process energy, the requirements in 
paragraph (f)(12)(ii) of this section must be met.
    (B) For RNG injected into a natural gas commercial pipeline system 
on or after July 1, 2024, and used as process energy, the renewable fuel 
producer must retire RINs for RNG as specified in Sec.  80.125(e).
    (v) The biogas or RNG used as process energy at the renewable fuel 
production facility is not considered ``produced from renewable 
biomass'' under an approved pathway if any other party relied upon the 
volume of biogas or RNG for the generation of RINs.
    (14) A producer or importer of renewable fuel using giant reed 
(Arundo donax) or napier grass (Pennisetum purpureum) as a feedstock may 
generate RINs for that renewable fuel if:
    (i) The feedstock is produced, managed, transported, collected, 
monitored, and processed according to a Risk Mitigation Plan approved by 
EPA under the registration procedures specified in Sec.  
80.1450(b)(1)(x)(A); or,
    (ii) EPA has determined that there is not a significant likelihood 
of spread beyond the planting area of the feedstock used for production 
of the renewable fuel. Any determination that Arundo donax or Pennisetum 
purpureum does not present a significant likelihood of spread beyond the 
planting area must be based upon clear and compelling evidence, 
including information and supporting data submitted by the producer. 
Such a determination must be made by EPA as specified in Sec.  
80.1450(b)(1)(x)(B).
    (15) Application of formulas in paragraph (f)(3)(vi) of this section 
to certain producers generating D3 or D7 RINs. If a producer seeking to 
generate D code 3 or 7 RINs produces a single type of renewable fuel 
using two or more feedstocks or biointermediates converted 
simultaneously, and at least one of the feedstocks or biointermediates 
does not have a minimum 75% average adjusted cellulosic content, one of 
the following additional requirements apply:
    (i) If the producer is using a thermochemical process to convert 
cellulosic biomass into cellulosic biofuel, the producer is subject to 
additional registration requirements under Sec.  80.1450(b)(1)(xiii)(A).
    (ii) If the producer is using any process other than a 
thermochemical process, or is using a combination of processes, the 
producer is subject to additional registration requirements under Sec.  
80.1450(b)(1)(xiii)(B) or (C), and reporting requirements under Sec.  
80.1451(b)(1)(ii)(U), as applicable.
    (16) Renewable fuel produced from crop residue. Producers generating 
RINs for qualifying renewable fuel utilizing crop residue as feedstock 
under Pathway K or Pathway L must meet all of the following conditions 
(in addition to any other applicable requirements):
    (i) Registration requirements under Sec.  80.1450(b)(1)(xv).
    (ii) Reporting requirements under Sec.  80.1451(b)(1)(ii)(V).
    (iii) Recordkeeping requirements under Sec.  80.1454(n).
    (17) Qualifying use demonstration for certain renewable fuels. For 
purposes of this section, any renewable fuel other than ethanol, 
biodiesel, renewable gasoline, or renewable diesel that meets the Grade 
No. 1-D or No. 2-D specification in ASTM D975 (incorporated by 
reference, see Sec.  80.12) is considered renewable fuel and the 
producer or importer may generate RINs for such fuel only if all the 
following apply:
    (i) The fuel is produced from renewable biomass and qualifies to 
generate RINs under an approved pathway.
    (ii) The fuel producer or importer maintains records demonstrating 
that the fuel was produced for use as a

[[Page 170]]

transportation fuel, heating oil or jet fuel by any of the following:
    (A) Blending the renewable fuel into gasoline or distillate fuel to 
produce a transportation fuel, heating oil, or jet fuel that meets all 
applicable standards under this part and 40 CFR part 1090.
    (B) Entering into a written contract for the sale of the renewable 
fuel, which specifies the purchasing party must blend the fuel into 
gasoline or distillate fuel to produce a transportation fuel, heating 
oil, or jet fuel that meets all applicable standards under this part and 
40 CFR part 1090.
    (C) Entering into a written contract for the sale of the renewable 
fuel, which specifies that the fuel must be used in its neat form as a 
transportation fuel, heating oil or jet fuel that meets all applicable 
standards.
    (ii) The fuel was sold for use in or as a transportation fuel, 
heating oil, or jet fuel, and for no other purpose.
    (g) Delayed RIN generation. (1) Parties who produce or import 
renewable fuel may elect to generate delayed RINs to represent renewable 
fuel volumes that have already been transferred to another party if 
those renewable fuel volumes meet all of the following requirements.
    (i) The renewable fuel volumes can be described by a new approved 
pathway that was added after July 1, 2010.
    (A) For new pathways that EPA approves in response to petitions 
submitted pursuant to Sec.  80.1416, complete petitions must be received 
by EPA by January 31, 2011.
    (B) [Reserved]
    (ii) The renewable fuel volumes can be described by a pathway that:
    (A) Is biodiesel that is made from canola oil through 
transesterification using natural gas or biomass for process energy; or
    (B) EPA has determined was in use as of July 1, 2010, for the 
primary purpose of producing transportation fuel, heating oil, or jet 
fuel for commercial sale.
    (iii) The renewable fuel volumes were not designated or intended for 
export from the covered location by the renewable fuel producer or 
importer, and the producer or importer of the renewable fuel volumes 
does not know or have reason to know that the volumes were exported from 
the covered location.
    (2) When a new approved pathway is added, EPA will specify in its 
approval action the effective date on which the new pathway becomes 
valid for the generation of RINs and whether the fuel in question meets 
the requirements of paragraph (g)(1)(ii) of this section.
    (i) The effective date for the pathway describing biodiesel that is 
made from canola oil through transesterification using natural gas or 
biomass for process energy is September 28, 2010.
    (ii) [Reserved]
    (3) Delayed RINs can only be generated to represent renewable fuel 
volumes produced in the covered location or imported into the covered 
location between July 1, 2010, and the earlier of either of the 
following dates:
    (i) The effective date (identified pursuant to paragraph (g)(2) of 
this section) of the new pathway through which the fuel in question was 
produced; or
    (ii) December 31, 2011.
    (4) Delayed RINs must be generated no later than 60 days after the 
effective date (identified pursuant to paragraph (g)(2) of this section) 
of the pathway by which the fuel in question was produced.
    (5) A party authorized pursuant to paragraph (g)(1) of this section 
to generate delayed RINs, and electing to do so, who generated RINs 
pursuant to 80.1426(f)(6) for fuel produced through a pathway described 
in paragraph (g)(1) of this section, and transferred those RINs with 
renewable fuel volumes between July 1, 2010 and the effective date 
(identified pursuant to paragraph (g)(2) of this section) of that 
pathway, must retire a number of gallon-RINs prior to generating delayed 
RINs.
    (i) The number of gallon-RINs retired by a party pursuant to this 
paragraph must not exceed the number of gallon-RINs originally generated 
by the party to represent fuel described in paragraph (g)(1) of this 
section that was produced in the covered location or imported into the 
covered location, and transferred to another party, between July 1, 2010 
and the earlier of either of the following dates:

[[Page 171]]

    (A) The effective date (identified pursuant to paragraph (g)(2) of 
this section) of the new pathway through which the fuel in question was 
produced; or
    (B) December 31, 2011.
    (ii) Retired RINs must have a D code of 6.
    (iii) Retired RINs must have a K code of 2.
    (iv) Retired RINs must have been generated in the same year as the 
gallon-RINs originally generated by the party to represent fuel 
described in paragraph (g)(1) of this section.
    (A) For gallon-RINs originally generated in 2010 to represent fuel 
described in paragraph (g)(1) of this section, the generation year of 
retired RINs shall be 2010.
    (B) For gallon-RINs originally generated in 2011 to represent fuel 
described in paragraph (g)(1) of this section, the generation year of 
retired RINs shall be 2011.
    (6) For parties that retire RINs pursuant to paragraph (g)(5) of 
this section, the number of delayed gallon-RINs generated shall be equal 
to the number of gallon-RINs retired in accordance with paragraph (g)(5) 
of this section.
    (7) A party authorized pursuant to paragraph (g)(1) of this section 
to generate delayed RINs, and electing to do so, who did not generate 
RINs pursuant to Sec.  80.1426(f)(6) for renewable fuel produced in the 
covered location or imported into the covered location between July 1, 
2010 and the effective date (identified pursuant to paragraph (g)(2) of 
this section) of a new pathway for the fuel in question, may generate a 
number of delayed gallon-RINs for that renewable fuel in accordance with 
paragraph (f) of this section.
    (i) The standardized volume of fuel (Vs) used by a party 
to determine the RIN volume (VRIN) under paragraph (f) of 
this section shall be the standardized volume of the fuel described in 
paragraph (g)(1)(i) of this section that was produced in the covered 
location or imported into the covered location by the party, and 
transferred to another party, between July 1, 2010 and the earlier of 
either of the following dates:
    (A) The effective date (identified pursuant to paragraph (g)(2) of 
this section) of the new pathway through which the fuel in question was 
produced; or
    (B) December 31, 2011.
    (ii) [Reserved]
    (8) The renewable fuel for which delayed RINs are generated must be 
described by a pathway that satisfies the requirements of paragraph 
(g)(1) of this section.
    (9) All delayed RINs generated by a renewable fuel producer or 
importer must be generated within EMTS on the same date.
    (10) The generation year of delayed RINs as designated in EMTS shall 
be the year that the renewable fuel volumes they represent were either 
produced or imported into the covered location.
    (i) For renewable fuel volumes produced or imported in 2010, the 
generation year of delayed RINs shall be 2010 and the production date 
specified in EMTS shall be 07/01/2010.
    (ii) For renewable fuel volumes produced or imported in 2011, the 
generation year of delayed RINs shall be 2011 and the production date 
specified in EMTS shall be 01/01/2011.
    (11) Delayed RINs shall be generated as assigned RINs in EMTS with a 
batch number that begins with ``DRN'', and then immediately separated by 
the RIN generator.
    (12) The D code that shall be used in delayed RINs shall be the D 
code which corresponds to the new pathway.
    (13) Except as provided in this paragraph (g), all other provisions 
in this Subpart M that pertain to the identification of fuels for which 
RINs may be generated, the generation and use of RINs, and recordkeeping 
and reporting, are also applicable to delayed RINs.

[[Page 172]]



         Table 1 to Sec.   80.1426--Applicable D Codes for Each Fuel Pathway for Use in Generating RINs
----------------------------------------------------------------------------------------------------------------
                                                                           Production process
                 Fuel type                     Feedstock                      requirements              D-Code
----------------------------------------------------------------------------------------------------------------
     A  Ethanol...................  Corn starch....................  All of the following: Dry mill            6
                                                                      process, using natural gas,
                                                                      biomass, or biogas for
                                                                      process energy and at least
                                                                      two advanced technologies
                                                                      from Table 2 to this section.
     B  Ethanol...................  Corn starch....................  All of the following: Dry mill            6
                                                                      process, using natural gas,
                                                                      biomass, or biogas for
                                                                      process energy and at least
                                                                      one of the advanced
                                                                      technologies from Table 2 to
                                                                      this section plus drying no
                                                                      more than 65% of the
                                                                      distillers grains with
                                                                      solubles it markets annually.
     C  Ethanol...................  Corn starch....................  All of the following: Dry mill            6
                                                                      process, using natural gas,
                                                                      biomass, or biogas for
                                                                      process energy and drying no
                                                                      more than 50% of the
                                                                      distillers grains with
                                                                      solubles it markets annually.
     D  Ethanol...................  Corn starch....................  Wet mill process using biomass            6
                                                                      or biogas for process energy.
     E  Ethanol...................  Starches from crop residue and   Fermentation using natural                6
                                     annual covercrops.               gas, biomass, or biogas for
                                                                      process energy.
     F  Biodiesel, renewable        Soy bean oil; Oil from annual    One of the following:                     4
         diesel, jet fuel and        covercrops; Oil from algae       Transesterification with or
         heating oil.                grown photosynthetically;        without esterification pre-
                                     Biogenic waste oils/fats/        treatment, Esterification, or
                                     greases; Camelina sativa oil;    Hydrotreating; excludes
                                     Distillers corn oil;             processes that co-process
                                     Distillers sorghum oil;          renewable biomass and
                                     Commingled distillers corn oil   petroleum.
                                     and sorghum oil.
     G  Biodiesel, renewable        Canola/Rapeseed oil............  One of the following:                     4
         diesel, jet fuel, and                                        Transesterification using
         heating oil.                                                 natural gas or biomass for
                                                                      process energy, or
                                                                      Hydrotreating; excludes
                                                                      processes that co-process
                                                                      renewable biomass and
                                                                      petroleum.
     H  Biodiesel, renewable        Soy bean oil; Oil from annual    One of the following:                     5
         diesel, jet fuel, and       covercrops; Oil from algae       Transesterification with or
         heating oil.                grown photosynthetically;        without esterification pre-
                                     Biogenic waste oils/fats/        treatment, Esterification, or
                                     greases; Camelina sativa oil;    Hydrotreating; includes only
                                     Distillers corn oil;             processes that co-process
                                     Distillers sorghum oil;          renewable biomass and
                                     Commingled distillers corn oil   petroleum.
                                     and sorghum oil; Canola/
                                     Rapeseed oil.
     I  Naphtha, LPG..............  Camelina sativa oil; Distillers  Hydrotreating.................            5
                                     sorghum oil; Distillers corn
                                     oil; Commingled distillers
                                     corn oil and distillers
                                     sorghum oil; Canola/Rapeseed
                                     oil.
     J  Ethanol...................  Sugarcane......................  Fermentation..................            5
     K  Ethanol...................  Crop residue, slash, pre-        Any process that converts                 3
                                     commercial thinnings and tree    cellulosic biomass to fuel.
                                     residue, switchgrass,
                                     miscanthus, energy cane,
                                     Arundo donax, Pennisetum
                                     purpureum, and separated yard
                                     waste; biogenic components of
                                     separated MSW; cellulosic
                                     components of separated food
                                     waste; and cellulosic
                                     components of annual cover
                                     crops.
     L  Cellulosic diesel, jet      Crop residue, slash, pre-        Any process that converts                 7
         fuel and heating oil.       commercial thinnings and tree    cellulosic biomass to fuel.
                                     residue, switchgrass,
                                     miscanthus, energy cane,
                                     Arundo donax, Pennisetum
                                     purpureum, and separated yard
                                     waste; biogenic components of
                                     separated MSW; cellulosic
                                     components of separated food
                                     waste; and cellulosic
                                     components of annual cover
                                     crops.

[[Page 173]]

 
     M  Renewable Gasoline and      Crop residue, slash, pre-        Catalytic Pyrolysis and                   3
         Renewable Gasoline          commercial thinnings, tree       Upgrading, Gasification and
         Blendstock; Co-Processed    residue, and separated yard      Upgrading, Thermo-Catalytic
         Cellulosic Diesel, Jet      waste; biogenic components of    Hydrodeoxygenation and
         Fuel, and Heating Oil.      separated MSW; cellulosic        Upgrading, Direct Biological
                                     components of separated food     Conversion, Biological
                                     waste; and cellulosic            Conversion and Upgrading
                                     components of annual cover       utilizing natural gas,
                                     crops.                           biogas, and/or biomass as the
                                                                      only process energy sources
                                                                      providing that process used
                                                                      converts cellulosic biomass
                                                                      to fuel; any process
                                                                      utilizing biogas and/or
                                                                      biomass as the only process
                                                                      energy sources which converts
                                                                      cellulosic biomass to fuel.
     N  Naphtha...................  Switchgrass, miscanthus, energy  Gasification and upgrading                3
                                     cane, Arundo donax, and          processes that converts
                                     Pennisetum purpureum.            cellulosic biomass to fuel.
     O  Butanol...................  Corn starch....................  Fermentation; dry mill using              6
                                                                      natural gas, biomass, or
                                                                      biogas for process energy.
     P  Ethanol, renewable diesel,  The non-cellulosic portions of   Any...........................            5
         jet fuel, heating oil,      separated food waste and non-
         and naphtha.                cellulosic components of
                                     annual cover crops.
     Q  Renewable Compressed        Biogas from landfills,           Any...........................            3
         Natural Gas, Renewable      municipal wastewater treatment
         Liquefied Natural Gas,      facility digesters,
         Renewable Electricity.      agricultural digesters, and
                                     separated MSW digesters; and
                                     biogas from the cellulosic
                                     components of biomass
                                     processed in other waste
                                     digesters.
     R  Ethanol...................  Grain Sorghum..................  Dry mill process using biogas             6
                                                                      from landfills, waste
                                                                      treatment plants, and/or
                                                                      waste digesters, and/or
                                                                      natural gas, for process
                                                                      energy.
     S  Ethanol...................  Grain Sorghum..................  Dry mill process, using only              5
                                                                      biogas from landfills, waste
                                                                      treatment plants, and/or
                                                                      waste digesters for process
                                                                      energy and for on-site
                                                                      production of all electricity
                                                                      used at the site other than
                                                                      up to 0.15 kWh of electricity
                                                                      from the grid per gallon of
                                                                      ethanol produced, calculated
                                                                      on a per batch basis.
     T  Renewable Compressed        Biogas from waste digesters....  Any...........................            5
         Natural Gas, Renewable
         Liquefied Natural Gas,
         and Renewable Electricity.
----------------------------------------------------------------------------------------------------------------


            Table 2 to Sec.   80.1426--Advanced Technologies
------------------------------------------------------------------------
 
-------------------------------------------------------------------------
Corn oil fractionation that is applied to at least 90% of the corn used
 to produce ethanol on a calendar year basis.
Corn oil extraction that is applied to the whole stillage and/or
 derivatives of whole stillage and results in recovery of corn oil at an
 annual average rate equal to or greater than 1.33 pounds oil per bushel
 of corn processed into ethanol.
Membrane separation in which at least 90% of ethanol dehydration is
 carried out using a hydrophilic membrane on a calendar year basis.
Raw starch hydrolysis that is used for at least 90% of starch hydrolysis
 used to produce ethanol instead of hydrolysis using a traditional high
 heat cooking process, calculated on a calendar year basis.

[[Page 174]]

 
Combined heat and power such that, on a calendar year basis, at least
 90% of the thermal energy associated with ethanol production (including
 thermal energy produced at the facility and that which is derived from
 an off-site waste heat supplier), exclusive of any thermal energy used
 for the drying of distillers grains and solubles, is used to produce
 electricity prior to being used to meet the process heat requirements
 of the facility.
------------------------------------------------------------------------


[75 FR 14863, Mar. 26, 2010]

    Editorial Note: For Federal Register citations affecting Sec.  
80.1426, see the List of CFR Sections Affected, which appears in the 
Finding Aids section of the printed volume and at www.govinfo.gov.



Sec.  80.1427  How are RINs used to demonstrate compliance?

    (a) Obligated party renewable volume obligations. (1) Except as 
specified in paragraph (b) of this section or Sec.  80.1456, each party 
that is an obligated party and is obligated to meet the Renewable Volume 
Obligations under Sec.  80.1407 must demonstrate pursuant to Sec.  
80.1451(a)(1) that it has retired for compliance purposes a sufficient 
number of RINs to satisfy the following equations:
    (i) Cellulosic biofuel.

([sum]RINNUM)CB,i + ([sum]RINNUM)CB,i-1 = 
RVOCB,i

Where:

([sum]RINNUM)CB,i = Sum of all owned gallon-RINs that are 
          valid for use in complying with the cellulosic biofuel RVO, 
          were generated in year i, and are being applied towards the 
          RVOCB,i, in gallons.
([sum]RINNUM)CB,i-1 = Sum of all owned gallon-RINs that are 
          valid for use in complying with the cellulosic biofuel RVO, 
          were generated in year i-1, and are being applied towards the 
          RVOCB,i, in gallons.
RVOCB,i = The Renewable Volume Obligation for cellulosic 
          biofuel for the obligated party for calendar year i, in 
          gallons, pursuant to Sec.  80.1407.

    (ii) Biomass-based diesel. Except as provided in paragraph (a)(7) of 
this section,

([sum]RINNUM)BBD,i + ([sum]RINNUM)BBD,i-1 = 
RVOBBD,i

Where:

([sum]RINNUM)BBD,i = Sum of all owned gallon-RINs that are 
          valid for use in complying with the biomass-based diesel RVO, 
          were generated in year i, and are being applied towards the 
          RVOBBD,i, in gallons.
([sum]RINNUM)BBD,i-1 = Sum of all owned gallon-RINs that are 
          valid for use in complying with the biomass-based diesel RVO, 
          were generated in year i-1, and are being applied towards the 
          RVOBBD,i, in gallons.
RVOBBD,i = The Renewable Volume Obligation for biomass-based 
          diesel for the obligated party for calendar year i after 2010, 
          in gallons, pursuant to Sec.  80.1407.

    (iii) Advanced biofuel.

([sum]RINNUM)AB,i + ([sum]RINNUM)AB,i-1 = 
RVOAB,i

Where:

([sum]RINNUM)AB,i = Sum of all owned gallon-RINs that are 
          valid for use in complying with the advanced biofuel RVO, were 
          generated in year i, and are being applied towards the 
          RVOAB,i, in gallons.
([sum]RINNUM)AB,i-1 = Sum of all owned gallon-RINs that are 
          valid for use in complying with the advanced biofuel RVO, were 
          generated in year i-1, and are being applied towards the 
          RVOAB,i, in gallons.
RVOAB,i = The Renewable Volume Obligation for advanced 
          biofuel for the obligated party for calendar year i, in 
          gallons, pursuant to Sec.  80.1407.

    (iv) Renewable fuel.

([sum]RINNUM)RF,i + ([sum]RINNUM)RF,i-1 = 
RVORF,i

Where:

([sum]RINNUM)RF,i = Sum of all owned gallon-RINs that are 
          valid for use in complying with the renewable fuel RVO, were 
          generated in year i, and are being applied towards the 
          RVORF,i, in gallons.
([sum]RINNUM)RF,i-1 = Sum of all owned gallon-RINs that are 
          valid for use in complying with the renewable fuel RVO, were 
          generated in year i-1, and are being applied towards the 
          RVORF,i, in gallons.
RVORF,i = The Renewable Volume Obligation for renewable fuel 
          for the obligated party for calendar year i, in gallons, 
          pursuant to Sec.  80.1407.

    (2) RINs that are valid for use in complying with each Renewable 
Volume Obligation are determined by their D codes.
    (i) RINs with a D code of 3 or 7 are valid for compliance with the 
cellulosic biofuel RVO.
    (ii) RINs with a D code of 4 or 7 are valid for compliance with the 
biomass-based diesel RVO.

[[Page 175]]

    (iii) RINs with a D code of 3, 4, 5, or 7 are valid for compliance 
with the advanced biofuel RVO.
    (iv) RINs with a D code of 3, 4, 5, 6, or 7 are valid for compliance 
with the renewable fuel RVO.
    (3)(i) Except as provided in paragraph (a)(3)(ii) of this section, a 
party may use the same RIN to demonstrate compliance with more than one 
RVO so long as it is valid for compliance with all RVOs to which it is 
applied.
    (ii) A cellulosic diesel RIN with a D code of 7 cannot be used to 
demonstrate compliance with both a cellulosic biofuel RVO and a biomass-
based diesel RVO.
    (4) [Reserved]
    (5) The value of ([Sigma]RINNUM)i-1 may not exceed values 
determined by the following inequalities except as provided in paragraph 
(a)(7)(iii) of this section and Sec.  80.1442(d)

([Sigma]RINNUM)CB,i-1 <=0.20 * RVOCB,i
([Sigma]RINNUM)BBD,i-1 <=0.20 * RVOBBD,i
([Sigma]RINNUM)AB,i-1 <=0.20 * RVOAB,i
([Sigma]RINNUM)RF,i-1 <=0.20 * RVORF,i

    (6) Except as provided in paragraph (a)(7) of this section:
    (i) RINs may only be used to demonstrate compliance with the RVOs 
for the calendar year in which they were generated or the following 
calendar year.
    (ii) RINs used to demonstrate compliance in one year cannot be used 
to demonstrate compliance in any other year.
    (7) Biomass-based diesel in 2010.
    (i) Prior to determining compliance with the 2010 biomass-based 
diesel RVO, obligated parties may reduce the value of 
RVOBBD,2010 by an amount equal to the sum of all 2008 and 
2009 RINs that they used for compliance purposes for calendar year 2009 
which have a D code of 2 and an RR code of 15, 16, or 17.
    (ii) For calendar year 2010 only, the following equation shall be 
used to determine compliance with the biomass-based diesel RVO instead 
of the equation in paragraph (a)(1)(ii) of this section

([Sigma]RINNUM)BBD,2010 + ([Sigma]RINNUM)BBD,2009 
+ ([Sigma]RINNUM)BBD,2008 = RVOBBD,2010

Where

([Sigma]RINNUM)BBD,2010 = Sum of all owned gallon-RINs that 
          are valid for use in complying with the biomass-based diesel 
          RVO, were generated in year 2010, and are being applied 
          towards the RVOBBD,2010, in gallons.
([Sigma]RINNUM)BBD,2009 = Sum of all owned gallon-RINs that 
          are valid for use in complying with the biomass-based diesel 
          RVO, were generated in year 2009, have not previously been 
          used for compliance purposes, and are being applied towards 
          the RVOBBD,2010, in gallons.
([Sigma]RINNUM)BBD,2008 = Sum of all owned gallon-RINs that 
          are valid for use in complying with the biomass-based diesel 
          RVO, were generated in year 2008, have not previously been 
          used for compliance purposes, and are being applied towards 
          the RVOBBD,2010, in gallons.
RVOBBD,2010 = The Renewable Volume Obligation for biomass-
          based diesel for the obligated party for calendar year 2010, 
          in gallons, pursuant to Sec.  80.1407 or Sec.  80.1430, as 
          adjusted by paragraph (a)(7)(i) of this section.

    (iii) The values of ([Sigma]RINNUM)2008 and 
([Sigma]RINNUM)2009 may not exceed values determined by both 
of the following inequalities

([Sigma]RINNUM)BBD,2008 <=0.087 * RVOBBD,2010
([Sigma]RINNUM)BBD,2008 + ([Sigma]RINNUM)BBD,2009 
<=0.20 * RVOBBD,2010

    (8) A party may only use a RIN for purposes of meeting the 
requirements of paragraph (a)(1) or (a)(7) of this section if that RIN 
is a separated RIN with a K code of 2 obtained in accordance with 
Sec. Sec.  80.1428 and 80.1429.
    (9) The number of gallon-RINs associated with a given batch-RIN that 
can be used for compliance with the RVOs shall be calculated from the 
following formula:

RINNUM = EEEEEEEE - SSSSSSSS + 1

Where:

RINNUM = Number of gallon-RINs associated with a batch-RIN, where each 
          gallon-RIN represents one gallon of renewable fuel for 
          compliance purposes.
EEEEEEEE = Batch-RIN component identifying the last gallon-RIN 
          associated with the batch-RIN.
SSSSSSSS = Batch-RIN component identifying the first gallon-RIN 
          associated with the batch-RIN.

    (b) Deficit carryovers. (1) An obligated party that fails to meet 
the requirements of paragraph (a)(1) or (a)(7) of

[[Page 176]]

this section for calendar year i is permitted to carry a deficit into 
year i + 1 under the following conditions:
    (i) The party did not carry a deficit into calendar year i from 
calendar year i-1 for the same RVO.
    (ii) The party subsequently meets the requirements of paragraph 
(a)(1) of this section for calendar year i + 1 and carries no deficit 
into year i + 2 for the same RVO.
    (iii) For compliance with the biomass-based diesel RVO in calendar 
year 2011, the deficit which is carried over from 2010 is no larger than 
57% of the party's 2010 biomass-based diesel RVO as determined prior to 
any adjustment applied pursuant to paragraph (a)(7)(i) of this section.
    (iv) The party uses the same compliance approach in year i + 1 as it 
did in year i, as provided in Sec.  80.1406(c)(2).
    (2) A deficit is calculated according to the following formula:

Di = RVOi - [([Sigma]RINNUM)i + 
([Sigma]RINNUM)i-1]

Where:

Di = The deficit, in gallons, generated in calendar year i 
          that must be carried over to year i + 1 if allowed pursuant to 
          paragraph (b)(1) of this section.
RVOi = The Renewable Volume Obligation for the obligated 
          party or exporter of renewable fuel for calendar year i, in 
          gallons.
([Sigma]RINNUM)i = Sum of all acquired gallon-RINs that were 
          generated in year i and are being applied towards the 
          RVOi, in gallons.
([Sigma]RINNUM)i-1 = Sum of all acquired gallon-RINs that 
          were generated in year i-1 and are being applied towards the 
          RVOi, in gallons.
    (c) Exporter Renewable Volume Obligations (ERVOs). (1) Each exporter 
of renewable fuel that is obligated to meet Exporter Renewable Volume 
Obligations under Sec.  80.1430 must demonstrate pursuant to Sec.  
80.1451(a)(1) that is has retired for compliance purposes a sufficient 
number of RINs to meet its ERVOs by the deadline specified in Sec.  
80.1430(f).
    (2) In fulfillment of its ERVOs, each exporter of renewable fuel is 
subject to the provisions of paragraphs (a)(2), (3), (6), and (8) of 
this section.
    (3) No more than 20 percent of the ERVO calculated according to a 
formula at Sec.  80.1430(b) may be fulfilled using RINs generated in the 
year prior to the year in which the RVO was incurred.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26042, May 10, 2010; 79 
FR 42114, July 18, 2014; 85 FR 7076, Feb. 6, 2020; 85 FR 78467, Dec. 4, 
2020; 88 FR 44584, July 12, 2023]



Sec.  80.1428  General requirements for RIN distribution.

    (a) RINs assigned to volumes of renewable fuel or RNG. (1) Except as 
provided in Sec. Sec.  80.1429 and 80.125(d), no person can separate a 
RIN that has been assigned to a volume of renewable fuel or RNG pursuant 
to Sec.  80.1426(e).
    (2) An assigned RIN cannot be transferred to another person without 
simultaneously transferring a volume of renewable fuel or RNG to that 
same person.
    (3) Assigned gallon-RINs with a K code of 1 can be transferred to 
another person based on the following:
    (i) Except for RNG, no more than 2.5 assigned gallon-RINs with a K 
code of 1 can be transferred to another person with every gallon of 
renewable fuel transferred to that same person.
    (ii) For RNG, the transferor of assigned RINs for RNG must transfer 
RINs under Sec.  80.125(c).
    (4)(i) Except for RNG, on each of the dates listed in paragraph 
(a)(4)(ii) of this section in any calendar year, the following equation 
must be satisfied for assigned RINs and volumes of renewable fuel owned 
by a person:

RINd <= Vd * 2.5

Where:

RINd = Total number of assigned gallon-RINs with a K code of 
          1 that are owned on date d.
Vd = Standardized total volume of renewable fuel owned on 
          date d, in gallons, per Sec.  80.1426(f)(8).

    (ii) The applicable dates are March 31, June 30, September 30, and 
December 31.
    (5) Any transfer of ownership of assigned RINs must be documented on 
product transfer documents generated pursuant to Sec.  80.1453.
    (i) The RIN must be recorded on the product transfer document used 
to transfer ownership of the volume of renewable fuel or RNG to another 
person; or

[[Page 177]]

    (ii) The RIN must be recorded on a separate product transfer 
document transferred to the same person on the same day as the product 
transfer document used to transfer ownership of the volume of renewable 
fuel or RNG.
    (b) RINs separated from volumes of renewable fuel or RNG.
    (1) Unless otherwise specified, any person that has registered 
pursuant to Sec.  80.1450 can own a separated RIN.
    (2) Separated RINs can be transferred any number of times.
    (c) RIN expiration. Except as provided in Sec.  80.1427(a)(7), a RIN 
is valid for compliance during the calendar year in which it was 
generated, or the following calendar year. Any RIN that is not used for 
compliance purposes for the calendar year in which it was generated, or 
for the following calendar year, will be considered an expired RIN. 
Pursuant to Sec.  80.1431(a), an expired RIN will be considered an 
invalid RIN and cannot be used for compliance purposes.
    (d) Any batch-RIN can be divided into multiple batch-RINs, each 
representing a smaller number of gallon-RINs, if all of the following 
conditions are met:
    (1) All RIN components other than SSSSSSSS and EEEEEEEE are 
identical for the original parent and newly formed daughter RINs.
    (2) The sum of the gallon-RINs associated with the multiple daughter 
batch-RINs is equal to the gallon-RINs associated with the parent batch-
RIN.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26042, May 10, 2010; 87 
FR 39664, July 1, 2022; 88 FR 44584, July 12, 2023]



Sec.  80.1429  Requirements for separating RINs from volumes of renewable
fuel or RNG.

    (a)(1) Separation of a RIN from a volume of renewable fuel or RNG 
means termination of the assignment of the RIN to a volume of renewable 
fuel or RNG.
    (2) RINs that have been separated from volumes of renewable fuel or 
RNG become separated RINs subject to the provisions of Sec.  80.1428(b).
    (b) A RIN that is assigned to a volume of renewable fuel or RNG can 
be separated from that volume only under one of the following 
conditions:
    (1) Except as provided in paragraphs (b)(7) and (9) of this section 
and Sec.  80.125(d)(3), an obligated party must separate any RINs that 
have been assigned to a volume of renewable fuel if that party owns that 
volume.
    (2) Except as provided in paragraph (b)(6) of this section, any 
party that owns a volume of renewable fuel must separate any RINs that 
have been assigned to that volume once the volume is blended with 
gasoline or fossil-based diesel to produce a transportation fuel, 
heating oil, or jet fuel. A party may separate up to 2.5 RINs per gallon 
of blended renewable fuel.
    (3) Any exporter of renewable fuel must separate any RINs that have 
been assigned to the exported renewable fuel volume. An exporter of 
renewable fuel may separate up to 2.5 RINs per gallon of exported 
renewable fuel.
    (4) Any party that produces, imports, owns, sells, or uses a volume 
of neat renewable fuel, or a blend of renewable fuel and diesel fuel, 
must separate any RINs that have been assigned to that volume of neat 
renewable fuel or that blend if:
    (i) The party designates the neat renewable fuel or blend as 
transportation fuel, heating oil, or jet fuel; and
    (ii) The neat renewable fuel or blend is used without further 
blending, in the designated form, as transportation fuel, heating oil, 
or jet fuel.
    (5)(i) Any party that produces, imports, owns, sells, or uses a 
volume of electricity or biogas for which RINs have been generated in 
accordance with Sec.  80.1426(f) must separate any RINs that have been 
assigned to that volume of renewable electricity or biogas if:
    (A) The party designates the electricity or biogas as transportation 
fuel; and
    (B) The electricity or biogas is used as transportation fuel.
    (ii)(A) Any biogas closed distribution system RIN generator that 
generates RINs for a batch of renewable CNG/LNG under Sec.  80.130(b) 
may only separate RINs that have been assigned to that batch after the 
party demonstrates that the renewable CNG/LNG was used as transportation 
fuel.
    (B) Only an RNG RIN separator may only separate the RINs that have 
been assigned to a volume of RNG after

[[Page 178]]

meeting all applicable requirements in Sec.  80.125(d)(2).
    (6) RINs assigned to a volume of biodiesel can only be separated 
from that volume pursuant to paragraph (b)(2) of this section if such 
biodiesel is blended into diesel fuel at a concentration of 80 volume 
percent biodiesel or less.
    (i) This paragraph (b)(6) shall not apply to biodiesel owned by 
obligated parties or to exported volumes of biodiesel.
    (ii) This paragraph (b)(6) shall not apply to parties meeting the 
requirements of paragraph (b)(4) of this section.
    (7) For RINs that an obligated party generates for renewable fuel 
that has not been blended into gasoline or diesel to produce a 
transportation fuel, heating oil, or jet fuel, the obligated party can 
only separate such RINs from volumes of renewable fuel if the number of 
gallon-RINs separated in a calendar year are less than or equal to a 
limit set as follows:
    (i) For RINs with a D code of 3, the limit shall be equal to 
RVOCB.
    (ii) For RINs with a D code of 4, the limit shall be equal to 
RVOBBD.
    (iii) For RINs with a D code of 7, the limit shall be equal to the 
larger of RVOBBD or RVOCB.
    (iv) For RINs with a D code of 5, the limit shall be equal to 
RVOAB-RVOCB-RVOBBD.
    (v) For RINs with a D code of 6, the limit shall be equal to 
RVORF-RVOAB.
    (8) Small refiners and small refineries may only separate RINs that 
have been assigned to volumes of renewable fuel that the party blends 
into gasoline or diesel to produce transportation fuel, heating oil, or 
jet fuel, or that the party used as transportation fuel, heating oil, or 
jet fuel. This paragraph (b)(8) shall apply only under the following 
conditions:
    (i) During the calendar year in which the party has received a small 
refinery exemption under Sec.  80.1441 or a small refiner exemption 
under Sec.  80.1442; and
    (ii) The party is not otherwise an obligated party during the period 
of time that the small refinery or small refiner exemption is in effect.
    (9) Except as provided in paragraphs (b)(2) through (5) and (8) of 
this section, parties whose non-export renewable volume obligations are 
solely related to the importation of products listed in Sec.  80.1407(c) 
or (e), the addition of blendstocks into a volume of finished gasoline, 
finished diesel fuel, or BOB, or that incur a renewable volume 
obligation (RVO) under Sec.  80.1408, can only separate RINs from 
volumes of renewable fuel if the number of gallon-RINs separated in a 
calendar year is less than or equal to a limit set as follows:
    (i) For RINs with a D code of 3, the limit shall be equal to 
RVOCB.
    (ii) For RINs with a D code of 4, the limit shall be equal to 
RVOBBD.
    (iii) For RINs with a D code of 7, the limit shall be equal to the 
larger of RVOBBD or RVOCB.
    (iv) For RINs with a D code of 5, the limit shall be equal to 
RVOAB-RVOCB-RVOBBD.
    (v) For RINs with a D code of 6, the limit shall be equal to 
RVORF-RVOAB.
    (10) Any party that produces a volume of renewable fuel or RNG may 
separate any RINs that have been generated to represent that volume of 
renewable fuel or RNG if that party retires the separated RINs to 
replace invalid RINs according to Sec.  80.1474.
    (c) The party responsible for separating a RIN from a volume of 
renewable fuel or RNG shall change the K code in the RIN from a value of 
1 to a value of 2 prior to transferring the RIN to any other party.
    (d) Upon and after separation of a RIN from its associated volume of 
renewable fuel or RNG, the separated RIN must be accompanied by a PTD 
pursuant to Sec.  80.1453 when transferred to another party.
    (e) Upon and after separation of a RIN from its associated volume of 
renewable fuel or RNG, product transfer documents used to transfer 
ownership of the volume must meet the requirements of Sec.  80.1453.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26042, May 10, 2010; 77 
FR 1355, Jan. 9, 2012; 79 FR 42115, July 18, 2014; 85 FR 7076, Feb. 6, 
2020; 85 FR 78467, Dec. 4, 2020; 87 FR 39664, July 1, 2022; 88 FR 44585, 
July 12, 2023]



Sec.  80.1430  Requirements for exporters of renewable fuels.

    (a) Any exporter of renewable fuel, whether in its neat form or 
blended shall acquire sufficient RINs to comply

[[Page 179]]

with all applicable Renewable Volume Obligations under paragraphs (b) 
through (e) of this section representing the exported renewable fuel. No 
provision of this section applies to renewable fuel purchased directly 
from the renewable fuel producer and for which the exporter of renewable 
fuel can demonstrate that no RINs were generated through the 
recordkeeping requirements of Sec.  80.1454(a)(6).
    (b) Exporter Renewable Volume Obligations (ERVOs). An exporter of 
renewable fuel shall determine its Exporter Renewable Volume Obligations 
from the volumes of the renewable fuel exported.
    (1) Cellulosic biofuel.

ERVOCB,k = VOLk* EVk

Where:

ERVOCB,k = The Exporter Renewable Volume Obligation for 
          cellulosic biofuel for discrete volume k in gallons.
k = A discrete volume of renewable fuel that the exporter of renewable 
          fuel knows or has reason to know is cellulosic biofuel that is 
          exported in a single shipment.
VOLk = The standardized volume of discrete volume k, in 
          gallons, calculated in accordance with Sec.  80.1426(f)(8).
EVk = The equivalence value associated with discrete volume 
          k.

    (2) Biomass-based diesel.

ERVOBBD,k = VOLk* EVk

Where:

ERVOBBDI,k = The Exporter Renewable Volume Obligation for 
          biomass-based diesel for discrete volume k, in gallons.
k = A discrete volume of renewable fuel that is biodiesel or renewable 
          diesel and is exported in a single shipment.
VOLk = The standardized volume of discrete volume k 
          calculated in accordance with Sec.  80.1426(f)(8).
EVk = The equivalence value associated with discrete volume 
          k.

    (3) Advanced biofuel.

ERVOAB,k = VOLk* EVk

Where:

ERVOAB,k = The Exporter Renewable Volume Obligation for 
          advanced biofuel for discrete volume k, in gallons.
k = A discrete volume of renewable fuel that is advanced biofuel 
          (including biomass-based diesel, renewable diesel, cellulosic 
          biofuel and other advanced biofuel) and is exported in a 
          single shipment.
VOLk = The standardized volume of discrete volume k, in 
          gallons, calculated in accordance with Sec.  80.1426(f)(8).
EVk = The equivalence value associated with discrete volume 
          k.

    (4) Renewable fuel.

ERVORF,i = VOLk* EVk

Where:

ERVORF,i = The Renewable Volume Obligation for renewable fuel 
          for discrete volume k, in gallons.
k = A discrete volume of exported renewable fuel that is exported in a 
          single shipment.
VOLk = The standardized volume of discrete volume k, in 
          gallons, calculated in accordance with Sec.  80.1426(f)(8).
EVk = The equivalence value associated with discrete volume 
          k.

    (c) If the exporter of renewable fuel knows or has reason to know 
that a volume of exported renewable fuel is cellulosic diesel, the 
exporter of renewable fuel must treat the exported volume as either 
cellulosic biofuel or biomass-based diesel when determining his 
Renewable Volume Obligations pursuant to paragraph (b) of this section.
    (d) For the purposes of calculating the Renewable Volume 
Obligations:
    (1) If the equivalence value for a volume of exported renewable fuel 
can be determined pursuant to Sec.  80.1415 based on its composition, 
then the appropriate equivalence value shall be used in the calculation 
of the exporter of renewable fuel's Renewable Volume Obligations under 
paragraph (b) of this section.
    (2) If the category of the exported renewable fuel is known to be 
biomass-based diesel but the composition is unknown, the value of 
EVk shall be 1.5.
    (3) If neither the category nor composition of a volume of exported 
renewable fuel can be determined, the value of EVk shall be 
1.0.
    (e) For renewable fuels that are in the form of a blend at the time 
of export, the exporter of renewable fuel shall determine the volume of 
exported renewable fuel based on one of the following:
    (1) Information from the supplier of the blend of the concentration 
of renewable fuel in the blend.
    (2) Determination of the renewable portion of the blend using Method 
B or Method C of ASTM D6866 (incorporated

[[Page 180]]

by reference, see Sec.  80.12), or an alternative test method as 
approved by the EPA.
    (3) Assuming the maximum concentration of the renewable fuel in the 
blend as allowed by law and/or regulation.
    (f) Each exporter of renewable fuel must fulfill its ERVO for each 
discrete volume of exported renewable fuel within thirty days of export, 
and must demonstrate compliance with its ERVOs pursuant to Sec.  
80.1427(c).
    (g) Each exporter of renewable fuel must fulfill any 2014 ERVOs 
existing as of September 16, 2014 for which RINs have not yet been 
retired by the compliance demonstration deadline for the 2013 compliance 
period, and must demonstrate compliance with such ERVOs pursuant to 
Sec.  80.1427(c).
    (h) Each person meeting the definition of exporter of renewable fuel 
for a particular export transaction is jointly and severally liable for 
completion of the requirements of this section and all associated RIN 
retirement demonstration, registration, reporting, and attest engagement 
obligations under this subpart. However, these requirements for 
exporters of renewable fuel must be met only once for any export 
transaction.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26042, May 10, 2010; 79 
FR 42115, July 18, 2014; 85 FR 7076, Feb. 6, 2020; 87 FR 39665, July 1, 
2022; 88 FR 44585, July 12, 2023]



Sec.  80.1431  Treatment of invalid RINs.

    (a) Invalid RINs. (1) An invalid RIN is a RIN that is any of the 
following:
    (i) A duplicate of a valid RIN.
    (ii) Was based on incorrect volumes or volumes that have not been 
standardized to 60 [deg]F.
    (iii) Has expired, as provided in Sec.  80.1428(c).
    (iv) Was based on an incorrect equivalence value.
    (v) Deemed invalid under Sec.  80.1467(g).
    (vi) Does not represent renewable fuel or RNG.
    (vii) Was assigned an incorrect ``D'' code value under Sec.  
80.1426(f) for the associated volume of fuel.
    (viii) Was generated for fuel that was not used in the covered 
location.
    (ix) Was otherwise improperly generated.
    (x) Was inappropriately separated under Sec.  80.125(d).
    (2) In the event that the same RIN is transferred to two or more 
parties, all such RINs are deemed invalid, unless EPA in its sole 
discretion determines that some portion of these RINs is valid.
    (3) If any RIN generated for a batch of renewable fuel produced 
using a biointermediate is invalid, then all RINs generated for that 
batch of renewable fuel are deemed invalid, unless EPA in its sole 
discretion determines that some portion of those RINs are valid.
    (4) If any RIN generated for a batch of renewable fuel that had RINs 
apportioned through Sec.  80.1426(f)(3) is invalid, then all RINs 
generated for that batch of renewable fuel are deemed invalid, unless 
EPA in its sole discretion determines that some portion of those RINs 
are valid.
    (b) Except as provided in paragraph (c) of this section and Sec.  
80.1473, the following provisions apply in the case of RINs that are 
invalid:
    (1) Upon determination by any party that RINs owned are invalid, the 
party must keep copies and adjust its records, reports, and compliance 
calculations in which the invalid RINs were used. The party must retire 
the invalid RINs in the applicable RIN transaction reports under Sec.  
80.1451(c)(2) for the quarter in which the RINs were determined to be 
invalid.
    (2) Invalid RINs cannot be used to achieve compliance with the 
Renewable Volume Obligations of an obligated party or exporter of 
renewable fuel, regardless of the party's good faith belief that the 
RINs were valid at the time they were acquired.
    (3) Any valid RINs remaining after invalid RINs are retired must 
first be applied to correct the transfer of invalid RINs to another 
party before applying the valid RINs to meet the party's Renewable 
Volume Obligations at the end of the compliance year.
    (c) Improperly generated RINs may be used for compliance provided 
that all the following conditions and requirements are satisfied and the 
RIN generator demonstrates that the conditions and requirements are 
satisfied

[[Page 181]]

through the reporting and recordkeeping requirements set forth below, 
that:
    (1) The number of RINs generated for a batch exceeds the number of 
RINs that should have been properly generated.
    (2) The RINs were improperly generated as a result of a broken 
meter, an inadvertent temperature correction error, or an inadvertent 
administrative error.
    (3) The renewable fuel producer or importer had in place at the time 
the RINs were improperly generated a quality assurance/quality control 
plan designed to ensure that process measuring equipment such as meters 
and temperature probes are properly maintained and to prevent 
inadvertent administrative errors.
    (4) The renewable fuel producer or importer has taken any 
appropriate additional steps to prevent similar violations from 
occurring in the future.
    (5) The improperly generated RINs have been transferred to another 
party.
    (6) The renewable fuel producer or importer has not improperly 
generated RINs for the reasons described in paragraph (c)(2) of this 
section on more than five batches during any calendar year.
    (7) All of the following remedial actions have been implemented 
within 30 days of the EMTS submission date of the improper RIN 
generation:
    (i) The renewable fuel producer or importer retires an equal number 
of valid RINs with the same D Code and RIN year as the properly 
generated RINs, using an EMTS retire code of 110.
    (ii) The renewable fuel producer or importer reports all the 
following information to EPA via EMTS, which EPA may make publicly 
available:
    (A) Company name.
    (B) Company ID.
    (C) Facility name.
    (D) Facility ID.
    (E) The date the renewable fuel was produced.
    (F) The date the RINs were originally generated.
    (G) The number of RINs generated.
    (H) The number of RINs improperly generated.
    (I) RIN year.
    (J) D codes of generated RINs.
    (K) Batch numbers.
    (L) EMTS Transaction ID of the original generation.
    (M) An explanation of how the violation occurred, and why the 
improperly generated RINs meet the criteria in paragraph (c)(2) of this 
section.
    (N) Steps taken to prevent similar violations from occurring in the 
future.
    (O) Information under paragraphs (c)(3), (c)(4), and (c)(5) of this 
section.
    (P) Any additional information that EPA may require.
    (8) The renewable fuel producer or importer maintains all records 
relating to the improper RIN generation and the associated remedial 
actions taken, including but not limited to any of the following:
    (i) All information regarding the generation of invalid RINs, 
including information that is sufficient to demonstrate that the 
improperly generated RINs meet the criteria in paragraph (c)(2) of this 
section.
    (ii) Documents demonstrating that the renewable fuel producer or 
importer has implemented the quality control/quality assurance plan 
required in paragraph (c)(3) of this section, and has taken all 
appropriate additional steps to prevent similar violations from 
occurring in the future.
    (iii) All correspondence with EPA.
    (iv) All EMTS transactions (Generation, Buy, Sell and Retire).
    (v) All Product Transfer Documents (PTDs).
    (d) If EPA determines that a renewable fuel producer improperly 
generated RINs but did not meet the requirements set forth in paragraph 
(c) of this section, then the requirements of paragraph (b) of this 
section apply from the moment that the invalid RINs were generated in 
EMTS. Once the RIN generator has identified improperly generated RINs to 
EPA, then EPA may remove these improperly generated RINs from EMTS.

[75 FR 14863, Mar. 26, 2010, as amended at 77 FR 1355, Jan. 9, 2012; 79 
FR 42115, July 18, 2014; 85 FR 7076, Feb. 6, 2020; 87 FR 39665, July 1, 
2022; 88 FR 44585, July 12, 2023]



Sec.  80.1432  Reported spillage or disposal of renewable fuel.

    (a) A reported spillage or disposal under this subpart means a 
spillage or

[[Page 182]]

disposal of renewable fuel associated with a requirement by a federal, 
state, or local authority to report the spillage or disposal.
    (b) Except as provided in paragraph (c) of this section, in the 
event of a reported spillage or disposal of any volume of renewable 
fuel, the owner of the renewable fuel must retire a number of RINs 
corresponding to the volume of spilled or disposed of renewable fuel 
multiplied by its equivalence value.
    (1) If the equivalence value for the spilled or disposed of volume 
may be determined pursuant to Sec.  80.1415 based on its composition, 
then the appropriate equivalence value shall be used.
    (2) If the equivalence value for a spilled or disposed of volume of 
renewable fuel cannot be determined, the equivalence value shall be 1.0.
    (c) If the owner of a volume of renewable fuel that is spilled or 
disposed of and reported establishes that no RINs were generated to 
represent the volume, then no RINs shall be retired.
    (d) A RIN that is retired under paragraph (b) of this section:
    (1) Must be reported as a retired RIN in the applicable reports 
under Sec.  80.1451.
    (2) May not be transferred to another person or used by any 
obligated party to demonstrate compliance with the party's Renewable 
Volume Obligations.



Sec.  80.1433  [Reserved]



Sec.  80.1434  RIN retirement.

    (a) A RIN must be retired in any of the following cases:
    (1) Demonstrate annual compliance. Except as specified in paragraph 
(b) of this section or Sec.  80.1456, an obligated party required to 
meet the RVO under Sec.  80.1407 must retire a sufficient number of RINs 
to demonstrate compliance with an applicable RVO.
    (2) Exported renewable fuel. Any exporter of renewable fuel that 
incurs an ERVO as described in Sec.  80.1430(a) shall retire RINs 
pursuant to Sec. Sec.  80.1430(b) through (g) and 80.1427(c).
    (3) Volume error correction. A RIN must be retired when it was based 
on incorrect volumes or volumes that have not been standardized to 60 
[deg]F as described in Sec.  80.1426(f)(8).
    (4) Import volume correction. Where the port of entry volume is the 
lesser of the two volumes in Sec.  80.1466(e)(1)(i), the importer shall 
calculate the difference between the number of RINs originally assigned 
by the foreign producer and the number of RINs calculated under Sec.  
80.1426 for the volume of renewable fuel as measured at the port of 
entry, and retire that amount of RINs in accordance with Sec.  
80.1466(k)(4).
    (5) Spillage, leakage, or disposal of renewable fuels. Except as 
provided in Sec.  80.1432(c), in the event that a reported spillage, 
leakage, or disposal of any volume of renewable fuel, the owner of the 
renewable fuel must notify any holder or holders of the attached RINs 
and retire a number of gallon-RINs corresponding to the volume of 
spilled or disposed of renewable fuel multiplied by its equivalence 
value in accordance with Sec.  80.1432(b).
    (6) Contaminated or spoiled fuel. In the event that contamination or 
spoliation of any volume of renewable fuel is reported, the owner of the 
renewable fuel must notify any holder or holders of the attached RINs 
and retire a number of gallon-RINs corresponding to the volume of 
contaminated or spoiled renewable fuel multiplied by its equivalence 
value.
    (i) If the equivalence value for the contaminated or spoiled volume 
may be determined pursuant to Sec.  80.1415 based on its composition, 
then the appropriate equivalence value shall be used.
    (ii) If the equivalence value for a contaminated or spoiled volume 
of renewable fuel cannot be determined, the equivalence value shall be 
1.0.
    (iii) If the owner of a volume of renewable fuel that is 
contaminated or spoiled and reported establishes that no RINs were 
generated to represent the volume, then no gallon-RINs shall be retired.
    (7) Delayed RIN generation. In the event that a party generated a 
delayed RIN as described in Sec.  80.1426(g)(1) through (4), parties 
must retire RINs as described in accordance with Sec.  80.1426(g)(5) and 
(6).
    (8) Invalid RIN. In the case that a RIN is invalid as described in 
Sec.  80.1431(a), the RIN will be considered invalid and must be retired 
as described in Sec.  80.1431(b).

[[Page 183]]

    (9) Potentially invalid RINs. In the case that a RIN is identified 
as a PIR under Sec.  80.1474(b)(1), the PIRs or replacement RINs must be 
retired as described in Sec.  80.1474(b)(2) through (5).
    (10) Replacement. As required by Sec.  80.1431(b) or Sec.  80.1474, 
any party that must replace an invalid RIN or PIR that was used for 
compliance must retire valid RINs to replace the invalid RINs originally 
used for any RVO.
    (11) Used to produce other renewable fuel. Any party that uses 
renewable fuel or RNG to produce other renewable fuel must retire any 
assigned RINs for the volume of the renewable fuel or RNG.
    (12) Expired RINs for RNG. Any party owning RINs assigned to RNG as 
specified in Sec.  80.125(e) must retire the assigned RIN.
    (13) Other. Any other instance identified by EPA.
    (b) In the case that retirement of a RIN is necessary, the following 
provisions apply:
    (1) Any party affected by such retirement must keep copies and 
adjust its records, reports, and compliance calculations in which the 
retired RIN was used.
    (2) The retired RIN must be reported in the applicable reports under 
Sec.  80.1451.
    (3) The retired RIN must be reported in the EPA Moderated 
Transaction System pursuant to Sec.  80.1452(c).
    (4) Where the importer of renewable fuel is required to retire RINs 
under paragraph (a)(5) of this section, the importer must report the 
retired RINs in the applicable reports under Sec. Sec.  80.1451, 
80.1466(k), and 80.1466(m).

[85 FR 7076, Feb. 6, 2020, as amended at 88 FR 44585, July 12, 2023]



Sec.  80.1435  How are RIN holdings and RIN holding thresholds calculated?

    Beginning January 1, 2020, any party that holds RINs must comply 
with the requirements of this section.
    (a) RIN holdings calculation. (1) Each party must calculate daily 
end-of-day separated D6 RIN holdings by aggregating its end-of-day 
separated D6 RIN holdings with the end-of-day separated D6 RIN holdings 
of all corporate affiliates in a corporate affiliate group and use the 
end-of-day separated D6 RIN holdings as specified in paragraph (b) of 
this section.
    (2) Each party must calculate, as applicable, the holdings-to-market 
percentage under paragraph (b)(1) of this section and the holdings-to-
obligation percentage under paragraph (b)(2) of this section quarterly 
in accordance with the schedule specified in Table 1 to Sec.  80.1451.
    (3) For a corporate affiliate group containing at least one 
obligated party that has a holdings-to-market percentage greater than 
3.00 percent for any calendar day in a compliance period, as determined 
under paragraph (b)(1) of this section, each party must calculate the 
corporate affiliate group's holdings-to-obligation percentage as 
specified in paragraph (b)(2) of this section.
    (4) Each party must individually keep copies of all calculations and 
supporting information for separated D6 RIN holding threshold 
calculations required under this section as specified in Sec.  
80.1454(p).
    (b) RIN holding thresholds calculations--(1) Primary test 
calculations. For each day in a compliance period, each party that owns 
RINs must calculate the holdings-to-market percentage for their 
corporate affiliate group using the method specified in paragraph 
(b)(1)(i) or (b)(1)(ii) of this section, as applicable.
    (i) For each day beginning January 1 through March 31, calculate the 
holdings-to-market percentage for a corporate affiliate group as 
follows:

HTMPd = [([Sigma]D6RINd)a/
(CNV_VOLTOT,i * 1.25)] * 100

Where:

HTMPd = The holdings-to-market percentage is the percentage 
          of separated D6 RINs a corporate affiliate group holds on 
          calendar day d relative to the total expected number of 
          separated D6 RINs in the market in compliance period i, in 
          percent.
d = A given calendar day.
i = The compliance period, typically expressed as a calendar year.
a = Individual corporate affiliate in a corporate affiliate group.
([Sigma]D6RINd)a = Sum of the number of separated 
          D6 RINs each individual corporate affiliate a holds at the end 
          of calendar day d, in gallon-RINs.
CNV_VOLTOT,i = The total expected annual volume of 
          conventional renewable fuels for the compliance period i, in 
          gallons.

[[Page 184]]

          Unless otherwise specified, this number is 15 billion gallons.

    (ii) For each day beginning April 1 through December 31, calculate 
the holdings-to-market percentage for a corporate affiliate group as 
follows:

HTMPd = [([Sigma]D6RINd)a/
(CNV_VOLTOT,i)] * 100

Where:

HTMPd = The holdings-to-market percentage is the percentage 
          of separated D6 RINs a corporate affiliate group holds on 
          calendar day d relative to the total expected number of 
          separated D6 RINs in the market in compliance period i, in 
          percent.
d = A given calendar day.
i = The compliance period, typically expressed as a calendar year.
a = Individual corporate affiliate in a corporate affiliate group.
([Sigma]D6RINd)a = Sum of the number of separated 
          D6 RINs each individual corporate affiliate a holds at the end 
          of calendar day d, in gallon-RINs.
CNV_VOLTOT,i = The total expected annual volume of 
          conventional renewable fuels for compliance period i, in 
          gallons. Unless otherwise specified, this number is 15 billion 
          gallons.

    (2) Secondary threshold calculations. For each day in a compliance 
period where a corporate affiliate group is required to calculate with 
the secondary threshold requirement under paragraph (a)(3) of this 
section, each party must calculate the holdings-to-obligation percentage 
for their corporate affiliate group using the methods at paragraph 
(b)(2)(i) or (b)(2)(ii) of this section, as applicable.
    (i) For each day beginning January 1 through March 31, calculate the 
holdings-to-obligation percentage as follows:

HTOPd = [([Sigma]D6RINd)a/
{[([Sigma]CNV_RVOi-1)a + 
([Sigma]CNV_DEFi-1)a + 
([Sigma]CNV_DEFi-2)a] * 1.25{time} ] * 100

Where:

HTOPd = The holdings-to-obligation percentage is the 
          percentage of separated D6 RINs a corporate affiliate group 
          holds on calendar day d relative to their expected separated 
          D6 RIN holdings based on the corporate affiliate group's 
          conventional RVO for compliance period i-1, in percent.
d = A given calendar day.
i = The compliance period, typically expressed as a calendar year.
a = Individual corporate affiliate in a corporate affiliate group.
([Sigma]D6RINd)a = Sum of the number of separated 
          D6 RINs each individual corporate affiliate a holds on 
          calendar day d, in gallon-RINs.
([Sigma]CNV_RVOi-1)a = Sum of the conventional 
          RVOs for each individual corporate affiliate a for compliance 
          period i-1 as calculated in paragraph (b)(2)(iii) of this 
          section, in gallon-RINs.
([Sigma]CNV_DEFi-1)a = Sum of the conventional 
          deficits for each individual corporate affiliate a as 
          calculated in paragraph (b)(2)(iv) of this section for 
          compliance period i-1, in gallon-RINs.
([Sigma]CNV_DEFi-2)a = Sum of the conventional 
          deficits for each individual corporate affiliate a as 
          calculated in paragraph (b)(2)(iv) of this section for 
          compliance period i-2, in gallon-RINs.

    (ii) For each day beginning April 1 through December 31, calculate 
the holdings-to-obligation percentage as follows:

HTOPd = {([Sigma]D6RINd)a/
[([Sigma]CNV_RVOi-1)a + 
([Sigma]CNV_DEFi-1)a]{time}  * 100

Where:

HTOPd = The holdings-to-obligation percentage is the 
          percentage of separated D6 RINs a corporate affiliate group 
          holds on calendar day d relative to their expected separated 
          D6 RIN holdings based on the corporate affiliate group's 
          conventional RVO for compliance period i-1, in percent.
d = A given calendar day.
i = The compliance period, typically expressed as a calendar year.
a = Individual corporate affiliate in a corporate affiliate group.
([Sigma]D6RINd)a = Sum of the number of separated 
          D6 RINs each individual corporate affiliate a holds on 
          calendar day d, in RIN gallons.
([Sigma]CNV_RVOi-1)a = Sum of the conventional 
          RVOs for each individual corporate affiliate a for compliance 
          period i-1 as calculated in paragraph (b)(2)(iii) of this 
          section, in gallon-RINs.
([Sigma]CNV_DEFi-1)a = Sum of the conventional 
          deficits for each individual corporate affiliate a as 
          calculated in paragraph (b)(2)(iv) of this section for 
          compliance period i-1, in gallon-RINs.

    (iii) As needed to calculate the holdings-to-obligation percentage 
in paragraphs (b)(2)(i) and (b)(2)(ii) of this section, calculate the 
conventional RVO for an individual corporate affiliate as follows:

CNV_RVOi = {[RFStdRF,i * (GVi + 
DVi)]--[RFStdAB,i * (GVi + 
DVi)]{time}  + ERVORF,i


[[Page 185]]


Where:

CNV_RVOi = The conventional RVO for an individual corporate 
          affiliate for compliance period i without deficits, in gallon-
          RINs.
i = The compliance period, typically expressed as a calendar year.
RFStdRF,i = The standard for renewable fuel for compliance 
          period i determined by EPA pursuant to Sec.  80.1405, in 
          percent.
RFStdAB,i = The standard for advanced biofuel for compliance 
          period i determined by EPA pursuant to Sec.  80.1405, in 
          percent.
GVi = The non-renewable gasoline volume, determined in 
          accordance with Sec.  80.1407(b), (c), and (f), which is 
          produced in or imported into the covered location by an 
          obligated party for compliance period i, in gallons.
DVi = The non-renewable diesel volume, determined in 
          accordance with Sec.  80.1407(b), (c), and (f), which is 
          produced in or imported into the covered location by an 
          obligated party for compliance period i, in gallons.
ERVORF,i = The sum of all renewable volume obligations from 
          exporting renewable fuels, as calculated under Sec.  80.1430, 
          by an obligated party for compliance period i, in gallon-RINs.

    (iv) As needed to calculate the holdings-to-obligation percentage in 
paragraphs (b)(2)(i) and (b)(2)(ii) of this section, calculate the 
conventional deficit for an individual corporate affiliate as follows:

CNV_DEFi = DRF,i--DAB,i

Where:

CNV_DEFi = The conventional deficit for an individual 
          corporate affiliate for compliance period i, in gallon-RINs. 
          If a conventional deficit is less than zero, use zero for 
          conventional deficits in paragraphs (b)(2)(i) and (b)(2)(ii) 
          of this section.
i = The compliance period, typically expressed as a calendar year.
DRF,i = Deficit carryover from compliance period i for 
          renewable fuel, in gallon-RINs.
DAB,i = Deficit carryover from compliance period i for 
          advanced biofuel, in gallon-RINs.

    (c) Exceeding the D6 RIN holding thresholds--(1) Primary threshold 
test. A non-obligated party or corporate affiliate group that does not 
contain an obligated party and that has a holdings-to-market percentage 
greater than 3.00 percent for any calendar day in a compliance period, 
as determined under paragraph (b)(1) of this section, has exceeded the 
primary threshold.
    (2) Secondary threshold test. Any party or corporate affiliate group 
required to calculate a holdings-to-obligation percentage under 
paragraph (a)(3) of this section and that has a holdings-to-obligation 
percentage greater than 130.00 percent for any calendar day in a 
compliance period, as determined under paragraph (b)(2) of this section, 
has exceeded the secondary threshold.
    (d) Alternative gasoline and diesel production volume allowance. 
Parties that must calculate the secondary threshold under paragraph 
(b)(2) of this section may use alternative gasoline and diesel 
production volumes if all the following requirements are met:
    (1) The party must have a reasonable basis for using the alternative 
production numbers (e.g., selling or acquiring a refinery or a shutdown 
of a refinery).
    (2) When substituting the alternative production volume for the 
conventional RVO volume, the party must use actual production numbers 
for any completed quarter in the compliance period and extrapolated 
production numbers for any future quarters.
    (3) The party must meet the applicable recordkeeping requirements of 
Sec.  80.1454.
    (4) The party must retain documentation of the reasonable basis and 
the calculations used and must provide these to the auditor conducting 
the attest engagement under Sec.  80.1464.
    (e) Exemption from aggregation requirements. (1) A party may claim 
exemption from the requirement to aggregate D6 RIN holdings for any 
affiliate where one or more of the following apply:
    (i) There is an absence of common trading-level control and 
information sharing with the affiliate.
    (ii) The sharing of information regarding aggregation with the 
affiliate could lead either party to violate state or Federal law, or 
the law of a foreign jurisdiction.
    (iii) The affiliate is exempt from the regulations regarding 
commodities and securities exchanges under 17 CFR 150.4(b)(7).
    (2) A party must retain detailed, explanatory documentation 
supporting its exemption and must provide this documentation to the 
attest auditor

[[Page 186]]

under Sec.  80.1464, and to EPA upon request. Such records include, but 
are not limited to, the following:
    (i) Documents that reflect that the parties do not have knowledge of 
the trading decisions of the other.
    (ii) Documents that demonstrate that there are developed and 
independent trading systems in place.
    (iii) Documents that demonstrate that the parties have and enforce 
written procedures to preclude each from having knowledge of, gaining 
access to, or receiving data about, trades of the other.
    (iv) Documents reflective of the risk management and other systems 
in place.
    (v) Documents that support an exemption under 17 CFR 150.4(b)(7).
    (vi) Any other documents that support the applicability of the 
exemption.

[84 FR 27022, June 10, 2019, as amended at 87 FR 39665, July 1, 2022; 88 
FR 44586, July 12, 2023]



Sec. Sec.  80.1436-80.1439  [Reserved]



Sec.  80.1440  What are the provisions for blenders who handle and blend
less than 250,000 gallons of renewable fuel per year or who handle
renewable fuel blended for fuels under a national security exemption?

    (a)(1) Renewable fuel blenders who handle and blend less than 
250,000 gallons of renewable fuel per year, and who do not have one or 
more reported or unreported Renewable Volume Obligations, are permitted 
to delegate their RIN-related responsibilities to the party directly 
upstream of them who supplied the renewable fuel for blending.
    (2) Renewable fuel blenders who handle and blend renewable fuel for 
parties that have a national security exemption under paragraph (f) of 
this section, or a national security exemption under 40 CFR 1090.605, 
and who do not have one or more reported or unreported Renewable Volume 
Obligations, are permitted to delegate their RIN-related 
responsibilities to the party directly upstream of them who supplied the 
renewable fuel for blending.
    (b) The RIN-related responsibilities that may be delegated directly 
upstream include all of the following:
    (1) The RIN separation requirements of Sec.  80.1429.
    (2) The reporting requirements of Sec.  80.1451.
    (3) The recordkeeping requirements of Sec.  80.1454.
    (4) The attest engagement requirements of Sec.  80.1464.
    (c) For upstream delegation of RIN-related responsibilities, both 
parties must agree on the delegation, and a quarterly written statement 
signed by both parties must be included with the reporting party's 
reports under Sec.  80.1451.
    (1) Both parties must keep copies of the signed quarterly written 
statement agreeing to the upward delegation for 5 years.
    (2) Parties delegating their RIN responsibilities upward shall keep 
copies of their registration forms as submitted to EPA.
    (3) A renewable fuel blender who delegates its RIN-related 
responsibilities under this section will remain liable for any violation 
of this subpart M associated with its renewable fuel blending 
activities.
    (d) Renewable fuel blenders who handle and blend less than 250,000 
gallons of renewable fuel per year and delegate their RIN-related 
responsibilities under paragraph (b) of this section must register 
pursuant to Sec.  80.1450(e), and may not own RINs.
    (e) Renewable fuel blenders who handle and blend less than 250,000 
gallons of renewable fuel per year and who do not opt to delegate their 
RIN-related responsibilities, or own RINs, will be subject to all 
requirements stated in paragraph (b) of this section, and all other 
applicable requirements of this subpart M.
    (f) The requirements described in paragraph (b) of this section may 
be delegated directly upstream for renewable fuel (neat or blended) that 
is produced, imported, sold, offered for sale, supplied, offered for 
supply, stored, dispensed, or transported for use in any of the 
following:
    (1) Tactical military vehicles, engines, or equipment having an EPA 
national security exemption from emission standards under 40 CFR 
85.1708, 89.908, 92.908, 94.908, 1042.635, or 1068.225.

[[Page 187]]

    (2) Tactical military vehicles, engines, or equipment that are not 
subject to a national security exemption from vehicle or engine 
emissions standards as described in paragraph (f)(1) of this section 
but, for national security purposes (for purposes of readiness for 
deployment overseas), need to be fueled on the same transportation fuel, 
heating oil, or jet fuel as the vehicles, engines, or equipment for 
which EPA has granted such a national security exemption.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26042, May 10, 2010; 79 
FR 42162, July 18, 2014; 85 FR 7077, Feb. 6, 2020; 85 FR 78467, Dec. 4, 
2020]



Sec.  80.1441  Small refinery exemption.

    (a)(1) Transportation fuel produced at a refinery by a refiner is 
exempt from January 1, 2010, through December 31, 2010, from the 
renewable fuel standards of Sec.  80.1405, and the owner or operator of 
the refinery is exempt from the requirements that apply to obligated 
parties under this subpart M for fuel produced at the refinery if the 
refinery meets the definition of ``small refinery'' in Sec.  80.2 for 
calendar year 2006.
    (2) The exemption of paragraph (a)(1) of this section shall apply 
unless a refiner chooses to waive this exemption (as described in 
paragraph (f) of this section), or the exemption is extended (as 
described in paragraph (e) of this section).
    (3) [Reserved]
    (4) This exemption shall only apply to refineries that process crude 
oil through refinery processing units.
    (5) The small refinery exemption is effective immediately, except as 
specified in paragraph (b)(3) of this section.
    (b)(1) A refiner owning a small refinery must submit a verification 
letter to EPA containing all of the following information:
    (i) The annual average aggregate daily crude oil throughput for the 
period January 1, 2006 through December 31, 2006 (as determined by 
dividing the aggregate throughput for the calendar year by the number 
365).
    (ii) A letter signed by the president, chief operating or chief 
executive officer of the company, or his/her designee, stating that the 
information contained in the letter is true to the best of his/her 
knowledge, and that the refinery was small as of December 31, 2006.
    (iii) Name, address, phone number, facsimile number, and e-mail 
address of a corporate contact person.
    (2) Verification letters must be submitted by July 1, 2010 to one of 
the addresses listed in paragraph (h) of this section.
    (c) If EPA finds that a refiner provided false or inaccurate 
information regarding a refinery's crude throughput (pursuant to 
paragraph (b)(1)(i) of this section) in its small refinery verification 
letter, the exemption will be void as of the effective date of these 
regulations.
    (d) If a refiner is complying on an aggregate basis for multiple 
refineries, any such refiner may exclude from the calculation of its 
Renewable Volume Obligations (under Sec.  80.1407) transportation fuel 
from any refinery receiving the small refinery exemption under paragraph 
(a) of this section.
    (e)(1) The exemption period in paragraph (a) of this section shall 
be extended by EPA for a period of not less than two additional years if 
a study by the Secretary of Energy determines that compliance with the 
requirements of this subpart would impose a disproportionate economic 
hardship on a small refinery.
    (2) A refiner may petition EPA for an extension of its small 
refinery exemption, based on disproportionate economic hardship, at any 
time.
    (i) A petition for an extension of the small refinery exemption must 
specify the factors that demonstrate a disproportionate economic 
hardship and must provide a detailed discussion regarding the hardship 
the refinery would face in producing transportation fuel meeting the 
requirements of Sec.  80.1405 and the date the refiner anticipates that 
compliance with the requirements can reasonably be achieved at the small 
refinery.
    (ii) EPA shall act on such a petition not later than 90 days after 
the date of receipt of the petition.
    (iii) In order to qualify for an extension of its small refinery 
exemption, a refinery must meet the definition of ``small refinery'' in 
Sec.  80.2 for the most recent full calendar year prior to seeking an 
extension and must be projected

[[Page 188]]

to meet the definition of ``small refinery'' in Sec.  80.2 for the year 
or years for which an exemption is sought. Failure to meet the 
definition of small refinery for any calendar year for which an 
exemption was granted would invalidate the exemption for that calendar 
year.
    (f) At any time, a refiner with a small refinery exemption under 
paragraph (a) of this section may waive that exemption upon notification 
to EPA.
    (1) A refiner's notice to EPA that it intends to waive its small 
refinery exemption must be received by November 1 to be effective in the 
next compliance year.
    (2) The waiver will be effective beginning on January 1 of the 
following calendar year, at which point the transportation fuel produced 
at that refinery will be subject to the renewable fuels standard of 
Sec.  80.1405 and the owner or operator of the refinery shall be subject 
to all other requirements that apply to obligated parties under this 
Subpart M.
    (3) The waiver notice must be sent to EPA at one of the addresses 
listed in paragraph (h) of this section.
    (g) A refiner that acquires a refinery from either an approved small 
refiner (as specified in Sec.  80.1442(a)) or another refiner with an 
approved small refinery exemption under paragraph (a) of this section 
shall notify EPA in writing no later than 20 days following the 
acquisition.
    (h) Verification letters under paragraph (b) of this section, 
petitions for small refinery hardship extensions under paragraph (e) of 
this section, and small refinery exemption waiver notices under 
paragraph (f) of this section shall be sent to the attention of ``RFS 
Program'' to the address in Sec.  80.10(a).

[75 FR 14863, Mar. 26, 2010, as amended at 79 FR 42163, July 18, 2014; 
85 FR 7077, Feb. 6, 2020; 85 FR 78467, Dec. 4, 2020; 88 FR 44586, July 
12, 2023]



Sec.  80.1442  What are the provisions for small refiners under the
RFS program?

    (a)(1) To qualify as a small refiner under this section, a refiner 
must meet all of the following criteria:
    (i) The refiner produced transportation fuel at its refineries by 
processing crude oil through refinery processing units from January 1, 
2006 through December 31, 2006.
    (ii) The refiner employed an average of no more than 1,500 people, 
based on the average number of employees for all pay periods for 
calendar year 2006 for all subsidiary companies, all parent companies, 
all subsidiaries of the parent companies, and all joint venture 
partners.
    (iii) The refiner had a corporate-average crude oil capacity less 
than or equal to 155,000 barrels per calendar day (bpcd) for 2006.
    (2) [Reserved]
    (b)(1) The small refiner exemption in paragraph (c) of this section 
is effective immediately, except as provided in paragraph (b)(5) of this 
section, provided that all requirements of this section are satisfied.
    (2) Refiners who qualify for the small refiner exemption under 
paragraph (a) of this section must submit a verification letter (and any 
other relevant information) to EPA by July 1, 2010. The small refiner 
verification letter must include all of the following information for 
the refiner and for all subsidiary companies, all parent companies, all 
subsidiaries of the parent companies, and all joint venture partners:
    (i) A listing of the name and address of each company location where 
any employee worked for the period January 1, 2006 through December 31, 
2006.
    (ii) The average number of employees at each location based on the 
number of employees for each pay period for the period January 1, 2006 
through December 31, 2006.
    (iii) The type of business activities carried out at each location.
    (iv) For joint ventures, the total number of employees includes the 
combined employee count of all corporate entities in the venture.
    (v) For government-owned refiners, the total employee count includes 
all government employees.
    (vi) The total corporate crude oil capacity of each refinery as 
reported to the Energy Information Administration (EIA) of the U.S. 
Department of Energy (DOE), for the period January 1, 2006 through 
December 31, 2006. The

[[Page 189]]

information submitted to EIA is presumed to be correct. In cases where a 
company disagrees with this information, the company may petition EPA 
with appropriate data to correct the record when the company submits its 
application.
    (vii) The verification letter must be signed by the president, chief 
operating or chief executive officer of the company, or his/her 
designee, stating that the information is true to the best of his/her 
knowledge, and that the company owned the refinery as of December 31, 
2006.
    (viii) Name, address, phone number, facsimile number, and e-mail 
address of a corporate contact person.
    (3) In the case of a refiner who acquires or reactivates a refinery 
that was shutdown or non-operational between January 1, 2005 and January 
1, 2006, the information required in paragraph (b)(2) of this section 
must be provided for the time period since the refiner acquired or 
reactivated the refinery.
    (c) Small refiner temporary exemption. (1) Transportation fuel 
produced by a small refiner pursuant to paragraph (b)(1) of this section 
is exempt from January 1, 2010, through December 31, 2010, from the 
renewable fuel standards of Sec.  80.1405 and the requirements that 
apply to obligated parties under this subpart if the refiner meets all 
the criteria of paragraph (a)(1) of this section.
    (2) The small refiner exemption shall apply to a small refiner 
pursuant to paragraph (b)(1) of this section or an approved foreign 
small refiner unless that refiner chooses to waive this exemption (as 
described in paragraph (d) of this section).
    (d)(1) A refiner may, at any time, waive the small refiner exemption 
under paragraph (c) of this section upon notification to EPA.
    (2) A refiner's notice to EPA that it intends to waive the small 
refiner exemption must be received by November 1 of a given year in 
order for the waiver to be effective for the following calendar year. 
The waiver will be effective beginning on January 1 of the following 
calendar year, at which point the refiner will be subject to the 
renewable fuel standards of Sec.  80.1405 and the requirements that 
apply to obligated parties under this subpart.
    (3) The waiver must be sent to EPA at one of the addresses listed in 
paragraph (i) of this section.
    (e) Refiners who qualify as small refiners under this section and 
subsequently fail to meet all of the qualifying criteria as set out in 
paragraph (a) of this section are disqualified as small refiners of 
January 1 of the next calendar year, except as provided under paragraphs 
(d) and (e)(2) of this section.
    (1) In the event such disqualification occurs, the refiner shall 
notify EPA in writing no later than 20 days following the disqualifying 
event.
    (2) Disqualification under this paragraph (e) shall not apply in the 
case of a merger between two approved small refiners.
    (f) If EPA finds that a refiner provided false or inaccurate 
information in its small refiner status verification letter under this 
subpart M, the refiner will be disqualified as a small refiner as of the 
effective date of this subpart.
    (g) Any refiner that acquires a refinery from another refiner with 
approved small refiner status under paragraph (a) of this section shall 
notify EPA in writing no later than 20 days following the acquisition.
    (h) Extensions of the small refiner temporary exemption. (1) A small 
refiner may apply for an extension of the temporary exemption of 
paragraph (c)(1) of this section based on a showing of all the 
following:
    (i) Circumstances exist that impose disproportionate economic 
hardship on the refiner and significantly affects the refiner's ability 
to comply with the RFS standards.
    (ii) The refiner has made best efforts to comply with the 
requirements of this subpart.
    (2) A refiner must apply, and be approved, for small refiner status 
under this section.
    (3) A small refiner's hardship application must include all the 
following information:
    (i) A plan demonstrating how the refiner will comply with the 
requirements of Sec.  80.1405 (and all other requirements of this 
subpart applicable to obligated parties), as expeditiously as possible.

[[Page 190]]

    (ii) A detailed description of the refinery configuration and 
operations including, at a minimum, all the following information:
    (A) The refinery's total crude capacity.
    (B) Total crude capacity of any other refineries owned by the same 
entity.
    (C) Total volume of gasoline and diesel produced at the refinery.
    (D) Detailed descriptions of efforts to comply.
    (E) Bond rating of the entity that owns the refinery.
    (F) Estimated investment needed to comply with the requirements of 
this subpart M.
    (4) A small refiner shall notify EPA in writing of any changes to 
its situation between approval of the extension application and the end 
of its approved extension period.
    (5) EPA may impose reasonable conditions on extensions of the 
temporary exemption, including reducing the length of such an extension, 
if conditions or situations change between approval of the application 
and the end of the approved extension period.
    (i) Small refiner status verification letters, small refiner 
exemption waivers, or applications for extensions of the small refiner 
temporary exemption under this section must be sent to the attention of 
``RFS Program'' to the address in Sec.  80.10(a).

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26042, May 10, 2010; 85 
FR 7077, Feb. 6, 2020; 85 FR 78467, Dec. 4, 2020; 88 FR 44586, July 12, 
2023]



Sec.  80.1443  What are the opt-in provisions for noncontiguous states 
and territories?

    (a) Alaska or a United States territory may petition EPA to opt-in 
to the program requirements of this subpart.
    (b) EPA will approve the petition if it meets the provisions of 
paragraphs (c) and (d) of this section.
    (c) The petition must be signed by the Governor of the state or his 
authorized representative (or the equivalent official of the territory).
    (d)(1) A petition submitted under this section must be received by 
EPA by November 1 for the state or territory to be included in the RFS 
program in the next calendar year.
    (2) A petition submitted under this section should be sent to the 
attention of ``RFS Program'' to the address in Sec.  80.10(a).
    (e) Upon approval of the petition by EPA:
    (1) EPA shall calculate the standards for the following year, 
including the total gasoline and diesel fuel volume for the state or 
territory in question.
    (2) Beginning on January 1 of the next calendar year, all gasoline 
and diesel fuel refiners and importers in the state or territory for 
which a petition has been approved shall be obligated parties.
    (3) Beginning on January 1 of the next calendar year, all renewable 
fuel producers in the state or territory for which a petition has been 
approved shall, pursuant to Sec.  80.1426(a)(2), be required to generate 
RINs and comply with other requirements of this subpart M that are 
applicable to producers of renewable fuel.

[75 FR 14863, Mar. 26, 2010, as amended at 85 FR 7077, Feb. 6, 2020; 88 
FR 44586, July 12, 2023]



Sec.  80.1444  Alternative RIN retirement schedule for small refineries.

    (a) Applicability. The provisions of this section apply to the 
following compliance years:
    (1) 2020.
    (2) [Reserved]
    (b) Eligibility. Any obligated party that has a refinery that meets 
the definition of small refinery in Sec.  80.1401 for the applicable 
compliance year in paragraph (a) of this section (hereinafter the 
``applicable compliance year'') is eligible to use the provisions of 
this section for each small refinery it operates (hereinafter the 
``small refinery'').
    (c) Treatment of RVOs. (1) In lieu of retiring sufficient RINs under 
Sec.  80.1427(a) to demonstrate compliance with the small refinery's 
RVOs for the applicable compliance year by the applicable compliance 
deadline, the obligated party must meet all the requirements of this 
section and all other applicable requirements of this subpart.
    (2) If the obligated party does not meet all of the requirements in 
this section, the obligated party is subject to the requirements of 
Sec.  80.1427(a).

[[Page 191]]

    (d) Individual facility compliance. (1) If the obligated party 
carries a deficit into the applicable compliance year from the previous 
compliance year, the obligated party must comply with its RVOs for each 
refinery it operates on an individual basis (as specified in Sec.  
80.1406(c)) for both the previous compliance year and the applicable 
compliance year.
    (2) If the obligated party does not carry a deficit into the 
applicable compliance year from the previous compliance year, the 
obligated party must comply with its RVOs for each refinery it operates 
on an individual basis (as specified in Sec.  80.1406(c)) for the 
applicable compliance year.
    (e) Compliance report submission and notification. The obligated 
party must do all the following by the annual compliance reporting 
deadline specified in Sec.  80.1451(f)(1)(i) for the applicable 
compliance year (hereinafter the ``applicable compliance deadline''):
    (1) Submit an annual compliance report for the small refinery for 
the applicable compliance year.
    (2) Notify EPA in a letter signed by the responsible corporate 
officer (RCO) or RCO delegate, as specified at 40 CFR 1090.800(d), of 
its intent to use the provisions of this section for the small refinery.
    (f) Alternative RIN retirement schedule. The obligated party must 
retire sufficient RINs to satisfy the minimum percentages of each and 
every RVO for the applicable compliance year (as determined under Sec.  
80.1407(a)) according to the following RIN retirement schedule:
    (1) For the 2020 compliance year:

    Table 1 to Paragraph (f)(1)--2020 Compliance Year RIN Retirement
                                Schedule
------------------------------------------------------------------------
   Minimum 2020 RVOs percentage RIN
              retirement                            Deadline
------------------------------------------------------------------------
20...................................  February 1, 2023.
40...................................  May 1, 2023.
60...................................  August 1, 2023.
80...................................  November 1, 2023.
100..................................  February 1, 2024.
------------------------------------------------------------------------

    (2) [Reserved]
    (g) RIN vintages and retirements. (1) The obligated party may retire 
for compliance any valid RINs at the time of retirement towards the 
small refinery's RVOs for the applicable compliance year and is exempt 
from the requirements in Sec.  80.1427(a)(6)(i).
    (2) The obligated party must not retire for compliance any prior-
year RINs for the small refinery's RVOs after the applicable compliance 
deadline.
    (h) Deficit carry-forward for subsequent compliance years. The 
obligated party may not carry forward any deficit under Sec.  80.1427(b) 
for the small refinery for compliance years after the applicable 
compliance year until it has retired sufficient RINs to satisfy each and 
every RVO for the applicable compliance year in its entirety.
    (i) Forms and procedures. The obligated party must submit annual 
compliance reports and retire RINs under this section using forms and 
procedures specified by EPA under Sec. Sec.  80.1451(j) and 80.1452(d).

[87 FR 54166, Sept. 2, 2022]



Sec. Sec.  80.1445-80.1448  [Reserved]



Sec.  80.1449  What are the Production Outlook Report requirements?

    (a) By June 1 of each year (September 1 for the report due in 2010), 
a registered renewable fuel producer or importer must submit and an 
unregistered renewable fuel producer may submit all of the following 
information for each of its facilities, as applicable, to EPA:
    (1) The type, or types, of renewable fuel expected to be produced or 
imported at each facility owned by the renewable fuel producer or 
importer.
    (2) The volume of each type of renewable fuel expected to be 
produced or imported at each facility.
    (3) The number of RINs expected to be generated by the renewable 
fuel producer or importer for each type of renewable fuel.
    (4) Information about all the following:
    (i) Existing and planned production capacity.
    (ii) Long-range plans for expansion of production capacity at 
existing facilities or construction of new facilities.
    (iii) Feedstocks, biointermediates, and production processes to be 
used at each production facility.

[[Page 192]]

    (iv) Changes to the facility that would raise or lower emissions of 
any greenhouse gases from the facility.
    (5) For expanded production capacity that is planned or underway at 
each existing facility, or new production facilities that are planned or 
underway, information on all the following, as available:
    (i) Strategic planning.
    (ii) Planning and front-end engineering.
    (iii) Detailed engineering and permitting.
    (iv) Procurement and construction.
    (v) Commissioning and startup.
    (6) Whether capital commitments have been made or are projected to 
be made.
    (b) The information listed in paragraph (a) of this section shall 
include the reporting party's best estimates for the five following 
calendar years.
    (c) Production outlook reports must provide an update of the 
progress in each of the areas listed in paragraph (a) of this section in 
comparison to information provided in previous year production outlook 
reports.
    (d) Production outlook reports shall be sent to the attention of 
``RFS Program (Production Output Reports)'' to the address in Sec.  
80.10(a).
    (e) All production outlook reports required under this section shall 
be submitted on forms and following procedures prescribed by EPA.

[75 FR 14863, Mar. 26, 2010, as amended at 77 FR 1356, Jan. 9, 2012; 85 
FR 7077, Feb. 6, 2020; 87 FR 39665, July 1, 2022; 88 FR 44586, July 12, 
2023]



Sec.  80.1450  What are the registration requirements under the RFS
program?

    (a) Obligated parties and exporters. Any obligated party or any 
exporter of renewable fuel must provide EPA with the information 
specified for registration under 40 CFR 1090.805, if such information 
has not already been provided under the provisions of this part. An 
obligated party or an exporter of renewable fuel must receive EPA-issued 
identification numbers prior to engaging in any transaction involving 
RINs. Registration information may be submitted to EPA at any time after 
publication of this rule in the Federal Register, but must be submitted 
and accepted by EPA by July 1, 2010, or 60 days prior to RIN ownership, 
whichever date comes later.
    (b) Producers. Any RIN-generating foreign producer, any non-RIN-
generating foreign producer, any domestic renewable fuel producer that 
generates RINs, or any biointermediate producer that transfers any 
biointermediate for the production of a renewable fuel for RIN 
generation, must provide EPA the information specified under 40 CFR 
1090.805 if such information has not already been provided under the 
provisions of this part, and must receive EPA-issued company and 
facility identification numbers prior to the generation of any RINs for 
their fuel or for fuel made with their ethanol, or prior to the transfer 
of any biointermediate to be used in the production of a renewable fuel 
for which RINs may be generated. Unless otherwise specifically 
indicated, all the following registration information must be submitted 
to EPA at least 60 days prior to the intended generation of RINs or the 
intended transfer of any biointermediate to be used in the production of 
a renewable fuel for which RINs may be generated. Renewable fuel 
producers may generate RINs for a renewable fuel under this part after 
EPA has accepted their registration and they have met all other 
applicable requirements under this part.
    (1) A description of the types of renewable fuels, RNG, ethanol, or 
biointermediates that the producer intends to produce at the facility 
and that the facility is capable of producing without significant 
modifications to the existing facility. For each type of renewable fuel, 
RNG, ethanol, or biointermediate the renewable fuel producer or foreign 
ethanol producer must also provide all the following:
    (i)(A) A list of all the feedstocks and biointermediates the 
facility intends to utilize without significant modification to the 
existing facility.
    (B) A description of the type(s) of renewable biomass that will be 
used as feedstock material to produce the biointermediate, if 
applicable.
    (C) A list of the EPA-issued company and facility registration 
numbers of all

[[Page 193]]

biointermediate producers and biointermediate production facilities that 
will supply biointermediates for renewable fuel production.
    (ii) A description of the facility's renewable fuel, RNG, ethanol, 
or biointermediate production processes, including:
    (A) For registrations indicating production of cellulosic biofuel (D 
codes 3 or 7) from feedstocks other than biogas (including through 
pathways in rows K, L, M, and N of Table 1 to Sec.  80.1426), the 
producer must demonstrate the ability to convert cellulosic components 
of feedstock into fuel by providing all of the following:
    (1) A process diagram with all relevant unit processes labeled and a 
designation of which unit process is capable of performing cellulosic 
treatment, including required inputs and outputs at each step.
    (2) A description of the cellulosic biomass treatment process, 
including required inputs and outputs used at each step.
    (3) A description of the mechanical, chemical and biochemical 
mechanisms by which cellulosic materials can be converted to biofuel 
products.
    (B) For registrations indicating the production of any 
biointermediate, the biointermediate producer must provide all of the 
following:
    (1) For each biointermediate production facility, the company name, 
EPA company registration number, and EPA facility registration number of 
the renewable fuel producer and renewable fuel production facility at 
which the biointermediate produced from the biointermediate production 
facility will be transferred and used.
    (2) Copies of documents and corresponding calculations demonstrating 
production capacity of each biointermediate produced at the 
biointermediate production facility.
    (3) For each type of feedstock that the biointermediate producer 
intends to process the biointermediate producer must provide all the 
following:
    (i) A list of all the feedstocks the facility intends to utilize 
without significant modification to the existing facility.
    (ii) A description of the type(s) of renewable biomass that will be 
used as feedstock material to produce the biointermediate.
    (4) The approved pathway(s) that the biointermediate could be used 
in to produce renewable fuel.
    (iii) The type(s) of co-products produced with each type of 
renewable fuel, ethanol, or biointermediate.
    (iv) A process heat fuel supply plan that includes all of the 
following:
    (A) For all process heat fuel, provide all the following 
information:
    (1) Each type of process heat fuel used at the facility to produce 
the renewable fuel, ethanol, or biointermediate.
    (2) The name and address of the company supplying each process heat 
fuel to the renewable fuel facility, foreign ethanol facility, or 
biointermediate production facility.
    (B) For biogas used for process heat, provide all the following 
information:
    (1) Locations from which the biogas was produced or extracted.
    (2) Name of suppliers of all biogas the producer purchases for use 
for process heat in the facility.
    (3) An affidavit from the biogas supplier stating its intent to 
supply biogas to the renewable fuel producer, foreign ethanol producer, 
or biointermediate producer, and the quantity and energy content of the 
biogas that it intends to provide to the renewable fuel producer or 
foreign ethanol producer.
    (v) The following records that support the facility's baseline 
volume or, for foreign ethanol facilities, their production volume:
    (A) For all facilities except those described in paragraph 
(b)(1)(v)(B) of this section, copies of the most recent applicable air 
permits issued by the U.S. Environmental Protection Agency, state, local 
air pollution control agencies, or foreign governmental agencies and 
that govern the construction and/or operation of the renewable fuel or 
foreign ethanol facility.
    (B) For facilities claiming the exemption described in Sec.  
80.1403(c) or (d):
    (1) Applicable air permits issued by EPA, state, local air pollution 
control agencies, or foreign governmental agencies that govern the 
construction and/or operation of the renewable fuel facility that were:

[[Page 194]]

    (i) Issued or revised no later than December 19, 2007, for 
facilities described in Sec.  80.1403(c); or
    (ii) Issued or revised no later than December 31, 2009, for 
facilities described in Sec.  80.1403(d).
    (2) If the air permits specified in paragraph (b)(1)(v)(B)(1) of 
this section do not specify the maximum rated annual volume output of 
renewable fuel, copies of documents demonstrating the facility's actual 
peak capacity.
    (C) For facilities not claiming the exemption described in Sec.  
80.1403(c) or (d) and that are exempt from air permit requirements or 
for which the maximum rated annual volume output of renewable fuel is 
not specified in their air permits, appropriate documentation 
demonstrating the facility's actual peak capacity or nameplate capacity.
    (D) For all facilities producing renewable electricity or other 
renewable fuel from biogas, submit all relevant information in Sec.  
80.1426(f)(10) or (11), including:
    (1) Copies of all contracts or affidavits, as applicable, that 
follow the track of the biogas/CNG/LNG or renewable electricity from its 
original source, to the producer that processes it into renewable fuel, 
and finally to the end user that will actually use the renewable 
electricity or the renewable CNG/LNG for transportation purposes.
    (2) Specific quantity, heat content, and percent efficiency of 
transfer, as applicable, and any conversion factors, for the renewable 
fuel derived from biogas.
    (E)(1) For parties registered to generate RINs for renewable CNG/LNG 
prior to July 1, 2024, the registration requirements under paragraph 
(b)(1)(v)(D) under this section apply until December 31, 2024.
    (2) For biogas producers, RNG producers, and biogas closed 
distribution system RIN generators not registered prior to July 1, 2024, 
the registration requirements under Sec.  80.135 apply.
    (F) Any other records as requested by EPA.
    (vi) For facilities claiming the exemption described in Sec.  
80.1403(c) or (d), evidence demonstrating the date that construction 
commenced (as specified in Sec.  80.1403(a)(1)) including all of the 
following:
    (A) Contracts with construction and other companies.
    (B) Applicable air permits issued by the U.S. Environmental 
Protection Agency, state, local air pollution control agencies, or 
foreign governmental agencies that governed the construction and/or 
operation of the renewable fuel facility during construction and when 
first operated.
    (vii)(A) For a renewable fuel producer, foreign ethanol producer, or 
biointermediate producer using separated yard waste:
    (1) The location of any establishment from which the waste stream 
consisting solely of separated yard waste is collected.
    (2) A plan documenting how the waste will be collected and how the 
renewable fuel producer or foreign ethanol producer will conduct ongoing 
verification that such waste consists only of yard waste (and incidental 
other components such as paper and plastics) that is kept separate since 
generation from other waste materials.
    (B) For a renewable fuel producer, foreign ethanol producer, or 
biointermediate producer using separated food waste:
    (1) A plan documenting the type(s) of separated food waste or 
biogenic waste oils/fats/greases, the type(s) of establishment from 
which the waste is collected, how the waste will be collected, a 
description of ongoing verification measures that demonstrate such waste 
consists only of food waste (and an incidental amount of other 
components such as paper and plastics) or biogenic waste oils/fats/
greases that is kept separate from other waste materials, and if 
applicable, how the cellulosic and non-cellulosic portions of the waste 
will be quantified.
    (2) [Reserved]
    (viii) For a renewable fuel producer, foreign ethanol producer, or 
biointermediate producer using separated municipal solid waste:
    (A) The location of the municipal waste establishment(s) from which 
the separated municipal solid waste is collected or from which material 
is collected that will be processed to produce separated municipal solid 
waste.

[[Page 195]]

    (B) A plan providing ongoing verification that there is separation 
of recyclable paper, cardboard, plastics, rubber, textiles, metals, and 
glass wastes to the extent reasonably practicable and which documents 
the following:
    (1) Extent and nature of recycling that occurred prior to receipt of 
the waste material by the renewable fuel producer, foreign ethanol 
producer, or biointermediate producer;
    (2) Identification of available recycling technology and practices 
that are appropriate for removing recycling materials from the waste 
stream by the fuel producer, foreign ethanol producer, or 
biointermediate producer; and
    (3) Identification of the technology or practices selected for 
implementation by the fuel producer, foreign ethanol producer, or 
biointermediate producer including an explanation for such selection, 
and reasons why other technologies or practices were not.
    (C) Contracts relevant to materials recycled from municipal waste 
streams as described in Sec.  80.1426(f)(5)(iii).
    (D) Certification by the producer that recycling is conducted in a 
manner consistent with goals and requirements of applicable State and 
local laws relating to recycling and waste management.
    (E) The independent third-party engineer must visit all material 
recovery facilities as part of the engineering review site visit under 
Sec.  80.1450(b)(2) and (d)(3), as applicable.
    (ix)(A) For a producer of ethanol from grain sorghum or a foreign 
ethanol producer making product from grain sorghum and seeking to have 
it sold as renewable fuel after addition of ethanol denaturant, provide 
a plan that has been submitted and accepted by U.S. EPA that includes 
the following information:
    (1) Locations from which the biogas used at the facility was 
produced or extracted.
    (2) Name of suppliers of all biogas used at the facility.
    (3) An affidavit from each biogas supplier stating its intent to 
supply biogas to the renewable fuel producer or foreign ethanol 
producer, the quantity and energy content of the biogas that it intends 
to provide to the renewable fuel producer or foreign ethanol producer, 
and that the biogas will be derived solely from landfills, waste 
treatment plants, and/or waste digesters.
    (4) If the producer intends to generate advanced biofuel RINs, 
estimates of the total amount of electricity used from the grid, the 
total amount of ethanol produced, and a calculation of the amount of 
electricity used from the grid per gallon of ethanol produced.
    (5) If the producer intends to generate advanced biofuel RINs, a 
description of how the facility intends to demonstrate and document that 
not more than 0.15 kWh of grid electricity is used per gallon of ethanol 
produced, calculated on a per batch basis, at the time of RIN 
generation.
    (B) [Reserved]
    (x)(A) For a producer of renewable fuel made from Arundo donax or 
Pennisetum purpureum per Sec.  80.1426(f)(14)(i):
    (1) A Risk Mitigation Plan (Plan) that demonstrates the growth of 
Arundo donax or Pennisetum purpureum will not pose a significant 
likelihood of spread beyond the planting area of the feedstock used for 
production of the renewable fuel. The Plan must identify and incorporate 
best management practices (BMPs) into the production, management, 
transport, collection, monitoring, and processing of the feedstock. To 
the extent practicable, the Risk Mitigation Plan should utilize a Hazard 
Analysis Critical Control Point (HACCP) approach to examine each phase 
of the pathway to identify spread reduction steps. BMPs should include 
the development of mitigation strategies and plans to minimize escape 
and other impacts (e.g., minimize soil disturbance), incorporate 
desirable traits (e.g., sterility or reduced seed production), develop 
and implement dispersal mitigation protocols prior to cultivation, 
develop multiple year eradication controls. Eradication controls should 
follow an approach of early detection and rapid response (EDRR) to 
unintended spread. EDRR efforts should demonstrate the likelihood that 
invasions will be halted while still localized and identify and employ 
cooperative networks, communication forums, and consultation processes 
with federal,

[[Page 196]]

state, and local agencies. The Risk Mitigation Plan must provide for the 
following:
    (i) Monitoring and reporting data for a period prior to planting 
that is sufficient to establish a baseline, through crop production, and 
extending beyond crop production for a sufficient period after the field 
is no longer used for feedstock production to ensure no remnants of 
giant reed or napier grass survive or spread.
    (ii) Monitoring must include the area encompassing the feedstock 
growing areas, the transportation corridor between the growing areas and 
the renewable fuel production facility, and the renewable fuel 
production facility, extending to the distance of potential propagation 
of the feedstock species, or further if necessary.
    (iii) Monitoring must reflect the likelihood of spread specific to 
the feedstock.
    (iv) A closure plan providing for the destruction and removal of 
feedstock from the growing area upon abandonment by the feedstock grower 
or end of production.
    (v) A plan providing for an independent third party who will audit 
the monitoring and reporting conducted in accordance with the Plan on an 
annual basis, subject to approval of a different frequency by EPA.
    (2) A letter from the United States Department of Agriculture 
(``USDA'') to the renewable fuel producer stating USDA's conclusions and 
the bases therefore regarding whether the Arundo donax or Pennisetum 
purpureum does or does not present a significant likelihood of spread 
beyond the planting area of the feedstock used for production of the 
renewable fuel as proposed by the producer. This letter shall also 
include USDA's recommendation of whether it is appropriate to require 
the use of a financial mechanism to ensure the availability of financial 
resources sufficient to cover reasonable potential remediation costs 
associated with the invasive spread of giant reed or napier grass beyond 
the intended planting areas. In coordination with USDA, EPA shall 
identify for the producer the appropriate USDA office from which the 
letter should originate.
    (3) Identification of all federal, state, regional, and local 
requirements related to invasive species that are applicable for the 
feedstock at the growing site and at all points between the growing site 
and the fuel production site.
    (4) A copy of all state and local growing permits held by the 
feedstock grower.
    (5) A communication plan for notifying EPA's Office of 
Transportation and Air Quality, USDA, adjacent federal land management 
agencies, and any relevant state, tribal, regional, and local 
authorities as soon as possible after identification of the issue if the 
feedstock is detected outside planted area.
    (6) A copy of the agreement between the feedstock grower and fuel 
producer establishing all rights and duties of the parties related to 
the Risk Mitigation Plan and any other activities and liability 
associated with the prevention of the spread of Arundo donax and/or 
Pennisetum purpureum outside of the intended planting area.
    (7) A copy of the agreement between the fuel producer and an 
independent third party describing how the third party will audit the 
monitoring and reporting conducted in accordance with the Risk 
Mitigation Plan on an annual basis, subject to approval of a different 
timeframe by EPA.
    (8) Information on the financial resources or other financial 
mechanism (such as a state-administered fund, bond, or certificate of 
deposit) that would be available to finance reasonable remediation 
activities associated with the potential spread of giant reed or napier 
grass beyond the intended planting areas, and information on whether it 
is necessary to have any further such resources or mechanism. EPA may 
require a demonstration that there is an adequate financial mechanism 
(such as a state-administered fund, bond, or certificate of deposit) to 
ensure the availability of financial resources sufficient to cover 
reasonable potential remediation costs associated with the spread of 
giant reed or napier grass beyond the intended planting areas.
    (9) EPA may require additional information as appropriate.

[[Page 197]]

    (B) For a producer of renewable fuel made from Arundo donax or 
Pennisetum purpureum per Sec.  80.1426(f)(14)(ii):
    (1) Clear and compelling evidence, including information and 
supporting data, demonstrating that Arundo donax or Pennisetum purpureum 
does not present a significant likelihood of spread beyond the planting 
area of the feedstock used for production of the renewable fuel. 
Evidence must include data collected from similar environments (soils, 
temperatures, precipitation, USDA Hardiness Zones) as the proposed 
feedstock production project site and accepted by the scientific 
community. Such a demonstration should include consideration of the 
elements of a Risk Mitigation Plan set forth in paragraph (b)(1)(x)(A) 
of this section, fully disclose the potential invasiveness of the 
feedstock, provide a closure plan for the destruction and removal of 
feedstock from the growing area upon abandonment by the feedstock grower 
or end of production, and explain why a Risk Mitigation Plan is not 
needed to make the required determination.
    (2) A letter from the United States Department of Agriculture 
(``USDA'') to the renewable fuel producer stating USDA's conclusions and 
the bases therefore regarding whether the Arundo donax or Pennisetum 
purpureum does or does not present a significant likelihood of spread 
beyond the planting area of the feedstock used for production of the 
renewable fuel as proposed by the producer or importer. In coordination 
with USDA, EPA shall identify for the producer the appropriate USDA 
office from which the letter should originate.
    (C) EPA may suspend a producer's registration for purposes of 
generating RINs for renewable fuel using Arundo donax or Pennisetum 
purpureum as a feedstock if such feedstock has spread beyond the 
intended planting area.
    (xi) For a producer of fuel oil meeting paragraph (2) of the 
definition of heating oil in Sec.  80.2:
    (A) An affidavit from the producer of the fuel oil meeting paragraph 
(2) of the definition of ``heating oil'' in Sec.  80.2 stating that the 
fuel oil for which RINs have been generated will be sold for the 
purposes of heating or cooling interior spaces of homes or buildings to 
control ambient climate for human comfort, and no other purpose.
    (B) Affidavits from the final end user or users of the fuel oil 
stating that the fuel oil meeting paragraph (2) of the definition of 
``heating oil'' in Sec.  80.2 is being used or will be used for purposes 
of heating or cooling interior spaces of homes or buildings to control 
ambient climate for human comfort, and no other purpose, and 
acknowledging that any other use of the fuel oil would violate EPA 
regulations and subject the user to civil and/or criminal penalties 
under the Clean Air Act.
    (xii) For a producer or importer of any renewable fuel other than 
ethanol, biodiesel, renewable gasoline, renewable diesel that meets the 
Grade No. 1-D or No. 2-D specification in ASTM D975 (incorporated by 
reference, see Sec.  80.12), biogas, or renewable electricity, all the 
following:
    (A) A description of the renewable fuel and how it will be blended 
to into gasoline or diesel fuel to produce a transportation fuel, 
heating oil or jet fuel that meets all applicable standards.
    (B) A statement regarding whether the renewable fuel producer or 
importer will blend the renewable fuel into gasoline or diesel fuel or 
enter into a written contract for the sale and use of a specific 
quantity of the renewable fuel with a party who blends the fuel into 
gasoline or distillate fuel to produce a transportation fuel, heating 
oil, or jet fuel that meets all applicable standards under this part and 
40 CFR part 1090.
    (C) If the renewable fuel producer or importer enters into a written 
contract for the sale and use of a specific quantity of the renewable 
fuel with a party who blends the fuel into gasoline or distillate fuel 
to produce a transportation fuel, heating oil, or jet fuel, provide all 
the following:
    (1) The name, location and contact information for the party that 
will blend the renewable fuel.
    (2) A copy of the contract that requires the party to blend the 
renewable fuel into gasoline or diesel fuel to produce a transportation 
fuel, heating oil or jet fuel that meets all applicable standards.

[[Page 198]]

    (xiii)(A) A renewable fuel producer seeking to generate D code 3 or 
D code 7 RINs, a foreign ethanol producer seeking to have its product 
sold as cellulosic biofuel after it is denatured, or a biointermediate 
producer seeking to have its biointermediate made into cellulosic 
biofuel, who intends to produce a single type of fuel using two or more 
feedstocks converted simultaneously, where at least one of the 
feedstocks does not have a minimum 75% average adjusted cellulosic 
content, and who uses only a thermochemical process to convert feedstock 
into renewable fuel, must provide all the following:
    (1) Data showing the average adjusted cellulosic content of the 
feedstock(s) to be used to produce fuel or biointermediate, based on the 
average of at least three representative samples. Cellulosic content 
data must come from an analytical method certified by a voluntary 
consensus standards body or using a method that would produce reasonably 
accurate results as demonstrated through peer reviewed references 
provided to the third party engineer performing the engineering review 
at registration. Samples must be of representative feedstock from the 
primary feedstock supplier that will provide the renewable fuel or 
biointermediate producer with feedstock subsequent to registration.
    (2) For renewable fuel and biointermediate producers who want to use 
a new feedstock(s) after initial registration, updates to their 
registration under paragraph (d) of this section indicating the average 
adjusted cellulosic content of the new feedstock.
    (3) For renewable fuel producers already registered as of August 18, 
2014, to produce a single type of fuel that qualifies for D code 3 or D 
code 7 RINs (or would do so after denaturing) using two or more 
feedstocks converted simultaneously using only a thermochemical process, 
the information specified in this paragraph (b)(1)(xiii)(A) shall be 
provided at the next required registration update under paragraph (d) of 
this section.
    (B) A renewable fuel producer seeking to generate D code 3 or D code 
7 RINs, a foreign ethanol producer seeking to have its product sold as 
cellulosic biofuel after it is denatured, or a biointermediate producer 
seeking to have its biointermediate made into cellulosic biofuel, who 
intends to produce a single type of fuel using two or more feedstocks 
converted simultaneously, where at least one of the feedstocks does not 
have a minimum 75% adjusted cellulosic content, and who uses a process 
other than a thermochemical process, excluding anerobic digestion, or a 
combination of processes to convert feedstock into renewable fuel or 
biointermediate, must provide all the following:
    (1) The expected overall fuel or biointermediate yield, calculated 
as the total volume of fuel produced per batch (e.g., cellulosic biofuel 
plus all other fuel) divided by the total feedstock mass per batch on a 
dry weight basis (e.g., cellulosic feedstock plus all other feedstocks).
    (2) The cellulosic Converted Fraction (CF) that will be used for 
generating RINs under Sec.  80.1426(f)(3)(vi).
    (3) Chemical analysis data supporting the calculated cellulosic 
Converted Fraction and a discussion of the possible variability that 
could be expected between reporting periods per Sec.  
80.1451(b)(1)(ii)(U)(1). Data used to calculate the cellulosic CF must 
be representative and obtained using an analytical method certified by a 
voluntary consensus standards body, or using a method that would produce 
reasonably accurate results as demonstrated through peer reviewed 
references provided to the third party engineer performing the 
engineering review at registration.
    (4) A description and calculations showing how the data were used to 
determine the cellulosic Converted Fraction.
    (5) For renewable fuel producers already registered as of August 18, 
2014, to produce a single type of fuel that qualifies for D code 3 or D 
code 7 RINs (or would do so after denaturing) using two or more 
feedstocks converted simultaneously using a combination of processes or 
a process other than a thermochemical process, the information specified 
in this paragraph (b)(1)(xiii)(B) shall be provided at the next required 
registration update under paragraph (d) of this section.

[[Page 199]]

    (C) A renewable fuel producer seeking to generate D code 3 or D code 
7 RINs or a biointermediate producer seeking to have its biointermediate 
made into cellulosic biofuel, who intends to produce biogas using two or 
more feedstocks converted simultaneously in an anaerobic digester, where 
at least one of the feedstocks does not have a minimum 75% adjusted 
cellulosic content, must supply the information specified in Sec.  
80.135(c)(10).
    (xiv) For a producer of cellulosic biofuel made from energy cane, or 
a foreign renewable fuel producer making ethanol from energy cane and 
seeking to have it sold after denaturing as cellulosic biofuel, provide 
all of the following:
    (A) Data showing that the average adjusted cellulosic content of 
each cane cultivar they intend to use is at least 75%, based on the 
average of at least three representative samples of each cultivar. 
Cultivars must be grown under normal growing conditions and consistent 
with acceptable farming practices. Samples must be of feedstock from a 
feedstock supplier that the fuel producer intends to use to supply 
feedstock for their production process and must represent the feedstock 
supplier's range of growing conditions and locations. Cellulosic content 
data must come from an analytical method certified by a voluntary 
consensus standards body or using a method that would produce reasonably 
accurate results as demonstrated through peer reviewed references 
provided to the third party engineer performing the engineering review 
at registration.
    (B) Producers that want to change or add new cultivar(s) after 
initial registration must update their registration and provide EPA with 
data in accordance with paragraph (d) of this section demonstrating that 
the average adjusted cellulosic content for any new cultivar is at least 
75%. Cultivars that do not meet this requirement are considered 
sugarcane for purposes of Table 1 to Sec.  80.1426.
    (xv) For a producer of cellulosic biofuel made from crop residue, a 
foreign ethanol producer making ethanol from crop residue and seeking to 
have it sold after denaturing as cellulosic biofuel, or a 
biointermediate producer producing a biointermediate for use in the 
production of a cellulosic biofuel made from crop residue, provide all 
the following information:
    (A) A list of all feedstocks the producer intends to utilize as crop 
residue.
    (B) A written justification which explains why each feedstock a 
producer lists according to paragraph (b)(1)(xv)(A) of this section 
meets the definition of crop residue.
    (C) For producers already registered as of August 18, 2014 to 
produce a renewable fuel using crop residue, the information specified 
in this paragraph (b)(1)(xv) shall be provided at the next required 
registration update under paragraph (d) of this section.
    (xvi) For FFA feedstock, the biointermediate producer must provide a 
description of how the biointermediate producer will determine FFA 
concentration.
    (2) An independent third-party engineering review and written report 
and verification of the information provided pursuant to paragraph 
(b)(1) of this section and Sec.  80.135, as applicable. The report and 
verification shall be based upon a site visit and review of relevant 
documents and shall separately identify each item required by paragraph 
(b)(1) of this section, describe how the independent third-party 
evaluated the accuracy of the information provided, state whether the 
independent third-party agrees with the information provided, and 
identify any exceptions between the independent third-party's findings 
and the information provided.
    (i) The verifications required under this section must be conducted 
by a professional engineer, as specified in paragraphs (b)(2)(i)(A) and 
(b)(2)(i)(B) of this section, who is an independent third-party. The 
verifying engineer must be:
    (A) For a domestic renewable fuel production facility, a foreign 
ethanol production facility, or a biointermediate production facility, a 
professional engineer who is licensed by an appropriate state agency in 
the United States, with professional work experience in the chemical 
engineering field or related to renewable fuel production.

[[Page 200]]

    (B) For a foreign renewable fuel or foreign biointermediate 
production facility, an engineer who is a foreign equivalent to a 
professional engineer licensed in the United States with professional 
work experience in the chemical engineering field or related to 
renewable fuel production.
    (ii) The independent third-party engineer and its contractors and 
subcontractors must meet the independence requirements specified in 
Sec.  80.1471(b)(1), (2), (4), (5), and (7) through (12).
    (iii) The independent third-party shall retain all records 
pertaining to the verification required under this section for a period 
of five years from the date of creation and shall deliver such records 
to EPA upon request.
    (iv) The renewable fuel producer, foreign ethanol producer, or 
biointermediate producer must retain records of the review and 
verification, as required in Sec.  80.1454(b)(6) or (i)(4), as 
applicable.
    (v) The third-party must provide to EPA documentation of his or her 
qualifications as part of the engineering review, including proof of 
appropriate professional license or foreign equivalent.
    (vi) Owners and operators of facilities described in Sec.  
80.1403(c) and (d) must submit the engineering review no later than 
December 31, 2010.
    (vii) Reports required under this paragraph (b)(2) must be 
electronically submitted directly to EPA by an independent third-party 
engineer using forms and procedures established by EPA.
    (viii) The independent third-party engineer must conduct engineering 
reviews as follows:
    (A)(1) To verify the accuracy of the information provided in 
paragraph (b)(1)(ii) of this section, the independent third-party 
engineer must conduct independent calculations of the throughput rate-
limiting step in the production process, take digital photographs of all 
process units depicted in the process flow diagram during the site 
visit, and certify that all process unit connections are in place and 
functioning based on the site visit.
    (2) Digital photographs of a process unit are not required if the 
third-party engineer submits documentation demonstrating why they were 
unable to access certain locations due to access issues or safety 
concerns. EPA may not accept a registration if EPA is unable to 
determine whether the facility is capable of producing the requested 
renewable fuel, biointermediate, biogas, or RNG, as applicable, due to 
the lack of sufficient digital photographs of process units for the 
facility.
    (B) To verify the accuracy of the information in paragraph 
(b)(1)(iii) of this section, the independent third-party engineer must 
obtain independent documentation from parties in contracts with the 
producer for any co-product sales or disposals. The independent third-
party engineer may use representative sampling as specified in 40 CFR 
1090.1805 to verify co-product sales or disposals.
    (C) To verify the accuracy of the information provided in paragraph 
(b)(1)(iv) of this section, the independent third-party engineer must 
obtain independent documentation from all process heat fuel suppliers of 
the process heat fuel supplied to the facility. The independent third-
party engineer may use representative sampling as specified in 40 CFR 
1090.1805 to verify fuel suppliers.
    (D) To verify the accuracy of the information provided in paragraph 
(b)(1)(v) of this section, the independent third-party engineer must 
conduct independent calculations of the Converted Fraction that will be 
used to generate RINs.
    (ix) The independent third-party engineer must provide to EPA 
documentation demonstrating that a site visit, as specified in paragraph 
(b)(2) of this section, occurred. Such documentation must include 
digital photographs with date and geographic coordinates taken during 
the site visit and a description of what is depicted in the photographs.
    (x) The independent third-party engineer must sign, date, and submit 
to EPA with the written report the following conflict of interest 
statement:
    ``I certify that the engineering review and written report required 
and submitted under 40 CFR 80.1450(b)(2) was conducted and prepared by 
me, or under my direction or supervision, in

[[Page 201]]

accordance with a system designed to assure that qualified personnel 
properly gather and evaluate the information upon which the engineering 
review was conducted and the written report is based. I further certify 
that the engineering review was conducted and this written report was 
prepared pursuant to the requirements of 40 CFR part 80 and all other 
applicable auditing, competency, independence, impartiality, and 
conflict of interest standards and protocols. Based on my personal 
knowledge and experience, and inquiry of personnel involved, the 
information submitted herein is true, accurate, and complete. I am aware 
that there are significant penalties for submitting false information, 
including the possibility of fines and imprisonment for knowing 
violations.''
    (c) Importers. Importers of renewable fuel must provide EPA the 
information specified under 40 CFR 1090.805, if such information has not 
already been provided under the provisions of this part and must receive 
an EPA-issued company identification number prior to generating or 
owning RINs. Registration information must be submitted and accepted by 
EPA by July 1, 2010, or 60 days prior to an importer importing any 
renewable fuel with assigned RINs or generating any RINs for renewable 
fuel, whichever dates comes later.
    (d) Registration updates. (1)(i)(A) Any renewable fuel producer or 
any foreign ethanol producer that makes changes to their facility that 
will allow them to produce renewable fuel or use a biointermediate that 
is not reflected in the producer's registration information on file with 
EPA must update their registration information and submit a copy of an 
updated independent third-party engineering review on file with EPA at 
least 60 days prior to producing the new type of renewable fuel.
    (B) Any biointermediate producer who makes changes to their 
biointermediate production facility that will allow them to produce a 
biointermediate for use in the production of a renewable fuel that is 
not reflected in the biointermediate producer's registration information 
on file with EPA must update their registration information and submit a 
copy of an updated independent third-party engineering review on file 
with EPA at least 60 days prior to producing the new biointermediate for 
use in the production of the renewable fuel.
    (ii) The renewable fuel producer, foreign ethanol producer, or 
biointermediate producer may also submit an addendum to the independent 
third-party engineering review on file with EPA provided the addendum 
meets all the requirements in paragraph (b)(2) of this section and 
verifies for EPA the most up-to-date information at the producer's 
existing facility.
    (2)(i) Any renewable fuel producer or any foreign ethanol producer 
that makes any other changes to a facility that will affect the 
producer's registration information but will not affect the renewable 
fuel category for which the producer is registered per paragraph (b) of 
this section must update their registration information 7 days prior to 
the change.
    (ii)(A) Any biointermediate producer that makes any other changes to 
a biointermediate production facility that will affect the 
biointermediate producer's registration must update their registration 
information 7 days prior to the change.
    (B)(1) Any biointermediate producer that intends to change the 
designated renewable fuel production facility under paragraph 
(b)(1)(ii)(B)(1) of this section for one of its biointermediate 
production facilities must update their registration information with 
EPA at least 30 days prior to transferring the biointermediate to the 
newly designated renewable fuel production facility.
    (2) A biointermediate producer may only change the designated 
renewable fuel production facility under paragraph (b)(1)(ii)(B)(1) of 
this section for each biointermediate production facility one time per 
calendar year unless EPA, in its sole discretion, allows the 
biointermediate producer to change the designated renewable fuel 
production facility more frequently.
    (3) All renewable fuel producers, foreign ethanol producers, and 
biointermediate producers must update registration information and 
submit an updated independent third-party engineering review as follows:

[[Page 202]]

    (i) For all renewable fuel producers and foreign ethanol producers 
registered in calendar year 2010, the updated registration information 
and independent third-party engineering review must be submitted to EPA 
by January 31, 2013, and by January 31 of no less frequent than every 
third calendar year thereafter.
    (ii) For all renewable fuel producers, foreign ethanol producers, 
and biointermediate producers registered in any calendar year after 
2010, the updated registration information and independent third-party 
engineering review must be submitted to EPA by January 31 of no less 
frequent than every third calendar year after the date of the first 
independent third-party engineering review site visit conducted under 
paragraph (b)(2) of this section. For example, if a renewable fuel 
producer arranged for a third-party engineer to conduct the first site 
visit on December 15, 2023, the three-year independent third-party 
engineer review must be submitted by January 31, 2027.
    (iii) For all renewable fuel producers, the updated independent 
third-party engineering review must include all the following:
    (A) The engineering review and written report and verification 
required by paragraph (b)(2) of this section.
    (B) A detailed review of the renewable fuel producer's calculations 
and assumptions used to determine VRIN of a representative 
sample of batches of each type of renewable fuel produced since the last 
registration. This representative sampling must adhere to all the 
following, as applicable:
    (1) The representative sample must be selected in accordance with 
the sample size guidelines set forth at 40 CFR 1090.1805.
    (2) For updated independent third-party engineering reviews 
submitted after January 31, 2024, the representative sample must be 
selected from batches of renewable fuel produced through at least the 
second quarter of the calendar year prior to the applicable January 31 
deadline.
    (iv) For biointermediate producers, in addition to conducting the 
engineering review and written report and verification required by 
paragraph (b)(2) of this section, the updated independent third-party 
engineering review must include a detailed review of the biointermediate 
producer's calculations used to determine the renewable biomass and 
cellulosic renewable biomass proportions, as required to be reported to 
EPA under Sec.  80.1451(j), of a representative sample of batches of 
each type of biointermediate produced since the last registration. The 
representative sample must be selected in accordance with the sample 
size guidelines set forth at 40 CFR 1090.1805.
    (v) For updated independent third-party engineering reviews 
submitted after January 31, 2024, independent third-party engineers must 
conduct site visits required under this paragraph (d) no sooner than 
July 1 of the calendar year prior to the applicable January 31 deadline.
    (vi) For updated independent third-party engineering reviews 
submitted after January 31, 2024, the site visits required under this 
paragraph (d) must occur when the renewable fuel production facility is 
producing renewable fuel or when the biointermediate production facility 
is producing biointermediates.
    (vii) If a renewable fuel producer, foreign ethanol producer, or 
biointermediate producer updates their registration information and 
independent third-party engineering review prior to the next applicable 
January 31 deadline, and the registration information and independent 
third-party engineering review meet all applicable requirements under 
paragraphs (b)(2) and (d)(3)(iii) of this section, the next required 
registration information and independent third-party engineering review 
update is due by January 31 of every third calendar year after the date 
of the updated independent third-party engineering review site visit.
    (e) Any party who owns RINs, intends to own RINs, or intends to 
allow another party to separate RINs as per Sec.  80.1440, but who is 
not covered by paragraph (a), (b), or (c) of this section, must provide 
EPA the information specified under 40 CFR 1090.805, if such information 
has not already been provided under the provisions of this part and must 
receive an EPA-issued company identification number prior to

[[Page 203]]

owning any RINs. Registration information must be submitted at least 30 
days prior to RIN ownership.
    (f) Registration for any facility claiming an exemption under Sec.  
80.1403(c) or (d), must be submitted by July 1, 2013. EPA may in its 
sole discretion waive this requirement if it determines that the 
information submitted in any later registration can be verified by EPA 
in the same manner as would have been possible with a timely submission.
    (g) Independent third-party auditors. Any independent third-party 
auditor described in Sec.  80.1471 must register with the EPA as an 
independent third-party auditor and receive an EPA issued company 
identification number prior to conducting quality assurance audits 
pursuant to Sec.  80.1472. Registration information must be submitted at 
least 30 days prior to conducting audits of renewable fuel production or 
biointermediate production facilities. The independent third-party 
auditor must provide to the EPA all the following:
    (1) The information specified under 40 CFR 1090.805, if such 
information has not already been provided under the provisions of this 
part.
    (2) Documentation of professional qualifications as follows:
    (i) For a professional engineer as described in Sec.  
80.1450(b)(2)(i)(A) and (b)(2)(i)(B).
    (ii) For a domestic independent third-party auditor or a foreign 
independent third-party auditor, a certified public accountant who is 
licensed by an appropriate state agency in the United States.
    (iii) For a foreign independent third-party auditor, an accountant 
who is a foreign equivalent to a certified public accountant licensed in 
the United States.
    (3) Documentation of professional liability insurance as described 
in Sec.  80.1471(c).
    (4) Any quality assurance plans as described in Sec.  80.1469.
    (5) List of audited producers. Name, address, and company and 
facility identification numbers of all renewable fuel production or 
biointermediate production facilities that the independent third-party 
auditor intends to audit under Sec.  80.1472.
    (6) Audited producer associations. An affidavit, or electronic 
consent, from each renewable fuel producer, foreign renewable fuel 
producer, or biointermediate producer stating its intent to have the 
independent third-party auditor conduct a quality assurance audit of any 
of the renewable fuel producer's or foreign renewable fuel producer's 
facilities.
    (7) Independence affidavits. An affidavit stating that an 
independent third-party auditor and its contractors and subcontractors 
are independent, as described in Sec.  80.1471(b), of any renewable fuel 
producer, foreign renewable fuel producer, or biointermediate producer.
    (8) The name and contact information for each person employed (or 
under contract or subcontract) by the independent third-party auditor to 
conduct audits or verify RINs, as well as the name and contact 
information for any professional engineer and certified public 
accountant performing the review.
    (9) Registration updates. (i) Any independent third-party auditor 
who makes changes to its quality assurance plan(s) that will allow it to 
audit new renewable fuel production or biointermediate production 
facilities that is not reflected in the independent third-party 
auditor's registration information on file with EPA must update its 
registration information and submit a copy of an updated QAP on file 
with EPA at least 60 days prior to auditing new renewable fuel 
production or biointermediate production facilities.
    (ii) Any independent third-party auditor who makes any changes other 
than those specified in paragraphs (g)(9)(i), (iii), and (iv) of this 
section that will affect the third-party auditor's registration 
information must update its registration information 7 days prior to the 
change.
    (iii) Independent third-party auditors must update their QAPs at 
least 60 days prior to verifying RINs generated or biointermediate 
produced by a renewable fuel or biointermediate production facility, 
respectively, for a pathway not covered in the independent third-party 
auditor's QAPs.
    (iv) Independent third-party auditors must update their QAPs at 
least 60

[[Page 204]]

days prior to verifying RINs generated or biointermediate produced by 
any renewable fuel or biointermediate production facility not identified 
in the independent third-party auditor's existing registration.
    (10) Registration renewal. Registrations for independent third-party 
auditors expire December 31 of each calendar year. Previously approved 
registrations will renew automatically if all the following conditions 
are met:
    (i) The independent third-party auditor resubmits all information, 
updated as necessary, described in Sec.  80.1450(g)(1) through (g)(7) no 
later than October 31 before the next calendar year.
    (ii) The independent third-party auditor submits an affidavit 
affirming that they have only verified RINs and biointermediates using a 
QAP approved under Sec.  80.1469 and notified all appropriate parties of 
all potentially invalid RINs as described in Sec.  80.1471(d).
    (iii) The auditor has not received a notice of deficiency from the 
EPA regarding its registration renewal materials.
    (11) Revocation of registration. (i) EPA may issue a notice of 
intent to revoke the registration of a third-party auditor if EPA 
determines that the auditor has failed to fulfill any requirement of 
this subpart. The notice of intent shall include an explanation of the 
reasons for the proposed revocation.
    (ii) Within 60 days of receipt of the notice of intent to revoke, 
the independent third-party auditor may submit written comments 
concerning the notice, including but not limited to a demonstration of 
compliance with the requirements which provide the basis for the 
proposed revocation. Communications should be sent to the EMTS support 
line ([email protected]). EPA shall review and consider any 
such submission before taking final action concerning the proposed 
revocation.
    (iii) If the auditor fails to respond in writing within 60 days to 
the notice of intent to revoke, the revocation shall become final by 
operation of law and EPA shall notify the independent third-party 
auditor of such revocation.
    (h) Deactivation of registration. (1) EPA may deactivate the 
registration of any party required to register under this section Sec.  
80.1450, using the process in paragraph (h)(2) of this section, if any 
of the following criteria are met:
    (i) Unless the party is a biointermediate producer, the party has 
reported no activity in EMTS for twenty-four consecutive months.
    (ii) The party has failed to comply with the registration 
requirements of this section.
    (iii) The party has failed to submit any required notification or 
report within 30 days of the required submission date under Sec.  
80.1451.
    (iv) The attest engagement required under Sec.  80.1464 has not been 
received within 30 days of the required submission date.
    (v) The party fails to pay a penalty or to perform any requirements 
under the terms of a court order, administrative order, consent decree, 
or administrative settlement between the party and EPA.
    (vi) The party submits false or incomplete information.
    (vii) The party denies EPA access or prevents EPA from completing 
authorized activities under sections 114 or 208 of the Clean Air Act 
despite presenting a warrant or court order. This includes a failure to 
provide reasonable assistance.
    (viii) The party fails to keep or provide the records required by 
this subpart.
    (ix) The party otherwise circumvents the intent of the Clean Air Act 
or of this subpart.
    (2) Except as provided in paragraph (h)(3) of this section, EPA will 
use the following process whenever it decides to deactivate the 
registration of a party:
    (i) EPA will provide written notification to the responsible 
corporate officer identifying the reasons or deficiencies for which EPA 
intends to deactivate the party's registration. The party will have 30 
calendar days from the date of the notification to correct the 
deficiencies identified or explain why there is no need for corrective 
action.
    (ii) If the basis for EPA's notice of intent to deactivate 
registration is the absence of EMTS activity under paragraph (h)(1)(i) 
of this section, a stated intent to engage in activity reported

[[Page 205]]

through EMTS will be sufficient to avoid deactivation of registration.
    (iii) If the party does not correct identified deficiencies under 
paragraphs (h)(1)(ii) through (ix) of this section, or does not provide 
an adequate explanation regarding why such correction is not necessary 
within the time allotted for response, EPA may deactivate the party's 
registration without further notice to the party.
    (3) In instances of willfulness or those in which public health, 
interest, or safety requires otherwise, EPA may deactivate the 
registration of the party without any notice to the party. EPA will 
provide written notification to the responsible corporate officer 
identifying the reasons EPA deactivated the registration of the party.
    (4) Impact of registration deactivation:
    (i) A party whose registration is deactivated shall still be liable 
for violation of any requirements of this subpart.
    (ii) A party whose registration is deactivated will not be listed on 
any public list of actively registered parties that is maintained by 
EPA.
    (iii) A party whose registration is deactivated will not have access 
to any of the electronic reporting systems associated with the renewable 
fuel standard program, including the EPA Moderated Transaction System 
(EMTS).
    (iv) A party whose registration is deactivated must submit any 
corrections of deficiencies to EPA on forms, and following policies, 
established by EPA.
    (v) If a party whose registration has been deactivated wishes to re-
register, they may seek to do so by submitting a new registration 
pursuant to the requirements in paragraphs (a) through (c), (e), and (g) 
of this section, as applicable.
    (i) Registration procedures. (1) Registration shall be on forms, and 
following policies, established by EPA.
    (2) English language registrations--Any document submitted to EPA 
under this section must be submitted in English, or shall include an 
English translation.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26043, May 10, 2010; 77 
FR 1356, Jan. 9, 2012; 77 FR 74606, Dec. 17, 2012; 78 FR 41714, July 11, 
2013; 78 FR 62471, Oct. 22, 2013; 79 FR 42163, July 18, 2014; 79 FR 
42115, July 18, 2014; 85 FR 7077, Feb. 6, 2020; 85 FR 78467, Dec. 4, 
2020; 87 FR 39665, July 1, 2022; 88 FR 44586, July 12, 2023; 88 FR 
51239, Aug. 3, 2023; 88 FR 44587, July 12, 2023]



Sec.  80.1451  What are the reporting requirements under the RFS program?

    (a) Obligated parties and exporters. Any obligated party or exporter 
of renewable fuel must submit to EPA reports according to the schedule, 
and containing all the information, that is set forth in this paragraph 
(a).
    (1) Annual compliance reports must include all the following 
information:
    (i) The obligated party's or exporter of renewable fuel's name.
    (ii) The EPA company registration number.
    (iii) Whether the refiner is complying on a corporate (aggregate) or 
facility-by-facility basis.
    (iv) The EPA facility registration number, if complying on a 
facility-by-facility basis.
    (v)(A) For the 2010 through 2019 compliance periods, the production 
volume and import volume of all of the products listed in Sec.  
80.1407(c) and (e) for the compliance period.
    (B) For the 2020 compliance period, separately, the production 
volume and import volume of all of the gasoline products listed in Sec.  
80.1407(c), the production volume and import volume of all of the MVNRLM 
diesel fuel products listed in Sec.  80.1407(e), and the combined volume 
of all gasoline products and MVNRLM diesel fuel listed in Sec.  
80.1407(c) and (e) for the compliance period.
    (C) Beginning with the 2021 compliance period, separately, the 
production volume and import volume for the compliance period of all of 
the following:
    (1) All of the gasoline products listed in Sec.  80.1407(c).
    (2) All of the MVNRLM diesel fuel products listed in Sec.  
80.1407(e).

[[Page 206]]

    (3) The combined production volume of all gasoline products and 
MVNRLM diesel fuel.
    (4) Distillate fuel that is not transportation fuel.
    (5) Distillate fuel that is certified NTDF.
    (vi) The RVOs, as specified in Sec.  80.1427(a) for obligated 
parties and Sec.  80.1430(b) for exporters of renewable fuel, for the 
reporting year.
    (vii) Any deficit RVOs carried over from the previous year.
    (viii) The total current-year RINs by category of renewable fuel 
(i.e., cellulosic biofuel, biomass-based diesel, advanced biofuel, 
renewable fuel, and cellulosic diesel), retired for compliance.
    (ix) The total prior-year RINs by renewable fuel category retired 
for compliance.
    (x) The total cellulosic biofuel waiver credits used to meet the 
party's cellulosic biofuel RVO.
    (xi) A list of all RINs generated prior to July 1, 2010 that were 
retired for compliance in the reporting period.
    (xii) Any deficit RVO(s) carried into the subsequent year.
    (xiii) Any additional information that EPA may require.
    (xiv)-(xv) [Reserved]
    (xvi) The total current-year RINs by category of renewable fuel 
(i.e., cellulosic biofuel, biomass-based diesel, advanced biofuel, 
renewable fuel, and cellulosic diesel), retired for compliance that are 
invalid as specified in Sec.  80.1431(a).
    (xvii) The total prior-year RINs by renewable fuel category retired 
for compliance that are invalid as specified in Sec.  80.1431(a).
    (xviii) A list of all RINs that were retired for compliance in the 
reporting period and are invalid as specified in Sec.  80.1431(a).
    (xix) For parties that redesignate certified NTDF as MVNRLM diesel 
fuel under Sec.  80.1408 at any time during the compliance period, the 
volumes MVNRLMBAL, MVNRLMO, 
MVNRLMINVCHG, and MVNRLMI as calculated in Sec.  
80.1408(a)(2).
    (2) The RIN transaction reports required under paragraph (c)(1) of 
this section.
    (3) The quarterly RIN activity reports required under paragraph 
(c)(2) of this section.
    (4) Reports required under this paragraph (a) must be signed and 
certified as meeting all the applicable requirements of this subpart by 
the owner or a responsible corporate officer of the obligated party or 
exporter of renewable fuel.
    (b) Renewable fuel producers (domestic and foreign) and importers. 
Any domestic producer or importer of renewable fuel who generates RINs, 
or any RIN-generating foreign producer must submit to EPA reports 
according to the schedule, and containing all of the following 
information:
    (1)(i) For RINs generated beginning on July 1, 2010, RIN generation 
reports for each facility owned by the renewable fuel producer or 
importer shall be submitted according to the schedule specified in 
paragraph (f)(2) of this section.
    (ii) The RIN generation reports shall include all the following 
information for each batch of renewable fuel produced or imported, where 
``batch'' means a discrete quantity of renewable fuel produced or 
imported and assigned a unique batch-RIN per Sec.  80.1426(d):
    (A) The RIN generator's name.
    (B) The RIN generator's EPA company registration number.
    (C) The renewable fuel producer EPA facility registration number.
    (D) The importer EPA facility registration number and foreign 
renewable fuel producer company registration number, if applicable.
    (E) The applicable reporting period.
    (F) The quantity of RINs generated for each batch according to Sec.  
80.1426.
    (G) The production date of each batch.
    (H) The fuel type of each batch.
    (I) The volume of ethanol denaturant and applicable equivalence 
value of each batch.
    (J) The volume of each batch produced.
    (K) The types and quantities of feedstocks and biointermediates 
used.
    (L) The process(es), feedstock(s), and biointermediate(s) used and 
proportion of renewable volume attributable to each process, feedstock, 
and biointermediate.

[[Page 207]]

    (M) The type of co-products produced with each batch.
    (N) The quantity of co-products produced in each quarter.
    (O) A list of the RINs generated and an affirmation that the 
feedstock(s) used for each batch meets the definition of renewable 
biomass.
    (P) Producers of renewable electricity and producers or importers of 
biogas used for transportation as described in Sec.  80.1426(f)(10) and 
(11), shall report all of the following:
    (1) The total energy produced and supplied for use as a 
transportation fuel, in units of energy (for example, MMBtu or MW) based 
on metering of gas volume or electricity.
    (2) The name and location of where the fuel is sold for use as a 
transportation fuel.
    (Q) Producers or importers of renewable fuel produced at facilities 
that use biogas for process heat as described in Sec.  80.1426(f)(12), 
shall report the total energy supplied to the renewable fuel facility, 
in MMBtu based on metering of gas volume.
    (R) Producers or importers of renewable fuel made from separated 
municipal solid waste must report the amount of paper, cardboard, 
plastics, rubber, textiles, metals, and glass separated from municipal 
solid waste for recycling. Reporting shall be in units of weight (in 
tons).
    (S) Producers of advanced biofuel using grain sorghum shall report 
all of the following:
    (1) The total amount of electricity that is purchased from the grid 
and used at the site, based on metering, in kWh.
    (2) Total amount of ethanol produced.
    (3) Calculation of the amount of grid electricity used at the site 
per gallon of ethanol produced in each batch.
    (4) Each batch number as specified in Sec.  80.1452(b).
    (5) Reference ID for documents required by Sec.  80.1454(k)(2)(D).
    (T) Producers or importers of any renewable fuel other than ethanol, 
biodiesel, renewable gasoline, renewable diesel that meets the Grade No. 
1-D or No. 2-D specification in ASTM D975 (incorporated by reference, 
see Sec.  80.12), biogas or renewable electricity, must report, on a 
quarterly basis, all the following for each volume of fuel:
    (1) Total volume of renewable fuel produced or imported, total 
volume of renewable fuel blended into gasoline and distillate fuel by 
the producer or importer, and the percentage of renewable fuel in each 
batch of finished fuel.
    (2) If the producer or importer generates RINs under Sec.  
80.1426(f)(17)(i)(B)(2), report the name, location, and contract 
information for each party that purchased the renewable fuel.
    (U) Producers generating D code 3 or 7 RINs for cellulosic biofuel 
other than RNG or biogas-derived renewable fuel, and that was produced 
from two or more feedstocks converted simultaneously, at least one of 
which has less than 75% average adjusted cellulosic content, and using a 
combination of processes or a process other than a thermochemical 
process or a combination of processes, must report all the following:
    (1) The cellulosic converted fraction as determined by collecting 
new representative process data and performing the same chemical 
analysis method accepted at registration. Producers shall calculate this 
information on an annual basis or within 10 business days of generating 
every 500,000 gallons of cellulosic biofuel, whichever is more frequent, 
and report quarterly. Reports shall include all values used to calculate 
feedstock energy according to Sec.  80.1426(f)(3)(vi). If new data shows 
that the cellulosic Converted Fraction is different than previously 
calculated, the formula used to generate RINs under Sec.  80.1426(f)(3) 
must be updated as soon as practical but no later than 5 business days 
after the producer receives the updated data. If new testing data 
results in a change to the cellulosic Converted Fraction, only RINs 
generated after the new testing data were received, subject to the 5-day 
allowance, would be affected.
    (2) If the cellulosic Converted Fraction deviates from the 
previously calculated cellulosic Converted Fraction by 10% or more then 
the producer must notify EPA within 5 business days of receiving the new 
data and must adjust the formula used to generate RINs

[[Page 208]]

under Sec.  80.1426(f)(3) for all fuel generated as soon as practical 
but no later than 5 business days after the producer receives the new 
data. If new testing data results in a change to the cellulosic 
Converted Fraction, only RINs generated after the new testing data were 
received, subject to the 5-day allowance, would be affected.
    (V) Producers of renewable fuel using crop residue as a feedstock 
shall report all of the following according to the schedule specified in 
paragraph (f)(2) of this section:
    (1) The specific feedstock(s) utilized to produce renewable fuel 
under a pathway allowing the use of crop residue as feedstock.
    (2) The total quantity of each specific feedstock used to produce 
renewable fuel.
    (3) The total amount of qualifying renewable fuel produced under the 
crop residue pathway(s) in that quarter.
    (W) Any additional information EPA may require.
    (2) The RIN transaction reports required under paragraph (c)(1) of 
this section.
    (3) The RIN activity reports required under paragraph (c)(2) of this 
section.
    (4) Reports required under this paragraph (b) must be signed and 
certified as meeting all the applicable requirements of this subpart by 
the owner or a responsible corporate officer of the renewable fuel 
producer or importer.
    (c) All RIN-owning parties. Any party, including any party specified 
in paragraphs (a) and (b) of this section, that owns RINs during a 
reporting period, must submit reports to EPA according to the schedule, 
and containing all the information, that is set forth in this paragraph 
(c).
    (1)(i) For RIN transactions beginning on July 1, 2010, RIN 
transaction reports listing each RIN transaction shall be submitted 
according to the schedule in paragraph (f)(2) of this section.
    (ii) As per Sec.  80.1452, RIN transaction information listing each 
RIN transaction shall be submitted to the EMTS.
    (iii) Each report required by paragraph (c)(1)(i) of this section 
shall include all of the following information:
    (A) The submitting party's name.
    (B) The submitting party's EPA company registration number.
    (C) The applicable reporting period.
    (D) Transaction type (i.e., RIN buy, RIN sell, RIN separation, RIN 
retire, reinstated 2009 or 2010 RINs).
    (E) Transaction date.
    (F) For a RIN purchase or sale, the trading partner's name.
    (G) For a RIN purchase or sale, the trading partner's EPA company 
registration number. For all other transactions, the submitting party's 
EPA company registration number.
    (H) RIN subject to the transaction.
    (I) For a RIN purchase or sale, the per gallon RIN price and/or the 
per gallon price of renewable fuel price with RINs included.
    (J) The reason code for retiring RINs, separating RINs, buying RINs, 
or selling RINs.
    (K) Any additional information that EPA may require.
    (2) RIN activity reports must be submitted to EPA according to the 
schedule specified in paragraph (f)(2) of this section. Each report must 
summarize RIN activities for the reporting period, separately for RINs 
separated from a renewable fuel volume and RINs assigned to a renewable 
fuel volume.
    (i) For compliance periods ending on or before December 31, 2019, 
each report must include all of the following information:
    (A) The submitting party's name.
    (B) The submitting party's EPA company registration number.
    (C) The number of current-year RINs owned at the start of the 
quarter.
    (D) The number of prior-year RINs owned at the start of the quarter.
    (E) The total current-year RINs purchased.
    (F) The total prior-year RINs purchased.
    (G) The total current-year RINs sold.
    (H) The total prior-year RINs sold.
    (I) The total current-year RINs retired.
    (J) The total current-year RINs retired that are invalid under Sec.  
80.1431(a).
    (K) The total prior-year RINs retired.
    (L) The total prior-year RINs retired that are invalid under Sec.  
80.1431(a).
    (M) The number of current-year RINs owned at the end of the quarter.
    (N) The number of prior-year RINs owned at the end of the quarter.
    (O) The number of RINs generated.

[[Page 209]]

    (P) The volume of renewable fuel (in gallons) owned at the end of 
the quarter.
    (Q) The total 2009 and 2010 retired RINs reinstated.
    (R) Any additional information that EPA may require.
    (ii) For compliance periods starting on or after January 1, 2020, 
each report must include all of the following information:
    (A) The submitting party's name.
    (B) The submitting party's EPA-issued company identification number.
    (C) Primary registration designation or compliance level for 
compliance year (e.g., ``Aggregated Refiner,'' ``Exporter,'' ``Renewable 
Fuel Producer,'' ``RIN Owner Only,'' etc.).
    (D) All of the following information:
    (1) The number of current-year RINs owned at the start of the 
quarter.
    (2) The number of prior-year RINs owned at the start of the quarter.
    (3) The total current-year RINs purchased.
    (4) The total prior-year RINs purchased.
    (5) The total current-year RINs sold.
    (6) The total prior-year RINs sold.
    (7) The total current-year RINs retired.
    (8) The total current-year RINs retired that are invalid under Sec.  
80.1431(a).
    (9) The total prior-year RINs retired.
    (10) The total prior-year RINs retired that are invalid under Sec.  
80.1431(a).
    (11) The number of current-year RINs owned at the end of the 
quarter.
    (12) The number of prior-year RINs owned at the end of the quarter.
    (13) The number of RINs generated.
    (14) The volume of renewable fuel (in gallons) owned at the end of 
the quarter.
    (E)(1) Indicate if the submitting party or the submitting party's 
corporate affiliate group exceeded the primary threshold for any day in 
the quarter under Sec.  80.1435(c)(1). If the submitting party is in an 
affiliate group that does not contain an obligated party, and the 
affiliate group has exceeded the primary threshold, then EPA may publish 
the name and EPA-issued company identification number of the submitting 
party.
    (2) Indicate if the submitting party or the submitting party's 
corporate affiliate group exceeded the secondary threshold for any day 
in the quarter under Sec.  80.1435(c)(2). If the submitting party is an 
obligated party and has exceeded the secondary threshold or is in a 
corporate affiliate group containing an obligated party that has 
exceeded the secondary threshold, then EPA may publish the name and EPA-
issued company identification number of the submitting party.
    (F) A list of all corporate and contractual affiliates during the 
reporting period. For each affiliate, include the identification 
information (including the EPA company ID number, if registered) and the 
affiliate type.
    (G) The RVO used to calculate D6 RIN threshold, if alternative 
gasoline and diesel production volumes were used under Sec.  80.1435(d).
    (H) A list of contractual affiliates that had a contract with the 
party that did not result in transfer of RINs to the party during the 
reporting period.
    (I) Any additional information that EPA may require.
    (3) All reports required under this paragraph (c) must be signed and 
certified as meeting all the applicable requirements of this subpart by 
the RIN owner or a responsible corporate officer of the RIN owner.
    (d) Except for those producers using feedstocks subject to the 
aggregate compliance approach described in Sec.  80.1454(g), producers 
and RIN-generating importers of renewable fuel made from feedstocks that 
are planted crops and crop residue from existing foreign agricultural 
land, planted trees or tree residue from actively managed tree 
plantations, slash and pre-commercial thinnings from forestlands or 
biomass obtained from areas at risk of wildfire must submit quarterly 
reports according to the schedule in paragraph (f)(2) of this section 
that include all of the following:
    (1) A summary of the types and quantities of feedstocks used in that 
quarter.
    (2) Electronic data identifying the land by coordinates of the 
points defining the boundaries from which each type of feedstock listed 
per paragraph (d)(1) of this section was harvested.

[[Page 210]]

    (3) If electronic data identifying a plot of land have been 
submitted previously, producers and RIN-generating importers may submit 
a cross-reference to that electronic data.
    (e) If EPA finds that the 2007 baseline amount of agricultural land 
has been exceeded in any year beginning in 2010, beginning on the first 
day of July of the following calendar year any producers or importers of 
renewable fuel that use planted crops and/or crop residue from existing 
U.S. agricultural lands as feedstock must submit quarterly reports 
according to the schedule in paragraph (f)(2) of this section that 
include all of the following:
    (1) A summary of the types and quantities of feedstocks used in that 
quarter.
    (2) Electronic data identifying the land by coordinates of the 
points defining the boundaries from which each type of feedstock listed 
per paragraph (d)(1) of this section was harvested.
    (3) If electronic data identifying a plot of land have been 
submitted previously, producers and RIN-generating importers may submit 
a cross-reference to that electronic data.
    (f) Report submission deadlines. The submission deadlines for annual 
and quarterly reports are as follows:
    (1) Annual compliance reports--(i) Obligated parties. (A) Except as 
specified in paragraph (f)(1)(i)(B) of this section, for obligated 
parties, annual compliance reports must be submitted by whichever of the 
following dates is latest:
    (1) March 31 of the subsequent calendar year.
    (2) The next quarterly reporting deadline under paragraph (f)(2) of 
this section after the date the subsequent compliance year's renewable 
fuel standards become effective in Sec.  80.1405(a).
    (3) The next quarterly reporting deadline under paragraph (f)(2) of 
this section after the annual compliance reporting deadline for the 
prior compliance year.
    (B)(1) For obligated parties that meet the requirements for a small 
refinery under Sec.  80.1441(e)(2)(iii), for the 2019 compliance year, 
annual compliance reports must be submitted no later than the next 
quarterly reporting deadline under paragraph (f)(2) of this section 
after the date the 2021 renewable fuel standards become effective in 
Sec.  80.1405(a).
    (2) For the 2020 compliance year, annual compliance reports must be 
submitted no later than the next quarterly reporting deadline in 
paragraph (f)(2) of this section after the deadline in paragraph 
(f)(1)(i)(B)(1) of this section.
    (3) For the 2021 compliance year, annual compliance reports must be 
submitted no later than the next quarterly reporting deadline in 
paragraph (f)(2) of this section after the deadline in paragraph 
(f)(1)(i)(B)(2) of this section.
    (4) For the 2022 compliance year, annual compliance reports must be 
submitted by whichever of the following dates is latest:
    (i) The next quarterly reporting deadline under paragraph (f)(2) of 
this section after the date the 2023 renewable fuel standards become 
effective in Sec.  80.1405(a).
    (ii) The next quarterly reporting deadline in paragraph (f)(2) of 
this section after the deadline in paragraph (f)(1)(i)(B)(3) of this 
section.
    (ii) All other parties. For all parties other than obligated 
parties, annual compliance reports must be submitted by March 31 of the 
subsequent year.
    (iii) Deadline publication. The annual compliance reporting deadline 
will be calculated in accordance with paragraph (f)(1)(i) of this 
section and published on EPA's website.
    (2) Quarterly compliance reports. Quarterly reports shall be 
submitted by the required deadline as shown in Table 1 of this section. 
Any reports generated by EMTS must be reviewed, supplemented, and/or 
corrected if not complete and accurate, and verified by the owner or 
responsible corporate officer prior to submittal. Table 1 follows:

                            Table 1 to Sec.   80.1451--Quarterly Reporting Deadlines
----------------------------------------------------------------------------------------------------------------
            Calendar quarter                       Time period covered              Quarterly report deadline
----------------------------------------------------------------------------------------------------------------
Quarter 1...............................  January 1-March 31...................  June 1.

[[Page 211]]

 
Quarter 2...............................  April 1-June 30......................  September 1.
Quarter 3...............................  July 1-September 30..................  December 1.
Quarter 4...............................  October 1-December 31................  March 31.
----------------------------------------------------------------------------------------------------------------

    (3) Report certification. Reports required must be signed and 
certified as meeting all the applicable requirements of this subpart by 
the owner or a responsible corporate officer of the submitter.
    (4) Monthly reporting schedule. Any party required to submit 
information or reports on a monthly basis must submit such information 
or reports by the end of the subsequent calendar month.
    (g) Independent third-party auditors. Any independent third-party 
auditor must submit quarterly reports as follows:
    (1) The following information for each verified batch, as 
applicable:
    (i) The audited party's name.
    (ii) The audited party's EPA company registration number.
    (iii) The audited party's EPA facility registration number.
    (iv)(A) The renewable fuel importer's EPA facility registration 
number and foreign renewable fuel producer's company registration 
number.
    (B) The RNG importer's EPA facility registration number and foreign 
RNG producer's company registration number.
    (v) The applicable reporting period.
    (vi) The quantity of RINs generated for each verified batch 
according to Sec. Sec.  80.125, 80.130, and 80.1426.
    (vii) The production date of each verified batch.
    (viii) The D-code of each verified batch.
    (ix) The volume of ethanol denaturant and applicable equivalence 
value of each verified batch.
    (x) The volume of each verified batch produced.
    (xi) The volume and type of each feedstock and biointermediate used 
to produce the verified batch.
    (xii) Whether the feedstocks and biointermediates used to produce 
each verified batch met the definition of renewable biomass.
    (xiii) Whether appropriate RIN generation and verified batch volume 
calculations under this part were followed for each verified batch.
    (xiv) The quantity and type of co-products produced.
    (xv) Invoice document identification numbers associated with each 
verified batch.
    (xvi) Laboratory sample identification numbers for each verified 
batch associated with the generation of any certificates of analysis 
used to verify fuel type and quality.
    (xvii) Any additional information that EPA may require.
    (2) The following aggregate verification information, as applicable:
    (i) The submitting party's name.
    (ii) The submitting party's EPA company registration number.
    (iii) The number of current-year RINs verified at the start of the 
quarter.
    (iv) The number of prior-year RINs verified at the start of the 
quarter.
    (v) The total current-year RINs verified.
    (vi) The number of current-year RINs verified at the end of the 
quarter.
    (vii) A list of all audited facilities, including the EPA's company 
and facility registration numbers, along with the date the independent 
third-party auditor conducted the on-site visit and audit.
    (viii) Mass and energy balances calculated for each audited 
facility.
    (ix) A list of all RINs that were identified as Potentially Invalid 
RINs (PIRs) pursuant to Sec. Sec.  80.185 and 80.1474, along with a 
narrative description of why the RINs were not verified or were 
identified as PIRs.
    (x) A list of all biointermediates that were identified as 
potentially improperly produced biointermediates under Sec.  80.1477(d).
    (xi) A list of all biogas that was identified as potentially 
inaccurate or non-qualifying under Sec.  80.185(b).

[[Page 212]]

    (xii) Any additional information that EPA may require.
    (3) All reports required under this paragraph (g) must be signed and 
certified as meeting all the applicable requirements of this subpart by 
the independent third-party auditor or a responsible corporate officer 
of the independent third-party auditor.
    (h) Producers or importers of renewable fuel made from Arundo donax 
or Pennisetum purpureum per Sec.  80.1426(f)(14) must report all the 
following:
    (1) Any detected growth of Arundo donax or Pennisetum purpureum 
outside the intended planting areas, both surrounding the field of 
production and feedstock storage sites, along the transportation route, 
and around the biofuel production facility, within 5 business days after 
detection and in accordance with the Risk Mitigation Plan, if 
applicable.
    (2) As available, any updated information related to the Risk 
Mitigation Plan, as applicable. An updated Risk Mitigation Plan must be 
approved by EPA in consultation with USDA and as appropriate other 
federal agencies prior to its implementation.
    (3) On an annual basis, a description of and maps or electronic data 
showing the average and total size and prior use of lands planted with 
Arundo donax or Pennisetum purpureum, the average and total size and 
prior use of lands set aside to control the invasive spread of these 
crops, and a description and explanation of any change in land use from 
the previous year.
    (4) On an annual basis, the report from an independent third party 
auditor evaluating monitoring and reporting activities conducted in 
accordance with the Risk Mitigation Plan, as applicable subject to 
approval of a different frequency by the EPA.
    (5) Information submitted pursuant to paragraphs (h)(3) and (h)(4) 
of this section must be submitted as part of the producer or importer's 
fourth quarterly report, which covers the reporting period October-
December, according to the schedule in paragraph (f)(2) of this section.
    (i) Parties that redesignate certified NTDF as MVNRLM diesel fuel 
under Sec.  80.1408 at any time during the compliance period, but do not 
incur an RVO under Sec.  80.1408(a)(2)(i), must submit a report to EPA 
stating that they redesignated certified NTDF to MVNRLM diesel fuel 
during the compliance period, but that their net redesignated volume was 
less than or equal to zero, and they therefore did not incur an RVO for 
the compliance period.
    (j) Biointermediate producers. For each biointermediate production 
facility, any biointermediate producer must submit quarterly reports for 
biointermediate batch production to EPA containing all of the 
information in this paragraph (j).
    (1) Include all the following information for each batch of 
biointermediate produced:
    (i) The biointermediate producer's name.
    (ii) The biointermediate producer's EPA company registration number.
    (iii) The biointermediate producer's EPA facility registration 
number.
    (iv) The applicable compliance period.
    (v) The production date.
    (vi) The batch number.
    (vii) For batches of biointermediates intended for use to produce 
cellulosic biofuels, the adjusted cellulosic content of each batch and 
certification that the cellulosic content of each batch was derived from 
cellulose, hemicellulose, or lignin that was derived from renewable 
biomass.
    (viii) The volume of each batch produced.
    (ix) The types and quantities of feedstocks used.
    (x) The renewable fuel type(s) each batch of biointermediate was 
designated to be used as a feedstock material for.
    (xi) The EPA company registration number and EPA facility 
registration number for each renewable fuel producer or foreign 
renewable fuel producer that received each batch.
    (xii) The percentage of each batch of biointermediate that met the 
definition of renewable biomass and certification that this portion of 
the batch of biointermediate was derived from renewable biomass.
    (xiii) The process(es) and feedstock(s) used and proportion of 
biointermediate volume attributable to each process and feedstock.

[[Page 213]]

    (xiv) The type of co-products produced with each batch.
    (xv) The quantity of co-products produced in each quarter.
    (xvi) Any additional information EPA may require.
    (2) Quarterly reports under this paragraph (j) must be submitted 
according to the schedule in paragraph (f)(2) of this section.
    (k) All reports required under this section shall be submitted on 
forms and following procedures prescribed by EPA.
    (l) English language reports. Any document submitted to EPA under 
this section must be submitted in English, or shall include an English 
translation.

[75 FR 14863, Mar. 26, 2010]

    Editorial Note: For Federal Register citations affecting Sec.  
80.1451, see the List of CFR Sections Affected, which appears in the 
Finding Aids section of the printed volume and at www.govinfo.gov.



Sec.  80.1452  What are the requirements related to the EPA Moderated
Transaction System (EMTS)?

    (a) Each party required to submit information under this section 
must establish an account with the EPA Moderated Transaction System 
(EMTS) at least 60 days prior to engaging in any RIN transactions, or 
July 1, 2010, whichever is later.
    (b) Starting July 1, 2010, each time a domestic or foreign producer 
or importer of renewable fuel assigns RINs to a batch of renewable fuel 
pursuant to Sec.  80.1426(e), all the following information must be 
submitted to EPA via the submitting party's EMTS account within five (5) 
business days of the date of RIN assignment.
    (1) The name of the renewable fuel producer or importer.
    (2) The EPA company registration number of the renewable fuel 
producer or foreign ethanol producer, as applicable.
    (3) The importer's EPA company registration number if applicable.
    (4) The EPA facility registration number of the facility at which 
the renewable fuel producer or foreign ethanol producer produced the 
batch, as applicable.
    (5) The EPA facility registration number of the importer that 
imported the batch, if applicable.
    (6) The D code of RINs generated for the batch.
    (7) The production process(es) used for the batch.
    (8) The production date of the batch.
    (9) The fuel type of the batch.
    (10) The volume of the batch.
    (11) The volume of ethanol denaturant and applicable equivalence 
value of each batch.
    (12) Quantity of RINs generated for the batch.
    (13) The type and quantity of feedstock(s) used for the batch.
    (14) An affirmation that the feedstock(s) used for each batch meets 
the definition of renewable biomass.
    (15) The type and quantity of co-products produced with the batch of 
renewable fuel.
    (16) The type and quantity of each biointermediate used for the 
batch, if applicable.
    (17) The EPA facility registration number of each biointermediate 
production facility at which a biointermediate used for the batch was 
produced, if applicable.
    (18) Any additional information that EPA may require.
    (c) Starting July 1, 2010, each time any party sells, separates, or 
retires RINs generated on or after July 1, 2010, all the following 
information must be submitted to EPA via the submitting party's EMTS 
account within five (5) business days of the reportable event. Starting 
July 1, 2010, each time any party purchases RINs generated on or after 
July 1, 2010, all the following information must be submitted to EPA via 
the submitting party's EMTS account within ten (10) business days of the 
reportable event. The reportable event for a RIN purchase or sale occurs 
on the date of transfer per Sec.  80.1453(a)(4). The reportable event 
for a RIN separation or retirement occurs on the date of separation or 
retirement as described in Sec.  80.1429 or Sec.  80.1434.
    (1) The submitting party's name.
    (2) The submitting party's EPA company registration number.
    (3) The generation year of the RINs.
    (4) The RIN status (Assigned or Separated).

[[Page 214]]

    (5) The D code of the RINs.
    (6) Transaction type (i.e., RIN buy, RIN sell, RIN separation, RIN 
retire).
    (7) The date of transfer per Sec.  80.1453(a)(4), if applicable.
    (8) For a RIN purchase or sale, the trading partner's name.
    (9) For a RIN purchase or sale, the trading partner's EPA company 
registration number.
    (10) For an assigned RIN purchase or sale, the renewable fuel volume 
associated with the sale.
    (11) Quantity of RINs involved in a transaction.
    (12)(i) For transactions through December 31, 2019, the per gallon 
RIN price or the per-gallon price of renewable fuel with RINs included.
    (ii) For transactions on or after January 1, 2020:
    (A) For RIN buy or sell transaction types including assigned RINs, 
the per-gallon RIN price or the per-gallon price of renewable fuel with 
RINs included.
    (B) For RIN buy or sell transaction types including separated RINs, 
the per-gallon RIN price.
    (13) The reason for retiring RINs, separating RINs, buying RINs, or 
selling RINs.
    (14) Any additional information that EPA may require.
    (15) For buy or sell transactions of separated RINs on or after 
January 1, 2020, the mechanism used to purchase the RINs (e.g., spot 
market or fulfilling a term contract).
    (d) All information required under this section shall be submitted 
on forms and following procedures prescribed by EPA.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 79978, Dec. 21, 2010; 
77 FR 1357, Jan. 9, 2012; 84 FR 27024, June 10, 2019; 85 FR 7079, Feb. 
6, 2020; 87 FR 39669, July 1, 2022; 88 FR 44589, July 12, 2023]



Sec.  80.1453  What are the product transfer document (PTD) requirements
for the RFS program?

    (a) On each occasion when any party transfers ownership of neat or 
blended renewable fuels or RNG, except when such fuel is dispensed into 
motor vehicles or nonroad vehicles, engines, or equipment, or separated 
RINs subject to this subpart, the transferor must provide to the 
transferee documents that include all the following information, as 
applicable:
    (1) The name and address of the transferor and transferee.
    (2) The transferor's and transferee's EPA company registration 
numbers.
    (3) The volume of renewable fuel that is being transferred, if any.
    (4) The date of the transfer.
    (5) [Reserved]
    (6) The quantity of RINs being traded.
    (7) The D code of the RINs.
    (8) The RIN status (Assigned or Separated).
    (9) The RIN generation year.
    (10) The associated reason for the sell or buy transaction (e.g., 
standard trade or remedial action).
    (11) Additional RIN-related information, as follows:
    (i) If assigned RINs are being transferred on the same PTD used to 
transfer ownership of the renewable fuel, then the assigned RIN 
information shall be identified on the PTD.
    (A) The identifying information for a RIN that is transferred in 
EMTS generically is the information specified in paragraphs (a)(1) 
through (a)(10) of this section.
    (B) The identifying information for a RIN that is transferred in 
EMTS uniquely is the information specified in paragraphs (a)(1) through 
(a)(10) of this section, the RIN generator company ID, the RIN generator 
facility ID, and the batch number.
    (C) The identifying information for a RIN that is generated prior to 
July 1, 2010, is the 38-digit code pursuant to Sec.  80.1425, in its 
entirety.
    (ii) If assigned RINs are being transferred on a separate PTD from 
that which is used to transfer ownership of the renewable fuel, then the 
PTD which is used to transfer ownership of the renewable fuel shall 
include all the following:
    (A) The number of gallon-RINs being transferred.
    (B) A unique reference to the PTD which is transferring the assigned 
RINs.
    (C) The information specified in paragraphs (a)(11)(i)(A) through 
(a)(11)(i)(C) of this section, as appropriate.
    (iii) If no assigned RINs are being transferred with the renewable 
fuel,

[[Page 215]]

the PTD which is used to transfer ownership of the renewable fuel shall 
state ``No assigned RINs transferred.''.
    (iv) If RINs have been separated from the renewable fuel or fuel 
blend pursuant to Sec.  80.1429(b)(4), then all PTDs which are at any 
time used to transfer ownership of the renewable fuel or fuel blend 
shall state ``This volume of fuel must be used in the designated form, 
without further blending.''.
    (12) For the transfer of renewable fuel or RNG for which RINs were 
generated, an accurate and clear statement on the product transfer 
document of the fuel type from the approved pathway, and designation of 
the fuel use(s) intended by the transferor, as follows:
    (i) Ethanol. ``This volume of neat or blended ethanol is designated 
and intended for use as transportation fuel or jet fuel in the 48 U.S. 
contiguous states and Hawaii. Any person exporting this fuel is subject 
to the requirements of 40 CFR 80.1430.''.
    (ii) Biodiesel. ``This volume of neat or blended biodiesel is 
designated and intended for use as transportation fuel, heating oil or 
jet fuel in the 48 U.S. contiguous states and Hawaii. Any person 
exporting this fuel is subject to the requirements of 40 CFR 80.1430.''.
    (iii) Renewable heating oil. ``This volume of heating oil is 
designated and intended for use as heating oil in the 48 U.S. contiguous 
states and Hawaii. Any person exporting this fuel is subject to the 
requirements of 40 CFR 80.1430.''.
    (iv) Renewable diesel. ``This volume of neat or blended renewable 
diesel is designated and intended for use as transportation fuel, 
heating oil or jet fuel in the 48 U.S. contiguous states and Hawaii. Any 
person exporting this fuel is subject to the requirements of 40 CFR 
80.1430.''.
    (v) Naphtha. ``This volume of neat or blended naphtha is designated 
and intended for use as transportation fuel or jet fuel in the 48 U.S. 
contiguous states and Hawaii. This naphtha may only be used as a 
gasoline blendstock, E85 blendstock, or jet fuel. Any person exporting 
this fuel is subject to the requirements of 40 CFR 80.1430.''.
    (vi) Butanol. ``This volume of neat or blended butanol is designated 
and intended for use as transportation fuel or jet fuel in the 48 U.S. 
contiguous states and Hawaii. This butanol may only be used as a 
gasoline blendstock or jet fuel. Any person exporting this fuel is 
subject to the requirements of 40 CFR 80.1430.''.
    (vii) Renewable fuels other than ethanol, biodiesel, heating oil, 
renewable diesel, naptha or butanol. ``This volume of neat or blended 
renewable fuel is designated and intended to be used as transportation 
fuel, heating oil, or jet fuel in the 48 U.S. contiguous states and 
Hawaii. Any person exporting this fuel is subject to the requirements of 
40 CFR 80.1430.''.
    (viii) RNG. ``This volume of RNG is designated and intended for 
transportation use in the 48 U.S. contiguous states and Hawaii or as a 
feedstock to produce a renewable fuel and may not be used for any other 
purpose. Any person exporting this fuel is subject to the requirements 
of 40 CFR 80.1430. Assigned RINs to this volume of RNG must not be 
separated unless the RNG is used as transportation fuel in the 48 U.S. 
contiguous states and Hawaii.''
    (b) Except for transfers to truck carriers, retailers, or wholesale 
purchaser-consumers, product codes may be used to convey the information 
required under paragraphs (a)(1) through (11) and (e) of this section if 
such codes are clearly understood by each transferee.
    (c) For renewable fuel, other than ethanol, that is not registered 
as motor vehicle fuel under 40 CFR Part 79, the PTD which is used to 
transfer ownership of the renewable fuel shall state ``This volume of 
renewable fuel may not be used as a motor vehicle fuel.''
    (d) For fuel oil meeting paragraph (2) of the definition of 
``heating oil'' in Sec.  80.2, the PTD of the fuel oil shall state: 
``This volume of renewable fuel oil is designated and intended to be 
used to heat or cool interior spaces of homes or buildings to control 
ambient climate for human comfort. Do NOT use for process heat or 
cooling or any other purpose, as these uses are prohibited pursuant to 
40 CFR 80.1460(g).''.
    (e) Beginning January 1, 2021, on each occasion when any party 
transfers custody or ownership of certified NTDF, except when such fuel 
is dispensed into motor vehicles or nonroad vehicles, engines, or 
equipment, the transferor

[[Page 216]]

must provide to the transferee documents that include all the following 
information, as applicable:
    (1) The transferor of certified NTDF must list all applicable 
required information as specified at 40 CFR 1090.1115 and, if the 
distillate fuel contains renewable fuel, all applicable required 
information in paragraphs (a), (b), and (d) of this section.
    (2) The transferor must include the following statement on the PTD: 
``15 ppm sulfur (maximum) certified NTDF--This fuel is designated for 
non-transportation use.''
    (f)(1) On each occasion when any party transfers title or custody of 
a biointermediate, the transferor must provide to the transferee 
documents that include all of the following information:
    (i) The name and address of the transferor and transferee.
    (ii) The transferor's and transferee's EPA company registration and 
applicable facility registration numbers.
    (iii) The volume of biointermediate that is being transferred.
    (iv) The date of the transfer.
    (v) The location of the biointermediate at the time of the transfer.
    (vi) The following statement designating the volume of 
biointermediate as feedstock for the production of a renewable fuel: 
``This volume is designated and intended for use as biointermediate in 
the production of renewable fuel as defined in Sec.  80.2. Parties may 
not generate RINs on this feedstock material and it must remain 
segregated from all products until received by a designated renewable 
fuel production facility.''
    (vii) For biogas designated for use as a biointermediate, any 
applicable PTD requirements under Sec.  80.150.
    (2) In addition to the information specified in paragraph (f)(1) of 
this section, on each occasion when any party transfers title of a 
biointermediate or when any party transfers a biointermediate to a 
renewable fuel production facility, the transferor must provide to the 
transferee documents that include all of the following information:
    (i) The renewable fuel type the biointermediate was designated to be 
used as a feedstock material for by the biointermediate producer under 
Sec.  80.1476(i).
    (ii) The composition of the biointermediate being transferred, 
including:
    (A) The type and quantity of each feedstock that was used to make 
the biointermediate.
    (B) The percentage of each feedstock that is renewable biomass, 
rounded to two decimal places.
    (C) For a biointermediate that contains both renewable and non-
renewable feedstocks:
    (1) The percentage of each feedstock that is not renewable biomass, 
rounded to two decimal places.
    (2) The feedstock energy from the renewable biomass used to make the 
biointermediate, in Btu.
    (3) The feedstock energy from the non-renewable biomass used to make 
the biointermediate, in Btu.
    (4) The total percentage of the biointermediate that may generate 
RINs, rounded to two decimal places.
    (5) The total percentage of the biointermediate that may not 
generate RINs, rounded to two decimal places.
    (D) For a biointermediate that contains cellulosic material:
    (1) The percentage of each feedstock that is cellulosic, rounded to 
two decimal places.
    (2) The percentage of each feedstock that is non-cellulosic, rounded 
to two decimal places, if applicable.
    (3) If the biointermediate is intended for use in the production of 
a cellulosic biofuel, the total percentage of the biointermediate that 
may generate cellulosic RINs, rounded to two decimal places.
    (4) For separated municipal solid waste, the cellulosic portion of 
the biointermediate is equivalent to the biogenic portion.
    (5) For separated food waste, the non-cellulosic percentage is 
assumed to be zero percent unless it is demonstrated to be partially 
cellulosic.
    (6) For separated yard waste, 100% of separated yard waste is deemed 
to be cellulosic.
    (7) The following statement: ``I certify that the cellulosic content 
of this feedstock was derived from cellulose, hemicellulose, or lignin 
that was derived from renewable biomass.''

[[Page 217]]

    (iii) Copies of records specified in Sec.  80.1454(i)(3), (5), and 
(6) for the volume being transferred, as applicable.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26045, May 10, 2010; 78 
FR 62471, Oct. 22, 2013; 79 FR 42118, July 18, 2014; 81 FR 23645, Apr. 
22, 2016; 85 FR 7079, Feb. 6, 2020; 85 FR 78467, Dec. 4, 2020; 87 FR 
39669, July 1, 2022; 88 FR 44589, July 12, 2023]



Sec.  80.1454  What are the recordkeeping requirements under the RFS
program?

    (a) Requirements for obligated parties and exporters of renewable 
fuel. Beginning July 1, 2010, any obligated partyor exporter of 
renewable fuel must keep all of the following records:
    (1) Product transfer documents consistent with Sec.  80.1453 and 
associated with the obligated party's or exporter of renewable fuel's 
activity, if any, as transferor or transferee of renewable fuel or 
separated RINs.
    (2) Copies of all reports submitted to EPA under Sec.  80.1451(a), 
as applicable.
    (3) Records related to each RIN transaction, including all of the 
following:
    (i) A list of the RINs owned, purchased, sold, separated, retired, 
or reinstated.
    (ii) The parties involved in each RIN transaction including the 
transferor, transferee, and any broker or agent.
    (iii) The date of the transfer of the RIN(s).
    (iv) Additional information, including contracts, correspondence, 
and invoices, related to details of the RIN transaction and its terms.
    (4) Records related to the use of RINs (by facility, if applicable) 
for compliance, including all of the following:
    (i) Methods and variables used to calculate the Renewable Volume 
Obligations pursuant to Sec.  80.1407 or Sec.  80.1430.
    (ii) List of RINs used to demonstrate compliance.
    (iii) Additional information related to details of RIN use for 
compliance.
    (5) Records related to the separation of assigned RINs from 
renewable fuel volume.
    (6) For exported renewable fuel, invoices, bills of lading and other 
documents describing the exported renewable fuel.
    (i) For exporters of renewable fuel for which no RINs were 
generated, an affidavit signed by the producer of the exported renewable 
fuel affirming that no RINs were generated for that volume of renewable 
fuel.
    (ii) [Reserved]
    (7) Any obligated party that uses the provisions of Sec.  80.1444 
for a small refinery must keep the following records:
    (i) Copies of any notifications submitted to EPA under Sec.  
80.1444(e)(2).
    (ii) Copies of the methods and variables used to calculate the 
number of RINs retired for the alternative RIN retirement schedule under 
Sec.  80.1444(f).
    (b) Requirements for all producers of renewable fuel. Beginning July 
1, 2010, any domestic or RIN-generating foreign producer of a renewable 
fuel must keep all of the following records in addition to those 
required under paragraphs (c) or (d) of this section:
    (1) Product transfer documents consistent with Sec.  80.1453 and 
associated with the renewable fuel producer's activity, if any, as 
transferor or transferee of renewable fuel or separated RINs.
    (2) Copies of all reports submitted to EPA under Sec. Sec.  80.1449 
and 80.1451(b).
    (3) Records related to the generation and assignment of RINs for 
each facility, including all of the following:
    (i) Batch volume in gallons.
    (ii) Batch number.
    (iii) RIN as assigned under Sec.  80.1426, if applicable.
    (iv) Identification of batches by renewable category.
    (v) Type and quantity of co-products produced.
    (vi) Type and quantity of feedstocks used.
    (vii) Type and quantity of biointermediates used.
    (viii) Type and quantity of fuel used for process heat.
    (ix) All facility-determined values used in the calculations under 
Sec.  80.1426(f)(4) and the data used to obtain those values.
    (x) Date of production.
    (xi) Results of any laboratory analysis of batch chemical 
composition or physical properties.
    (xii) For RINs generated for ethanol produced from corn starch at a 
facility using an approved pathway that requires the use of one or more 
of the advanced technologies listed in Table 2 to

[[Page 218]]

Sec.  80.1426, documentation to demonstrate that employment of the 
required advanced technology or technologies was conducted in accordance 
with the specifications in the approved pathway and Table 2 to Sec.  
80.1426, including any requirement for application to 90% of the 
production on a calendar year basis.
    (xiii) All commercial documents and additional information related 
to details of RIN generation.
    (4) Records related to each RIN transaction, separately for each 
transaction, including all of the following:
    (i) A list of the RINs owned, purchased, sold, separated, retired, 
or reinstated.
    (ii) The parties involved in each transaction including the 
transferor, transferee, and any broker or agent.
    (iii) The date of the transfer of the RIN(s).
    (iv) Additional information related to details of the transaction 
and its terms.
    (5) Records related to the production, importation, ownership, sale 
or use of any volume of renewable fuel for which RINs were generated or 
blend of renewable fuel for which RINs were generated and gasoline or 
diesel fuel that any party designates for use as transportation fuel, 
jet fuel, or heating oil and the use of the fuel or blend as 
transportation fuel, jet fuel, or heating oil without further blending, 
in the designated form.
    (6) Copies of registration documents required under Sec.  80.1450, 
including information on fuels and products, feedstocks, 
biointermediates, facility production processes, process changes, and 
capacity, energy sources, and a copy of the independent third party 
engineering review report submitted to EPA per Sec.  80.1450(b)(2).
    (7) For any producer of renewable fuel made from Arundo donax or 
Pennisetum purpureum per Sec.  80.1426(f)(14), all the following:
    (i) Records related to all requirements and duties set forth in the 
registration documents described in Sec.  80.1450(b)(1)(x)(A), including 
but not limited to the Risk Mitigation Plan, monitoring records and 
reports, and adherence to state, local and federal invasive species 
requirements and permits.
    (ii) Records associated with feedstock purchases and transfers that 
identify where the feedstocks were produced and are sufficient to verify 
that feedstocks used were produced and transported in accordance with an 
EPA approved Risk Mitigation Plan or were produced on land that the EPA 
determined does not present a significant likelihood of invasive spread 
beyond the planting area of the feedstock used for production of the 
renewable fuel, including all the following:
    (A) Maps or electronic data identifying the boundaries of the land 
where each type of feedstock was produced.
    (B) Bills of lading, product transfer documents, or other commercial 
documents showing the quantity of feedstock purchased from each area 
identified above, and showing each transfer of custody of the feedstock 
from the location where it was produced to the renewable fuel production 
facility.
    (8) A producer of fuel oil meeting paragraph (2) of the definition 
of heating oil in Sec.  80.2 shall keep copies of all contracts which 
describe the fuel oil under contract with each end user.
    (9) Records, including contracts, related to the implementation of a 
QAP under Sec.  80.1469.
    (10) Records related to any volume of renewable fuel where RINs were 
not generated by the renewable fuel producer or importer pursuant to 
Sec.  80.1426(c).
    (c) Additional requirements for imports of renewable fuel. (1) 
Beginning July 1, 2010, any RIN-generating foreign producer of a 
renewable fuel or RIN-generating importer must keep records of feedstock 
purchases and transfers associated with renewable fuel for which RINs 
are generated, sufficient to verify that feedstocks used are renewable 
biomass.
    (i) RIN-generating foreign producers and importers of renewable fuel 
made from feedstocks that are planted crops or crop residue from 
existing foreign agricultural land, planted trees or tree residue from 
actively managed tree plantations, slash and pre-commercial thinnings 
from forestlands or biomass obtained from wildland-urban interface must 
maintain all the following

[[Page 219]]

records to verify the location where these feedstocks were produced:
    (A) Maps or electronic data identifying the boundaries of the land 
where each type of feedstock was produced.
    (B) Bills of lading, product transfer documents, or other commercial 
documents showing the quantity of feedstock purchased from each area 
identified in paragraph (c)(1)(i)(A) of this section, and showing each 
transfer of custody of the feedstock from the location where it was 
produced to the renewable fuel production facility.
    (ii)(A) RIN-generating foreign producers and importers of renewable 
fuel made from planted crops or crop residue from existing foreign 
agricultural land must keep records that serve as evidence that the land 
from which the feedstock was obtained was cleared or cultivated prior to 
December 19, 2007 and actively managed or fallow, and nonforested on 
December 19, 2007. RIN-generating foreign producers or importers of 
renewable fuel made from planted trees or tree residue from actively 
managed tree plantations must keep records that serve as evidence that 
the land from which the feedstock was obtained was cleared prior to 
December 19, 2007 and actively managed on December 19, 2007.
    (B) The records must be provided by the feedstock producer, 
traceable to the land in question, and consist of at least one of the 
following documents:
    (1) Sales records for planted crops or trees, crop or tree residue, 
or livestock; purchasing records for fertilizer, weed control, or 
reseeding, including seeds, seedlings, or other nursery stock.
    (2) A written management plan for agricultural or silvicultural 
purposes; documentation of participation in an agricultural or 
silvicultural program sponsored by a Federal, state, or local government 
agency.
    (3) Documentation of land management in accordance with an 
agricultural or silvicultural product certification program, an 
agreement for land management consultation with a professional forester 
that identifies the land in question.
    (4) Evidence of the existence and ongoing maintenance of a road 
system or other physical infrastructure designed and maintained for 
logging use, together with one of the aforementioned documents in this 
paragraph (c)(1)(ii)(B).
    (iii) RIN-generating foreign producers and importers of renewable 
fuel made from any other type of renewable biomass must have documents 
from their feedstock supplier certifying that the feedstock qualifies as 
renewable biomass, describing the feedstock and identifying the process 
that was used to generate the feedstock.
    (2) Beginning July 1, 2010, any RIN-generating importer of renewable 
fuel must keep all of the following records:
    (i) Product transfer documents consistent with Sec.  80.1453 and 
associated with the renewable fuel importer's activity, if any, as 
transferor or transferee of renewable fuel.
    (ii) Copies of all reports submitted to EPA under Sec. Sec.  80.1449 
and 80.1451(b).
    (iii) Records related to the generation and assignment of RINs for 
each facility, including all of the following:
    (A) Batch volume in gallons.
    (B) Batch number.
    (C) RIN as assigned under Sec.  80.1426.
    (D) Identification of batches by renewable category.
    (E) Type and quantity of feedstocks used.
    (F) Type and quantity of fuel used for process heat.
    (G) Date of import.
    (H) Results of any laboratory analysis of batch chemical composition 
or physical properties.
    (I) The EPA registration number of the foreign renewable fuel 
producers producing the fuel.
    (J) Additional information related to details of RIN generation.
    (iv) Records related to each RIN transaction, including all of the 
following:
    (A) A list of the RINs owned, purchased, sold, separated, retired, 
or reinstated.
    (B) The parties involved in each transaction including the 
transferor, transferee, and any broker or agent.
    (C) The date of the transfer of the RIN(s).
    (D) Additional information related to details of the transaction and 
its terms.
    (v) Copies of registration documents required under Sec.  80.1450.

[[Page 220]]

    (vi) Records related to the import of any volume of renewable fuel 
that the importer designates for use as transportation fuel, jet fuel, 
or heating oil.
    (vii) For renewable fuel or biointermediate produced from a type of 
renewable biomass not specified in paragraphs (c)(1)(i) through (vi) of 
this section, documents from their feedstock suppliers and feedstock 
aggregators, as applicable, certifying that the feedstock qualifies as 
renewable biomass, describing the feedstock.
    (3) Producers of renewable fuel or biointermediate produced from 
separated yard and food waste, biogenic oils/fats/greases, or separated 
MSW must comply with either the recordkeeping requirements in paragraph 
(j) of this section or the alternative recordkeeping requirements in 
Sec.  80.1479.
    (d) Additional requirements for domestic producers of renewable 
fuel. (1) Except as provided in paragraphs (g) and (h) of this section, 
any domestic producer of renewable fuel that generates RINs for such 
fuel must keep documents associated with feedstock purchases and 
transfers that identify where the feedstocks were produced and are 
sufficient to verify that feedstocks used are renewable biomass if RINs 
are generated.
    (2) Domestic producers of renewable fuel made from feedstocks that 
are planted trees or tree residue from actively managed tree 
plantations, slash and pre-commercial thinnings from forestlands or 
biomass obtained from areas at risk of wildfire must maintain all the 
following records to verify the location where these feedstocks were 
produced:
    (i) Maps or electronic data identifying the boundaries of the land 
where each type of feedstock was produced.
    (ii) Bills of lading, product transfer documents or other commercial 
documents showing the quantity of feedstock purchased from each area 
identified in paragraph (d)(2)(i) of this section, and showing each 
transfer of custody of the feedstock from the location where it was 
produced to the renewable fuel production facility.
    (3) Domestic producers of renewable fuel made from planted trees or 
tree residue from actively managed tree plantations must keep records 
that serve as evidence that the land from which the feedstock was 
obtained was cleared prior to December 19, 2007 and actively managed on 
December 19, 2007. The records must be provided by the feedstock 
producer and must include at least one of the following documents, which 
must be traceable to the land in question:
    (i) Sales records for planted trees or tree residue.
    (ii) Purchasing records for fertilizer, weed control, or reseeding, 
including seeds, seedlings, or other nursery stock.
    (iii) A written management plan for silvicultural purposes.
    (iv) Documentation of participation in a silvicultural program 
sponsored by a Federal, state, or local government agency.
    (v) Documentation of land management in accordance with a 
silvicultural product certification program, an agreement for land 
management consultation with a professional forester.
    (vi) Evidence of the existence and ongoing maintenance of a road 
system or other physical infrastructure designed and maintained for 
logging use, together with one of the aforementioned documents.
    (4) Domestic producers of renewable fuel made from planted crops or 
crop residue from existing foreign agricultural land must keep all the 
following records:
    (i) Records that serve as evidence that the land from which the 
feedstock was obtained was cleared or cultivated prior to December 19, 
2007 and actively managed or fallow, and nonforested on December 19, 
2007. The records must be provided by the feedstock producer and must 
include at least one of the following documents, which must be traceable 
to the land in question:
    (A) Sales records for planted crops, crop residue, or livestock.
    (B) Purchasing records for fertilizer, weed control, seeds, 
seedlings, or other nursery stock.
    (C) A written management plan for agricultural purposes.
    (D) Documentation of participation in an agricultural program 
sponsored by a Federal, State, or local government agency.

[[Page 221]]

    (E) Documentation of land management in accordance with an 
agricultural product certification program.
    (ii) Records to verify the location where the feedstocks were 
produced:
    (A) Maps or electronic data identifying the boundaries of the land 
where each type of feedstock was produced; and
    (B) Bills of lading, product transfer documents or other commercial 
documents showing the quantity of feedstock purchased from each area 
identified in paragraph (d)(4)(ii)(A) of this section, and showing each 
transfer of custody of the feedstock from the location where it was 
produced to the renewable fuel facility.
    (5) Domestic producers of renewable fuel or biointermediates 
produced from a type of renewable biomass not specified in paragraphs 
(d)(2) through (4) of this section must have documents from their 
feedstock suppliers and feedstock aggregators, as applicable, certifying 
that the feedstock qualifies as renewable biomass, describing the 
feedstock.
    (6) Producers of renewable fuel or biointermediate produced from 
separated yard and food waste, biogenic oils/fats/greases, or separated 
MSW must comply with either the recordkeeping requirements in paragraph 
(j) of this section or the alternative recordkeeping requirements in 
Sec.  80.1479.
    (e) Additional requirements for producers of fuel exempt from the 
20% GHG reduction requirement. Beginning July 1, 2010, any production 
facility with a baseline volume of fuel that is not subject to the 20% 
GHG threshold, pursuant to Sec.  80.1403(c) and (d), must keep all of 
the following:
    (1) Detailed engineering plans for the facility.
    (2) Federal, State, and local (or foreign governmental) 
preconstruction approvals and permitting.
    (3) Procurement and construction contracts and agreements.
    (f) Requirements for other parties that own RINs. Beginning July 1, 
2010, any party, other than those parties covered in paragraphs (a) and 
(b) of this section, that owns RINs must keep all of the following 
records:
    (1) Product transfer documents consistent with Sec.  80.1453 and 
associated with the party's activity, if any, as transferor or 
transferee of renewable fuel or separated RINs.
    (2) Copies of all reports submitted to EPA under Sec.  80.1451(c).
    (3) Records related to each RIN transaction by renewable fuel 
category, including all of the following:
    (i) A list of the RINs owned, purchased, sold, separated, retired, 
or reinstated.
    (ii) The parties involved in each RIN transaction including the 
transferor, transferee, and any broker or agent.
    (iii) The date of the transfer of the RIN(s).
    (iv) Additional information related to details of the transaction 
and its terms.
    (4) Records related to any volume of renewable fuel that the party 
designated for use as transportation fuel, jet fuel, or heating oil and 
from which RINs were separated pursuant to Sec.  80.1429(b)(4).
    (g) Aggregate compliance with renewable biomass requirement. Any 
producer or RIN-generating importer of renewable fuel made from planted 
crops or crop residue from existing U.S. agricultural land as defined in 
Sec.  80.1401, or from planted crops or crop residue from existing 
agricultural land in a country covered by a petition approved pursuant 
to Sec.  80.1457, is covered by the aggregate compliance approach and is 
not subject to the recordkeeping requirements for planted crops and crop 
residue at Sec.  80.1454(g)(2) unless EPA publishes a finding that the 
2007 baseline amount of agricultural land in the U.S. has been exceeded 
or, for the aggregate compliance approach in a foreign country, that the 
withdrawal of EPA approval of the aggregate compliance approach is 
warranted pursuant to Sec.  80.1457(e).
    (1) EPA will make findings concerning whether the 2007 baseline 
amount of agricultural land in the U.S. or other country covered by a 
petition approved pursuant to Sec.  80.1457 has been exceeded and will 
publish these findings in the Federal Register by November 30 of the 
year preceding the compliance period.
    (2) If EPA finds that the 2007 baseline amount of agricultural land 
in the U.S. or other country covered by a petition approved pursuant to 
Sec.  80.1457 has been

[[Page 222]]

exceeded, beginning on the first day of July of the compliance period in 
question any producer or RIN-generating importer of renewable fuel made 
from planted crops or crop residue in the country for which such a 
finding is made must keep all the following records:
    (i) Records that serve as evidence that the land from which the 
feedstock was obtained was cleared or cultivated prior to December 19, 
2007 and actively managed or fallow, and nonforested on December 19, 
2007. The records must be provided by the feedstock producer and must 
include at least one of the following documents, which must be traceable 
to the land in question:
    (A) Sales records for planted crops, crop residue or livestock.
    (B) Purchasing records for fertilizer, weed control, seeds, 
seedlings, or other nursery stock.
    (C) A written management plan for agricultural purposes.
    (D) Documentation of participation in an agricultural program 
sponsored by a Federal, state, or local government agency.
    (E) Documentation of land management in accordance with an 
agricultural product certification program.
    (ii) Records to verify the location where the feedstocks were 
produced:
    (A) Maps or electronic data identifying the boundaries of the land 
where each type of feedstock was produced; and
    (B) Bills of lading, product transfer documents or other commercial 
documents showing the quantity of feedstock purchased from each area 
identified in paragraph (g)(2)(ii)(A) of this section, and showing each 
transfer of custody of the feedstock from the location where it was 
produced to the renewable fuel facility.
    (h) Alternative renewable biomass tracking requirement. Any foreign 
or domestic renewable fuel producer or RIN-generating importer may 
comply with the following alternative renewable biomass tracking 
requirement instead of the recordkeeping requirements in paragraphs 
(c)(1), (d), and (g) of this section:
    (1) To comply with the alternative renewable biomass tracking 
requirement under this paragraph (h), a renewable fuel producer or 
importer must either arrange to have an independent third party conduct 
a comprehensive program of annual compliance surveys, or participate in 
the funding of an organization which arranged to have an independent 
third party conduct a comprehensive program of annual compliance 
surveys, to be carried out in accordance with a survey plan which has 
been approved by EPA.
    (2) The annual compliance surveys under this paragraph (h) must be 
all the following:
    (i) Planned and conducted by an independent surveyor that meets the 
requirements in 40 CFR 1090.55.
    (ii) Conducted at renewable fuel production and import facilities 
and their feedstock suppliers.
    (iii) Representative of all renewable fuel producers and importers 
in the survey area and representative of their feedstock suppliers.
    (iv) Designed to achieve at least the same level of quality 
assurance required in paragraphs (c)(1), (d) and (g) of this section.
    (3) The compliance survey program shall require the independent 
surveyor conducting the surveys to do all the following:
    (i) Conduct feedstock audits of renewable fuel production and import 
facilities in accordance with the survey plan approved under this 
paragraph (h), or immediately notify EPA of any refusal of these 
facilities to allow an audit to be conducted.
    (ii) Obtain the records and product transfer documents associated 
with the feedstocks being audited.
    (iii) Determine the feedstock supplier(s) that supplied the 
feedstocks to the renewable fuel producer.
    (iv) Confirm that feedstocks used to produce RIN-generating 
renewable fuels meet the definition of renewable biomass.
    (v) Immediately notify EPA of any case where the feedstocks do not 
meet the definition of renewable biomass.
    (vi) Immediately notify EPA of any instances where a renewable fuel 
producer, importer or feedstock supplier subject to review under the 
approved plan fails to cooperate in the manner described in this 
section.

[[Page 223]]

    (vii) Submit to EPA a report of each survey, within thirty days 
following the completion of each survey, such report to include all the 
following information:
    (A) The identification of the person who conducted the survey.
    (B) An attestation by the officer of the surveyor company that the 
survey was conducted in accordance with the survey plan and the survey 
results are accurate.
    (C) Identification of the parties for whom the survey was conducted.
    (D) Identification of the covered area surveyed.
    (E) The dates on which the survey was conducted.
    (F) The address of each facility at which the survey audit was 
conducted and the date of the audit.
    (G) A description of the methodology used to select the locations 
for survey audits and the number of audits conducted.
    (viii) Maintain all records relating to the survey audits conducted 
under this section (h) for a period of at least 5 years.
    (ix) At any time permit any representative of EPA to monitor the 
conduct of the surveys, including observing audits, reviewing records, 
and analysis of the audit results.
    (4) A survey plan under this paragraph (h) must include all the 
following:
    (i) Identification of the parties for whom the survey is to be 
conducted.
    (ii) Identification of the independent surveyor.
    (iii) A methodology for determining all the following:
    (A) When the audits will be conducted.
    (B) The audit locations.
    (C) The number of audits to be conducted during the annual 
compliance period.
    (iv) Any other elements determined by EPA to be necessary to achieve 
the level of quality assurance required under paragraphs (c)(1), (d), 
and (g) of this section.
    (5)(i) Each renewable fuel producer and importer who participates in 
the alternative renewable biomass tracking under this paragraph (h) must 
take all reasonable steps to ensure that each feedstock producer, 
aggregator, distributor, or supplier cooperates with this program by 
allowing the independent surveyor to audit their facility and by 
providing to the independent surveyor and/or EPA, upon request, copies 
of management plans, product transfer documents, and other records or 
information regarding the source of any feedstocks received.
    (ii) Reasonable steps under paragraph (h)(5)(i) of this section must 
include, but typically should not be limited to: Contractual agreements 
with feedstock producers, aggregators, distributors, and suppliers, 
which require them to cooperate with the independent surveyor and/or EPA 
in the manner described in paragraph (h)(5)(i) of this section.
    (6) The procedure for obtaining EPA approval of a survey plan under 
this paragraph (h), and for revocation of any such approval, are as 
follows:
    (i) A detailed survey plan which complies with the requirements of 
this paragraph (h) must be submitted to EPA, no later than September 1 
of the year preceding the calendar year in which the surveys will be 
conducted.
    (ii) The survey plan must be signed by a responsible corporate 
officer of the renewable fuel producer or importer, or responsible 
officer of the organization which arranges to have an independent 
surveyor conduct a program of renewable biomass compliance surveys, as 
applicable.
    (iii) The survey plan must be sent to the attention of ``RFS 
Program'' to the address in Sec.  80.10(a).
    (iv) EPA will send a letter to the party submitting a survey plan 
under this section, either approving or disapproving the survey plan.
    (v) EPA may revoke any approval of a survey plan under this section 
for cause, including an EPA determination that the approved survey plan 
had proved inadequate in practice or that it was not fully implemented.
    (7)(i) No later than December 1 of the year preceding the year in 
which the surveys will be conducted, the contract with the independent 
surveyor shall be in effect, and an amount of money necessary to carry 
out the entire survey plan shall be paid to the independent

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surveyor or placed into an escrow account with instructions to the 
escrow agent to pay the money to the independent surveyor during the 
course of the conduct of the survey plan.
    (ii) No later than December 15 of the year preceding the year in 
which the surveys will be conducted, EPA must receive a copy of the 
contract with the independent surveyor, proof that the money necessary 
to carry out the survey plan has either been paid to the independent 
surveyor or placed into an escrow account, and, if placed into an escrow 
account, a copy of the escrow agreement, to be sent to the official 
designated in paragraph (h)(6)(iii) of this section.
    (8) A failure of any renewable fuel producers or importer to fulfill 
or cause to be fulfilled any of the requirements of this paragraph (h) 
will cause the option for such party to use the alternative quality 
assurance requirements under this paragraph (h) to be void ab initio.
    (i) Requirements for biointermediate producers. In addition to any 
other applicable records a biointermediate producer must maintain under 
this section, any biointermediate producer producing a biointermediate 
must keep all of the following records:
    (1) Product transfer documents consistent with Sec.  80.1453(f) and 
associated with the biointermediate producer's activities, if any, as 
transferor or transferee of biointermediates.
    (2) Copies of all reports submitted to EPA under Sec.  80.1451(i).
    (3) Records related to the production of biointermediates for each 
biointermediate production facility, including all of the following:
    (i) Batch volume.
    (ii) Batch number.
    (iii) Type and quantity of co-products produced.
    (iv) Type and quantity of feedstocks used.
    (v) Type and quantity of fuel used for process heat.
    (vi) Calculations per Sec.  80.1426(f), as applicable.
    (vii) Date of production.
    (viii) Results of any laboratory analysis of batch chemical 
composition or physical properties.
    (4) Copies of registration documents required under Sec.  80.1450, 
including information on products, feedstocks, facility production 
processes, process changes, and capacity, energy sources, and a copy of 
the independent third party engineering review submitted to EPA per 
Sec.  80.1450(b)(2)(i).
    (5) Records demonstrating that feedstocks are renewable biomass, as 
required under paragraphs (d), (g), (h), and (j) of this section, as 
applicable.
    (6) For any biointermediate made from Arundo donax or Pennisetum 
purpureum per Sec.  80.1426(f)(14), all applicable records described in 
paragraph (b)(7) of this section.
    (7) Records, including contracts, related to the implementation of a 
QAP under Sec. Sec.  80.1469 and 80.1477.
    (j) Additional requirements for producers that use separated yard 
waste, separate food waste, separated MSW, or biogenic waste oils/fats/
greases. Except for parties complying with the alternative recordkeeping 
requirements in Sec.  80.1479, a renewable fuel or biointermediate 
producer that produces fuel or biointermediate from separated yard 
waste, separated food waste, separated MSW, or biogenic waste oils/fats/
greases must keep all the following additional records:
    (1) For separated yard waste, separated food waste, and biogenic 
waste oils/fats/greases:
    (i) Documents demonstrating the amounts, by weight, purchased of 
separated yard waste, separated food waste, or biogenic waste oils/fats/
greases for use as a feedstock in producing renewable fuel.
    (ii) Documents demonstrating the location of any establishment(s) 
from which the waste stream consisting solely of separated yard waste, 
separated food waste, or biogenic waste oils/fats/greases is collected.
    (iii) Such other records as may be requested by EPA.
    (2) For separated municipal solid waste:
    (i) Contracts and documents memorializing the sale of paper, 
cardboard, plastics, rubber, textiles, metals, and glass separated from 
municipal solid waste for recycling.
    (ii) Documents demonstrating the amounts by weight purchased of 
post-

[[Page 225]]

recycled separated yard and food waste for use as a feedstock in 
producing renewable fuel.
    (iii) Documents demonstrating the fuel sampling methods used 
pursuant to Sec.  80.1426(f)(9) and the results of all fuel analyses to 
determine the non-fossil fraction of fuel made from separated municipal 
solid waste.
    (iv) Such other records as may be requested by EPA.
    (k) Additional requirements for producers of renewable fuel using 
biogas. (1) Biogas/CNG/LNG and electricity in pathways involving 
feedstocks other than grain sorghum. A renewable fuel producer that 
generates RINs for renewable CNG, renewable LNG or renewable electricity 
pursuant to Sec.  80.1426(f)(10) or (11), or that uses process heat from 
biogas to produce renewable fuel pursuant to Sec.  80.1426(f)(12) shall 
keep all of the following additional records:
    (i) Documentation recording the sale of renewable CNG, renewable LNG 
or renewable electricity for use as transportation fuel relied upon in 
Sec.  80.1426(f)(10), Sec.  80.1426(f)(11), or for use of biogas for 
process heat to make renewable fuel as relied upon in Sec.  
80.1426(f)(12) and the transfer of title of the biogas/CNG/LNG or 
renewable electricity from the point of biogas production to the 
facility which sells or uses the fuel for transportation purposes.
    (ii) Documents demonstrating the volume and energy content of 
biogas/CNG/LNG, or kilowatts of renewable electricity, relied upon under 
Sec.  80.1426(f)(10) that was delivered to the facility which sells or 
uses the fuel for transportation purposes.
    (iii) Documents demonstrating the volume and energy content of 
biogas/CNG/LNG, or kilowatts of renewable electricity, relied upon under 
Sec.  80.1426(f)(11), or biogas relied upon under Sec.  80.1426(f)(12) 
that was placed into the commercial distribution.
    (iv) Documents demonstrating the volume and energy content of biogas 
relied upon under Sec.  80.1426(f)(12) at the point of distribution.
    (v) Affidavits, EPA-approved documentation, or data from a real-time 
electronic monitoring system, confirming that the amount of the biogas/
CNG/LNG or renewable electricity relied upon under Sec.  80.1426(f)(10) 
and (11) was used for transportation purposes only, and for no other 
purpose. The RIN generator shall obtain affidavits, or monitoring system 
data under this paragraph (k), at least once per calendar quarter.
    (vi) The biogas or renewable electricity producer's Compliance 
Certification required under Title V of the Clean Air Act.
    (vii) Any other records as requested by EPA.
    (2) Biogas and electricity in pathways involving grain sorghum as 
feedstock. A renewable fuel producer that produces fuel pursuant to a 
pathway that uses grain sorghum as a feedstock must keep all the 
following additional records, as appropriate:
    (i) Contracts and documents memorializing the purchase and sale of 
biogas and the transfer of biogas from the point of generation to the 
ethanol production facility.
    (ii) If the advanced biofuel pathway is used, documents 
demonstrating the total kilowatt-hours (kWh) of electricity used from 
the grid, and the total kWh of grid electricity used on a per gallon of 
ethanol basis, pursuant to Sec.  80.1426(f)(13).
    (iii) Affidavits from the biogas producer used at the facility, and 
all parties that held title to the biogas, confirming that title and 
environmental attributes of the biogas relied upon under Sec.  
80.1426(f)(13) were used for producing ethanol at the renewable fuel 
production facility and for no other purpose. The renewable fuel 
producer must obtain these affidavits for each quarter.
    (iv) The biogas producer's Compliance Certification required under 
Title V of the Clean Air Act.
    (v) Such other records as may be requested by EPA.
    (l) Additional requirements for producers or importers of any 
renewable fuel other than ethanol, biodiesel, renewable gasoline, 
renewable diesel, biogas-derived renewable fuel, or renewable 
electricity. A renewable fuel producer that generates RINs for any 
renewable fuel other than ethanol, biodiesel, renewable gasoline, 
renewable diesel that meets the Grade No. 1-D or No. 2-D specification 
in

[[Page 226]]

ASTM D975 (incorporated by reference, see Sec.  80.12), biogas-derived 
renewable fuel or renewable electricity must keep all the following 
additional records:
    (1) Documents demonstrating the total volume of renewable fuel 
produced, total volume of renewable fuel blended into gasoline and 
distillate fuel, and the percentage of renewable fuel in each batch of 
finished fuel.
    (2) Contracts and documents memorializing the sale of renewable fuel 
to parties who blend the fuel into gasoline or diesel fuel to produce a 
transportation fuel, heating oil or jet fuel, or who use the renewable 
fuel in its neat form for a qualifying fuel use.
    (3) For each batch of renewable fuel that generated RINs under Sec.  
80.1426(f)(17)(i)(B)(2), one or more affidavits from the party that 
blended or used the renewable fuel that includes all the following 
information:
    (i) Quantity of renewable fuel received from the producer or 
importer.
    (ii) Date the renewable fuel was received from producer.
    (iii) A description of the fuel that the renewable fuel was blended 
into and the blend ratios for each batch, if applicable.
    (iv) A description of the finished fuel, and a statement that the 
fuel meets all applicable standards and was sold for use as a 
transportation fuel, heating oil or jet fuel.
    (v) Quantity of assigned RINs received with the renewable fuel, if 
applicable.
    (vi) Quantity of assigned RINs that the end user separated from the 
renewable fuel, if applicable.
    (4) Such other records as may be requested by EPA.
    (m) Requirements for independent third-party auditors. Any 
independent third-party auditor (as described at Sec.  80.1471) must 
keep all of the following records for a period of at least five years:
    (1) Copies of all reports submitted to the EPA under Sec.  
80.1451(g), as applicable.
    (2) Records related to the implementation of a QAP under Sec.  
80.1469 for each facility including records from facility audits and 
ongoing and quarterly monitoring activities.
    (3) Records related to the verification of RINs under Sec.  
80.1471(e).
    (4) Copies of communications sent to and received from renewable 
fuel producers or foreign renewable fuel producers, feedstock suppliers, 
purchasers of RINs, and obligated parties.
    (5) Copies of all notes relating to the implementation of a QAP 
under Sec.  80.1469.
    (6) List of RINs reported to the EPA and renewable fuel producers or 
foreign renewable fuel producers as potentially invalidly generated 
under Sec.  80.1474 compliance.
    (7) Records related to the professional liability insurance 
requirement under Sec.  80.1471(c).
    (8) Copies of all records related to any financial assurance 
instrument as required under Sec.  80.1470 under a quality assurance 
plan implemented under Sec.  80.1469(a) during the interim period.
    (9) Copies of all records and notifications related to the 
identification of a potentially invalid RIN under Sec.  80.1474(b).
    (10) Copies of all reports required under Sec.  80.1464.
    (11) Such other records as may be requested by EPA.
    (n) Additional requirements for producers of renewable fuel using 
crop residue. Producers of renewable fuel using crop residue must keep 
records of all of the following:
    (1) The specific crop residue feedstock(s) utilized to produce 
renewable fuel for each batch of renewable fuel produced.
    (2) The total quantity of each specific crop residue feedstock used 
for each batch.
    (3) Total amount of fuel produced under the crop residue pathway for 
each batch.
    (o) Requirements for parties that redesignate certified NTDF as 
MVNRLM diesel fuel. Parties that redesignate certified NTDF as MVNRLM 
diesel fuel under Sec.  80.1408 must keep all of the following 
additional records:
    (1) Records related to all transactions in which certified NTDF is 
redesignated as MVNRLM diesel fuel.
    (2) Records related to all transactions in which MVNRLM diesel fuel 
is redesignated to a non-transportation use.

[[Page 227]]

    (3) Records related to the volume of MVNRLM diesel fuel received.
    (4) Records related to the volume of MVNRLM diesel fuel delivered.
    (5) Records related to the volume of certified NTDF received.
    (6) Records related to the volume of certified NTDF delivered.
    (p) Requirements for recordkeeping of RIN holdings for all parties 
transacting or owning RINs. (1) Starting January 1, 2020, parties must 
retain records related to end-of-day separated D6 RIN holdings, and any 
associated calculations recorded in order to meet the RIN holdings 
requirements described in Sec.  80.1435 for a period of at least five 
years. Such records must include information related to any corporate 
affiliates, contractual affiliates, and their RIN holdings and 
calculations.
    (2) Parties must retain records related to their reports to EPA 
regarding threshold compliance under Sec. Sec.  80.1435 and 80.1451 for 
a period of at least five years.
    (q) Requirements for recordkeeping of contractual and corporate 
affiliates. (1) Parties must retain records including, but not limited 
to, the name, address, business location, contact information, and 
description of relationship, for each RIN-holding corporate affiliate 
for a period of at least five years. For the corporate affiliate group, 
a relational diagram.
    (2) Parties must retain records including, but not limited to, the 
name, address, business location, contact information, and contract or 
other agreement for each contractual affiliate for a period of at least 
five years.
    (3) If a party claims an exemption from aggregation under Sec.  
80.1435(e), the party must retain all records in support of the 
exemption for a period of at least five years and must provide these 
records to the attest auditor under Sec.  80.1464, and to EPA upon 
request.
    (r) Transaction requirement. Beginning July 1, 2010, all parties 
must keep transaction information sent to EMTS in addition to other 
records required under this section.
    (1) For buy or sell transactions of separated RINs, parties must 
retain records substantiating the price reported to EPA under Sec.  
80.1452.
    (2) For buy or sell transactions of separated RINs on or after 
January 1, 2020, parties must retain records demonstrating the 
transaction mechanism (e.g., spot market or fulfilling a term contract).
    (s) Record retention requirement. (1) The records required under 
paragraphs (a) through (d), (f) through (l), (n), and (r) of this 
section and under Sec.  80.1453 must be kept for five years from the 
date they were created, except that records related to transactions 
involving RINs must be kept for five years from the date of the RIN 
transaction.
    (2) The records required under paragraph (e) of this section must be 
kept through calendar year 2022.
    (t) Record availability requirement. On request by the EPA, the 
records required under this section and under Sec.  80.1453 must be made 
available to EPA. For records that are electronically generated or 
maintained, the equipment or software necessary to read the records 
shall be made available; or, if requested by the EPA, electronic records 
shall be converted to paper documents.
    (u) Record transfer requirement. The records required in paragraphs 
(b)(3) and (c)(1) of this section must be transferred with any renewable 
fuel sent to the importer of that renewable fuel by any non-RIN-
generating foreign producer.
    (v) English language records. Any document requested by EPA under 
this section must be submitted in English or must include an English 
translation.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26046, May 10, 2010; 75 
FR 76829, Dec. 9, 2010; 75 FR 79978, Dec. 21, 2010; 77 FR 74606, Dec. 
17, 2012; 78 FR 22789, Apr. 17, 2013; 78 FR 41715, July 11, 2013; 78 FR 
62471, Oct. 22, 2013; 79 FR 42118, 42165, July 18, 2014; 84 FR 27024, 
June 10, 2019; 85 FR 7080, Feb. 6, 2020; 85 FR 78467, Dec. 4, 2020; 87 
FR 39670, July 1, 2022; 87 FR 54166, Sept. 2, 2022; 88 FR 44589, July 
12, 2023]



Sec.  80.1455  [Reserved]



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

    (a) If EPA reduces the applicable volume of cellulosic biofuel 
pursuant to section 211(o)(7)(D)(i) of the Clean Air Act (42 U.S.C. 
7545(o)(7)(D)(i)) for any given compliance year, then EPA will

[[Page 228]]

provide cellulosic biofuel waiver credits for purchase for that 
compliance year.
    (1) The price of these cellulosic biofuel waiver credits will be set 
by EPA on an annual basis in accordance with paragraph (d) of this 
section.
    (2) The total cellulosic biofuel waiver credits available will be 
equal to the reduced cellulosic biofuel volume established by EPA for 
the compliance year.
    (b) Use of cellulosic biofuel waiver credits. (1) Cellulosic biofuel 
waiver credits are only valid for use in the compliance year that they 
are made available.
    (2) Cellulosic biofuel waiver credits are nonrefundable.
    (3) Cellulosic biofuel waiver credits are nontransferable.
    (4) Cellulosic biofuel waiver credits may only be used for an 
obligated party's current year cellulosic biofuel RVO and not towards 
any prior year deficit cellulosic biofuel volume obligations.
    (c) Purchase of cellulosic biofuel waiver credits. (1) Only parties 
with an RVO for cellulosic biofuel may purchase cellulosic biofuel 
waiver credits.
    (2) Cellulosic biofuel waiver credits shall be purchased from EPA at 
the time that a party submits its annual compliance report to EPA 
pursuant to Sec.  80.1451(a)(1).
    (3) Parties may not purchase more cellulosic biofuel waiver credits 
than their current year cellulosic biofuel RVO minus cellulosic biofuel 
RINs with a D code of 3 that they own.
    (4) Cellulosic biofuel waiver credits may only be used to meet an 
obligated party's cellulosic biofuel RVO.
    (d) Setting the price of cellulosic biofuel waiver credits. (1) The 
price for cellulosic biofuel waiver credits shall be set equal to the 
greater of:
    (i) $0.25 per cellulosic biofuel waiver credit, adjusted for 
inflation in comparison to calendar year 2008; or
    (ii) $3.00 less the wholesale price of gasoline per cellulosic 
biofuel waiver credit, adjusted for inflation in comparison to calendar 
year 2008.
    (2) The wholesale price of gasoline will be calculated by averaging 
the most recent twelve monthly values for U.S. Total Gasoline Bulk Sales 
(Price) by Refiners as provided by the Energy Information Administration 
that are available as of September 30 of the year preceding the 
compliance period.
    (3) The inflation adjustment will be calculated by comparing the 
Consumer Price Index for All Urban Consumers (CPI-U): U.S. City Average, 
Unadjusted Index for All Items expenditure category as provided by the 
Bureau of Labor Statistics for June of the year preceding the compliance 
period to the comparable value reported for January 2009.
    (e) Cellulosic biofuel waiver credits under this section will only 
be able to be purchased on forms and following procedures prescribed by 
EPA.

[75 FR 14863, Mar. 26, 2010, as amended at 80 FR 18141, Apr. 3, 2015]



Sec.  80.1457  Petition process for aggregate compliance approach for
foreign countries.

    (a) EPA may approve a petition for application of the aggregate 
compliance approach to planted crops and crop residue from existing 
agricultural land in a foreign country if EPA determines that an 
aggregate compliance approach will provide reasonable assurance that 
planted crops and crop residue from the country in question meet the 
definition of renewable biomass and will continue to meet the definition 
of renewable biomass, based on the submission of credible, reliable, and 
verifiable data.
    (1) As part of its evaluation, EPA will consider all of the 
following:
    (i) Whether there has been a reasonable identification of the ``2007 
baseline area of land,'' defined as the total amount of cropland, 
pastureland, and land that is equivalent to U.S. Conservation Reserve 
Program land in the country in question that was actively managed or 
fallow and nonforested on December 19, 2007.
    (ii) Whether information on the total amount of cropland, 
pastureland, and land that is equivalent to U.S. Conservation Reserve 
Program land in the country in question for years preceding and 
following calendar year 2007 shows that the 2007 baseline area of land 
identified in paragraph (a)(1)(i) of this section is not likely to be 
exceeded in the future.

[[Page 229]]

    (iii) Whether economic considerations, legal constraints, historical 
land use and agricultural practices and other factors show that it is 
likely that producers of planted crops and crop residue will continue to 
use agricultural land within the 2007 baseline area of land identified 
in paragraph (a)(1)(i) of this section into the future, as opposed to 
clearing and cultivating land not included in the 2007 baseline area of 
land.
    (iv) Whether there is a reliable method to evaluate on an annual 
basis whether the 2007 baseline area of land identified in paragraph 
(a)(1)(i) of this section is being or has been exceeded.
    (v) Whether a credible and reliable entity has been identified to 
conduct data gathering and analysis, including annual identification of 
the aggregate amount of cropland, pastureland, and land that is 
equivalent to U.S. Conservation Reserve Program land, needed for the 
annual EPA evaluation specified in Sec.  80.1454(g)(1), and whether the 
data, analyses, and methodologies are publicly available.
    (2) [Reserved]
    (b) Any petition and all supporting materials submitted under 
paragraph (a) of this section must be submitted both in English and its 
original language (if other than English), and must include all of the 
following or an explanation of why it is not needed for EPA to consider 
the petition:
    (1) Maps or electronic data identifying the boundaries of the land 
for which the petitioner seeks approval of an aggregate compliance 
approach.
    (2) The total amount of land that is cropland, pastureland, or land 
equivalent to U.S. Conservation Reserve Program land within the 
geographic boundaries specified in paragraph (b)(1) of this section that 
was cleared or cultivated prior to December 19, 2007 and that was 
actively managed or fallow and nonforested on that date, and
    (3) Land use data that demonstrates that the land identified in 
paragraph (b)(1) of this section is cropland, pastureland or land 
equivalent to U.S. Conservation Reserve Program land that was cleared or 
cultivated prior to December 19, 2007, and that was actively managed or 
fallow and nonforested on that date, which may include any of the 
following:
    (i) Satellite imagery or data.
    (ii) Aerial photography.
    (iii) Census data.
    (iv) Agricultural survey data.
    (v) Agricultural economic modeling data.
    (4) Historical land use data for the land within the geographic 
boundaries specified in paragraph (b)(1) of this section to the current 
year, which may include any of the following:
    (i) Satellite imagery or data.
    (ii) Aerial photography.
    (iii) Census data.
    (iv) Agricultural surveys.
    (v) Agricultural economic modeling data.
    (5) A description of any applicable laws, agricultural practices, 
economic considerations, or other relevant factors that had or may have 
an effect on the use of agricultural land within the geographic 
boundaries specified in paragraph (b)(1) of this section, including 
information regarding the efficacy and enforcement of relevant laws and 
regulations.
    (6) A plan describing how the petitioner will identify a credible 
and reliable entity who will, on a continuing basis, conduct data 
gathering, analysis, and submittal to assist EPA in making an annual 
determination of whether the criteria specified in paragraph (a) of this 
section remains satisfied.
    (7) A letter, signed by a national government representative at the 
ministerial level or equivalent, confirming that the petition and all 
supporting data have been reviewed and verified by the ministry (or 
ministries) or department(s) of the national government with primary 
expertise in agricultural land use patterns, practices, data, and 
statistics, that the data support a finding that planted crops and crop 
residue from the specified country meet the definition of renewable 
biomass and will continue to meet the definition of renewable biomass, 
and that the responsible national government ministry (or ministries) or 
department(s) will review and verify the data submitted on an annual 
basis to facilitate EPA's annual evaluation of the 2007 baseline area of 
land specified in

[[Page 230]]

Sec.  80.1454(g)(1) for the country in question.
    (8) Any additional information that EPA may require.
    (c) EPA will issue a Federal Register notice informing the public of 
receipt of any petition submitted pursuant to this section and will 
provide a 60-day period for public comment. If EPA approves a petition 
it will issue a Federal Register notice announcing its decision and 
specifying an effective date for the application of the aggregate 
compliance approach to planted crops and crop residue from the country. 
Thereafter, the planted crops and crop residue from the country will be 
covered by the aggregate compliance approach set forth in Sec.  
80.1454(g), or as otherwise specified pursuant to paragraph (d) of this 
section.
    (d) If EPA grants a petition to establish an aggregate compliance 
approach for planted crops and crop residue from a foreign country, it 
may include any conditions that EPA considers appropriate in light of 
the conditions and circumstances involved.
    (e)(1) EPA may withdraw its approval of the aggregate compliance 
approach for the planted crops and crop residue from the country in 
question if:
    (i) EPA determines that the data submitted pursuant to the plan 
described in paragraph (b)(6) of this section does not demonstrate that 
the amount of cropland, pastureland and land equivalent to U.S. 
Conservation Reserve Program land within the geographic boundaries 
covered by the approved petition does not exceed the 2007 baseline area 
of land;
    (ii) EPA determines based on other information that the criteria 
specified in paragraph (a) of this section is no longer satisfied; or
    (iii) EPA determines that the data needed for its annual evaluation 
has not been collected and submitted in a timely and appropriate manner.
    (2) If EPA withdraws its approval for a given country, then 
producers using planted crops or crop residue from that country will be 
subject to the individual recordkeeping and reporting requirements of 
Sec.  80.1454(b) through (d) in accordance with the schedule specified 
in Sec.  80.1454(g).

[75 FR 76829, Dec. 9, 2010, as amended at 88 FR 44590, July 12, 2023]



Sec.  80.1458  Storage of renewable fuel, RNG, or biointermediate prior
to registration.

    (a) Applicability. (1) A renewable fuel producer may store renewable 
fuel for the generation of RINs prior to EPA acceptance of their 
registration under Sec.  80.1450(b) if all the requirements of this 
section are met.
    (2) An RNG producer may store RNG prior to EPA acceptance of their 
registration under Sec.  80.135 if all the requirements of this section 
are met.
    (3) A biointermediate producer may store biointermediate (including 
biogas used to produce a biogas-derived renewable fuel) prior to EPA 
acceptance of their registration under Sec.  80.1450(b) if all the 
requirements of this section are met.
    (b) Storage requirements. In order for a renewable fuel, RNG, or 
biointermediate producer to store renewable fuel, RNG, or 
biointermediate under this section, the producer must do the following:
    (1) Produce the stored renewable fuel, RNG, or biointermediate after 
an independent third-party engineer has conducted an engineering review 
for the renewable fuel, RNG, or biointermediate production facility 
under Sec.  80.1450(b)(2).
    (2) Produce the stored renewable fuel, RNG, or biointermediate in 
accordance with all applicable requirements under this part.
    (3) Make no change to the facility after the independent third-party 
engineer completed the engineering review.
    (4) Store the renewable fuel, RNG, or biointermediate at the 
facility that produced the renewable fuel, RNG, or biointermediate.
    (5) Maintain custody and title to the stored renewable fuel, RNG, or 
biointermediate until EPA accepts the producer's registration under 
Sec.  80.1450(b).
    (c) RIN generation. (1) A RIN generator may only generate RINs for 
stored

[[Page 231]]

renewable fuel, stored RNG, or renewable fuel produced from stored 
biointermediate if the RIN generator generates the RINs under Sec. Sec.  
80.125, 80.1426, and 80.1452, as applicable, after EPA accepts their 
registration under Sec.  80.1450(b) and meets all other applicable 
requirements under this part for RIN generation.
    (2) The RIN year of any RINs generated for stored renewable fuel, 
stored RNG, or renewable fuel produced from stored biointermediate is 
the year that the renewable fuel or RNG was produced.
    (d) Limitations. RNG injected into a natural gas commercial pipeline 
system prior to EPA acceptance of a renewable fuel producer's 
registration under Sec.  80.135 does not meet the requirements of this 
section and may not be stored.

[88 FR 44590, July 12, 2023]



Sec.  80.1459  [Reserved]



Sec.  80.1460  What acts are prohibited under the RFS program?

    (a) Renewable fuels producer or importer violation. No person shall 
produce or import a renewable fuel without complying with the 
requirements of Sec.  80.1426 regarding the generation and assignment of 
RINs.
    (b) RIN generation and transfer violations. No person shall do any 
of the following:
    (1) Generate a RIN for a fuel that is not a renewable fuel, or for 
which the applicable renewable fuel volume was not produced.
    (2) Create or transfer to any person a RIN that is invalid under 
Sec.  80.1431.
    (3) Transfer to any person a RIN that is not properly identified as 
required under Sec.  80.1425.
    (4) Transfer to any person a RIN with a K code of 1 without 
transferring an appropriate volume of renewable fuel to the same person 
on the same day.
    (5) Introduce into commerce any renewable fuel produced from a 
feedstock, biointermediate, or through a process that is not described 
in the person's registration information.
    (6) Generate a RIN for fuel for which RINs have previously been 
generated unless the RINs were generated under Sec.  80.1426(c)(6).
    (7) Generate a RIN for fuel that fails to meet all the conditions 
set forth in an approval document for a pathway petition submitted under 
Sec.  80.1416.
    (8) Generate a RIN for fuel that was produced from a biointermediate 
for which the fuel and biointermediate were not audited under an EPA-
approved quality assurance plan.
    (c) RIN use violations. No person shall do any of the following:
    (1) Fail to acquire sufficient RINs, or use invalid RINs, to meet 
the person's RVOs under Sec.  80.1427.
    (2) Use a validly generated RIN to meet the person's RVOs under 
Sec.  80.1427, or separate and transfer a validly generated RIN, where 
the person using the RIN ultimately uses the renewable fuel volume 
associated with the RIN in an application other than for use as 
transportation fuel, jet fuel, or heating oil.
    (3) Use a validly generated RIN to meet the person's RVOs under 
Sec.  80.1427, or separate and transfer a validly generated RIN, where 
the person ultimately uses the renewable fuel volume associated with the 
RIN in an application other than for use as transportation fuel, jet 
fuel, or heating oil.
    (d) RIN retention violation. No person shall retain RINs in 
violation of the requirements in Sec.  80.1428(a)(4).
    (e) Causing a violation. No person shall cause another person to 
commit an act in violation of any prohibited act under this section.
    (f) Failure to meet a requirement. No person shall fail to meet any 
requirement that applies to that person under this subpart.
    (g) Failing to use a renewable fuel oil for its intended use. No 
person shall use fuel oil that meets paragraph (2) of the definition of 
``heating oil'' in Sec.  80.2 and for which RINs have been generated in 
an application other than to heat or cool interior spaces of homes or 
buildings to control ambient climate for human comfort.
    (h) RIN separation violations. No person shall do any of the 
following:
    (1) Identify separated RINs in EMTS with the wrong separation reason 
code.
    (2) Identify separated RINs in EMTS without having a qualifying 
separation event pursuant to Sec.  80.1429.
    (3) Separate more than 2.5 RINs per gallon of renewable fuel that 
has a

[[Page 232]]

valid qualifying separation event pursuant to Sec.  80.1429.
    (4) Separate RINs outside of the requirements in Sec.  80.1452(c).
    (5) Improperly separate RINs in any other way not listed in 
paragraphs (h)(1)-(4) of this section.
    (i) Independent third-party auditor violations. No person shall do 
any of the following:
    (1) Fail to fully implement a QAP approved under Sec.  80.1469.
    (2) Fail to fully, accurately, and timely notify all appropriate 
parties of potentially invalid RINs under Sec.  80.1474(b).
    (3) Verify a RIN under Sec.  80.1471(e) without verifying every 
applicable requirement in Sec.  80.1469 and verifying each element in an 
approved QAP.
    (j) Redesignation violations. No person may exceed the balance 
requirements at Sec.  80.1408(a)(2)(i) without incurring an RVO.
    (k) Biointermediate-related violations. No person may do any of the 
following:
    (1) Introduce into commerce for use in the production of a renewable 
fuel any biointermediate produced from a feedstock or through a process 
that is not described in the person's registration information.
    (2) Produce a renewable fuel at more than one facility unless the 
person uses a biointermediate or the renewable biomass is not 
substantially altered. Form changes of renewable biomass such as 
bleaching through adsorption, rendering fats, chopping, crushing, 
grinding, pelletizing, filtering, compacting/compression, centrifuging, 
degumming, dewatering/drying, melting, triglycerides resulting from 
deodorizing, or the addition of water to produce a slurry do not 
constitute substantial alteration.
    (3) Transfer a biointermediate from a biointermediate production 
facility to a facility other than the renewable fuel production facility 
specified in the biointermediate producer's registration under Sec.  
80.1450(b)(1)(ii)(B)(1).
    (4) Isolate or concentrate non-characteristic components of the 
feedstock to yield a biointermediate not identified in a registration 
accepted by EPA.
    (5) No person may transfer a biointermediate without complying with 
the PTD requirements in Sec.  80.1453(f).
    (l) Independent third-party engineer violations. No person shall do 
any of the following:
    (1) Fail to identify any incorrect information submitted by any 
party as specified in Sec.  80.1450(b)(2).
    (2) Fail to meet any requirement related to engineering reviews as 
specified in Sec.  80.1450(b)(2).
    (3) Fail to disclose to EPA any financial, professional, business, 
or other interests with parties for whom the independent third-party 
engineer provides services under Sec.  80.1450.
    (4) Fail to meet any requirement related to the independent third-
party engineering review requirements in Sec.  80.1450(b)(2) or (d)(1).

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26047, May 10, 2010; 77 
FR 1357, Jan. 9, 2012; 78 FR 62471, Oct. 22, 2013; 79 FR 42119, July 18, 
2014; 85 FR 7080, Feb. 6, 2020; 87 FR 39671, July 1, 2022; 88 FR 44591, 
July 12, 2023]



Sec.  80.1461  Who is liable for violations under the RFS program?

    (a) Liability for violations of prohibited acts. (1) Any person who 
violates a prohibition under Sec.  80.1460(a) through (d) or (g) through 
(k) is liable for the violation of that prohibition.
    (2) Any person who causes another person to violate a prohibition 
under Sec.  80.1460(a) through (d) or (g) through (k) is liable for a 
violation of Sec.  80.1460(e).
    (b) Liability for failure to meet other provisions of this subpart. 
(1) Any person who fails to meet a requirement of any provision of this 
subpart is liable for a violation of that provision.
    (2) Any person who causes another person to fail to meet a 
requirement of any provision of this subpart is liable for causing a 
violation of that provision.
    (c) Parent corporation liability. Any parent corporation is liable 
for any violation of this subpart that is committed by any of its 
subsidiaries.
    (d) Joint venture liability. Each partner to a joint venture is 
jointly and severally liable for any violation of this subpart that is 
committed by the joint venture operation.
    (e) Biointermediate liability. When a biointermediate contained in 
any storage tank at any facility owned, leased, operated, controlled, or 
supervised by

[[Page 233]]

any biointermediate producer, biointermediate importer, renewable fuel 
producer, or foreign ethanol producer is found in violation of a 
prohibition described in Sec.  80.1460(k)(1) and (3), the following 
persons shall be deemed in violation:
    (1) Each biointermediate producer, biointermediate importer, 
renewable fuel producer, renewable fuel importer, or foreign ethanol 
producer who owns, leases, operates, controls, or supervises the 
facility where the violation is found.
    (2) Each biointermediate producer, biointermediate importer, 
renewable fuel producer, renewable fuel importer, or foreign ethanol 
producer who manufactured, imported, sold, offered for sale, dispensed, 
offered for supply, stored, transported, or caused the transportation of 
any biointermediate that is in the storage tank containing the 
biointermediate found to be in violation.
    (3) Each carrier who dispensed, supplied, stored, or transported any 
biointermediate that was in the storage tank containing the 
biointermediate found to be in violation, provided that EPA 
demonstrates, by reasonably specific showings using direct or 
circumstantial evidence, that the carrier caused the violation.
    (f) Third-party liability. Any party allowed under this subpart to 
conduct sampling and testing on behalf of a regulated party and does so 
to demonstrate compliance with the requirements of this subpart must 
meet those requirements in the same way that the regulated party must 
meet those requirements. The regulated party and the third party are 
both liable for any violations arising from the third party's failure to 
meet the requirements of this subpart.

[75 FR 14863, Mar. 26, 2010, as amended at 79 FR 42119, July 18, 2014; 
85 FR 7080, Feb. 6, 2020; 87 FR 39671, July 1, 2022; 88 FR 44591, July 
12, 2023]



Sec.  80.1462  [Reserved]



Sec.  80.1463  What penalties apply under the RFS program?

    (a) Any person who is liable for a violation under Sec.  80.1461 is 
subject to a civil penalty as specified in sections 205 and 211(d) of 
the Clean Air Act, for every day of each such violation and the amount 
of economic benefit or savings resulting from each violation.
    (b) Any person liable under Sec.  80.1461(a) for a violation of 
Sec.  80.1460(c) for failure to meet its RVOs, or Sec.  80.1460(e) for 
causing another person to fail to meet their RVOs during any compliance 
period, is subject to a separate day of violation for each day in the 
compliance period.
    (c) Any person liable under Sec.  80.1461(b) for failure to meet, or 
causing a failure to meet, a requirement of any provision of this 
subpart is liable for a separate day of violation for each day such a 
requirement remains unfulfilled.
    (d) Any person liable under Sec.  80.1461(a) for a violation of 
Sec.  80.1460(b)(1) through (4) or (6) through (8) is subject to a 
separate day of violation for each day that an invalid RIN remains 
available for an obligated party or exporter of renewable fuel to 
demonstrate compliance with the RFS program.

[75 FR 14863, Mar. 26, 2010, as amended at 75 FR 26047, May 10, 2010; 79 
FR 42165, July 18, 2014; 85 FR 7080, Feb. 6, 2020; 87 FR 39671, July 1, 
2022]



Sec.  80.1464  What are the attest engagement requirements under the RFS
program?

    The requirements regarding annual attest engagements in 40 CFR 
1090.1800, also apply to any attest engagement procedures required under 
this subpart M. In addition to any other applicable attest engagement 
procedures, such as the requirements in Sec.  80.1466, the following 
annual attest engagement procedures are required under this subpart.
    (a) Obligated parties and exporters of renewable fuel. The following 
attest procedures shall be completed for any obligated party or exporter 
of renewable fuel:
    (1) Annual compliance demonstration report. (i) Obtain and read a 
copy of the annual compliance demonstration report required under Sec.  
80.1451(a)(1) which contains information regarding all the following:
    (A) The obligated party's volume of all products listed in Sec.  
80.1407(c) and (e),

[[Page 234]]

or the exporter of renewable fuel's volume of each category of exported 
renewable fuel identified in Sec.  80.1430(b)(1) through (b)(4).
    (B) RVOs.
    (C) RINs used for compliance.
    (ii) Obtain documentation of any volumes of renewable fuel used in 
products listed in Sec.  80.1407(c) and (e) at the refinery or import 
facility or exported during the reporting year; compute and report as a 
finding the total volumes of renewable fuel represented in these 
documents.
    (iii) For obligated parties, compare the volumes of products listed 
in Sec.  80.1407(c), (e), and (f) reported to EPA in the report required 
under Sec.  80.1451(a)(1) with the volumes, excluding any renewable fuel 
volumes, contained in the inventory reconciliation analysis under 40 CFR 
1090.1810 and the volume of non-renewable diesel produced or imported. 
Verify that the volumes reported to EPA agree with the volumes in the 
inventory reconciliation analysis and the volumes of non-renewable 
diesel produced or imported, and report as a finding any exception.
    (iv) For exporters of renewable fuel, perform all of the following:
    (A) Obtain the database, spreadsheet, or other documentation that 
the exporter of renewable fuel maintains for all exported renewable 
fuel.
    (B) Compare the volume of products identified in these documents 
with the volumes reported to EPA.
    (C) Verify that the volumes reported to EPA agree with the volumes 
identified in the database, spreadsheet, or other documentation, and 
report as a finding any exception.
    (D) Select sample batches in accordance with the guidelines in 40 
CFR 1090.1805 from each separate category of renewable fuel exported and 
identified in Sec.  80.1451(a); obtain invoices, bills of lading and 
other documentation for the representative samples; state whether any of 
these documents refer to the exported fuel as advanced biofuel or 
cellulosic biofuel; and report as a finding whether or not the exporter 
of renewable fuel calculated an advanced biofuel or cellulosic biofuel 
RVO for these fuels pursuant to Sec.  80.1430(b)(1) or (3).
    (v) Compute and report as a finding the RVOs for the obligated party 
or exporter of renewable fuel, and any deficit RVOs carried over from 
the previous year or carried into the subsequent year, and verify that 
the values agree with the values reported to EPA.
    (vi) Obtain the database, spreadsheet, or other documentation for 
all RINs by type of renewable fuel used for compliance during the year 
being reviewed; calculate the total number of RINs associated with each 
type of renewable fuel used for compliance by year of generation 
represented in these documents; state whether this information agrees 
with the report to EPA and report as a finding any exceptions.
    (vii) For obligated parties that redesignate certified NTDF as 
MVNRLM diesel fuel under Sec.  80.1408, perform the additional attest 
engagement procedures described at Sec.  80.1475 and report any findings 
in the report described in paragraph (d) of this section. Parties that 
do not incur an RVO under Sec.  80.1408(a)(2)(i) and do not otherwise 
need to complete an attest engagement under this paragraph (a) do not 
need to arrange for the additional attest engagement procedures under 
Sec.  80.1475 to be performed.
    (2) RIN transaction reports and product transfer documents. (i) 
Obtain and read copies of a representative sample, selected in 
accordance with the guidelines in 40 CFR 1090.1805, of each RIN 
transaction type (RINs purchased, RINs sold, RINs retired, RINs 
separated, RINs reinstated) included in the RIN transaction reports 
required under Sec.  80.1451(a)(2) for the compliance year.
    (ii) Obtain contracts, invoices, or other documentation for the 
representative samples of RIN transactions; compute the transaction 
types, transaction dates, and RINs traded; state whether the information 
agrees with the party's reports to EPA and report as a finding any 
exceptions.
    (iii) Verify that the product transfer documents for the 
representative samples under paragraph (a)(2)(i) of this section of RINs 
sold and the RINs purchased contain the applicable information required 
under Sec.  80.1453 and report as a finding any product transfer 
document that does not contain the required information.

[[Page 235]]

    (iv) Verify the accuracy of the information contained in the product 
transfer documents reviewed pursuant to paragraph (a)(2)(iii) of this 
section and report as a finding any exceptions.
    (3) RIN activity reports. (i) Obtain and read copies of all 
quarterly RIN activity reports required under Sec.  80.1451(a)(3) for 
the compliance year.
    (ii) Obtain the database, spreadsheet, or other documentation used 
to generate the information in the RIN activity reports; compare the RIN 
transaction samples reviewed under paragraph (a)(2) of this section with 
the corresponding entries in the database or spreadsheet and report as a 
finding any discrepancies; compute the total number of current-year and 
prior-year RINs owned at the start and end of each quarter, and for 
parties that reported RIN activity for RINs assigned to a volume of 
renewable fuel, the volume and type of renewable fuel owned at the end 
of each quarter, as represented in these documents; and state whether 
this information agrees with the party's reports to EPA.
    (4) RIN holdings. (i) Obtain and read copies of the RIN holdings 
calculations performed under Sec.  80.1435 for the party and any 
corporate affiliates and the applicable database, spreadsheet, or other 
documentation the party maintains.
    (ii) Select sample calculations in accordance with the guidelines in 
40 CFR 1090.1805; compute and report as a finding the results of these 
calculations and verify that the results agree with the values reported 
to EPA.
    (iii) Identify any date(s) where the aggregated calculation exceeded 
the RIN holding threshold(s) specified in Sec.  80.1435. Compute and 
state as a finding whether this information agrees with the party's 
reports (notification of threshold exceedance) to EPA.
    (5) Affiliates. Review reports and records related to corporate and 
contractual affiliates and state whether this information agrees with 
the party's reports to EPA, and report as a finding any exceptions.
    (6) Exemption. Review and confirm the existence of records 
supporting an exemption from aggregation claimed by the party under 
Sec.  80.1435(e), and report as a finding any exceptions.
    (7) Compliance reports. Compare the list of compliance reports 
submitted to EPA during the compliance period to the reporting 
requirements for the entity in Sec.  80.1451. Report as a finding any 
reporting requirements that were not completed.
    (b) Renewable fuel producers and RIN-generating importers. The 
following attest procedures shall be completed for any RIN-generating 
renewable fuel producer or importer:
    (1) RIN generation reports. (i) Obtain and read copies of the 
reports required under Sec.  80.1451(b)(1), (e), and (d) for the 
compliance year.
    (ii) Obtain production data for each renewable fuel batch by type of 
renewable fuel that was produced or imported during the year being 
reviewed; compute the RIN numbers, production dates, types, volumes of 
ethanol denaturant and applicable equivalence values, and production 
volumes for each batch; report the total RINs generated during the year 
being reviewed; and state whether this information agrees with the 
party's reports to EPA. Report as a finding any exceptions.
    (iii) Verify that the proper number of RINs were generated and 
assigned pursuant to the requirements of Sec.  80.1426 for each batch of 
renewable fuel produced or imported. For RINs generated for ethanol 
produced from corn starch at a facility using an approved pathway that 
requires the use of one or more of the advanced technologies listed in 
Table 2 to Sec.  80.1426, verify that the required advanced technology 
or technologies were employed in accordance with the specifications in 
Tables 1 and 2 to Sec.  80.1426, including any requirement for 
application to 90% of the production on a calendar year basis.
    (iv) Obtain product transfer documents for a representative sample, 
selected in accordance with the guidelines in 40 CFR 1090.1805, of 
renewable fuel batches produced or imported during the year being 
reviewed; verify that the product transfer documents contain the 
applicable information required under Sec.  80.1453; verify the accuracy 
of the information contained in the product transfer documents; report

[[Page 236]]

as a finding any product transfer document that does not contain the 
applicable information required under Sec.  80.1453.
    (v)(A) Obtain documentation, as required under Sec.  80.1451(b), 
(d), and (e), associated with feedstock and biointermediate purchases 
for a representative sample of feedstocks and biointermediates 
separately, selected in accordance with the guidelines in 40 CFR 
1090.1805, of renewable fuel batches produced or imported during the 
year being reviewed.
    (B) Verify that feedstocks were properly identified in the reports 
and met the definition of renewable biomass.
    (C) Verify that biointermediates were properly identified in the 
reports, as applicable.
    (2) RIN transaction reports and product transfer documents. (i) 
Obtain and read copies of a representative sample, selected in 
accordance with the guidelines in 40 CFR 1090.1805, of each transaction 
type (RINs purchased, RINs sold, RINs retired, RINs separated, RINs 
reinstated) included in the RIN transaction reports required under Sec.  
80.1451(b)(2) for the compliance year.
    (ii) Obtain contracts, invoices, or other documentation for the 
representative samples of RIN transactions; compute the transaction 
types, transaction dates, and the RINs traded; state whether this 
information agrees with the party's reports to EPA and report as a 
finding any exceptions.
    (iii) Verify that the product transfer documents for the 
representative samples under paragraph (b)(2)(i) of this section of RINs 
sold and the RINs purchased contain the applicable information required 
under Sec.  80.1453 and report as a finding any product transfer 
document that does not contain the required information.
    (iv) Verify the accuracy of the information contained in the product 
transfer documents reviewed pursuant to paragraph (b)(2)(iii) of this 
section and report as a finding any exceptions.
    (3) RIN activity reports. (i) Obtain and read copies of the 
quarterly RIN activity reports required under Sec.  80.1451(b)(3) for 
the compliance year.
    (ii) Obtain the database, spreadsheet, or other documentation used 
to generate the information in the RIN activity reports; compare the RIN 
transaction samples reviewed under paragraph (b)(2) of this section with 
the corresponding entries in the database or spreadsheet and report as a 
finding any discrepancies; report the total number of each RIN generated 
during each quarter and compute and report the total number of current-
year and prior-year RINs owned at the start and end of each quarter, and 
for parties that reported RIN activity for RINs assigned to a volume of 
renewable fuel, the volume of renewable fuel owned at the end of each 
quarter, as represented in these documents; and state whether this 
information agrees with the party's reports to EPA.
    (4) Independent Third Party Engineering Review. (i) Obtain 
documentation of independent third-party engineering reviews required 
under Sec.  80.1450(b)(2). Such documentation must include the date of 
the last engineering review along with date of the actual site visit by 
the professional engineer.
    (ii) Review and verify the written verification and records 
generated as part of the independent third party engineering review.
    (iii) Verify that independent third-party engineering reviews 
conducted under Sec.  80.1450(d)(3) occurred within the three-year 
cycle. Report as a finding if the engineering review was not updated as 
part of the three-year cycle under Sec.  80.1450(d)(3).
    (5) RIN holdings. (i) Obtain and read copies of the RIN holdings 
calculations performed under Sec.  80.1435 for the party and any 
corporate affiliates and the applicable database, spreadsheet, or other 
documentation the party maintains.
    (ii) Select sample calculations in accordance with the guidelines in 
40 CFR 1090.1805; compute and report as a finding the results of these 
calculations and verify that the results agree with the values reported 
to EPA.
    (iii) Identify any date(s) where the aggregated calculation exceeded 
the RIN holding threshold(s) specified in Sec.  80.1435. Compute and 
state as a finding whether this information agrees with the party's 
reports (notification of threshold exceedance) to EPA.
    (6) Affiliates. Review reports and records related to corporate and 
contractual affiliates and state whether

[[Page 237]]

this information agrees with the party's reports to EPA, and report as a 
finding any exceptions.
    (7) Exemption. Review and confirm the existence of records 
supporting an exemption from aggregation claimed by the party under 
Sec.  80.1435(e), and report as a finding any exceptions.
    (8) Compliance reports. Compare the list of compliance reports 
submitted to EPA during the compliance period to the reporting 
requirements for the entity in Sec.  80.1451. Report as a finding any 
reporting requirements that were not completed.
    (c) Other parties owning RINs. Except as specified in paragraph 
(c)(6) of this section, the following attest procedures must be 
completed for any party other than an obligated party or renewable fuel 
producer or importer that owns any RINs during a calendar year:
    (1) RIN transaction reports and product transfer documents.
    (i) Obtain and read copies of a representative sample, selected in 
accordance with the guidelines in 40 CFR 1090.1805, of each RIN 
transaction type (RINs purchased, RINs sold, RINs retired, RINs 
separated, RINs reinstated) included in the RIN transaction reports 
required under Sec.  80.1451(c)(1) for the compliance year.
    (ii) Obtain contracts, invoices, or other documentation for the 
representative samples of RIN transactions; compute the transaction 
types, transaction dates, and the RINs traded; state whether this 
information agrees with the party's reports to EPA and report as a 
finding any exceptions.
    (iii) Verify that the product transfer documents for the 
representative samples under paragraph (c)(1)(i) of this section of RINs 
sold and RINs purchased contain the applicable information required 
under Sec.  80.1453 and report as a finding any product transfer 
document that does not contain the required information.
    (iv) Verify the accuracy of the information contained in the product 
transfer documents reviewed pursuant to paragraph (c)(1)(iii) of this 
section and report as a finding any exceptions.
    (2) RIN activity reports.
    (i) Obtain and read copies of the quarterly RIN activity reports 
required under Sec.  80.1451(c)(2) for the compliance year.
    (ii) Obtain the database, spreadsheet, or other documentation used 
to generate the information in the RIN activity reports; compare the RIN 
transaction samples reviewed under paragraph (c)(1) of this section with 
the corresponding entries in the database or spreadsheet and report as a 
finding any discrepancies; compute the total number of current-year and 
prior-year RINs owned at the start and end of each quarter, and for 
parties that reported RIN activity for RINs assigned to a volume of 
renewable fuel, the volume of renewable fuel owned at the end of each 
quarter, as represented in these documents; and state whether this 
information agrees with the party's reports to EPA.
    (3) RIN holdings. (i) Obtain and read copies of the RIN holdings 
calculations performed under Sec.  80.1435 for the party and any 
corporate affiliates and the applicable database, spreadsheet, or other 
documentation the party maintains.
    (ii) Select sample calculations in accordance with the guidelines in 
40 CFR 1090.1805; compute and report as a finding the results of these 
calculations and verify that the results agree with the values reported 
to EPA.
    (iii) Identify any date(s) where the aggregated calculation exceeded 
the RIN holding threshold(s) specified in Sec.  80.1435. Compute and 
state as a finding whether this information agrees with the party's 
reports (notification of threshold exceedance) to EPA.
    (4) Affiliates. Review reports and records related to corporate and 
contractual affiliates and state whether this information agrees with 
the party's reports to EPA, and report as a finding any exceptions.
    (5) Exemption. Review and confirm the existence of records 
supporting an exemption from aggregation claimed by the party under 
Sec.  80.1435(e), and report as a finding any exceptions.
    (6) Low-volume RIN owner exemption. Any party who meets all the 
following criteria in a given compliance period is not required to 
submit an attest engagement for that compliance period:
    (i) The party must be solely registered as a party owning RINs 
(i.e., a ``RIN Owner Only'') and must not also

[[Page 238]]

be registered in any other role under Sec.  80.1450 (e.g., the party 
must not also be an obligated party, exporter of renewable fuel, 
renewable fuel producer, RIN generating importer, etc.).
    (ii) The party must have transacted (e.g., generated, bought, sold, 
separated, or retired) 10,000 or fewer RINs in the given compliance 
period.
    (iii) The party has not exceeded the RIN holding threshold(s) 
specified in Sec.  80.1435.
    (7) Compliance reports. Compare the list of compliance reports 
submitted to EPA during the compliance period to the reporting 
requirements for the entity in Sec.  80.1451. Report as a finding any 
reporting requirements that were not completed.
    (d) Report submission deadlines--(1) Obligated parties. (i) Except 
as specified in paragraph (d)(1)(ii) of this section, for obligated 
parties, annual attest engagement reports must be submitted to EPA by 
whichever of the following dates is latest:
    (A) June 1 of the subsequent calendar year.
    (B) The next June 1 annual attest engagement reporting deadline 
after the annual compliance reporting deadline under Sec.  
80.1451(f)(1)(i)(A).
    (ii)(A) For obligated parties that meet the requirements for a small 
refinery under Sec.  80.1441(e)(2)(iii), for the 2019 compliance year, 
annual attest engagement reports must be submitted to EPA no later than 
the next June 1 annual attest engagement reporting deadline after the 
annual compliance reporting deadline under Sec.  80.1451(f)(1)(i)(B)(1).
    (B) For obligated parties, for the 2020 compliance year, annual 
attest engagement reports must be submitted to EPA no later than the 
next June 1 annual attest engagement reporting deadline after the annual 
compliance reporting deadline under Sec.  80.1451(f)(1)(i)(B)(2).
    (C) For obligated parties, for the 2021 compliance year, annual 
attest engagement reports must be submitted to EPA no later than the 
next June 1 annual attest engagement reporting deadline after the annual 
compliance reporting deadline under Sec.  80.1451(f)(1)(i)(B)(3).
    (D) For obligated parties, for the 2022 compliance year, annual 
attest engagement reports must be submitted to EPA no later than the 
next June 1 annual attest engagement reporting deadline after the annual 
compliance reporting deadline under Sec.  80.1451(f)(1)(i)(B)(4).
    (2) All other parties. All parties other than obligated parties must 
submit annual attest engagement reports to EPA by June 1 of the 
subsequent calendar year.
    (3) Deadline publication. The annual attest engagement reporting 
deadline will be calculated in accordance with paragraph (d)(1) of this 
section and published on EPA's website.
    (e) The party conducting the procedures under this section shall 
obtain a written representation from a company representative that the 
copies of the reports required under this section are complete and 
accurate copies of the reports filed with EPA.
    (f) The party conducting the procedures under this section shall 
identify and report as a finding the commercial computer program used by 
the party to track the data required by the regulations in this subpart, 
if any.
    (g) [Reserved]
    (h) Biointermediate producers. The following attest reports must be 
completed for any biointermediate producer that produces a 
biointermediate in a compliance year:
    (1) Biointermediate production reports. (i) Obtain and read copies 
of the quarterly biointermediate production reports required under Sec.  
80.1451(i); compare the reported information to the requirements under 
Sec.  80.1451(i); and report as a finding any missing or incomplete 
information in the reports.
    (ii) Obtain any database, spreadsheet, or other documentation used 
to generate the information in the biointermediate production reports; 
compare the corresponding entries in the database or spreadsheet and 
report as a finding any discrepancies.
    (iii) For a representative sample of biointermediate batches, 
selected in accordance with the guidelines in 40 CFR 1090.1805, obtain 
records required under Sec.  80.1454(i); compare these records to the 
corresponding batch entries in the reports procured in paragraph

[[Page 239]]

(h)(1)(i) of this section and report as a finding any discrepancies.
    (iv) Obtain the list of designated renewable fuel production 
facilities under Sec.  80.1450(b)(1)(ii)(B)(1); compare the list of 
registered designated renewable fuel production facilities to those 
identified in the biointermediate production report; and report as a 
finding any discrepancies.
    (v) Provide the list of renewable fuel producers receiving any 
transfer of biointermediate batches and calculate the total volume from 
the batches received.
    (2) Independent third-party engineering review. (i) Obtain 
documentation of independent third-party engineering reviews required 
under Sec.  80.1450(b)(2).
    (ii) Review and verify the written verification and records 
generated as part of the independent third-party engineering review.
    (iii) Provide the date of the submission of the last engineering 
review along with the date of the actual site visit by the professional 
engineer. Report as a finding if the engineering review was not updated 
as part of the three-year cycle under Sec.  80.1450(d)(3).
    (iv) Compare and provide the total volume of produced 
biointermediate during the compliance year as compared to the production 
capacity stated in the engineering review and report as a finding if the 
volume of produced biointermediate is greater than the stated production 
capacity.
    (3) Product transfer documents. (i) Obtain contracts, invoices, or 
other documentation for each batch in the representative sample under 
paragraph (h)(1)(iii) of this section and the corresponding copies of 
product transfer documents required under Sec.  80.1453; compare the 
product transfer documents with the contracts and invoices and report as 
a finding any discrepancies.
    (ii) Verify that the product transfer documents obtained in 
paragraph (h)(3)(i) of this section contain the applicable information 
required under Sec.  80.1453 and report as a finding any product 
transfer document that does not contain the required information.
    (iii) Verify the accuracy of the information contained in the 
product transfer documents reviewed pursuant to paragraph (h)(3)(ii) of 
this section with the records obtained and reviewed under paragraph 
(h)(1)(iii) of this section and report as a finding any exceptions.
    (i) Independent third-party auditors. The following attest 
procedures shall be completed for any independent third-party auditor 
that implements a quality assurance plan in a calendar year:
    (1)Comparing verification reports with approved QAPs. (i) Obtain and 
read copies of reports required under Sec.  80.1451(g)(1). Compare the 
list of compliance reports submitted to EPA during the compliance period 
to the reporting requirements for the entity in Sec.  80.1451. Report as 
a finding any reporting requirements that were not completed.
    (ii) Obtain and read copies of any quality assurance plans approved 
under Sec.  80.1469.
    (iii) Confirm that the independent third-party auditor only verified 
RINs and biointermediates covered by approved QAPs under Sec.  80.1469. 
Identify as a finding any discrepancies.
    (2) Checking third-party auditor's verification. (i) Obtain and read 
copies of reports required under Sec.  80.1451(g)(2). Compare the list 
of compliance reports submitted to EPA during the compliance period to 
the reporting requirements for the entity in Sec.  80.1451. Report as a 
finding any reporting requirements that were not completed.
    (ii) Obtain all notifications of potentially invalid RINs and 
potentially improperly produced biointermediate submitted to the EPA 
under Sec. Sec.  80.1474(b)(3) and 80.1477(d)(2) respectively.
    (iii)(A) Obtain the database, spreadsheet, or other documentation 
used to generate the information in the RIN verification reports;
    (B) Obtain all underlying documents that the QAP provider relied 
upon to verify the RINs;
    (C) Review the documents that the QAP auditor relied on to prepare 
the reports obtained in paragraph (d)(2)(i) of this section, verify that 
the underlying documents appropriately reflect the information reported 
to the EPA,

[[Page 240]]

and identify as a finding any discrepancies between the underlying 
documents and the information in the RIN verification reports;
    (D) Compute the total number of current-year RINs and current-year 
potentially invalid RINs verified at the start and end of each quarter, 
as represented in these documents; and state whether this information 
agrees with the party's reports to the EPA; and
    (E) Verify that all parties were appropriately notified under Sec.  
80.1474(b)(3) and report any missing notifications as a finding.

[75 FR 14863, Mar. 26, 2010]

    Editorial Note: For Federal Register citations affecting Sec.  
80.1464, see the List of CFR Sections Affected, which appears in the 
Finding Aids section of the printed volume and at www.govinfo.gov.



Sec.  80.1465  [Reserved]



Sec.  80.1466  What are the additional requirements under this subpart
for foreign renewable fuel producers and importers of renewable fuels?

    (a) Applicability. This section only applies to foreign renewable 
fuel producers that are located outside the United States, the 
Commonwealth of Puerto Rico, the Virgin Islands, Guam, American Samoa, 
and the Commonwealth of the Northern Mariana Islands (collectively 
referred to in this section as ``the United States'').
    (b) General requirements. A registered foreign renewable fuel 
producer under this section must meet all requirements that apply to 
renewable fuel producers under this subpart.
    (c) Designation, RIN-generating foreign producer certification, and 
product transfer documents. (1) Any registered foreign renewable fuel 
producer must designate each batch of such renewable fuel as ``RFS-
FRRF'' at the time the renewable fuel is produced.
    (2) On each occasion when RFS-FRRF is transferred for transport to a 
vessel or loaded onto a vessel or other transportation mode for 
transport to the United States, the RIN-generating foreign producer 
shall prepare a certification for each batch of RFS-FRRF; the 
certification shall include the report of the independent third party 
under paragraph (d) of this section, and all the following additional 
information:
    (i) The name and EPA registration number of the company that 
produced the RFS-FRRF.
    (ii) The identification of the renewable fuel as RFS-FRRF.
    (iii) The identification of the renewable fuel by type, D code, and 
number of RINs generated.
    (iv) The volume of RFS-FRRF, standardized per Sec.  80.1426(f)(8), 
being transported, in gallons.
    (3) On each occasion when any person transfers custody or title to 
any RFS-FRRF prior to its being imported into the United States, it must 
include all the following information as part of the product transfer 
document information:
    (i) Designation of the renewable fuel as RFS-FRRF.
    (ii) The certification required under paragraph (c)(2) of this 
section.
    (d) Load port independent testing and producer identification. (1) 
On each occasion that RFS-FRRF is loaded onto a vessel for transport to 
the United States the RIN-generating foreign producer shall have an 
independent third party do all the following:
    (i) Inspect the vessel prior to loading and determine the volume of 
any tank bottoms.
    (ii) Determine the volume of RFS-FRRF, standardized per Sec.  
80.1426(f)(8), loaded onto the vessel (exclusive of any tank bottoms 
before loading).
    (iii) Obtain the EPA-assigned registration number of the foreign 
renewable fuel producer.
    (iv) Determine the name and country of registration of the vessel 
used to transport the RFS-FRRF to the United States.
    (v) Determine the date and time the vessel departs the port serving 
the RIN-generating foreign producer.
    (vi) Review original documents that reflect movement and storage of 
the RFS-FRRF from the RIN-generating foreign producer to the load port, 
and from this review determine all the following:
    (A) The facility at which the RFS-FRRF was produced.
    (B) That the RFS-FRRF remained segregated from Non-RFS-FRRF and

[[Page 241]]

other RFS-FRRF produced by a different foreign producer.
    (2) The independent third party shall submit a report to the 
following:
    (i) The RIN-generating foreign producer, containing the information 
required under paragraph (d)(1) of this section, to accompany the 
product transfer documents for the vessel.
    (ii) EPA, containing the information required under paragraph (d)(1) 
of this section, within thirty days following the date of the 
independent third party's inspection. This report shall include a 
description of the method used to determine the identity of the foreign 
producer facility at which the renewable fuel was produced, assurance 
that the renewable fuel remained segregated as specified in paragraph 
(j)(1) of this section, and a description of the renewable fuel's 
movement and storage between production at the source facility and 
vessel loading.
    (3) The independent third party must:
    (i) Be approved in advance by EPA, based on a demonstration of 
ability to perform the procedures required in this paragraph (d);
    (ii) Be independent under the criteria specified in 40 CFR 
1090.1805; and
    (iii) Sign a commitment that contains the provisions specified in 
paragraph (f) of this section with regard to activities, facilities and 
documents relevant to compliance with the requirements of this paragraph 
(d).
    (e) Comparison of load port and port of entry testing. (1)(i) Any 
RIN-generating foreign producer and any United States importer of RFS-
FRRF shall compare the results from the load port testing under 
paragraph (d) of this section, with the port of entry testing as 
reported under paragraph (k) of this section, for the volume of 
renewable fuel, standardized per Sec.  80.1426(f)(8), except as 
specified in paragraph (e)(1)(ii) of this section.
    (ii) Where a vessel transporting RFS-FRRF offloads the renewable 
fuel at more than one United States port of entry, the requirements of 
paragraph (e)(1)(i) of this section do not apply at subsequent ports of 
entry if the United States importer obtains a certification from the 
vessel owner that the requirements of paragraph (e)(1)(i) of this 
section were met and that the vessel has not loaded any renewable fuel 
between the first United States port of entry and the subsequent ports 
of entry.
    (2)(i) If the temperature-corrected volumes, after accounting for 
tank bottoms, determined at the port of entry and at the load port 
differ by more than one percent, the number of RINs associated with the 
renewable fuel shall be calculated based on the lesser of the two 
volumes in paragraph (e)(1)(i) of this section.
    (ii) Where the port of entry volume is the lesser of the two volumes 
in paragraph (e)(1)(i) of this section, the importer shall calculate the 
difference between the number of RINs originally assigned by the RIN-
generating foreign producer and the number of RINs calculated under 
Sec.  80.1426 for the volume of renewable fuel as measured at the port 
of entry, and acquire and retire that amount of RINs in accordance with 
paragraph (k)(3) of this section.
    (f) Foreign producer commitments. Any foreign renewable fuel 
producer shall commit to and comply with the following provisions as a 
condition to being registered as a foreign renewable fuel producer under 
this subpart:
    (1) Any EPA inspector or auditor must be given full, complete, and 
immediate access to conduct inspections and audits of the foreign 
renewable fuel producer facility.
    (i) Inspections and audits may be either announced in advance by 
EPA, or unannounced.
    (ii) Access will be provided to any location where:
    (A) Renewable fuel is produced;
    (B) Documents related to renewable fuel producer operations are 
kept; and
    (C) Renewable fuel is stored or transported between the foreign 
renewable fuel producer and the United States, including storage tanks, 
vessels and pipelines.
    (iii) EPA inspectors and auditors may be EPA employees or 
contractors to EPA.
    (iv) Any documents requested that are related to matters covered by 
inspections and audits must be provided to an EPA inspector or auditor 
on request.
    (v) Inspections and audits may include review and copying of any 
documents related to the following:

[[Page 242]]

    (A) The volume of renewable fuel.
    (B) The proper classification of renewable fuel as being RFS-FRRF.
    (C) Transfers of title or custody to renewable fuel.
    (D) Work performed and reports prepared by independent third parties 
and by independent auditors under the requirements of this section, 
including work papers.
    (vi) Inspections and audits by EPA may include interviewing 
employees.
    (vii) Any employee of the foreign renewable fuel producer must be 
made available for interview by the EPA inspector or auditor, on 
request, within a reasonable time period.
    (viii) English language translations of any documents must be 
provided to an EPA inspector or auditor, on request, within 10 business 
days.
    (ix) English language interpreters must be provided to accompany EPA 
inspectors and auditors, on request.
    (2) An agent for service of process located in the District of 
Columbia shall be named, and service on this agent constitutes service 
on the foreign renewable fuel producer or any employee of the foreign 
renewable fuel producer for any action by EPA or otherwise by the United 
States related to the requirements of this subpart.
    (3) The forum for any civil or criminal enforcement action related 
to the provisions of this section for violations of the Clean Air Act or 
regulations promulgated thereunder shall be governed by the Clean Air 
Act, including the EPA administrative forum where allowed under the 
Clean Air Act.
    (4) United States substantive and procedural laws shall apply to any 
civil or criminal enforcement action against the foreign renewable fuel 
producer or any employee of the foreign renewable fuel producer related 
to the provisions of this section.
    (5) Applying to be an approved foreign renewable fuel producer under 
this section, or producing or exporting renewable fuel under such 
approval, and all other actions to comply with the requirements of this 
subpart relating to such approval constitute actions or activities 
covered by and within the meaning of the provisions of 28 U.S.C. 
1605(a)(2), but solely with respect to actions instituted against the 
foreign renewable fuel producer, its agents and employees in any court 
or other tribunal in the United States for conduct that violates the 
requirements applicable to the foreign renewable fuel producer under 
this subpart, including conduct that violates the False Statements 
Accountability Act of 1996 (18 U.S.C. 1001) and section 113(c)(2) of the 
Clean Air Act (42 U.S.C. 7413).
    (6) The foreign renewable fuel producer, or its agents or employees, 
will not seek to detain or to impose civil or criminal remedies against 
EPA inspectors or auditors for actions performed within the scope of EPA 
employment or contract related to the provisions of this section.
    (7) The commitment required by this paragraph shall be signed by the 
owner or president of the foreign renewable fuel producer company.
    (8) In any case where renewable fuel produced at a foreign renewable 
fuel production facility is stored or transported by another company 
between the production facility and the vessel that transports the 
renewable fuel to the United States, the foreign renewable fuel producer 
shall obtain from each such other company a commitment that meets the 
requirements specified in paragraphs (f)(1) through (7) of this section, 
and these commitments shall be included in the foreign renewable fuel 
producer's application to be an approved foreign renewable fuel producer 
under this subpart.
    (g) Sovereign immunity. By submitting an application to be an 
approved foreign renewable fuel producer under this subpart, or by 
producing and exporting renewable fuel to the United States under such 
approval, the foreign renewable fuel producer, and its agents and 
employees, without exception, become subject to the full operation of 
the administrative and judicial enforcement powers and provisions of the 
United States without limitation based on sovereign immunity, with 
respect to actions instituted against the foreign renewable fuel 
producer, its agents and employees in any court or other tribunal in the 
United States for conduct that violates the requirements applicable to 
the foreign renewable fuel producer under this subpart, including

[[Page 243]]

conduct that violates the False Statements Accountability Act of 1996 
(18 U.S.C. 1001) and section 113(c)(2) of the Clean Air Act (42 U.S.C. 
7413).
    (h) Bond posting. Any RIN-generating foreign producer shall meet the 
following requirements as a condition to approval as a RIN-generating 
foreign producer under this subpart:
    (1) The RIN-generating foreign producer must post a bond of the 
amount calculated using the following equation.

Bond = G * $0.22

Where:

Bond = Amount of the bond in U.S. dollars.
G = The greater of: (1) The largest volume of renewable fuel produced by 
          the RIN-generating foreign producer and exported to the United 
          States, in gallons, during a single calendar year among the 
          five preceding calendar years; or (2) The largest volume of 
          renewable fuel that the RIN-generating foreign producers 
          expects to export to the United States during any calendar 
          year identified in the Production Outlook Report required by 
          Sec.  80.1449. If the volume of renewable fuel exported to the 
          United States increases above the largest volume identified in 
          the Production Outlook Report during any calendar year, the 
          RIN-generating foreign producer must increase the bond to 
          cover the shortfall within 90 days.

    (2) Bonds must be obtained in the proper amount from a third-party 
surety agent that is payable to satisfy United States administrative or 
judicial judgments against the foreign producer, provided EPA agrees in 
advance as to the third party and the nature of the surety agreement.
    (3) Bonds posted under this paragraph (h) shall:
    (i) Be used to satisfy any judicial judgment that results from an 
administrative or judicial enforcement action for conduct in violation 
of this subpart, including where such conduct violates the False 
Statements Accountability Act of 1996 (18 U.S.C. 1001) and section 
113(c)(2) of the Clean Air Act (42 U.S.C. 7413);
    (ii) Be provided by a corporate surety that is listed in the United 
States Department of Treasury Circular 570 ``Companies Holding 
Certificates of Authority as Acceptable Sureties on Federal Bonds''; and
    (iii) Include a commitment that the bond will remain in effect for 
at least five years following the end of latest annual reporting period 
that the RIN-generating foreign producer produces renewable fuel 
pursuant to the requirements of this subpart.
    (4) On any occasion a RIN-generating foreign producer bond is used 
to satisfy any judgment, the RIN-generating foreign producer shall 
increase the bond to cover the amount used within 90 days of the date 
the bond is used.
    (i) English language reports. Any document submitted to EPA by a 
foreign renewable fuel producer shall be in English, or shall include an 
English language translation.
    (j) Prohibitions. (1) No person may combine RFS-FRRF with any Non-
RFS-FRRF, and no person may combine RFS-FRRF with any RFS-FRRF produced 
at a different production facility, until the importer has met all the 
requirements of paragraph (k) of this section.
    (2) No foreign renewable fuel producer or other person may cause 
another person to commit an action prohibited in paragraph (j)(1) of 
this section, or that otherwise violates the requirements of this 
section.
    (3) No foreign renewable fuel producer or importer may generate RINs 
for the same volume of renewable fuel.
    (4) A foreign renewable fuel producer is prohibited from generating 
RINs in excess of the number for which the bond requirements of this 
section have been satisfied.
    (k) Requirements for United States importers of RFS-FRRF. Any United 
States importers of RFS-FRRF shall meet all the following requirements:
    (1) Renewable fuel shall be classified as RFS-FRRF according to the 
designation by the RIN-generating foreign producer if this designation 
is supported by product transfer documents prepared by the foreign 
producer as required in paragraph (c) of this section.
    (2) For each renewable fuel batch classified as RFS-FRRF, any United 
States importer shall have an independent third party do all the 
following:
    (i) Determine the volume of renewable fuel, standardized per Sec.  
80.1426(f)(8), in the vessel.

[[Page 244]]

    (ii) Use the RIN-generating foreign producer's RFS-FRRF 
certification to determine the name and EPA-assigned registration number 
of the RIN-generating foreign producer that produced the RFS-FRRF.
    (iii) Determine the name and country of registration of the vessel 
used to transport the RFS-FRRF to the United States.
    (iv) Determine the date and time the vessel arrives at the United 
States port of entry.
    (3) Where the importer is required to retire RINs under paragraph 
(e)(2) of this section, the importer must report the retired RINs in the 
applicable reports under Sec.  80.1451.
    (4) Any importer shall submit reports within 30 days following the 
date any vessel transporting RFS-FRRF arrives at the United States port 
of entry to all the following:
    (i) EPA, containing the information determined under paragraph 
(k)(2) of this section.
    (ii) The RIN-generating foreign producer, containing the information 
determined under paragraph (k)(2)(i) of this section, and including 
identification of the port at which the product was offloaded, and any 
RINs retired under paragraph (e)(2) of this section.
    (5) Any United States importer shall meet all other requirements of 
this subpart for any imported renewable fuel that is not classified as 
RFS-FRRF under paragraph (k)(1) of this section.
    (l) Truck imports of RFS-FRRF produced by a RIN-generating foreign 
producer. (1) Any RIN-generating foreign producer whose RFS-FRRF is 
transported into the United States by truck may petition EPA to use 
alternative procedures to meet all the following requirements:
    (i) Certification under paragraph (c)(2) of this section.
    (ii) Load port and port of entry testing under paragraphs (d) and 
(e) of this section.
    (iii) Importer testing under paragraph (k)(2) of this section.
    (2) These alternative procedures must ensure RFS-FRRF remains 
segregated from Non-RFS-FRRF until it is imported into the United 
States. The petition will be evaluated based on whether it adequately 
addresses all of the following:
    (i) Contracts with any facilities that receive and/or transport RFS-
FRRF that prohibit the commingling of RFS-FRRF with Non-RFS-FRRF or RFS-
FRRF from other foreign renewable fuel producers.
    (ii) Attest procedures to be conducted annually by an independent 
third party that review loading records and import documents based on 
volume reconciliation to confirm that all RFS-FRRF remains segregated.
    (3) The petition described in this section must be submitted to EPA 
along with the application for approval as a RIN-generating foreign 
producer under this subpart.
    (m) Additional attest requirements for producers of RFS-FRRF. The 
following additional procedures shall be carried out by any producer of 
RFS-FRRF as part of the attest engagement required for renewable fuel 
producers under this subpart M.
    (1) Obtain listings of all tenders of RFS-FRRF. Agree the total 
volume of tenders from the listings to the volumes determined by the 
third party under paragraph (d) of this section.
    (2) For each tender under paragraph (m)(1) of this section, where 
the renewable fuel is loaded onto a marine vessel, report as a finding 
the name and country of registration of each vessel, and the volumes of 
RFS-FRRF loaded onto each vessel.
    (3) Select a sample from the list of vessels identified in paragraph 
(m)(2) of this section used to transport RFS-FRRF, in accordance with 
the guidelines in 40 CFR 1090.1805, and for each vessel selected perform 
all the following:
    (i) Obtain the report of the independent third party, under 
paragraph (d) of this section, and of the United States importer under 
paragraph (k) of this section.
    (A) Agree the information in these reports with regard to vessel 
identification and renewable fuel volume.
    (B) Identify, and report as a finding, each occasion the load port 
and port of entry volume results differ by more than the amount allowed 
in paragraph (e) of this section, and determine

[[Page 245]]

whether the importer retired the appropriate amount of RINs as required 
under paragraph (e)(2) of this section, and submitted the applicable 
reports under Sec.  80.1451 in accordance with paragraph (k)(4) of this 
section.
    (ii) Obtain the documents used by the independent third party to 
determine transportation and storage of the RFS-FRRF from the RIN-
generating foreign producer's facility to the load port, under paragraph 
(d) of this section. Obtain tank activity records for any storage tank 
where the RFS-FRRF is stored, and activity records for any mode of 
transportation used to transport the RFS-FRRF prior to being loaded onto 
the vessel. Use these records to determine whether the RFS-FRRF was 
produced at the RIN-generating foreign producer's facility that is the 
subject of the attest engagement, and whether the RFS-FRRF was mixed 
with any Non-RFS-FRRF or any RFS-FRRF produced at a different facility.
    (4) Select a sample from the list of vessels identified in paragraph 
(m)(2) of this section used to transport RFS-FRRF, in accordance with 
the guidelines in 40 CFR 1090.1805, and for each vessel selected perform 
the following:
    (i) Obtain a commercial document of general circulation that lists 
vessel arrivals and departures, and that includes the port and date of 
departure of the vessel, and the port of entry and date of arrival of 
the vessel.
    (ii) Agree the vessel's departure and arrival locations and dates 
from the independent third party and United States importer reports to 
the information contained in the commercial document.
    (5) Obtain a separate listing of the tenders under this paragraph 
(m)(5) where the RFS-FRRF is loaded onto a marine vessel. Select a 
sample from this listing in accordance with the guidelines in 40 CFR 
1090.1805, and obtain a commercial document of general circulation that 
lists vessel arrivals and departures, and that includes the port and 
date of departure and the ports and dates where the renewable fuel was 
offloaded for the selected vessels. Determine and report as a finding 
the country where the renewable fuel was offloaded for each vessel 
selected.
    (6) In order to complete the requirements of this paragraph (m) an 
auditor shall:
    (i) Be independent of the RIN-generating foreign producer;
    (ii) Be licensed as a Certified Public Accountant in the United 
States and a citizen of the United States, or be approved in advance by 
EPA based on a demonstration of ability to perform the procedures 
required in 40 CFR 1090.1800, Sec.  80.1464, and this paragraph (m); and
    (iii) Sign a commitment that contains the provisions specified in 
paragraph (f) of this section with regard to activities and documents 
relevant to compliance with the requirements of 40 CFR 1090.1800, Sec.  
80.1464, and this paragraph (m).
    (n) Withdrawal or suspension of foreign renewable fuel producer 
approval. EPA may withdraw or suspend a foreign renewable fuel 
producer's approval where any of the following occur:
    (1) A foreign renewable fuel producer fails to meet any requirement 
of this section.
    (2) A foreign government fails to allow EPA inspections or audits as 
provided in paragraph (f)(1) of this section.
    (3) A foreign renewable fuel producer asserts a claim of, or a right 
to claim, sovereign immunity in an action to enforce the requirements in 
this subpart.
    (4) A foreign renewable fuel producer fails to pay a civil or 
criminal penalty that is not satisfied using the foreign renewable fuel 
producer bond specified in paragraph (h) of this section.
    (o) Additional requirements for applications, reports, and 
certificates. Any application for approval as a foreign renewable fuel 
producer, alternative procedures under paragraph (l) of this section, 
any report, certification, or other submission required under this 
section shall be:
    (1) Submitted in accordance with procedures specified by EPA, 
including use of any forms that may be specified by EPA.
    (2) Signed by the president or owner of the foreign renewable fuel 
producer company, or by that person's immediate designee, and shall 
contain the following declarations:
    (i) ``I hereby certify:

[[Page 246]]

    (A) That I have actual authority to sign on behalf of and to bind 
[NAME OF FOREIGN RENEWABLE FUEL PRODUCER] with regard to all statements 
contained herein;
    (B) That I am aware that the information contained herein is being 
Certified, or submitted to the United States Environmental Protection 
Agency, under the requirements of 40 CFR part 80, subpart M, and that 
the information is material for determining compliance under these 
regulations; and
    (C) That I have read and understand the information being Certified 
or submitted, and this information is true, complete and correct to the 
best of my knowledge and belief after I have taken reasonable and 
appropriate steps to verify the accuracy thereof.''
    (ii) ``I affirm that I have read and understand the provisions of 40 
CFR part 80, subpart M, including 40 CFR 80.1466 apply to [NAME OF 
FOREIGN RENEWABLE FUEL PRODUCER]. Pursuant to Clean Air Act section 
113(c) and 18 U.S.C. 1001, the penalty for furnishing false, incomplete 
or misleading information in this certification or submission is a fine 
of up to $10,000 U.S., and/or imprisonment for up to five years.''.
    (p) Requirements for non-RIN-generating foreign producer. Any non-
RIN-generating foreign producer must comply with the requirements of 
this section beginning on the effective date of the final rule or prior 
to EPA acceptance, whichever is later.

[75 FR 14863, Mar. 26, 2010, as amended at 77 FR 1357, Jan. 9, 2012; 85 
FR 7081, Feb. 6, 2020; 85 FR 78467, Dec. 4, 2020; 88 FR 44591, July 12, 
2023]



Sec.  80.1467  What are the additional requirements under this subpart
for a foreign RIN owner?

    (a) Foreign RIN owner. For purposes of this subpart, a foreign RIN 
owner is a person located outside the United States, the Commonwealth of 
Puerto Rico, the Virgin Islands, Guam, American Samoa, and the 
Commonwealth of the Northern Mariana Islands (collectively referred to 
in this section as ``the United States'') that has been approved by EPA 
to own RINs.
    (b) General requirement. An approved foreign RIN owner must meet all 
requirements that apply to parties who own RINs under this subpart.
    (c) Foreign RIN owner commitments. Any person shall commit to and 
comply with the provisions contained in this paragraph (c) as a 
condition to being approved as a foreign RIN owner under this subpart.
    (1) Any United States Environmental Protection Agency inspector or 
auditor must be given full, complete, and immediate access to conduct 
inspections and audits of the foreign RIN owner's place of business.
    (i) Inspections and audits may be either announced in advance by 
EPA, or unannounced.
    (ii) Access will be provided to any location where documents related 
to RINs the foreign RIN owner has obtained, sold, transferred or held 
are kept.
    (iii) Inspections and audits may be by EPA employees or contractors 
to EPA.
    (iv) Any documents requested that are related to matters covered by 
inspections and audits must be provided to an EPA inspector or auditor 
on request.
    (v) Inspections and audits by EPA may include review and copying of 
any documents related to the following:
    (A) Transfers of title to RINs.
    (B) Work performed and reports prepared by independent auditors 
under the requirements of this section, including work papers.
    (vi) Inspections and audits by EPA may include interviewing 
employees.
    (vii) Any employee of the foreign RIN owner must be made available 
for interview by the EPA inspector or auditor, on request, within a 
reasonable time period.
    (viii) English language translations of any documents must be 
provided to an EPA inspector or auditor, on request, within 10 business 
days.
    (ix) English language interpreters must be provided to accompany EPA 
inspectors and auditors, on request.
    (2) An agent for service of process located in the District of 
Columbia shall be named, and service on this agent constitutes service 
on the foreign RIN owner or any employee of the foreign RIN owner for 
any action by EPA or

[[Page 247]]

otherwise by the United States related to the requirements of this 
subpart.
    (3) The forum for any civil or criminal enforcement action related 
to the provisions of this section for violations of the Clean Air Act or 
regulations promulgated thereunder shall be governed by the Clean Air 
Act, including the EPA administrative forum where allowed under the 
Clean Air Act.
    (4) United States substantive and procedural laws shall apply to any 
civil or criminal enforcement action against the foreign RIN owner or 
any employee of the foreign RIN owner related to the provisions of this 
section.
    (5) Submitting an application to be a foreign RIN owner, and all 
other actions to comply with the requirements of this subpart constitute 
actions or activities covered by and within the meaning of the 
provisions of 28 U.S.C. 1605(a)(2), but solely with respect to actions 
instituted against the foreign RIN owner, its agents and employees in 
any court or other tribunal in the United States for conduct that 
violates the requirements applicable to the foreign RIN owner under this 
subpart, including conduct that violates the False Statements 
Accountability Act of 1996 (18 U.S.C. 1001) and section 113(c)(2) of the 
Clean Air Act (42 U.S.C. 7413).
    (6) The foreign RIN owner, or its agents or employees, will not seek 
to detain or to impose civil or criminal remedies against EPA inspectors 
or auditors, whether EPA employees or EPA contractors, for actions 
performed within the scope of EPA employment related to the provisions 
of this section.
    (7) The commitment required by this paragraph (c) shall be signed by 
the owner or president of the foreign RIN owner business.
    (d) Sovereign immunity. By submitting an application to be a foreign 
RIN owner under this subpart, the foreign entity, and its agents and 
employees, without exception, become subject to the full operation of 
the administrative and judicial enforcement powers and provisions of the 
United States without limitation based on sovereign immunity, with 
respect to actions instituted against the foreign RIN owner, its agents 
and employees in any court or other tribunal in the United States for 
conduct that violates the requirements applicable to the foreign RIN 
owner under this subpart, including conduct that violates the False 
Statements Accountability Act of 1996 (18 U.S.C. 1001) and section 
113(c)(2) of the Clean Air Act (42 U.S.C. 7413).
    (e) Bond posting. Any foreign entity shall meet the requirements of 
this paragraph (e) as a condition to approval as a foreign RIN owner 
under this subpart.
    (1) The foreign entity must post a bond of the amount calculated 
using the following equation:

Bond = G * $ 0.22

Where:

Bond = Amount of the bond in U.S. dollars.
G = The total of the number of gallon-RINs the foreign entity expects to 
          obtain, sell, transfer, or hold during the first calendar year 
          that the foreign entity is a RIN owner, plus the number of 
          gallon-RINs the foreign entity expects to obtain, sell, 
          transfer, or hold during the next four calendar years. After 
          the first calendar year, the bond amount must be based on the 
          actual number of gallon-RINs obtained, sold, or transferred so 
          far during the current calendar year plus the number of 
          gallon-RINs obtained, sold, or transferred during the four 
          calendar years immediately preceding the current calendar 
          year. For any year for which there were fewer than four 
          preceding years in which the foreign entity obtained, sold, or 
          transferred RINs, the bond must be based on the total of the 
          number of gallon-RINs sold or transferred so far during the 
          current calendar year plus the number of gallon-RINs obtained, 
          sold, or transferred during any immediately preceding calendar 
          years in which the foreign entity owned RINs, plus the number 
          of gallon-RINs the foreign entity expects to obtain, sell or 
          transfer during subsequent calendar years, the total number of 
          years not to exceed four calendar years in addition to the 
          current calendar year.

    (2) Bonds must be obtained in the proper amount from a third-party 
surety agent that is payable to satisfy United States administrative or 
judicial judgments against the foreign RIN owner, provided EPA agrees in 
advance as to the third party and the nature of the surety agreement.
    (3) All the following shall apply to bonds posted under this 
paragraph (e); bonds shall:

[[Page 248]]

    (i) Be used to satisfy any judicial judgment that results from an 
administrative or judicial enforcement action for conduct in violation 
of this subpart, including where such conduct violates the False 
Statements Accountability Act of 1996 (18 U.S.C. 1001) and section 
113(c)(2) of the Clean Air Act (42 U.S.C. 7413).
    (ii) Be provided by a corporate surety that is listed in the United 
States Department of Treasury Circular 570 ``Companies Holding 
Certificates of Authority as Acceptable Sureties on Federal Bonds''.
    (iii) Include a commitment that the bond will remain in effect for 
at least five years following the end of latest reporting period in 
which the foreign RIN owner obtains, sells, transfers, or holds RINs.
    (4) On any occasion a foreign RIN owner bond is used to satisfy any 
judgment, the foreign RIN owner shall increase the bond to cover the 
amount used within 90 days of the date the bond is used.
    (f) English language reports. Any document submitted to EPA by a 
foreign RIN owner shall be in English, or shall include an English 
language translation.
    (g) Prohibitions. (1) A foreign RIN owner is prohibited from 
obtaining, selling, transferring, or holding any RIN that is in excess 
of the number for which the bond requirements of this section have been 
satisfied.
    (2) Any RIN that is obtained, sold, transferred, or held that is in 
excess of the number for which the bond requirements of this section 
have been satisfied is an invalid RIN under Sec.  80.1431.
    (3) Any RIN that is obtained from a person located outside the 
United States that is not an approved foreign RIN owner under this 
section is an invalid RIN under Sec.  80.1431.
    (4) No foreign RIN owner or other person may cause another person to 
commit an action prohibited in this paragraph (g), or that otherwise 
violates the requirements of this section.
    (h) Additional attest requirements for foreign RIN owners. The 
following additional requirements apply to any foreign RIN owner as part 
of the attest engagement required for RIN owners under this subpart M.
    (1) The attest auditor must be independent of the foreign RIN owner.
    (2) The attest auditor must be licensed as a Certified Public 
Accountant in the United States and a citizen of the United States, or 
be approved in advance by EPA based on a demonstration of ability to 
perform the procedures required in 40 CFR 1090.1800 and Sec.  80.1464.
    (3) The attest auditor must sign a commitment that contains the 
provisions specified in paragraph (c) of this section with regard to 
activities and documents relevant to compliance with the requirements of 
40 CFR 1090.1800 and Sec.  80.1464.
    (i) Withdrawal or suspension of foreign RIN owner status. EPA may 
withdraw or suspend its approval of a foreign RIN owner where any of the 
following occur:
    (1) A foreign RIN owner fails to meet any requirement of this 
section, including, but not limited to, the bond requirements.
    (2) A foreign government fails to allow EPA inspections as provided 
in paragraph (c)(1) of this section.
    (3) A foreign RIN owner asserts a claim of, or a right to claim, 
sovereign immunity in an action to enforce the requirements in this 
subpart.
    (4) A foreign RIN owner fails to pay a civil or criminal penalty 
that is not satisfied using the foreign RIN owner bond specified in 
paragraph (e) of this section.
    (j) Additional requirements for applications, reports and 
certificates. Any application for approval as a foreign RIN owner, any 
report, certification, or other submission required under this section 
shall be:
    (1) Submitted in accordance with procedures specified by EPA, 
including use of any forms that may be specified by EPA.
    (2) Signed by the president or owner of the foreign RIN owner 
company, or by that person's immediate designee, and shall contain the 
following declaration:

    I hereby certify: (1) That I have actual authority to sign on behalf 
of and to bind [INSERT NAME OF FOREIGN RIN OWNER] with regard to all 
statements contained herein; (2) that I am aware that the information 
contained herein is being Certified, or

[[Page 249]]

submitted to the United States Environmental Protection Agency, under 
the requirements of 40 CFR part 80, subpart M, and that the information 
is material for determining compliance under these regulations; and (3) 
that I have read and understand the information being Certified or 
submitted, and this information is true, complete and correct to the 
best of my knowledge and belief after I have taken reasonable and 
appropriate steps to verify the accuracy thereof. I affirm that I have 
read and understand the provisions of 40 CFR part 80, subpart M, 
including 40 CFR 80.1467 apply to [INSERT NAME OF FOREIGN RIN OWNER]. 
Pursuant to Clean Air Act section 113(c) and 18 U.S.C. 1001, the penalty 
for furnishing false, incomplete or misleading information in this 
certification or submission is a fine of up to $10,000 U.S., and/or 
imprisonment for up to five years.

[75 FR 14863, Mar. 26, 2010, as amended at 77 FR 1358, Jan. 9, 2012; 85 
FR 78467, Dec. 4, 2020; 88 FR 44591, July 12, 2023]



Sec.  80.1468  [Reserved]



Sec.  80.1469  Requirements for Quality Assurance Plans.

    This section specifies the requirements for Quality Assurance Plans 
(QAPs) for renewable fuels and biointermediates.
    (a) Option A QAP Requirements, for Option A QAPs that were performed 
during the interim period.
    (1) Feedstock-related components. (i) Components requiring ongoing 
monitoring:
    (A) Feedstocks are renewable biomass.
    (B) Feedstocks are being separated according to a separation plan, 
if applicable under Sec.  80.1426(f)(5)(ii).
    (C) Crop and crop residue feedstocks meet land use restrictions, or 
alternatively the aggregate compliance provisions of Sec.  80.1454(g).
    (D) If applicable, verify that feedstocks with additional 
recordkeeping requirements meet requirements of Sec.  80.1454(d).
    (E) Feedstocks are valid for the D code being used, and are 
consistent with information recorded in EMTS.
    (F) Feedstock is consistent with production process and D code being 
used from the approved pathway.
    (G) Feedstock is not renewable fuel for which RINs were previously 
generated.
    (ii) Components requiring quarterly monitoring:
    (A) Separated food waste or separated yard waste plan is accepted 
and up to date, if applicable under Sec.  80.1426(f)(5)(ii).
    (B) Separated municipal solid waste plan is approved and up to date, 
if applicable under Sec.  80.1426(f)(5)(ii).
    (C) Contracts or agreements for feedstock acquisition are sufficient 
for facility production.
    (D) Feedstock processing and storage equipment are sufficient and 
are consistent with the most recent engineering review under Sec.  
80.1450(b)(2).
    (E) If applicable, accuracy of feedstock energy FE calculation 
factors related to feedstocks, including average moisture content m and 
feedstock energy content E.
    (2) Production process-related components. (i) Components requiring 
ongoing monitoring:
    (A) Production process is consistent with that reported in EMTS.
    (B) Production process is consistent with D code being used from the 
approved pathway.
    (C) Certificates of analysis verifying fuel type and quality, as 
applicable.
    (ii) Components requiring quarterly monitoring:
    (A) Mass and energy balances are appropriate for type and size of 
facility.
    (B) Workforce size is appropriate for type and size of facility, and 
sufficient workers are on site for facility operations.
    (C) If applicable, process-related factors used in feedstock energy 
FE calculation are accurate, in particular the converted fraction CF.
    (D) Verify existence of quality process controls designed to ensure 
that fuel continues to meet applicable property and quality 
specifications.
    (E) Volume production is consistent with that reported to the EPA 
and EIA, as well as other federal or state reporting.
    (F) Volume production is consistent with storage and distribution 
capacity.
    (G) Volume production capacity is consistent with RFS registration.
    (3) RIN generation-related components. (i) Components requiring 
ongoing monitoring:

[[Page 250]]

    (A) Standardization of volumes pursuant to Sec.  80.1426(f)(8) are 
accurate.
    (B) Renewable fuel type matches the D code being used.
    (C) RIN generation is consistent with wet gallons produced or 
imported.
    (D) Fuel shipments are consistent with production volumes.
    (E) If applicable, renewable content R is accurate pursuant to Sec.  
80.1426(f)(9).
    (F) Equivalence value EqV is accurate and appropriate.
    (G) Renewable fuel was intended and sold for qualifying uses as 
transportation fuel, heating oil, or jet fuel.
    (H) Verify that appropriate RIN generation calculations are being 
followed under Sec.  80.1426(f)(3), (f)(4), or (f)(5), as applicable.
    (ii) Components requiring quarterly monitoring:
    (A) Registration, reporting and recordkeeping components.
    (B) [Reserved]
    (4) RIN separation-related components. (i) Components requiring 
ongoing monitoring:
    (A) If applicable, verify that RIN separation is appropriate under 
Sec.  80.1429(b)(4).
    (B) If applicable, verify that RINs were retired for any fuel that 
the producer produced and exported.
    (ii) Components requiring quarterly monitoring:
    (A) Verify that annual attestation report is accurate.
    (B) [Reserved]
    (b) Option B QAP Requirements, for Option B QAPs that were performed 
during the interim period. All components specified in this paragraph 
(b) require quarterly monitoring, except for paragraph (b)(4)(iii) of 
this section, which must be done annually.
    (1) Feedstock-related components. (i) Feedstocks are renewable 
biomass.
    (ii) If applicable, separated food waste or separated yard waste 
plan under Sec.  80.1426(f)(5)(ii) is accepted and up to date.
    (iii) If applicable, separated municipal solid waste plan under 
Sec.  80.1426(f)(5)(ii) is approved and current.
    (iv) Feedstocks are being separated according to a separation plan, 
if applicable under Sec.  80.1426(f)(5)(ii).
    (v) Crop and crop residue feedstocks meet land use restrictions, or 
alternatively the aggregate compliance provisions of Sec.  80.1454(g).
    (vi) Feedstock is consistent with production process and D code 
being used from the approved pathway, and is consistent with information 
recorded in EMTS.
    (vii) Feedstock is not renewable fuel for which RINs were previously 
generated.
    (viii) If applicable, accuracy of feedstock energy FE calculation 
factors related to feedstocks, including average moisture content m and 
feedstock energy content E.
    (2) Production process-related components. (i) Production process is 
consistent with that reported in EMTS.
    (ii) Production process is consistent with D code being used from 
the approved pathway.
    (iii) Mass and energy balances are appropriate for type and size of 
facility.
    (iv) If applicable, process-related factors used in feedstock energy 
FE calculation are accurate, in particular the converted fraction CF.
    (3) RIN generation-related components. (i) Renewable fuel was 
intended and sold for qualifying uses as transportation fuel, heating 
oil, or jet fuel.
    (ii) Certificates of analysis verifying fuel type and quality, as 
applicable.
    (iii) Renewable fuel type matches the D code being used.
    (iv) If applicable, renewable content R is accurate pursuant to 
Sec.  80.1426(f)(9).
    (v) Equivalence value EqV is accurate and appropriate.
    (vi) Volume production capacity is consistent with RFS registration.
    (vii) Verify that appropriate RIN generation calculations are being 
followed under Sec.  80.1426(f)(3), (f)(4), or (f)(5), as applicable.
    (4) RIN separation-related components. (i) If applicable, verify 
that RIN separation is appropriate under Sec.  80.1429(b)(4).
    (ii) Verify that fuel that is exported was not used to generate 
RINs, or alternatively that were generated but retired.
    (iii) Verify that annual attestation report is accurate.
    (c) QAP Requirements. All components specified in this paragraph (c) 
require

[[Page 251]]

quarterly monitoring, except for paragraph (c)(4)(iii) of this section 
which must be done annually.
    (1) Feedstock-related components. (i) Feedstocks are renewable 
biomass.
    (ii) If applicable, plans under Sec.  80.1426(f)(5)(ii) are accepted 
and up to date.
    (iii) If applicable, separated municipal solid waste plan under 
Sec.  80.1426(f)(5) is approved and current.
    (iv) Feedstocks are being separated according to a separation plan, 
if applicable under Sec.  80.1426(f)(5).
    (v) Crop and crop residue feedstocks meet land use restrictions, or 
alternatively the aggregate compliance provisions of Sec.  80.1454(g).
    (vi) Feedstock(s) and biointermediate(s) are consistent with 
production process and D code being used as permitted under the approved 
pathway and is consistent with information recorded in EMTS.
    (vii) Feedstock(s) and biointermediate(s) are not renewable fuel for 
which RINs were previously generated unless the RINs were generated 
under Sec.  80.1426(c)(6). For renewable fuels that have RINs generated 
under Sec.  80.1426(c)(6), verify that renewable fuels used as a 
feedstock meet all applicable requirements of this paragraph (c)(1).
    (viii) If applicable, accuracy of feedstock energy FE calculation 
factors related to feedstocks, including average moisture content m and 
feedstock energy content E.
    (2) Production process-related components. (i) Production process is 
consistent with the renewable fuel producer or biointermediate 
producer's registration under Sec.  80.1450(b).
    (ii) Mass and energy balances are appropriate for type and size of 
facility.
    (iii) If applicable, process-related factors used in feedstock 
energy FE calculation are accurate, in particular the converted fraction 
CF, pursuant to Sec.  80.1426(f)(3).
    (3) RIN generation-related components. (i) If applicable, renewable 
fuel was designated for qualifying uses as transportation fuel, heating 
oil, or jet fuel in the covered location pursuant to Sec.  80.1453.
    (ii) Certificates of analysis verifying fuel type and quality, as 
applicable.
    (iii) Renewable fuel type matches the D code being used.
    (iv) If applicable, renewable content R is accurate pursuant to 
Sec.  80.1426(f)(9).
    (v) Equivalence value EqV is accurate and appropriate.
    (vi) Volume production capacity is consistent with RFS registration.
    (vii) Verify that appropriate RIN generation calculations are being 
followed under Sec.  80.1426(f)(3), (f)(4), or (f)(5), as applicable.
    (viii) RIN generation is consistent with wet gallons produced or 
imported.
    (4) Other RIN-related components. (i) If applicable, verify that RIN 
separation is appropriate under Sec.  80.1429(b).
    (ii) Verify that fuel that is exported was not used to generate 
RINs, or alternatively that were generated but retired pursuant to Sec.  
80.1430.
    (iii) Verify that annual attestation report is accurate.
    (5) Representative sampling. Independent third-party auditors may 
use a representative sample of batches of renewable fuel or 
biointermediate in accordance with the procedures described in 40 CFR 
1090.1805 for all components of this paragraph (c) except for paragraphs 
(c)(1)(ii) and (iii), (c)(2)(ii), (c)(3)(vi), and (c)(4)(ii) and (iii) 
of this section. If a facility produces both a renewable fuel and a 
biointermediate, the independent third-party auditor must select 
separate representative samples for the renewable fuel and 
biointermediate.
    (6) Documentation. Independent third-party auditors must review all 
relevant registration information under Sec.  80.1450, reporting 
information under Sec.  80.1451, and recordkeeping information under 
Sec.  80.1454, as well as any other relevant information and 
documentation required under this part, to verify elements in a QAP 
approved by EPA under this section.
    (d) In addition to a general QAP encompassing elements common to all 
pathways, for each QAP there must be at least one pathway-specific plan 
for an approved pathway, which must contain elements specific to 
particular feedstocks, production processes, and fuel types, as 
applicable.
    (e) Submission and approval of a QAP. (1) Each independent third-
party auditor shall annually submit a general and

[[Page 252]]

at least one pathway-specific QAP to the EPA which demonstrates 
adherence to the requirements of paragraphs (a) and (d), (b) and (d), or 
(c) and (d) of this section, as applicable, and request approval on 
forms and using procedures specified by EPA.
    (2) No third-party independent auditor may present a QAP as approved 
by the EPA without having received written approval from the EPA.
    (3) A QAP is approved on the date that the EPA notifies the third-
party independent auditor of such approval.
    (4) The EPA may revoke its approval of a QAP for cause, including, 
but not limited to, an EPA determination that the approved QAP has 
proven to be inadequate in practice.
    (5) The EPA may void ab initio its approval of a QAP upon the EPA's 
determination that the approval was based on false information, 
misleading information, or incomplete information, or if there was a 
failure to fulfill, or cause to be fulfilled, any of the requirements of 
the QAP.
    (f) Conditions for revisions of a QAP. (1) A new QAP must be 
submitted to EPA according to paragraph (e) of this section and the 
independent third-party auditor must update their registration according 
to Sec.  80.1450(g)(9) whenever any of the following changes occur at a 
renewable fuel or biointermediate production facility audited by an 
independent third-party auditor and the auditor does not possess an 
appropriate pathway-specific QAP that encompasses the change:
    (i) Change in feedstock or biointermediates.
    (ii) Change in type of fuel or biointermediate produced.
    (iii) Change in facility operations or equipment that may impact the 
capability of the QAP to verify that RINs are validly generated or 
biointermediates are properly produced.
    (2) A QAP ceases to be valid as the basis for verifying RINs or a 
biointermediate under a new pathway until a new pathway-specific QAP, 
submitted to the EPA under this paragraph (f), is approved pursuant to 
paragraph (e) of this section.

[79 FR 42119, July 18, 2014, as amended at 85 FR 7083, Feb. 6, 2020; 85 
FR 78467, Dec. 4, 2020; 87 FR 39673, July 1, 2022; 88 FR 44592, July 12, 
2023]



Sec.  80.1470  RIN replacement mechanisms for Option A independent
third party auditors.

    (a) Applicability. This section applies to independent third-party 
auditors using a QAP approved under Option A pursuant to Sec.  
80.1469(a) and (d) during the interim period.
    (b) Requirements. An independent third party auditor must establish 
or participate in the establishment of a RIN replacement mechanism. The 
RIN replacement mechanism must fulfill, at a minimum, all the following 
conditions:
    (1) The RIN replacement mechanism must be capable of fulfilling the 
independent third party auditor's RIN replacement responsibility, as 
described in Sec.  80.1474(b)(5)(i).
    (2) The independent third party auditor is responsible for 
calculating and maintaining the minimum coverage afforded by the RIN 
replacement mechanism at all times.
    (3) RINs held by the RIN replacement mechanism (if any) must be 
identified in a unique EMTS account designated for the exclusive use of 
the replacement mechanism.
    (4) Distribution and removal of RINs from the replacement mechanism 
may not be under the sole operational control of the third-party 
auditor.
    (5) An originally signed duplicate of the agreement or contract 
establishing the RIN replacement mechanism must be submitted to the EPA 
by the independent third party auditor in accordance with Sec.  
80.1450(g)(7).
    (6) Any substantive change to the agreement establishing the RIN 
replacement mechanism must be submitted to the EPA within 30 days of the 
change.
    (c) Cap on RIN replacement for independent third party auditors of 
A-RINs. (1) If required to replace invalid A-RINs pursuant to paragraph 
(b) of this section, the independent third party auditor shall be 
required to replace no more than the percentage specified in

[[Page 253]]

paragraph (c)(2) of this section of each D code of A-RINs verified by 
the auditor in the current calendar year and four previous calendar 
years.
    (2) The cap on RIN replacement for auditors of A-RINs shall be two 
percent for A-RINs generated in the interim period.
    (3) The auditor's potential replacement responsibility for a given 
RIN will expire at the end of the fourth calendar year after the 
calendar year in which the RIN was verified.
    (d) Applicability of the RIN replacement cap. The cap on RIN 
replacement does not apply when invalid verified RINs are a result of 
auditor error, omission, negligence, fraud, collusion with the renewable 
fuel producer, or a failure to implement the QAP properly or fully.

[79 FR 42121, July 18, 2014]



Sec.  80.1471  Requirements for QAP auditors.

    (a) QAP audits conducted pursuant to Sec.  80.1472 must be conducted 
by an independent third-party auditor.
    (b) To be considered an independent third-party auditor under 
paragraph (a) of this section, all the following conditions must be met:
    (1) The independent third-party auditor and its contractors and 
subcontractors must not be owned or operated by the audited party or any 
subsidiary or employee of the audited party.
    (2) The independent third-party auditor and its contractors and 
subcontractors shall not be owned or operated by an obligated party or 
any subsidiary or employee of an obligated party.
    (3) The independent third-party auditor shall not own, buy, sell, or 
otherwise trade RINs unless required to maintain a financial assurance 
mechanism for a QAP implemented under QAP Option A pursuant to Sec.  
80.1469(a) during the interim period or to replace an invalid RIN 
pursuant to Sec.  80.1474.
    (4) The independent third-party auditor and its contractors and 
subcontractors must be free from any interest or the appearance of any 
interest in the audited party's business.
    (5) The audited party must be free from any interest or the 
appearance of any interest in the third-party auditor's business and the 
businesses of third-party auditor's contractors and subcontractors.
    (6) The independent third-party auditor and its contractors and 
subcontractors must not have performed an attest engagement under Sec.  
80.1464(b) for the audited party for the same compliance period as a QAP 
audit conducted pursuant to Sec.  80.1472.
    (7) The independent third-party auditor and its contractors and 
subcontractors must not be debarred, suspended, or proposed for 
debarment pursuant to the Government-wide Debarment and Suspension 
regulations, 40 CFR part 32, or the Debarment, Suspension and 
Ineligibility provisions of the Federal Acquisition Regulations, 48 CFR 
part 9, subpart 9.4.
    (8) The independent third-party auditor and its contractors and 
subcontractors must act impartially when performing all activities under 
this section.
    (9) The independent third-party auditor and its contractors and 
subcontractors must be free from any interest in the audited party's 
business and receive no financial benefit from the outcome of auditing 
service, apart from payment for the auditing services.
    (10) The independent third-party auditor and its contractors and 
subcontractors must not have been involved in the design or construction 
of the audited facility.
    (11) The independent third-party auditor and its contractors and 
subcontractors must ensure that all personnel involved in the third-
party audit (including the verification activities) under this section 
are not negotiating for future employment with the owner or operator of 
the audited party. At a minimum, prior to conducting the audit, the 
independent third-party auditor must obtain an attestation (or similar 
document) from each person involved in the audit stating that they are 
not negotiating for future employment with the owner or operator of the 
audited party.
    (12) The independent third-party auditor and its contractors and 
subcontractors must have written policies and procedures to ensure that 
the independent third-party auditor and all personnel under the 
independent third-party auditor's direction or supervision

[[Page 254]]

comply with the competency, independence, and impartiality requirements 
of this section.
    (c) Independent third-party auditors must maintain professional 
liability insurance. Independent third-party auditors must use insurance 
providers that possess a financial strength rating in the top four 
categories from Standard & Poor's or Moody's (i.e., AAA, AA, A, or BBB 
for Standard & Poor's and Aaa, Aa, A, or Baa for Moody's), or a 
comparable rating acceptable to EPA. Independent third-party auditors 
must disclose the level of professional liability insurance they possess 
when entering into contracts to provide RIN verification services.
    (d)(1) In the event that an independent third-party auditor 
identifies a RIN that may have been invalidly generated, the independent 
third-party auditor shall, within five business days, send notification 
of the potentially invalidly generated RIN to the EPA and the renewable 
fuel producer that generated the RIN.
    (2) The independent third-party auditor shall provide the 
notification required under paragraph (d)(1) of this section in writing 
(which includes email or facsimile) and, if requested by the party being 
notified of a potentially invalidly generated RIN, by telephone.
    (e) The independent third-party auditor shall identify RINs 
generated from a renewable fuel producer or foreign renewable fuel 
producer as having been verified under a QAP.
    (1) For RINs verified under QAP Option A pursuant to Sec.  
80.1469(a) during the interim period, RINs shall be designated as A-
RINs.
    (2) For RINs verified under QAP Option B pursuant to Sec.  
80.1469(b), during the interim period, RINs shall be designated as B-
RINs.
    (3) For RINs verified under a QAP pursuant to Sec.  80.1469(c), RINs 
shall be designated as Q-RINs and shall be identified as having been 
verified under a QAP in EMTS.
    (4) The independent third-party auditor shall not identify RINs 
generated from a renewable fuel producer or foreign renewable fuel 
producer as having been verified under a QAP if a revised QAP must be 
submitted to and approved by the EPA under Sec.  80.1469(f).
    (5) The independent third-party auditor must not identify RINs 
generated for renewable fuel produced using a biointermediate as having 
been verified under a QAP unless the biointermediate used to produce the 
renewable fuel was verified under an approved QAP pursuant to Sec.  
80.1477.
    (f)(1) Except as specified in paragraph (f)(2) of this section, 
auditors may only verify RINs that have been generated after the audit 
required under Sec.  80.1472 has been completed. Auditors may only 
verify biointermediates that were produced after the audit required 
under Sec.  80.1472 has been completed. Auditors must only verify RINs 
generated from renewable fuels produced from biointermediates after the 
audit required under Sec.  80.1472 has been completed for both the 
biointermediate production facility and the renewable fuel production 
facility.
    (i) For A-RINs, ongoing monitoring must have been initiated.
    (ii) Verification of RINs or biointermediates may continue for no 
more than 200 days following an on-site visit or 380 days after an on-
site visit if a previously the EPA-approved remote monitoring system is 
in place at the renewable fuel production facility.
    (2) Auditors may verify RINs that were generated before the audit 
required under Sec.  80.1472 has been completed, under the following 
conditions:
    (i) The RINs in question were generated during the interim period.
    (ii) The audit is completed during the interim period.
    (iii) The audit is performed in accordance with the elements 
specified in a QAP that has been approved by the EPA per Sec.  
80.1469(e).
    (iv) The audit requirements of Sec.  80.1472 are met for every batch 
of renewable fuel for which RINs were generated and are being verified.
    (v) The auditor may not perform more than one audit under this 
subparagraph for any single RIN generator.
    (g) The independent third-party auditor must permit any 
representative of the EPA to monitor at any time the implementation of 
QAPs and renewable

[[Page 255]]

fuel and biointermediate production facility audits.
    (h) Any person who fails to meet a requirement under of this section 
shall be subject to a separate violation pursuant to Sec.  80.1460(f).

[79 FR 42122, July 18, 2014, as amended at 80 FR 9098, Feb. 19, 2015; 87 
FR 39674, July 1, 2022; 88 FR 44592, July 12, 2023]



Sec.  80.1472  Requirements for quality assurance audits.

    (a) General requirements. (1) An audit shall be performed by an 
auditor who meets the requirements of Sec.  80.1471.
    (2) An audit shall be based on either an Option A QAP per Sec.  
80.1469(a) during the interim period, an Option B QAP per Sec.  
80.1469(b) during the interim period, or a QAP per Sec.  80.1469(c).
    (3) Each audit shall verify every element contained in an applicable 
and approved QAP.
    (4) Each audit shall include a review of documents generated by the 
renewable fuel producer or biointermediate producer.
    (b) On-site visits--(1) Option A QAP during the interim period. (i) 
The auditor shall conduct an on-site visit at the renewable fuel 
production facility at least 4 times per calendar year.
    (ii) The on-site visits specified in paragraph (b)(1)(i) of this 
section shall occur at least 60 days apart. The 60-day period shall 
start the day after the previous on-site ends.
    (iii) The on-site visit shall include verification of all QAP 
elements that require inspection or evaluation of the physical 
attributes of the renewable fuel production facility, except for any 
physical attribute that is verified through remote monitoring equipment 
per the applicable QAP.
    (2) Option B QAP during the interim period. (i) The auditor shall 
conduct an on-site visit at the renewable fuel production facility at 
least 4 times per calendar year.
    (ii) The on-site visits specified in paragraph (b)(2)(i) of this 
section shall occur at least 60 days apart. The 60-day period shall 
start the day after the previous on-site ends.
    (iii) The on-site visit shall include verification of all QAP 
elements that require inspection or evaluation of the physical 
attributes of the renewable fuel production facility.
    (3) QAP. (i) As applicable, the independent third-party auditor 
shall conduct an on-site visit at the renewable fuel production 
facility, foreign ethanol production facility, or biointermediate 
production facility:
    (A) At least two times per calendar year; or
    (B) In the event an auditor uses a remote monitoring system approved 
by the EPA, at least one time per calendar year.
    (ii) An on-site visit specified in paragraph (b)(3)(i) of this 
section shall occur no more than:
    (A) 200 days after the previous on-site visit. The 200-day period 
shall start the day after the previous on-site visit ends; or
    (B) 380 days after the previous on-site visit if a previously 
approved (by EPA) remote monitoring system is in place at the renewable 
fuel production facility, foreign ethanol production facility, or 
biointermediate production facility, as applicable. The 380-day period 
shall start the day after the previous on-site visit ends.
    (iii) An on-site visit shall include verification of all QAP 
elements that require inspection or evaluation of the physical 
attributes of the renewable fuel production facility, foreign ethanol 
production facility, or biointermediate production facility, as 
applicable.
    (iv) The on-site visit shall be overseen by a professional engineer, 
as specified in Sec.  80.1450(b)(2)(i)(A) and (b)(2)(i)(B).

[79 FR 42122, July 18, 2014, as amended at 85 FR 7083, Feb. 6, 2020; 87 
FR 39674, July 1, 2022]



Sec.  80.1473  Affirmative defenses.

    (a) Criteria. Any person who engages in actions that would be a 
violation of the provisions of either Sec.  80.1460(b)(2) or (c)(1), 
other than the generator of an invalid RIN, will not be deemed in 
violation if the person demonstrates that the criteria under paragraphs 
(c), (d), or (e) of this section are met.
    (b) Applicability of affirmative defenses. The following provisions 
apply to affirmative defenses asserted under paragraph (a) of this 
section:

[[Page 256]]

    (1) Affirmative defenses only apply to RINs that were invalidly 
generated and verified through a quality assurance audit using an EPA-
approved QAP.
    (2) Affirmative defenses only apply in situations where an invalidly 
generated verified RIN is either transferred to another person 
(violation of Sec.  80.1460(b)(2)) or used for compliance for an 
obligated party's RVO (use violation of Sec.  80.1460(c)(1)).
    (3) Affirmative defenses do not apply to the generator of an invalid 
RIN.
    (c) Asserting an affirmative defense for invalid A-RINs verified 
during the interim period. To establish an affirmative defense to a 
violation of Sec.  80.1460(b)(2) or (c)(1) involving invalid A-RINs, the 
person must meet the notification requirements of paragraph (f) of this 
section and prove by a preponderance of evidence all of the following:
    (1) The RIN in question was verified through a quality assurance 
audit pursuant to Sec.  80.1472 using an approved Option A QAP as 
specified in Sec.  80.1469(a).
    (2) The person did not know or have reason to know that the RINs 
were invalidly generated prior to being verified by the independent 
third-party auditor.
    (3) If the person self-identified the RIN as having been invalidly 
generated, the person notified the EPA within five business days of 
discovering the invalidity.
    (4) The person did not cause the invalidity.
    (5) The person did not have a financial interest in the company that 
generated the invalid RIN.
    (d) Asserting an affirmative defense for invalid B-RINs verified 
during the interim period. To establish an affirmative defense to a 
violation of Sec.  80.1460(b)(2) or (c)(1) involving invalid B-RINs, the 
person must meet the notification requirements of paragraph (f) of this 
section and prove by a preponderance of evidence all of the following:
    (1) The RIN in question was verified through a quality assurance 
audit pursuant to Sec.  80.1472 using an approved Option B QAP as 
specified in Sec.  80.1469(b).
    (2) The person did not know or have reason to know that the RINs 
were invalidly generated at the time of transfer or use for compliance, 
unless the RIN generator replaced the RIN pursuant to Sec.  80.1474.
    (3) If the person self-identified the RIN as having been invalidly 
generated, the person notified the EPA within five business days of 
discovering the invalidity.
    (4) The person did not cause the invalidity.
    (5) The person did not have a financial interest in the company that 
generated the invalid RIN.
    (6) If the person used the invalid B-RIN for compliance, the person 
adjusted its records, reports, and compliance calculations in which the 
invalid B-RIN was used as required by Sec.  80.1431, unless the RIN 
generator replaced the RIN pursuant to Sec.  80.1474.
    (e) Asserting an affirmative defense for invalid Q-RINs. To 
establish an affirmative defense to a violation of Sec.  80.1460(b)(2) 
or (c)(1) involving invalid Q-RINs, the person must meet the 
notification requirements of paragraph (f) of this section and prove by 
a preponderance of evidence all of the following:
    (1) The RIN in question was verified through a quality assurance 
audit pursuant to Sec.  80.1472 using an approved QAP as specified in 
Sec.  80.1469(c).
    (2) The person did not know or have reason to know that the RINs 
were invalidly generated at the time of transfer or use for compliance, 
unless the RIN generator replaced the RIN pursuant to Sec.  80.1474.
    (3) If the person self-identified the RIN as having been invalidly 
generated, the person notified the EPA within five business days of 
discovering the invalidity.
    (4) The person did not cause the invalidity.
    (5) The person did not have a financial interest in the company that 
generated the invalid RIN.
    (6) If the person used the invalid Q-RIN for compliance, the person 
adjusted its records, reports, and compliance calculations in which the 
invalid Q-RIN was used as required by Sec.  80.1431, unless the RIN 
generator replaced the RIN pursuant to Sec.  80.1474.
    (f) Notification requirements. A person asserting an affirmative 
defense to a

[[Page 257]]

violation of Sec.  80.1460(b)(2) or (c)(1), arising from the transfer or 
use of an invalid A-RIN, B-RIN, or Q-RIN must submit a written report to 
the EPA via the EMTS support line ([email protected]), 
including all pertinent supporting documentation, demonstrating that the 
requirements of paragraphs (c), (d), or (e) of this section were met. 
The written report must be submitted within 30 days of the person 
discovering the invalidity.

[79 FR 42123, July 18, 2014, as amended at 87 FR 39674, July 1, 2022; 88 
FR 44592, July 12, 2023]



Sec.  80.1474  Replacement requirements for invalidly generated RINs.

    (a) Responsibility for replacement of invalid verified RINs. (1) The 
generator of the A-RIN and the independent third-party auditor that 
verified the A-RIN are required to replace invalidly generated A-RINs 
with valid RINs pursuant to the procedures specified in paragraph (b) of 
this section.
    (2) The generator of the B-RIN and the obligated party that owns the 
B-RIN are required to replace invalidly generated B-RINs with valid RINs 
pursuant to the procedures specified in paragraph (b) of this section.
    (3) The generator of the Q-RIN and the obligated party that owns the 
Q-RIN are required to replace invalidly generated Q-RINs with valid RINs 
pursuant to the procedures specified in paragraph (b) of this section.
    (4) The generator of an unverified RIN and the obligated party that 
owns an unverified RIN are required to replace invalidly generated and 
unverified RINs pursuant to the procedures specified in paragraph (b) of 
this section.
    (b) Identification and treatment of potentially invalid RINs (PIRs). 
(1) Any RIN can be identified as a PIR by the RIN generator, an 
independent third-party auditor that verified the RIN, or the EPA.
    (2) For PIRs identified by the RIN generator, the generator is 
required to notify the EPA via the EMTS support line 
([email protected]) within five business days of the 
identification, including an initial explanation of why the RIN is 
believed to be invalid, and is required to take any of the following 
corrective actions within 30 days:
    (i) Retire the PIR.
    (ii) Retire a valid RIN meeting the requirements of paragraph (d) of 
this section.
    (3) For PIRs identified by the independent third-party auditor that 
verified the RIN, the independent third-party auditor is required to 
notify the EPA via the EMTS support line ([email protected]) 
and the RIN generator in writing within five business days of the 
identification, including an initial explanation of why the RIN is 
believed to be invalid.
    (4) Within 30 days of being notified by the EPA or the independent 
third-party auditor that verified the RIN that a RIN is a PIR, the RIN 
generator is required to take one of the following actions:
    (i) In the event that the EPA identifies a RIN as a PIR, do one of 
the following:
    (A) Retire the PIR.
    (B) Retire a valid RIN following the requirements of paragraph (d) 
of this section.
    (C) Submit a demonstration in writing to the EPA via the EMTS 
support line ([email protected]) that the PIR is valid.
    (1) If the EPA determines that the demonstration is satisfactory, 
the RIN will no longer be considered a PIR.
    (2) If the EPA determines that the demonstration is not 
satisfactory, the PIR will be deemed invalid and the PIR generator must 
retire the PIR or a valid RIN following the requirements of paragraph 
(d) of this section within 30 days of notification by the EPA.
    (ii) In the event that the independent third-party auditor 
identifies a RIN as a PIR, do one of the following:
    (A) Retire the PIR.
    (B) Retire a valid RIN following the requirements of paragraph (d) 
of this section.
    (C) Submit a demonstration in writing to the independent third-party 
auditor and the EPA via the EMTS support line 
([email protected]) that the PIR is valid.

[[Page 258]]

    (1) If the independent third-party auditor determines that the 
demonstration is satisfactory, the PIR will be deemed to be a valid RIN; 
however, the EPA reserves the right to make a determination regarding 
the validity of the RIN.
    (2) If the independent third-party auditor determines that the 
demonstration is not satisfactory, the EPA will then make a 
determination whether the demonstration is not satisfactory, and if so, 
the PIR will be deemed invalid and the PIR generator must retire the PIR 
or a valid RIN following the requirements of paragraph (d) of this 
section within 30 days of notification by the EPA.
    (5) Within 60 days of receiving a notification from the EPA that a 
PIR generator has failed to perform a corrective action required 
pursuant to this section:
    (i) For A-RINs, the independent third-party auditor that verified 
the PIR is required to retire valid RINs meeting the requirements of 
paragraph (d) of this section.
    (ii) For Q-RINs, B-RINs, and unverified RINs, the party that owns 
the invalid RIN is required to do one of the following:
    (A) Retire the invalid RIN.
    (B) If the invalid RIN has already been used for compliance with an 
obligated party's RVO, correct the RVO to subtract the invalid RIN.
    (c) Failure to take corrective action. Any person who fails to meet 
a requirement under paragraph (b)(4) or (b)(5) of this section shall be 
liable for full performance of such requirement, and each day of non-
compliance shall be deemed a separate violation pursuant to Sec.  
80.1460(f). The administrative process for replacement of invalid RINs 
does not, in any way, limit the ability of the United States to exercise 
any other authority to bring an enforcement action under section 211 of 
the Clean Air Act, the fuels regulations at 40 CFR part 80, or any other 
applicable law.
    (d) The following specifications apply when retiring valid RINs to 
replace PIRs or invalid RINs:
    (1) When a RIN is retired to replace a PIR or invalid RIN, the D 
code of the retired RIN must be eligible to be used towards meeting all 
the renewable volume obligations as the PIR or invalid RIN it is 
replacing, as specified in Sec.  80.1427(a)(2).
    (2) The number of RINs retired must be equal to the number of PIRs 
or invalid RINs being replaced, subject to paragraph (e) or (f) of this 
section if applicable, and Sec.  80.1470(c).
    (e) Limited exemption for invalid B-RINs verified during the interim 
period. (1) In the event that an obligated party is required to retire 
or replace an invalid RIN that is a B-RIN pursuant to paragraph (b) of 
this section, the obligated party will be afforded a ``limited 
exemption'' (LE) equal to two percent of its annual Renewable Volume 
Obligation (RVO) for calendar years 2013 and 2014 during the interim 
period.
    (2) Limited exemptions are calculated as follows:

LECB,i = 0.02 x RVOCB,i
LEBBD,i = 0.02 x RVOBBD,i
LEAB,i = 0.02 x RVOAB,i
LERF,i = 0.02 x RVORF,i

Where:

LECB,i = Limited exemption for cellulosic biofuel for year i.
LEBBD,i = Limited exemption for biomass-based diesel for year 
          i.
LEAB,i = Limited exemption for advanced biofuel for year i.
LERF,i = Limited exemption for renewable for year i.
RVOCB,i = The Renewable Volume Obligation for cellulosic 
          biofuel for the obligated party for calendar year i, in 
          gallons, pursuant to Sec.  80.1407.
RVOBBD,i = The Renewable Volume Obligation for biomass-based 
          diesel for the obligated party for calendar year i after 2010, 
          in gallons, pursuant to Sec.  80.1407.
RVOAB,i = The Renewable Volume Obligation for advanced 
          biofuel for the obligated party for calendar year i, in 
          gallons, pursuant to Sec.  80.1407.
RVORF,i = The Renewable Volume Obligation for renewable fuel 
          for the obligated party for calendar year i, in gallons, 
          pursuant to Sec.  80.1407.

    (3) If the number of invalidly generated B-RINs required to be 
retired or replaced in a calendar year is less than or equal to LE as 
calculated in paragraph (d)(2) of this section, the entire RIN 
retirement obligation is excused.
    (4) If the number of invalidly generated B-RINs required to be 
retired or replaced in a calendar year is greater than LE as calculated 
in paragraph

[[Page 259]]

(d)(2) of this section, the retirement of a number of B-RINs equal to 
two percent of the obligated party's RVO is excused.
    (5) The limited exemption for B-RINs applies only in calendar years 
2013 and 2014 during the interim period.
    (f) Limited exemption for invalid Q-RINs. (1) In the event that an 
obligated party is required to retire or replace an invalid RIN that is 
a Q-RIN pursuant to paragraph (b) of this section, the obligated party 
will be afforded a ``limited exemption'' (LE) equal to two percent of 
its annual Renewable Volume Obligation (RVO) for calendar years 2014, 
2015, and 2016.
    (2) Limited exemptions are calculated as follows:

LECB,i = 0.02 x RVOCB,i
LEBBD,i = 0.02 x RVOBBD,i
LEAB,i = 0.02 x RVOAB,i
LERF,i = 0.02 x RVORF,i

Where:

LECB,i = Limited exemption for cellulosic biofuel for year i.
LEBBD,i = Limited exemption for biomass-based diesel for year 
          i.
LEAB,i = Limited exemption for advanced biofuel for year i.
LERF,i = Limited exemption for renewable for year i.
RVOCB,i = The Renewable Volume Obligation for cellulosic 
          biofuel for the obligated party for calendar year i, in 
          gallons, pursuant to Sec.  80.1407.
RVOBBD,i = The Renewable Volume Obligation for biomass-based 
          diesel for the obligated party for calendar year i after 2010, 
          in gallons, pursuant to Sec.  80.1407.
RVOAB,i = The Renewable Volume Obligation for advanced 
          biofuel for the obligated party for calendar year i, in 
          gallons, pursuant to Sec.  80.1407.
RVORF,i = The Renewable Volume Obligation for renewable fuel 
          for the obligated party for calendar year i, in gallons, 
          pursuant to Sec.  80.1407.

    (3) If the number of invalidly generated Q-RINs required to be 
retired or replaced in a calendar year is less than or equal to LE as 
calculated in paragraph (d)(2) of this section, the entire RIN 
retirement obligation is excused.
    (4) If the number of invalidly generated Q-RINs required to be 
retired or replaced in a calendar year is greater than LE as calculated 
in paragraph (d)(2) of this section, the retirement of a number of Q-
RINs equal to two percent of the obligated party's RVO is excused.
    (5) The limited exemption for Q-RINs applies only in calendar years 
2014, 2015, and 2016.
    (g) All parties who retire RINs under this section shall use the 
forms and follow the procedures prescribed by EPA.

[79 FR 42123, July 18, 2014, as amended at 87 FR 39674, July 1, 2022; 88 
FR 44592, July 12, 2023]



Sec.  80.1475  What are the additional attest engagement requirements 
for parties that redesignate certified NTDF as MVNRLM diesel fuel?

    (a) General requirements. (1) In addition to the attest engagement 
requirements under Sec.  80.1464, all obligated parties required to 
arrange for additional attest engagement procedures under Sec.  
80.1464(a)(1)(vii) must have an annual attest engagement conducted by an 
auditor using the minimum attest procedures specified in this section.
    (2) All applicable requirements and procedures outlined in 40 CFR 
1090.1800 through 1090.1850 apply to the auditors and attest engagement 
procedures specified in this section.
    (3) Obligated parties must include any additional information 
required under this section in the attest engagement report under Sec.  
80.1464(d).
    (4) Report as a finding if the party failed to either incur or 
satisfy an RVO if required.
    (b) EPA reports. Auditors must perform the following:
    (1) Obtain and read a copy of the obligated party's reports filed 
with EPA as required by Sec.  80.1451(a)(1)(xix) for the reporting 
period.
    (2) In the case of an obligated party's report to EPA that 
represents aggregate calculations for more than one facility, obtain the 
facility-specific volume and property information that was used by the 
refiner to prepare the aggregate report. Foot and crossfoot the 
facility-specific totals and agree to the values in the aggregate 
report. The procedures in paragraphs (b) and (c) of this section are 
then performed separately for each facility.
    (3) Obtain a written representation from a company representative 
that

[[Page 260]]

the report copies are complete and accurate copies of the reports filed 
with EPA.
    (4) Identify, and report as a finding, the name of the commercial 
computer program used by the refiner or importer to track the data 
required by the regulations in this part, if any.
    (c) Inventory reconciliation analysis. Auditors must perform the 
following:
    (1) Obtain an inventory reconciliation analysis for the facility for 
the reporting period for each of the following and perform the 
procedures at paragraphs (c)(2) through (4) of this section separately 
for each of the following products:
    (i) The volume of certified NTDF that was redesignated as MVNRLM 
diesel fuel.
    (ii) The volume of MVNRLM diesel fuel that was redesignated to a 
non-transportation use.
    (iii) The volume of MVNRLM diesel fuel owned when the fuel was 
received at the facility and acquired at the facility during the 
compliance period.
    (iv) The volume of MVNRLM diesel fuel owned and sold or transferred 
to other parties at the facility during the compliance period.
    (v) The volume of certified NTDF received.
    (vi) The volume of certified NTDF delivered.
    (2) Foot and crossfoot the volume totals reflected in the analysis.
    (3) Agree the beginning and ending inventory amounts in the analysis 
to the facility's inventory records.
    (4) If the obligated party delivered more MVNRLM diesel fuel than 
received, agree the annual balance with the reports obtained at Sec.  
80.1475(b)(1) and verify whether the obligated party incurred and 
satisfied its RVO under Sec.  80.1408(a)(2)(i).
    (5) Report as a finding each of the volume totals along with any 
discrepancies.
    (d) Listing of tenders. Auditors must perform the following:
    (1) For each of the volumes listed in paragraphs (c)(1)(iii) through 
(vi) of this section, obtain a separate listing of all tenders from the 
refiner or importer for the reporting period. Each listing should 
provide for each tender the volume shipped and other information as 
needed to distinguish tenders.
    (2) Foot to the volume totals per the listings.
    (3) Agree the volume totals on the listing to the tender volume 
total in the inventory reconciliation analysis obtained in paragraph (c) 
of this section.
    (4) For each of the listings select a representative sample of the 
tenders in accordance with the guidelines in 40 CFR 1090.1805, and for 
each tender selected perform the following:
    (i) Obtain product transfer documents associated with the tender and 
agree the volume on the tender listing to the volume on the product 
transfer documents.
    (ii) Note whether the product transfer documents include the 
information required by 40 CFR 1090.1115 and, for tenders involving the 
transfer of certified NTDF, the information required by Sec.  
80.1453(e).
    (5) Report as a finding any discrepancies.

[85 FR 7083, Feb. 6, 2020, as amended at 85 FR 78468, Dec. 4, 2020; 87 
FR 39674, July 1, 2022]



Sec.  80.1476  Requirements for biointermediate producers.

    Biointermediate producers must comply with the following 
requirements:
    (a) Registration. No later than 60 days prior to the transfer of any 
biointermediate to be used in the production of a renewable fuel for 
which RINs may be generated, biointermediate producers must register 
with EPA pursuant to the requirements of Sec.  80.1450(b).
    (b) Reporting. Biointermediate producers must comply with the 
reporting requirements in Sec.  80.1451(j).
    (c) Recordkeeping. Biointermediate producers must comply with the 
recordkeeping requirements in Sec.  80.1454(i).
    (d) PTDs. Biointermediate producers must comply with the PTD 
requirements in Sec.  80.1453(f).
    (e) Quality Assurance Plans. Prior to the transfer of any 
biointermediate to be used in the production of a renewable fuel for 
which RINs may be generated, biointermediate producers must have an 
approved quality assurance plan pursuant to Sec.  80.1477(b) and the 
independent third-party auditor

[[Page 261]]

must have conducted a site visit of the biointermediate production 
facility under Sec.  80.1472.
    (f) Attest engagements. Biointermediate producers must comply with 
the annual attest engagement requirements in Sec.  80.1464(h).
    (g) Limitations on biointermediate transfers and production. (1) A 
biointermediate producer must transfer all biointermediates produced 
from a single biointermediate facility to a single renewable fuel 
production facility as designated under Sec.  80.1450(b)(1)(ii)(B)(1).
    (2)(i) Except as specified in paragraph (g)(2)(ii) of this section, 
a batch of biointermediate must be segregated from other batches of 
biointermediate (even if it is the same type of biointermediate), other 
feedstocks, foreign ethanol, and renewable fuels from the point that the 
batch of biointermediate is produced to the point where the batch of 
biointermediate is received at the renewable fuel production facility 
designated under Sec.  80.1450(b)(1)(ii)(B)(1).
    (ii)(A) Batches of biointermediate may be commingled between the 
biointermediate production facility and the designated renewable fuel 
production facility as long as each batch is produced at the same 
biointermediate production facility, is the same type of 
biointermediate, and no other feedstocks, biointermediates, foreign 
ethanol, or renewable fuels are comingled.
    (B) A renewable fuel producer may commingle batches of 
biointermediate at an off-site storage tank if all the following 
conditions are met:
    (1) Only batches of the same type of biointermediate are commingled 
and no other feedstocks, biointermediates, foreign ethanol, or renewable 
fuels are comingled in the off-site storage tank.
    (2) The renewable fuel producer owns or is the sole position holder 
in the off-site storage tank.
    (3) Renewable fuel producers that receive biointermediate at a 
renewable fuel production facility may not be a biointermediate 
producer.
    (4) A biointermediate must not be used to make another 
biointermediate.
    (5) A foreign biointermediate producer must not transfer 
biointermediate to a non-RIN-generating foreign producer.
    (h) Batch numbers and volumes. (1) Each batch of biointermediate 
produced at a biointermediate production facility must be assigned a 
number (the ``batch number''), consisting of the EPA-assigned company 
registration number, the EPA-assigned facility registration number, the 
last two digits of the year in which the batch was produced, and a 
unique number for the batch, beginning with the number one for the first 
batch produced each calendar year and each subsequent batch during the 
calendar year being assigned the next sequential number (e.g., 4321-
54321-95-000001, 4321-54321-95-000002, etc.).
    (2) For biointermediates measured on a volume basis, the volume of 
each batch of biointermediate must be adjusted to a standard temperature 
of 60 [deg]F as specified in Sec.  80.1426(f)(8).
    (i) Designation. Each batch of biointermediate produced at a 
biointermediate production facility must be designated for use in the 
production of a renewable fuel in accordance with the biointermediate 
producer's registration under Sec.  80.1450. The designation for the 
batch of biointermediate must be clearly indicated on PTDs for the 
biointermediate as described in Sec.  80.1453(f)(1)(vi). The same batch 
or a portion of a batch may not be designated as both a biointermediate 
and a renewable fuel.

[87 FR 39675, July 1, 2022]



Sec.  80.1477  Requirements for QAPs for biointermediate producers.

    (a) Independent third-party auditors that verify biointermediate 
production must meet the requirements of Sec.  80.1471(a) through (c) 
and (f) through (h), as applicable.
    (b) QAPs approved by EPA to verify biointermediate production must 
meet the requirements in Sec.  80.1469(c) through (f), as applicable.
    (c) Quality assurance audits, when performed, must be conducted in 
accordance with the requirements in Sec.  80.1472(a) and (b)(3).
    (d)(1) If an independent third-party auditor identifies a 
potentially improperly produced biointermediate, the independent third-
party auditor must notify EPA, the biointermediate producer, and the 
renewable fuel producer

[[Page 262]]

that may have been transferred the biointermediate within five business 
days of the identification, including an initial explanation of why the 
biointermediate may have been improperly produced.
    (2) If RINs were generated from the potentially improperly produced 
biointermediate, the RIN generator must follow the applicable 
identification and treatment of PIRs as specified in Sec.  80.1474.
    (e) For the generation of Q-RINs for renewable fuels that were 
produced from a biointermediate, the biointermediate must be verified 
under an approved QAP as described in paragraph (b) of this section and 
the RIN generating facility must be verified under an approved QAP as 
described in Sec.  80.1469.

[87 FR 39675, July 1, 2022]



Sec.  80.1478  Requirements for foreign biointermediate producers and
importers.

    (a) Foreign biointermediate producer. For purposes of this subpart, 
a foreign biointermediate producer is a person located outside the 
United States, the Commonwealth of Puerto Rico, the Virgin Islands, 
Guam, American Samoa, and the Commonwealth of the Northern Mariana 
Islands (collectively referred to in this section as ``the United 
States'') that has been approved by EPA to produce biointermediate for 
use in the production of renewable fuel by a RIN-generating renewable 
fuel producer.
    (b) Foreign biointermediate producer requirements. Any foreign 
biointermediate producer must meet all requirements that apply to 
biointermediate producers under this subpart as a condition of being 
approved as a foreign biointermediate producer under this subpart.
    (c) Foreign biointermediate producer commitments. Any foreign 
biointermediate producer must commit to the following provisions as a 
condition of being registered as a foreign biointermediate producer 
under this subpart:
    (1) Any EPA inspector or auditor must be given full, complete, and 
immediate access to conduct inspections and audits of the foreign 
biointermediate producer facility.
    (i) Inspections and audits may be either announced in advance by 
EPA, or unannounced.
    (ii) Access will be provided to any location where:
    (A) Biointermediate is produced.
    (B) Documents related to foreign biointermediate producer operations 
are kept.
    (C) Biointermediate is stored or transported between the foreign 
biointermediate producer and the renewable fuel producer, including 
storage tanks, vessels, and pipelines.
    (iii) EPA inspectors and auditors may be EPA employees or 
contractors to EPA.
    (iv) Any documents requested that are related to matters covered by 
inspections and audits must be provided to an EPA inspector or auditor 
on request.
    (v) Inspections and audits may include review and copying of any 
documents related to the following:
    (A) The volume of biointermediate produced or delivered to renewable 
fuel production facilities.
    (B) Transfers of title or custody to the biointermediate.
    (C) Work performed and reports prepared by independent third parties 
and by independent auditors under the requirements of this section, 
including work papers.
    (vi) Inspections and audits by EPA may include interviewing 
employees.
    (vii) Any employee of the foreign biointermediate producer must be 
made available for interview by the EPA inspector or auditor, on 
request, within a reasonable time period.
    (viii) English language translations of any documents must be 
provided to an EPA inspector or auditor, on request, within 10 business 
days.
    (ix) English language interpreters must be provided to accompany EPA 
inspectors and auditors, on request.
    (2) An agent for service of process located in the District of 
Columbia must be named, and service on this agent constitutes service on 
the foreign biointermediate producer or any employee of the foreign 
biointermediate producer for any action by EPA or otherwise by the 
United States related to the requirements of this subpart.

[[Page 263]]

    (3) The forum for any civil or criminal enforcement action related 
to the provisions of this section for violations of the Clean Air Act or 
regulations in this title promulgated thereunder must be governed by the 
Clean Air Act, including the EPA administrative forum where allowed 
under the Clean Air Act.
    (4) United States substantive and procedural laws apply to any civil 
or criminal enforcement action against the foreign biointermediate 
producer or any employee of the foreign biointermediate producer related 
to the provisions of this section.
    (5) Applying to be an approved foreign biointermediate producer 
under this section, or producing or exporting biointermediate under such 
approval, and all other actions to comply with the requirements of this 
subpart relating to such approval constitute actions or activities 
covered by and within the meaning of the provisions of 28 U.S.C. 
1605(a)(2), but solely with respect to actions instituted against the 
foreign biointermediate producer, its agents and employees in any court 
or other tribunal in the United States for conduct that violates the 
requirements applicable to the foreign biointermediate producer under 
this subpart, including conduct that violates the False Statements 
Accountability Act of 1996 (18 U.S.C. 1001) and section 113(c)(2) of the 
Clean Air Act (42 U.S.C. 7413).
    (6) The foreign biointermediate producer, or its agents or 
employees, will not seek to detain or to impose civil or criminal 
remedies against EPA inspectors or auditors for actions performed within 
the scope of EPA employment or contract related to the provisions of 
this section.
    (7) The commitment required by this paragraph (c) must be signed by 
the owner or president of the foreign biointermediate producer company.
    (8) In any case where the biointermediate produced at a foreign 
biointermediate production facility is stored or transported by another 
company between the production facility and the vessel that transports 
the biointermediate to the United States, the foreign biointermediate 
producer must obtain from each such other company a commitment that 
meets the requirements specified in paragraphs (c)(1) through (7) of 
this section, and these commitments must be included in the foreign 
biointermediate producer's application to be an approved foreign 
biointermediate producer under this subpart.
    (d) Sovereign immunity. By submitting an application to be an 
approved foreign biointermediate producer under this subpart, or by 
producing and exporting biointermediate fuel to the United States under 
such approval, the foreign biointermediate producer, and its agents and 
employees, without exception, become subject to the full operation of 
the administrative and judicial enforcement powers and provisions of the 
United States without limitation based on sovereign immunity, with 
respect to actions instituted against the foreign biointermediate 
producer, its agents and employees in any court or other tribunal in the 
United States for conduct that violates the requirements applicable to 
the foreign biointermediate producer under this subpart, including 
conduct that violates the False Statements Accountability Act of 1996 
(18 U.S.C. 1001) and section 113(c)(2) of the Clean Air Act (42 U.S.C. 
7413).
    (e) English language reports. Any document submitted to EPA by a 
foreign biointermediate producer must be in English or must include an 
English language translation.
    (f) Withdrawal or suspension of foreign biointermediate producer 
approval. EPA may withdraw or suspend a foreign biointermediate 
producer's approval where any of the following occur:
    (1) A foreign biointermediate producer fails to meet any requirement 
of this section.
    (2) A foreign government fails to allow EPA inspections or audits as 
provided in paragraph (c)(1) of this section.
    (3) A foreign biointermediate producer asserts a claim of, or a 
right to claim, sovereign immunity in an action to enforce the 
requirements in this subpart.
    (g) Additional requirements for applications, reports, and 
certificates. Any application for approval as a foreign biointermediate 
producer, any report, certification, or other submission required under 
this section shall be:

[[Page 264]]

    (1) Submitted in accordance with procedures specified by EPA, 
including use of any forms that may be specified by EPA.
    (2) Signed by the president or owner of the foreign biointermediate 
producer company, or by that person's immediate designee, and must 
contain the following declarations:
    (i) Certification.

    ``I hereby certify:
    That I have actual authority to sign on behalf of and to bind [NAME 
OF FOREIGN BIOINTERMEDIATE PRODUCER] with regard to all statements 
contained herein;
    That I am aware that the information contained herein is being 
Certified, or submitted to the United States Environmental Protection 
Agency, under the requirements of 40 CFR part 80, subpart M, and that 
the information is material for determining compliance under these 
regulations; and
    That I have read and understand the information being Certified or 
submitted, and this information is true, complete and correct to the 
best of my knowledge and belief after I have taken reasonable and 
appropriate steps to verify the accuracy thereof.''

    (ii) Affirmation.

    ``I affirm that I have read and understand the provisions of 40 CFR 
part 80, subpart M, including 40 CFR 80.1478 apply to [NAME OF FOREIGN 
BIOINTERMEDIATE PRODUCER]. Pursuant to Clean Air Act section 113(c) and 
18 U.S.C. 1001, the penalty for furnishing false, incomplete or 
misleading information in this certification or submission is a fine of 
up to $10,000 U.S., and/or imprisonment for up to five years.''

    (h) Requirements for biointermediate importers. Any biointermediate 
importer must meet all the following requirements:
    (1) For each biointermediate batch, any biointermediate importer 
must have an independent third party do all the following:
    (i) Determine the volume of biointermediate in the truck, railcar, 
vessel, or other shipping container.
    (ii) Determine the name and EPA-assigned registration number of the 
foreign biointermediate producer that produced the biointermediate.
    (iii) Determine the name and country of registration of the truck, 
railcar, vessel, or other shipping container used to transport the 
biointermediate to the United States.
    (iv) Determine the date and time the truck, railcar, vessel, or 
other shipping container arrives at the United States port of entry.
    (2) Any biointermediate importer must submit documentation of the 
information determined under paragraph (h)(1) of this section within 30 
days following the date any truck, railcar, vessel, or other shipping 
container transporting biointermediate arrives at the United States port 
of entry to all the following:
    (i) The foreign biointermediate producer.
    (ii) The renewable fuel producer.
    (3) The biointermediate importer and the independent third party 
must keep records of the audits and reports required under paragraphs 
(h)(1) and (2) of this section for five years from the date of creation.

[87 FR 39675, July 1, 2022, as amended at 88 FR 44592, July 12, 2023]



Sec.  80.1479  Alternative recordkeeping requirements for separated yard
waste, separated food waste, separated MSW, and biogenic 
waste oils/fats/greases.

    (a) Alternative recordkeeping. In lieu of complying with the 
recordkeeping requirements in Sec.  80.1454(j), a renewable fuel 
producer or biointermediate producer that produces renewable fuel or 
biointermediate from separated yard waste, separated food waste, 
separated MSW, or biogenic waste oils/fats/greases and uses a feedstock 
aggregator to supply these feedstocks may comply with the alternative 
recordkeeping requirements of this section.
    (b) Registration of the feedstock aggregator. The feedstock 
aggregator must register under 40 CFR 1090.805.
    (c) QAP participation. (1) The renewable fuel or biointermediate 
producer must have their RINs or biointermediate, as applicable, 
verified by an independent third-party auditor under an approved QAP 
that includes a description of how the independent third-party auditor 
will audit each feedstock aggregator.
    (2) The independent third-party auditor must conduct a site visit of 
each feedstock aggregator's establishment as specified in Sec.  
80.1471(f). Instead of verifying RINs with a site visit of the feedstock 
aggregator's establishment

[[Page 265]]

every 200 days as specified in Sec.  80.1471(f)(1)(ii), the independent 
third-party auditor may verify RINs with a site visit every 380 days.
    (d) PTDs. PTDs must accompany transfers of separated yard waste, 
separated food waste, separated MSW, and biogenic waste oils/fats/
greases from the point where the feedstock leaves the feedstock 
aggregator's establishment to the point the feedstock is delivered to 
the renewable fuel production facility, as specified in Sec.  
80.1453(f)(1)(i) through (v).
    (e) Recordkeeping. The feedstock aggregator must keep all applicable 
records for the collection of separated yard waste, separated food 
waste, separated MSW, and biogenic waste oils/fats/greases as specified 
in Sec.  80.1454(j).
    (f) Liability. The feedstock aggregator and renewable fuel producer 
are liable for violations as specified in Sec.  80.1461(e).

[88 FR 44592, July 12, 2023]

Subparts N-O [Reserved]



                Sec. Appendixes A-G to Part 80 [Reserved]

[[Page 267]]



                              FINDING AIDS




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

  A list of CFR titles, subtitles, chapters, subchapters and parts and 
an alphabetical list of agencies publishing in the CFR are included in 
the CFR Index and Finding Aids volume to the Code of Federal Regulations 
which is published separately and revised annually.

  Table of CFR Titles and Chapters
  Alphabetical List of Agencies Appearing in the CFR
  List of CFR Sections Affected

[[Page 269]]



                    Table of CFR Titles and Chapters




                      (Revised as of July 1, 2024)

                      Title 1--General Provisions

         I  Administrative Committee of the Federal Register 
                (Parts 1--49)
        II  Office of the Federal Register (Parts 50--299)
       III  Administrative Conference of the United States (Parts 
                300--399)
        IV  Miscellaneous Agencies (Parts 400--599)
        VI  National Capital Planning Commission (Parts 600--699)

                    Title 2--Grants and Agreements

            Subtitle A--Office of Management and Budget Guidance 
                for Grants and Agreements
         I  Office of Management and Budget Governmentwide 
                Guidance for Grants and Agreements (Parts 2--199)
        II  Office of Management and Budget Guidance (Parts 200--
                299)
            Subtitle B--Federal Agency Regulations for Grants and 
                Agreements
       III  Department of Health and Human Services (Parts 300--
                399)
        IV  Department of Agriculture (Parts 400--499)
        VI  Department of State (Parts 600--699)
       VII  Agency for International Development (Parts 700--799)
      VIII  Department of Veterans Affairs (Parts 800--899)
        IX  Department of Energy (Parts 900--999)
         X  Department of the Treasury (Parts 1000--1099)
        XI  Department of Defense (Parts 1100--1199)
       XII  Department of Transportation (Parts 1200--1299)
      XIII  Department of Commerce (Parts 1300--1399)
       XIV  Department of the Interior (Parts 1400--1499)
        XV  Environmental Protection Agency (Parts 1500--1599)
       XVI  U.S. International Development Finance Corporation 
                (Parts 1600--1699)
     XVIII  National Aeronautics and Space Administration (Parts 
                1800--1899)
        XX  United States Nuclear Regulatory Commission (Parts 
                2000--2099)
      XXII  Corporation for National and Community Service (Parts 
                2200--2299)
     XXIII  Social Security Administration (Parts 2300--2399)
      XXIV  Department of Housing and Urban Development (Parts 
                2400--2499)

[[Page 270]]

       XXV  National Science Foundation (Parts 2500--2599)
      XXVI  National Archives and Records Administration (Parts 
                2600--2699)
     XXVII  Small Business Administration (Parts 2700--2799)
    XXVIII  Department of Justice (Parts 2800--2899)
      XXIX  Department of Labor (Parts 2900--2999)
       XXX  Department of Homeland Security (Parts 3000--3099)
      XXXI  Institute of Museum and Library Services (Parts 3100--
                3199)
     XXXII  National Endowment for the Arts (Parts 3200--3299)
    XXXIII  National Endowment for the Humanities (Parts 3300--
                3399)
     XXXIV  Department of Education (Parts 3400--3499)
      XXXV  Export-Import Bank of the United States (Parts 3500--
                3599)
     XXXVI  Office of National Drug Control Policy, Executive 
                Office of the President (Parts 3600--3699)
    XXXVII  Peace Corps (Parts 3700--3799)
     LVIII  Election Assistance Commission (Parts 5800--5899)
       LIX  Gulf Coast Ecosystem Restoration Council (Parts 5900--
                5999)
        LX  Federal Communications Commission (Parts 6000--6099)

                        Title 3--The President

         I  Executive Office of the President (Parts 100--199)

                           Title 4--Accounts

         I  Government Accountability Office (Parts 1--199)

                   Title 5--Administrative Personnel

         I  Office of Personnel Management (Parts 1--1199)
        II  Merit Systems Protection Board (Parts 1200--1299)
       III  Office of Management and Budget (Parts 1300--1399)
        IV  Office of Personnel Management and Office of the 
                Director of National Intelligence (Parts 1400--
                1499)
         V  The International Organizations Employees Loyalty 
                Board (Parts 1500--1599)
        VI  Federal Retirement Thrift Investment Board (Parts 
                1600--1699)
      VIII  Office of Special Counsel (Parts 1800--1899)
        IX  Appalachian Regional Commission (Parts 1900--1999)
        XI  Armed Forces Retirement Home (Parts 2100--2199)
       XIV  Federal Labor Relations Authority, General Counsel of 
                the Federal Labor Relations Authority and Federal 
                Service Impasses Panel (Parts 2400--2499)
       XVI  Office of Government Ethics (Parts 2600--2699)
       XXI  Department of the Treasury (Parts 3100--3199)
      XXII  Federal Deposit Insurance Corporation (Parts 3200--
                3299)
     XXIII  Department of Energy (Parts 3300--3399)

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      XXIV  Federal Energy Regulatory Commission (Parts 3400--
                3499)
       XXV  Department of the Interior (Parts 3500--3599)
      XXVI  Department of Defense (Parts 3600--3699)
    XXVIII  Department of Justice (Parts 3800--3899)
      XXIX  Federal Communications Commission (Parts 3900--3999)
       XXX  Farm Credit System Insurance Corporation (Parts 4000--
                4099)
      XXXI  Farm Credit Administration (Parts 4100--4199)
    XXXIII  U.S. International Development Finance Corporation 
                (Parts 4300--4399)
     XXXIV  Securities and Exchange Commission (Parts 4400--4499)
      XXXV  Office of Personnel Management (Parts 4500--4599)
     XXXVI  Department of Homeland Security (Parts 4600--4699)
    XXXVII  Federal Election Commission (Parts 4700--4799)
        XL  Interstate Commerce Commission (Parts 5000--5099)
       XLI  Commodity Futures Trading Commission (Parts 5100--
                5199)
      XLII  Department of Labor (Parts 5200--5299)
     XLIII  National Science Foundation (Parts 5300--5399)
       XLV  Department of Health and Human Services (Parts 5500--
                5599)
      XLVI  Postal Rate Commission (Parts 5600--5699)
     XLVII  Federal Trade Commission (Parts 5700--5799)
    XLVIII  Nuclear Regulatory Commission (Parts 5800--5899)
      XLIX  Federal Labor Relations Authority (Parts 5900--5999)
         L  Department of Transportation (Parts 6000--6099)
       LII  Export-Import Bank of the United States (Parts 6200--
                6299)
      LIII  Department of Education (Parts 6300--6399)
       LIV  Environmental Protection Agency (Parts 6400--6499)
        LV  National Endowment for the Arts (Parts 6500--6599)
       LVI  National Endowment for the Humanities (Parts 6600--
                6699)
      LVII  General Services Administration (Parts 6700--6799)
     LVIII  Board of Governors of the Federal Reserve System 
                (Parts 6800--6899)
       LIX  National Aeronautics and Space Administration (Parts 
                6900--6999)
        LX  United States Postal Service (Parts 7000--7099)
       LXI  National Labor Relations Board (Parts 7100--7199)
      LXII  Equal Employment Opportunity Commission (Parts 7200--
                7299)
     LXIII  Inter-American Foundation (Parts 7300--7399)
      LXIV  Merit Systems Protection Board (Parts 7400--7499)
       LXV  Department of Housing and Urban Development (Parts 
                7500--7599)
      LXVI  National Archives and Records Administration (Parts 
                7600--7699)
     LXVII  Institute of Museum and Library Services (Parts 7700--
                7799)
    LXVIII  Commission on Civil Rights (Parts 7800--7899)
      LXIX  Tennessee Valley Authority (Parts 7900--7999)

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       LXX  Court Services and Offender Supervision Agency for the 
                District of Columbia (Parts 8000--8099)
      LXXI  Consumer Product Safety Commission (Parts 8100--8199)
    LXXIII  Department of Agriculture (Parts 8300--8399)
     LXXIV  Federal Mine Safety and Health Review Commission 
                (Parts 8400--8499)
     LXXVI  Federal Retirement Thrift Investment Board (Parts 
                8600--8699)
    LXXVII  Office of Management and Budget (Parts 8700--8799)
      LXXX  Federal Housing Finance Agency (Parts 9000--9099)
   LXXXIII  Special Inspector General for Afghanistan 
                Reconstruction (Parts 9300--9399)
    LXXXIV  Bureau of Consumer Financial Protection (Parts 9400--
                9499)
    LXXXVI  National Credit Union Administration (Parts 9600--
                9699)
     XCVII  Department of Homeland Security Human Resources 
                Management System (Department of Homeland 
                Security--Office of Personnel Management) (Parts 
                9700--9799)
    XCVIII  Council of the Inspectors General on Integrity and 
                Efficiency (Parts 9800--9899)
      XCIX  Military Compensation and Retirement Modernization 
                Commission (Parts 9900--9999)
         C  National Council on Disability (Parts 10000--10049)
        CI  National Mediation Board (Parts 10100--10199)
       CII  U.S. Office of Special Counsel (Parts 10200--10299)
      CIII  U.S. Office of Federal Mediation and Conciliation 
                Service (Parts 10300--10399)
       CIV  Office of the Intellectual Property Enforcement 
                Coordinator (Part 10400--10499)

                      Title 6--Domestic Security

         I  Department of Homeland Security, Office of the 
                Secretary (Parts 1--199)
         X  Privacy and Civil Liberties Oversight Board (Parts 
                1000--1099)

                         Title 7--Agriculture

            Subtitle A--Office of the Secretary of Agriculture 
                (Parts 0--26)
            Subtitle B--Regulations of the Department of 
                Agriculture
         I  Agricultural Marketing Service (Standards, 
                Inspections, Marketing Practices), Department of 
                Agriculture (Parts 27--209)
        II  Food and Nutrition Service, Department of Agriculture 
                (Parts 210--299)
       III  Animal and Plant Health Inspection Service, Department 
                of Agriculture (Parts 300--399)
        IV  Federal Crop Insurance Corporation, Department of 
                Agriculture (Parts 400--499)
         V  Agricultural Research Service, Department of 
                Agriculture (Parts 500--599)

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        VI  Natural Resources Conservation Service, Department of 
                Agriculture (Parts 600--699)
       VII  Farm Service Agency, Department of Agriculture (Parts 
                700--799)
      VIII  Agricultural Marketing Service (Federal Grain 
                Inspection Service, Fair Trade Practices Program), 
                Department of Agriculture (Parts 800--899)
        IX  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Fruits, Vegetables, Nuts), Department 
                of Agriculture (Parts 900--999)
         X  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Milk), Department of Agriculture 
                (Parts 1000--1199)
        XI  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Miscellaneous Commodities), Department 
                of Agriculture (Parts 1200--1299)
       XIV  Commodity Credit Corporation, Department of 
                Agriculture (Parts 1400--1499)
        XV  Foreign Agricultural Service, Department of 
                Agriculture (Parts 1500--1599)
       XVI  [Reserved]
      XVII  Rural Utilities Service, Department of Agriculture 
                (Parts 1700--1799)
     XVIII  Rural Housing Service, Rural Business-Cooperative 
                Service, Rural Utilities Service, and Farm Service 
                Agency, Department of Agriculture (Parts 1800--
                2099)
        XX  [Reserved]
       XXV  Office of Advocacy and Outreach, Department of 
                Agriculture (Parts 2500--2599)
      XXVI  Office of Inspector General, Department of Agriculture 
                (Parts 2600--2699)
     XXVII  Office of Information Resources Management, Department 
                of Agriculture (Parts 2700--2799)
    XXVIII  Office of Operations, Department of Agriculture (Parts 
                2800--2899)
      XXIX  Office of Energy Policy and New Uses, Department of 
                Agriculture (Parts 2900--2999)
       XXX  Office of the Chief Financial Officer, Department of 
                Agriculture (Parts 3000--3099)
      XXXI  Office of Environmental Quality, Department of 
                Agriculture (Parts 3100--3199)
     XXXII  Office of Procurement and Property Management, 
                Department of Agriculture (Parts 3200--3299)
    XXXIII  Office of Transportation, Department of Agriculture 
                (Parts 3300--3399)
     XXXIV  National Institute of Food and Agriculture (Parts 
                3400--3499)
      XXXV  Rural Housing Service, Department of Agriculture 
                (Parts 3500--3599)
     XXXVI  National Agricultural Statistics Service, Department 
                of Agriculture (Parts 3600--3699)

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    XXXVII  Economic Research Service, Department of Agriculture 
                (Parts 3700--3799)
   XXXVIII  World Agricultural Outlook Board, Department of 
                Agriculture (Parts 3800--3899)
       XLI  [Reserved]
      XLII  Rural Business-Cooperative Service, Department of 
                Agriculture (Parts 4200--4299)
         L  Rural Business-Cooperative Service, Rural Housing 
                Service, and Rural Utilities Service, Department 
                of Agriculture (Parts 5000--5099)

                    Title 8--Aliens and Nationality

         I  Department of Homeland Security (Parts 1--499)
         V  Executive Office for Immigration Review, Department of 
                Justice (Parts 1000--1399)

                 Title 9--Animals and Animal Products

         I  Animal and Plant Health Inspection Service, Department 
                of Agriculture (Parts 1--199)
        II  Agricultural Marketing Service (Fair Trade Practices 
                Program), Department of Agriculture (Parts 200--
                299)
       III  Food Safety and Inspection Service, Department of 
                Agriculture (Parts 300--599)

                           Title 10--Energy

         I  Nuclear Regulatory Commission (Parts 0--199)
        II  Department of Energy (Parts 200--699)
       III  Department of Energy (Parts 700--999)
         X  Department of Energy (General Provisions) (Parts 
                1000--1099)
      XIII  Nuclear Waste Technical Review Board (Parts 1300--
                1399)
      XVII  Defense Nuclear Facilities Safety Board (Parts 1700--
                1799)
     XVIII  Northeast Interstate Low-Level Radioactive Waste 
                Commission (Parts 1800--1899)

                      Title 11--Federal Elections

         I  Federal Election Commission (Parts 1--9099)
        II  Election Assistance Commission (Parts 9400--9499)

                      Title 12--Banks and Banking

         I  Comptroller of the Currency, Department of the 
                Treasury (Parts 1--199)
        II  Federal Reserve System (Parts 200--299)
       III  Federal Deposit Insurance Corporation (Parts 300--399)

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        IV  Export-Import Bank of the United States (Parts 400--
                499)
         V  (Parts 500--599) [Reserved]
        VI  Farm Credit Administration (Parts 600--699)
       VII  National Credit Union Administration (Parts 700--799)
      VIII  Federal Financing Bank (Parts 800--899)
        IX  (Parts 900--999)[Reserved]
         X  Consumer Financial Protection Bureau (Parts 1000--
                1099)
        XI  Federal Financial Institutions Examination Council 
                (Parts 1100--1199)
       XII  Federal Housing Finance Agency (Parts 1200--1299)
      XIII  Financial Stability Oversight Council (Parts 1300--
                1399)
       XIV  Farm Credit System Insurance Corporation (Parts 1400--
                1499)
        XV  Department of the Treasury (Parts 1500--1599)
       XVI  Office of Financial Research, Department of the 
                Treasury (Parts 1600--1699)
      XVII  Office of Federal Housing Enterprise Oversight, 
                Department of Housing and Urban Development (Parts 
                1700--1799)
     XVIII  Community Development Financial Institutions Fund, 
                Department of the Treasury (Parts 1800--1899)

               Title 13--Business Credit and Assistance

         I  Small Business Administration (Parts 1--199)
       III  Economic Development Administration, Department of 
                Commerce (Parts 300--399)
        IV  Emergency Steel Guarantee Loan Board (Parts 400--499)
         V  Emergency Oil and Gas Guaranteed Loan Board (Parts 
                500--599)

                    Title 14--Aeronautics and Space

         I  Federal Aviation Administration, Department of 
                Transportation (Parts 1--199)
        II  Office of the Secretary, Department of Transportation 
                (Aviation Proceedings) (Parts 200--399)
       III  Commercial Space Transportation, Federal Aviation 
                Administration, Department of Transportation 
                (Parts 400--1199)
         V  National Aeronautics and Space Administration (Parts 
                1200--1299)
        VI  Air Transportation System Stabilization (Parts 1300--
                1399)

                 Title 15--Commerce and Foreign Trade

            Subtitle A--Office of the Secretary of Commerce (Parts 
                0--29)
            Subtitle B--Regulations Relating to Commerce and 
                Foreign Trade
         I  Bureau of the Census, Department of Commerce (Parts 
                30--199)

[[Page 276]]

        II  National Institute of Standards and Technology, 
                Department of Commerce (Parts 200--299)
       III  International Trade Administration, Department of 
                Commerce (Parts 300--399)
        IV  Foreign-Trade Zones Board, Department of Commerce 
                (Parts 400--499)
       VII  Bureau of Industry and Security, Department of 
                Commerce (Parts 700--799)
      VIII  Bureau of Economic Analysis, Department of Commerce 
                (Parts 800--899)
        IX  National Oceanic and Atmospheric Administration, 
                Department of Commerce (Parts 900--999)
        XI  National Technical Information Service, Department of 
                Commerce (Parts 1100--1199)
      XIII  East-West Foreign Trade Board (Parts 1300--1399)
       XIV  Minority Business Development Agency (Parts 1400--
                1499)
        XV  Office of the Under-Secretary for Economic Affairs, 
                Department of Commerce (Parts 1500--1599)
            Subtitle C--Regulations Relating to Foreign Trade 
                Agreements
        XX  Office of the United States Trade Representative 
                (Parts 2000--2099)
            Subtitle D--Regulations Relating to Telecommunications 
                and Information
     XXIII  National Telecommunications and Information 
                Administration, Department of Commerce (Parts 
                2300--2399) [Reserved]

                    Title 16--Commercial Practices

         I  Federal Trade Commission (Parts 0--999)
        II  Consumer Product Safety Commission (Parts 1000--1799)

             Title 17--Commodity and Securities Exchanges

         I  Commodity Futures Trading Commission (Parts 1--199)
        II  Securities and Exchange Commission (Parts 200--399)
        IV  Department of the Treasury (Parts 400--499)

          Title 18--Conservation of Power and Water Resources

         I  Federal Energy Regulatory Commission, Department of 
                Energy (Parts 1--399)
       III  Delaware River Basin Commission (Parts 400--499)
        VI  Water Resources Council (Parts 700--799)
      VIII  Susquehanna River Basin Commission (Parts 800--899)
      XIII  Tennessee Valley Authority (Parts 1300--1399)

[[Page 277]]

                       Title 19--Customs Duties

         I  U.S. Customs and Border Protection, Department of 
                Homeland Security; Department of the Treasury 
                (Parts 0--199)
        II  United States International Trade Commission (Parts 
                200--299)
       III  International Trade Administration, Department of 
                Commerce (Parts 300--399)
        IV  U.S. Immigration and Customs Enforcement, Department 
                of Homeland Security (Parts 400--599) [Reserved]

                     Title 20--Employees' Benefits

         I  Office of Workers' Compensation Programs, Department 
                of Labor (Parts 1--199)
        II  Railroad Retirement Board (Parts 200--399)
       III  Social Security Administration (Parts 400--499)
        IV  Employees' Compensation Appeals Board, Department of 
                Labor (Parts 500--599)
         V  Employment and Training Administration, Department of 
                Labor (Parts 600--699)
        VI  Office of Workers' Compensation Programs, Department 
                of Labor (Parts 700--799)
       VII  Benefits Review Board, Department of Labor (Parts 
                800--899)
      VIII  Joint Board for the Enrollment of Actuaries (Parts 
                900--999)
        IX  Office of the Assistant Secretary for Veterans' 
                Employment and Training Service, Department of 
                Labor (Parts 1000--1099)

                       Title 21--Food and Drugs

         I  Food and Drug Administration, Department of Health and 
                Human Services (Parts 1--1299)
        II  Drug Enforcement Administration, Department of Justice 
                (Parts 1300--1399)
       III  Office of National Drug Control Policy (Parts 1400--
                1499)

                      Title 22--Foreign Relations

         I  Department of State (Parts 1--199)
        II  Agency for International Development (Parts 200--299)
       III  Peace Corps (Parts 300--399)
        IV  International Joint Commission, United States and 
                Canada (Parts 400--499)
         V  United States Agency for Global Media (Parts 500--599)
       VII  U.S. International Development Finance Corporation 
                (Parts 700--799)
        IX  Foreign Service Grievance Board (Parts 900--999)
         X  Inter-American Foundation (Parts 1000--1099)
        XI  International Boundary and Water Commission, United 
                States and Mexico, United States Section (Parts 
                1100--1199)

[[Page 278]]

       XII  United States International Development Cooperation 
                Agency (Parts 1200--1299)
      XIII  Millennium Challenge Corporation (Parts 1300--1399)
       XIV  Foreign Service Labor Relations Board; Federal Labor 
                Relations Authority; General Counsel of the 
                Federal Labor Relations Authority; and the Foreign 
                Service Impasse Disputes Panel (Parts 1400--1499)
        XV  African Development Foundation (Parts 1500--1599)
       XVI  Japan-United States Friendship Commission (Parts 
                1600--1699)
      XVII  United States Institute of Peace (Parts 1700--1799)

                          Title 23--Highways

         I  Federal Highway Administration, Department of 
                Transportation (Parts 1--999)
        II  National Highway Traffic Safety Administration and 
                Federal Highway Administration, Department of 
                Transportation (Parts 1200--1299)
       III  National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 1300--1399)

                Title 24--Housing and Urban Development

            Subtitle A--Office of the Secretary, Department of 
                Housing and Urban Development (Parts 0--99)
            Subtitle B--Regulations Relating to Housing and Urban 
                Development
         I  Office of Assistant Secretary for Equal Opportunity, 
                Department of Housing and Urban Development (Parts 
                100--199)
        II  Office of Assistant Secretary for Housing-Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Parts 200--299)
       III  Government National Mortgage Association, Department 
                of Housing and Urban Development (Parts 300--399)
        IV  Office of Housing and Office of Multifamily Housing 
                Assistance Restructuring, Department of Housing 
                and Urban Development (Parts 400--499)
         V  Office of Assistant Secretary for Community Planning 
                and Development, Department of Housing and Urban 
                Development (Parts 500--599)
        VI  Office of Assistant Secretary for Community Planning 
                and Development, Department of Housing and Urban 
                Development (Parts 600--699) [Reserved]
       VII  Office of the Secretary, Department of Housing and 
                Urban Development (Housing Assistance Programs and 
                Public and Indian Housing Programs) (Parts 700--
                799)

[[Page 279]]

      VIII  Office of the Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Section 8 Housing Assistance 
                Programs, Section 202 Direct Loan Program, Section 
                202 Supportive Housing for the Elderly Program and 
                Section 811 Supportive Housing for Persons With 
                Disabilities Program) (Parts 800--899)
        IX  Office of Assistant Secretary for Public and Indian 
                Housing, Department of Housing and Urban 
                Development (Parts 900--1699)
         X  Office of Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Interstate Land Sales 
                Registration Program) (Parts 1700--1799) 
                [Reserved]
       XII  Office of Inspector General, Department of Housing and 
                Urban Development (Parts 2000--2099)
        XV  Emergency Mortgage Insurance and Loan Programs, 
                Department of Housing and Urban Development (Parts 
                2700--2799) [Reserved]
        XX  Office of Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Parts 3200--3899)
      XXIV  Board of Directors of the HOPE for Homeowners Program 
                (Parts 4000--4099) [Reserved]
       XXV  Neighborhood Reinvestment Corporation (Parts 4100--
                4199)

                           Title 25--Indians

         I  Bureau of Indian Affairs, Department of the Interior 
                (Parts 1--299)
        II  Indian Arts and Crafts Board, Department of the 
                Interior (Parts 300--399)
       III  National Indian Gaming Commission, Department of the 
                Interior (Parts 500--599)
        IV  Office of Navajo and Hopi Indian Relocation (Parts 
                700--899)
         V  Bureau of Indian Affairs, Department of the Interior, 
                and Indian Health Service, Department of Health 
                and Human Services (Part 900--999)
        VI  Office of the Assistant Secretary, Indian Affairs, 
                Department of the Interior (Parts 1000--1199)
       VII  Office of the Special Trustee for American Indians, 
                Department of the Interior (Parts 1200--1299)

                      Title 26--Internal Revenue

         I  Internal Revenue Service, Department of the Treasury 
                (Parts 1--End)

           Title 27--Alcohol, Tobacco Products and Firearms

         I  Alcohol and Tobacco Tax and Trade Bureau, Department 
                of the Treasury (Parts 1--399)

[[Page 280]]

        II  Bureau of Alcohol, Tobacco, Firearms, and Explosives, 
                Department of Justice (Parts 400--799)

                   Title 28--Judicial Administration

         I  Department of Justice (Parts 0--299)
       III  Federal Prison Industries, Inc., Department of Justice 
                (Parts 300--399)
         V  Bureau of Prisons, Department of Justice (Parts 500--
                599)
        VI  Offices of Independent Counsel, Department of Justice 
                (Parts 600--699)
       VII  Office of Independent Counsel (Parts 700--799)
      VIII  Court Services and Offender Supervision Agency for the 
                District of Columbia (Parts 800--899)
        IX  National Crime Prevention and Privacy Compact Council 
                (Parts 900--999)
        XI  Department of Justice and Department of State (Parts 
                1100--1199)

                            Title 29--Labor

            Subtitle A--Office of the Secretary of Labor (Parts 
                0--99)
            Subtitle B--Regulations Relating to Labor
         I  National Labor Relations Board (Parts 100--199)
        II  Office of Labor-Management Standards, Department of 
                Labor (Parts 200--299)
       III  National Railroad Adjustment Board (Parts 300--399)
        IV  Office of Labor-Management Standards, Department of 
                Labor (Parts 400--499)
         V  Wage and Hour Division, Department of Labor (Parts 
                500--899)
        IX  Construction Industry Collective Bargaining Commission 
                (Parts 900--999)
         X  National Mediation Board (Parts 1200--1299)
       XII  Federal Mediation and Conciliation Service (Parts 
                1400--1499)
       XIV  Equal Employment Opportunity Commission (Parts 1600--
                1699)
      XVII  Occupational Safety and Health Administration, 
                Department of Labor (Parts 1900--1999)
        XX  Occupational Safety and Health Review Commission 
                (Parts 2200--2499)
       XXV  Employee Benefits Security Administration, Department 
                of Labor (Parts 2500--2599)
     XXVII  Federal Mine Safety and Health Review Commission 
                (Parts 2700--2799)
        XL  Pension Benefit Guaranty Corporation (Parts 4000--
                4999)

[[Page 281]]

                      Title 30--Mineral Resources

         I  Mine Safety and Health Administration, Department of 
                Labor (Parts 1--199)
        II  Bureau of Safety and Environmental Enforcement, 
                Department of the Interior (Parts 200--299)
        IV  Geological Survey, Department of the Interior (Parts 
                400--499)
         V  Bureau of Ocean Energy Management, Department of the 
                Interior (Parts 500--599)
       VII  Office of Surface Mining Reclamation and Enforcement, 
                Department of the Interior (Parts 700--999)
       XII  Office of Natural Resources Revenue, Department of the 
                Interior (Parts 1200--1299)

                 Title 31--Money and Finance: Treasury

            Subtitle A--Office of the Secretary of the Treasury 
                (Parts 0--50)
            Subtitle B--Regulations Relating to Money and Finance
         I  Monetary Offices, Department of the Treasury (Parts 
                51--199)
        II  Fiscal Service, Department of the Treasury (Parts 
                200--399)
        IV  Secret Service, Department of the Treasury (Parts 
                400--499)
         V  Office of Foreign Assets Control, Department of the 
                Treasury (Parts 500--599)
        VI  Bureau of Engraving and Printing, Department of the 
                Treasury (Parts 600--699)
       VII  Federal Law Enforcement Training Center, Department of 
                the Treasury (Parts 700--799)
      VIII  Office of Investment Security, Department of the 
                Treasury (Parts 800--899)
        IX  Federal Claims Collection Standards (Department of the 
                Treasury--Department of Justice) (Parts 900--999)
         X  Financial Crimes Enforcement Network, Department of 
                the Treasury (Parts 1000--1099)

                      Title 32--National Defense

            Subtitle A--Department of Defense
         I  Office of the Secretary of Defense (Parts 1--399)
         V  Department of the Army (Parts 400--699)
        VI  Department of the Navy (Parts 700--799)
       VII  Department of the Air Force (Parts 800--1099)
            Subtitle B--Other Regulations Relating to National 
                Defense
       XII  Department of Defense, Defense Logistics Agency (Parts 
                1200--1299)
       XVI  Selective Service System (Parts 1600--1699)
      XVII  Office of the Director of National Intelligence (Parts 
                1700--1799)
     XVIII  National Counterintelligence Center (Parts 1800--1899)
       XIX  Central Intelligence Agency (Parts 1900--1999)

[[Page 282]]

        XX  Information Security Oversight Office, National 
                Archives and Records Administration (Parts 2000--
                2099)
       XXI  National Security Council (Parts 2100--2199)
      XXIV  Office of Science and Technology Policy (Parts 2400--
                2499)
     XXVII  Office for Micronesian Status Negotiations (Parts 
                2700--2799)
    XXVIII  Office of the Vice President of the United States 
                (Parts 2800--2899)

               Title 33--Navigation and Navigable Waters

         I  Coast Guard, Department of Homeland Security (Parts 
                1--199)
        II  Corps of Engineers, Department of the Army, Department 
                of Defense (Parts 200--399)
        IV  Great Lakes St. Lawrence Seaway Development 
                Corporation, Department of Transportation (Parts 
                400--499)

                          Title 34--Education

            Subtitle A--Office of the Secretary, Department of 
                Education (Parts 1--99)
            Subtitle B--Regulations of the Offices of the 
                Department of Education
         I  Office for Civil Rights, Department of Education 
                (Parts 100--199)
        II  Office of Elementary and Secondary Education, 
                Department of Education (Parts 200--299)
       III  Office of Special Education and Rehabilitative 
                Services, Department of Education (Parts 300--399)
        IV  Office of Career, Technical, and Adult Education, 
                Department of Education (Parts 400--499)
         V  Office of Bilingual Education and Minority [Reserved]
        VI  Office of Postsecondary Education, Department of 
                Education (Parts 600--699)
       VII  Office of Educational Research and Improvement, 
                Department of Education (Parts 700--799) 
                [Reserved]
            Subtitle C--Regulations Relating to Education
        XI  [Reserved]
       XII  National Council on Disability (Parts 1200--1299)

                          Title 35 [Reserved]

             Title 36--Parks, Forests, and Public Property

         I  National Park Service, Department of the Interior 
                (Parts 1--199)
        II  Forest Service, Department of Agriculture (Parts 200--
                299)
       III  Corps of Engineers, Department of the Army (Parts 
                300--399)
        IV  American Battle Monuments Commission (Parts 400--499)
         V  Smithsonian Institution (Parts 500--599)
        VI  [Reserved]

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       VII  Library of Congress (Parts 700--799)
      VIII  Advisory Council on Historic Preservation (Parts 800--
                899)
        IX  Pennsylvania Avenue Development Corporation (Parts 
                900--999)
         X  Presidio Trust (Parts 1000--1099)
        XI  Architectural and Transportation Barriers Compliance 
                Board (Parts 1100--1199)
       XII  National Archives and Records Administration (Parts 
                1200--1299)
        XV  Oklahoma City National Memorial Trust (Parts 1500--
                1599)
       XVI  Morris K. Udall Scholarship and Excellence in National 
                Environmental Policy Foundation (Parts 1600--1699)

             Title 37--Patents, Trademarks, and Copyrights

         I  United States Patent and Trademark Office, Department 
                of Commerce (Parts 1--199)
        II  U.S. Copyright Office, Library of Congress (Parts 
                200--299)
       III  Copyright Royalty Board, Library of Congress (Parts 
                300--399)
        IV  National Institute of Standards and Technology, 
                Department of Commerce (Parts 400--599)

           Title 38--Pensions, Bonuses, and Veterans' Relief

         I  Department of Veterans Affairs (Parts 0--199)
        II  Armed Forces Retirement Home (Parts 200--299)

                       Title 39--Postal Service

         I  United States Postal Service (Parts 1--999)
       III  Postal Regulatory Commission (Parts 3000--3099)

                  Title 40--Protection of Environment

         I  Environmental Protection Agency (Parts 1--1099)
        IV  Environmental Protection Agency and Department of 
                Justice (Parts 1400--1499)
         V  Council on Environmental Quality (Parts 1500--1599)
        VI  Chemical Safety and Hazard Investigation Board (Parts 
                1600--1699)
       VII  Environmental Protection Agency and Department of 
                Defense; Uniform National Discharge Standards for 
                Vessels of the Armed Forces (Parts 1700--1799)
      VIII  Gulf Coast Ecosystem Restoration Council (Parts 1800--
                1899)
        IX  Federal Permitting Improvement Steering Council (Part 
                1900)

          Title 41--Public Contracts and Property Management

            Subtitle A--Federal Procurement Regulations System 
                [Note]

[[Page 284]]

            Subtitle B--Other Provisions Relating to Public 
                Contracts
        50  Public Contracts, Department of Labor (Parts 50-1--50-
                999)
        51  Committee for Purchase From People Who Are Blind or 
                Severely Disabled (Parts 51-1--51-99)
        60  Office of Federal Contract Compliance Programs, Equal 
                Employment Opportunity, Department of Labor (Parts 
                60-1--60-999)
        61  Office of the Assistant Secretary for Veterans' 
                Employment and Training Service, Department of 
                Labor (Parts 61-1--61-999)
   62--100  [Reserved]
            Subtitle C--Federal Property Management Regulations 
                System
       101  Federal Property Management Regulations (Parts 101-1--
                101-99)
       102  Federal Management Regulation (Parts 102-1--102-299)
  103--104  [Reserved]
       105  General Services Administration (Parts 105-1--105-999)
       109  Department of Energy Property Management Regulations 
                (Parts 109-1--109-99)
       114  Department of the Interior (Parts 114-1--114-99)
       115  Environmental Protection Agency (Parts 115-1--115-99)
       128  Department of Justice (Parts 128-1--128-99)
  129--200  [Reserved]
            Subtitle D--Federal Acquisition Supply Chain Security
       201  Federal Acquisition Security Council (Parts 201-1--
                201-99)
            Subtitle E [Reserved]
            Subtitle F--Federal Travel Regulation System
       300  General (Parts 300-1--300-99)
       301  Temporary Duty (TDY) Travel Allowances (Parts 301-1--
                301-99)
       302  Relocation Allowances (Parts 302-1--302-99)
       303  Payment of Expenses Connected with the Death of 
                Certain Employees (Part 303-1--303-99)
       304  Payment of Travel Expenses from a Non-Federal Source 
                (Parts 304-1--304-99)

                        Title 42--Public Health

         I  Public Health Service, Department of Health and Human 
                Services (Parts 1--199)
   II--III  [Reserved]
        IV  Centers for Medicare & Medicaid Services, Department 
                of Health and Human Services (Parts 400--699)
         V  Office of Inspector General-Health Care, Department of 
                Health and Human Services (Parts 1000--1099)

                   Title 43--Public Lands: Interior

            Subtitle A--Office of the Secretary of the Interior 
                (Parts 1--199)

[[Page 285]]

            Subtitle B--Regulations Relating to Public Lands
         I  Bureau of Reclamation, Department of the Interior 
                (Parts 400--999)
        II  Bureau of Land Management, Department of the Interior 
                (Parts 1000--9999)
       III  Utah Reclamation Mitigation and Conservation 
                Commission (Parts 10000--10099)

             Title 44--Emergency Management and Assistance

         I  Federal Emergency Management Agency, Department of 
                Homeland Security (Parts 0--399)
        IV  Department of Commerce and Department of 
                Transportation (Parts 400--499)

                       Title 45--Public Welfare

            Subtitle A--Department of Health and Human Services 
                (Parts 1--199)
            Subtitle B--Regulations Relating to Public Welfare
        II  Office of Family Assistance (Assistance Programs), 
                Administration for Children and Families, 
                Department of Health and Human Services (Parts 
                200--299)
       III  Office of Child Support Services, Administration of 
                Families and Services, Department of Health and 
                Human Services (Parts 300--399)
        IV  Office of Refugee Resettlement, Administration for 
                Children and Families, Department of Health and 
                Human Services (Parts 400--499)
         V  Foreign Claims Settlement Commission of the United 
                States, Department of Justice (Parts 500--599)
        VI  National Science Foundation (Parts 600--699)
       VII  Commission on Civil Rights (Parts 700--799)
      VIII  Office of Personnel Management (Parts 800--899)
        IX  Denali Commission (Parts 900--999)
         X  Office of Community Services, Administration for 
                Children and Families, Department of Health and 
                Human Services (Parts 1000--1099)
        XI  National Foundation on the Arts and the Humanities 
                (Parts 1100--1199)
       XII  Corporation for National and Community Service (Parts 
                1200--1299)
      XIII  Administration for Children and Families, Department 
                of Health and Human Services (Parts 1300--1399)
       XVI  Legal Services Corporation (Parts 1600--1699)
      XVII  National Commission on Libraries and Information 
                Science (Parts 1700--1799)
     XVIII  Harry S. Truman Scholarship Foundation (Parts 1800--
                1899)
       XXI  Commission of Fine Arts (Parts 2100--2199)

[[Page 286]]

     XXIII  Arctic Research Commission (Parts 2300--2399)
      XXIV  James Madison Memorial Fellowship Foundation (Parts 
                2400--2499)
       XXV  Corporation for National and Community Service (Parts 
                2500--2599)

                          Title 46--Shipping

         I  Coast Guard, Department of Homeland Security (Parts 
                1--199)
        II  Maritime Administration, Department of Transportation 
                (Parts 200--399)
       III  Coast Guard (Great Lakes Pilotage), Department of 
                Homeland Security (Parts 400--499)
        IV  Federal Maritime Commission (Parts 500--599)

                      Title 47--Telecommunication

         I  Federal Communications Commission (Parts 0--199)
        II  Office of Science and Technology Policy and National 
                Security Council (Parts 200--299)
       III  National Telecommunications and Information 
                Administration, Department of Commerce (Parts 
                300--399)
        IV  National Telecommunications and Information 
                Administration, Department of Commerce, and 
                National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 400--499)
         V  The First Responder Network Authority (Parts 500--599)

           Title 48--Federal Acquisition Regulations System

         1  Federal Acquisition Regulation (Parts 1--99)
         2  Defense Acquisition Regulations System, Department of 
                Defense (Parts 200--299)
         3  Health and Human Services (Parts 300--399)
         4  Department of Agriculture (Parts 400--499)
         5  General Services Administration (Parts 500--599)
         6  Department of State (Parts 600--699)
         7  Agency for International Development (Parts 700--799)
         8  Department of Veterans Affairs (Parts 800--899)
         9  Department of Energy (Parts 900--999)
        10  Department of the Treasury (Parts 1000--1099)
        12  Department of Transportation (Parts 1200--1299)
        13  Department of Commerce (Parts 1300--1399)
        14  Department of the Interior (Parts 1400--1499)
        15  Environmental Protection Agency (Parts 1500--1599)
        16  Office of Personnel Management, Federal Employees 
                Health Benefits Acquisition Regulation (Parts 
                1600--1699)
        17  Office of Personnel Management (Parts 1700--1799)

[[Page 287]]

        18  National Aeronautics and Space Administration (Parts 
                1800--1899)
        19  Broadcasting Board of Governors (Parts 1900--1999)
        20  Nuclear Regulatory Commission (Parts 2000--2099)
        21  Office of Personnel Management, Federal Employees 
                Group Life Insurance Federal Acquisition 
                Regulation (Parts 2100--2199)
        23  Social Security Administration (Parts 2300--2399)
        24  Department of Housing and Urban Development (Parts 
                2400--2499)
        25  National Science Foundation (Parts 2500--2599)
        28  Department of Justice (Parts 2800--2899)
        29  Department of Labor (Parts 2900--2999)
        30  Department of Homeland Security, Homeland Security 
                Acquisition Regulation (HSAR) (Parts 3000--3099)
        34  Department of Education Acquisition Regulation (Parts 
                3400--3499)
        51  Department of the Army Acquisition Regulations (Parts 
                5100--5199) [Reserved]
        52  Department of the Navy Acquisition Regulations (Parts 
                5200--5299)
        53  Department of the Air Force Federal Acquisition 
                Regulation Supplement (Parts 5300--5399) 
                [Reserved]
        54  Defense Logistics Agency, Department of Defense (Parts 
                5400--5499)
        57  African Development Foundation (Parts 5700--5799)
        61  Civilian Board of Contract Appeals, General Services 
                Administration (Parts 6100--6199)
        99  Cost Accounting Standards Board, Office of Federal 
                Procurement Policy, Office of Management and 
                Budget (Parts 9900--9999)

                       Title 49--Transportation

            Subtitle A--Office of the Secretary of Transportation 
                (Parts 1--99)
            Subtitle B--Other Regulations Relating to 
                Transportation
         I  Pipeline and Hazardous Materials Safety 
                Administration, Department of Transportation 
                (Parts 100--199)
        II  Federal Railroad Administration, Department of 
                Transportation (Parts 200--299)
       III  Federal Motor Carrier Safety Administration, 
                Department of Transportation (Parts 300--399)
        IV  Coast Guard, Department of Homeland Security (Parts 
                400--499)
         V  National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 500--599)
        VI  Federal Transit Administration, Department of 
                Transportation (Parts 600--699)
       VII  National Railroad Passenger Corporation (AMTRAK) 
                (Parts 700--799)

[[Page 288]]

      VIII  National Transportation Safety Board (Parts 800--999)
         X  Surface Transportation Board (Parts 1000--1399)
        XI  Research and Innovative Technology Administration, 
                Department of Transportation (Parts 1400--1499) 
                [Reserved]
       XII  Transportation Security Administration, Department of 
                Homeland Security (Parts 1500--1699)

                   Title 50--Wildlife and Fisheries

         I  United States Fish and Wildlife Service, Department of 
                the Interior (Parts 1--199)
        II  National Marine Fisheries Service, National Oceanic 
                and Atmospheric Administration, Department of 
                Commerce (Parts 200--299)
       III  International Fishing and Related Activities (Parts 
                300--399)
        IV  Joint Regulations (United States Fish and Wildlife 
                Service, Department of the Interior and National 
                Marine Fisheries Service, National Oceanic and 
                Atmospheric Administration, Department of 
                Commerce); Endangered Species Committee 
                Regulations (Parts 400--499)
         V  Marine Mammal Commission (Parts 500--599)
        VI  Fishery Conservation and Management, National Oceanic 
                and Atmospheric Administration, Department of 
                Commerce (Parts 600--699)

[[Page 289]]





           Alphabetical List of Agencies Appearing in the CFR




                      (Revised as of July 1, 2024)

                                                  CFR Title, Subtitle or 
                     Agency                               Chapter

Administrative Conference of the United States    1, III
Advisory Council on Historic Preservation         36, VIII
Advocacy and Outreach, Office of                  7, XXV
Afghanistan Reconstruction, Special Inspector     5, LXXXIII
     General for
African Development Foundation                    22, XV
  Federal Acquisition Regulation                  48, 57
Agency for International Development              2, VII; 22, II
  Federal Acquisition Regulation                  48, 7
Agricultural Marketing Service                    7, I, VIII, IX, X, XI; 9, 
                                                  II
Agricultural Research Service                     7, V
Agriculture, Department of                        2, IV; 5, LXXIII
  Advocacy and Outreach, Office of                7, XXV
  Agricultural Marketing Service                  7, I, VIII, IX, X, XI; 9, 
                                                  II
  Agricultural Research Service                   7, V
  Animal and Plant Health Inspection Service      7, III; 9, I
  Chief Financial Officer, Office of              7, XXX
  Commodity Credit Corporation                    7, XIV
  Economic Research Service                       7, XXXVII
  Energy Policy and New Uses, Office of           2, IX; 7, XXIX
  Environmental Quality, Office of                7, XXXI
  Farm Service Agency                             7, VII, XVIII
  Federal Acquisition Regulation                  48, 4
  Federal Crop Insurance Corporation              7, IV
  Food and Nutrition Service                      7, II
  Food Safety and Inspection Service              9, III
  Foreign Agricultural Service                    7, XV
  Forest Service                                  36, II
  Information Resources Management, Office of     7, XXVII
  Inspector General, Office of                    7, XXVI
  National Agricultural Library                   7, XLI
  National Agricultural Statistics Service        7, XXXVI
  National Institute of Food and Agriculture      7, XXXIV
  Natural Resources Conservation Service          7, VI
  Operations, Office of                           7, XXVIII
  Procurement and Property Management, Office of  7, XXXII
  Rural Business-Cooperative Service              7, XVIII, XLII
  Rural Development Administration                7, XLII
  Rural Housing Service                           7, XVIII, XXXV
  Rural Utilities Service                         7, XVII, XVIII, XLII
  Secretary of Agriculture, Office of             7, Subtitle A
  Transportation, Office of                       7, XXXIII
  World Agricultural Outlook Board                7, XXXVIII
Air Force, Department of                          32, VII
  Federal Acquisition Regulation Supplement       48, 53
Air Transportation Stabilization Board            14, VI
Alcohol and Tobacco Tax and Trade Bureau          27, I
Alcohol, Tobacco, Firearms, and Explosives,       27, II
     Bureau of
AMTRAK                                            49, VII
American Battle Monuments Commission              36, IV
American Indians, Office of the Special Trustee   25, VII
Animal and Plant Health Inspection Service        7, III; 9, I
Appalachian Regional Commission                   5, IX
Architectural and Transportation Barriers         36, XI
   Compliance Board
[[Page 290]]

Arctic Research Commission                        45, XXIII
Armed Forces Retirement Home                      5, XI; 38, II
Army, Department of                               32, V
  Engineers, Corps of                             33, II; 36, III
  Federal Acquisition Regulation                  48, 51
Benefits Review Board                             20, VII
Bilingual Education and Minority Languages        34, V
     Affairs, Office of
Blind or Severely Disabled, Committee for         41, 51
     Purchase from People Who Are
  Federal Acquisition Regulation                  48, 19
Career, Technical, and Adult Education, Office    34, IV
     of
Census Bureau                                     15, I
Centers for Medicare & Medicaid Services          42, IV
Central Intelligence Agency                       32, XIX
Chemical Safety and Hazard Investigation Board    40, VI
Chief Financial Officer, Office of                7, XXX
Child Support Services, Office of                 45, III
Children and Families, Administration for         45, II, IV, X, XIII
Civil Rights, Commission on                       5, LXVIII; 45, VII
Civil Rights, Office for                          34, I
Coast Guard                                       33, I; 46, I; 49, IV
Coast Guard (Great Lakes Pilotage)                46, III
Commerce, Department of                           2, XIII; 44, IV; 50, VI
  Census Bureau                                   15, I
  Economic Affairs, Office of the Under-          15, XV
       Secretary for
  Economic Analysis, Bureau of                    15, VIII
  Economic Development Administration             13, III
  Emergency Management and Assistance             44, IV
  Federal Acquisition Regulation                  48, 13
  Foreign-Trade Zones Board                       15, IV
  Industry and Security, Bureau of                15, VII
  International Trade Administration              15, III; 19, III
  National Institute of Standards and Technology  15, II; 37, IV
  National Marine Fisheries Service               50, II, IV
  National Oceanic and Atmospheric                15, IX; 50, II, III, IV, 
       Administration                             VI
  National Technical Information Service          15, XI
  National Telecommunications and Information     15, XXIII; 47, III, IV
       Administration
  National Weather Service                        15, IX
  Patent and Trademark Office, United States      37, I
  Secretary of Commerce, Office of                15, Subtitle A
Commercial Space Transportation                   14, III
Commodity Credit Corporation                      7, XIV
Commodity Futures Trading Commission              5, XLI; 17, I
Community Planning and Development, Office of     24, V, VI
     Assistant Secretary for
Community Services, Office of                     45, X
Comptroller of the Currency                       12, I
Construction Industry Collective Bargaining       29, IX
     Commission
Consumer Financial Protection Bureau              5, LXXXIV; 12, X
Consumer Product Safety Commission                5, LXXI; 16, II
Copyright Royalty Board                           37, III
Corporation for National and Community Service    2, XXII; 45, XII, XXV
Cost Accounting Standards Board                   48, 99
Council on Environmental Quality                  40, V
Council of the Inspectors General on Integrity    5, XCVIII
     and Efficiency
Court Services and Offender Supervision Agency    5, LXX; 28, VIII
     for the District of Columbia
Customs and Border Protection                     19, I
Defense, Department of                            2, XI; 5, XXVI; 32, 
                                                  Subtitle A; 40, VII
  Advanced Research Projects Agency               32, I
  Air Force Department                            32, VII
  Army Department                                 32, V; 33, II; 36, III; 
                                                  48, 51
  Defense Acquisition Regulations System          48, 2
  Defense Intelligence Agency                     32, I

[[Page 291]]

  Defense Logistics Agency                        32, I, XII; 48, 54
  Engineers, Corps of                             33, II; 36, III
  National Imagery and Mapping Agency             32, I
  Navy, Department of                             32, VI; 48, 52
  Secretary of Defense, Office of                 2, XI; 32, I
Defense Contract Audit Agency                     32, I
Defense Intelligence Agency                       32, I
Defense Logistics Agency                          32, XII; 48, 54
Defense Nuclear Facilities Safety Board           10, XVII
Delaware River Basin Commission                   18, III
Denali Commission                                 45, IX
Disability, National Council on                   5, C; 34, XII
District of Columbia, Court Services and          5, LXX; 28, VIII
     Offender Supervision Agency for the
Drug Enforcement Administration                   21, II
East-West Foreign Trade Board                     15, XIII
Economic Affairs, Office of the Under-Secretary   15, XV
     for
Economic Analysis, Bureau of                      15, VIII
Economic Development Administration               13, III
Economic Research Service                         7, XXXVII
Education, Department of                          2, XXXIV; 5, LIII
  Bilingual Education and Minority Languages      34, V
       Affairs, Office of
  Career, Technical, and Adult Education, Office  34, IV
       of
  Civil Rights, Office for                        34, I
  Educational Research and Improvement, Office    34, VII
       of
  Elementary and Secondary Education, Office of   34, II
  Federal Acquisition Regulation                  48, 34
  Postsecondary Education, Office of              34, VI
  Secretary of Education, Office of               34, Subtitle A
  Special Education and Rehabilitative Services,  34, III
       Office of
Educational Research and Improvement, Office of   34, VII
Election Assistance Commission                    2, LVIII; 11, II
Elementary and Secondary Education, Office of     34, II
Emergency Oil and Gas Guaranteed Loan Board       13, V
Emergency Steel Guarantee Loan Board              13, IV
Employee Benefits Security Administration         29, XXV
Employees' Compensation Appeals Board             20, IV
Employees Loyalty Board                           5, V
Employment and Training Administration            20, V
Employment Policy, National Commission for        1, IV
Employment Standards Administration               20, VI
Endangered Species Committee                      50, IV
Energy, Department of                             2, IX; 5, XXIII; 10, II, 
                                                  III, X
  Federal Acquisition Regulation                  48, 9
  Federal Energy Regulatory Commission            5, XXIV; 18, I
  Property Management Regulations                 41, 109
Energy, Office of                                 7, XXIX
Engineers, Corps of                               33, II; 36, III
Engraving and Printing, Bureau of                 31, VI
Environmental Protection Agency                   2, XV; 5, LIV; 40, I, IV, 
                                                  VII
  Federal Acquisition Regulation                  48, 15
  Property Management Regulations                 41, 115
Environmental Quality, Office of                  7, XXXI
Equal Employment Opportunity Commission           5, LXII; 29, XIV
Equal Opportunity, Office of Assistant Secretary  24, I
     for
Executive Office of the President                 3, I
  Environmental Quality, Council on               40, V
  Management and Budget, Office of                2, Subtitle A; 5, III, 
                                                  LXXVII; 14, VI; 48, 99
  National Drug Control Policy, Office of         2, XXXVI; 21, III
  National Security Council                       32, XXI; 47, II
  Presidential Documents                          3
  Science and Technology Policy, Office of        32, XXIV; 47, II
  Trade Representative, Office of the United      15, XX
     States
[[Page 292]]

Export-Import Bank of the United States           2, XXXV; 5, LII; 12, IV
Families and Services, Administration of          45, III
Family Assistance, Office of                      45, II
Farm Credit Administration                        5, XXXI; 12, VI
Farm Credit System Insurance Corporation          5, XXX; 12, XIV
Farm Service Agency                               7, VII, XVIII
Federal Acquisition Regulation                    48, 1
Federal Acquisition Security Council              41, 201
Federal Aviation Administration                   14, I
  Commercial Space Transportation                 14, III
Federal Claims Collection Standards               31, IX
Federal Communications Commission                 2, LX; 5, XXIX; 47, I
Federal Contract Compliance Programs, Office of   41, 60
Federal Crop Insurance Corporation                7, IV
Federal Deposit Insurance Corporation             5, XXII; 12, III
Federal Election Commission                       5, XXXVII; 11, I
Federal Emergency Management Agency               44, I
Federal Employees Group Life Insurance Federal    48, 21
     Acquisition Regulation
Federal Employees Health Benefits Acquisition     48, 16
     Regulation
Federal Energy Regulatory Commission              5, XXIV; 18, I
Federal Financial Institutions Examination        12, XI
     Council
Federal Financing Bank                            12, VIII
Federal Highway Administration                    23, I, II
Federal Home Loan Mortgage Corporation            1, IV
Federal Housing Enterprise Oversight Office       12, XVII
Federal Housing Finance Agency                    5, LXXX; 12, XII
Federal Labor Relations Authority                 5, XIV, XLIX; 22, XIV
Federal Law Enforcement Training Center           31, VII
Federal Management Regulation                     41, 102
Federal Maritime Commission                       46, IV
Federal Mediation and Conciliation Service        5, CIII; 29, XII
Federal Mine Safety and Health Review Commission  5, LXXIV; 29, XXVII
Federal Motor Carrier Safety Administration       49, III
Federal Permitting Improvement Steering Council   40, IX
Federal Prison Industries, Inc.                   28, III
Federal Procurement Policy Office                 48, 99
Federal Property Management Regulations           41, 101
Federal Railroad Administration                   49, II
Federal Register, Administrative Committee of     1, I
Federal Register, Office of                       1, II
Federal Reserve System                            12, II
  Board of Governors                              5, LVIII
Federal Retirement Thrift Investment Board        5, VI, LXXVI
Federal Service Impasses Panel                    5, XIV
Federal Trade Commission                          5, XLVII; 16, I
Federal Transit Administration                    49, VI
Federal Travel Regulation System                  41, Subtitle F
Financial Crimes Enforcement Network              31, X
Financial Research Office                         12, XVI
Financial Stability Oversight Council             12, XIII
Fine Arts, Commission of                          45, XXI
Fiscal Service                                    31, II
Fish and Wildlife Service, United States          50, I, IV
Food and Drug Administration                      21, I
Food and Nutrition Service                        7, II
Food Safety and Inspection Service                9, III
Foreign Agricultural Service                      7, XV
Foreign Assets Control, Office of                 31, V
Foreign Claims Settlement Commission of the       45, V
     United States
Foreign Service Grievance Board                   22, IX
Foreign Service Impasse Disputes Panel            22, XIV
Foreign Service Labor Relations Board             22, XIV
Foreign-Trade Zones Board                         15, IV
Forest Service                                    36, II
General Services Administration                   5, LVII; 41, 105
  Contract Appeals, Board of                      48, 61

[[Page 293]]

  Federal Acquisition Regulation                  48, 5
  Federal Management Regulation                   41, 102
  Federal Property Management Regulations         41, 101
  Federal Travel Regulation System                41, Subtitle F
  General                                         41, 300
  Payment From a Non-Federal Source for Travel    41, 304
       Expenses
  Payment of Expenses Connected With the Death    41, 303
       of Certain Employees
  Relocation Allowances                           41, 302
  Temporary Duty (TDY) Travel Allowances          41, 301
Geological Survey                                 30, IV
Government Accountability Office                  4, I
Government Ethics, Office of                      5, XVI
Government National Mortgage Association          24, III
Grain Inspection, Packers and Stockyards          7, VIII; 9, II
     Administration
Great Lakes St. Lawrence Seaway Development       33, IV
     Corporation
Gulf Coast Ecosystem Restoration Council          2, LIX; 40, VIII
Harry S. Truman Scholarship Foundation            45, XVIII
Health and Human Services, Department of          2, III; 5, XLV; 45, 
                                                  Subtitle A
  Centers for Medicare & Medicaid Services        42, IV
  Child Support Services, Office of               45, III
  Children and Families, Administration for       45, II, IV, X, XIII
  Community Services, Office of                   45, X
  Families and Services, Administration of        45, III
  Family Assistance, Office of                    45, II
  Federal Acquisition Regulation                  48, 3
  Food and Drug Administration                    21, I
  Indian Health Service                           25, V
  Inspector General (Health Care), Office of      42, V
  Public Health Service                           42, I
  Refugee Resettlement, Office of                 45, IV
Homeland Security, Department of                  2, XXX; 5, XXXVI; 6, I; 8, 
                                                  I
  Coast Guard                                     33, I; 46, I; 49, IV
  Coast Guard (Great Lakes Pilotage)              46, III
  Customs and Border Protection                   19, I
  Federal Emergency Management Agency             44, I
  Human Resources Management and Labor Relations  5, XCVII
       Systems
  Immigration and Customs Enforcement Bureau      19, IV
  Transportation Security Administration          49, XII
HOPE for Homeowners Program, Board of Directors   24, XXIV
     of
Housing and Urban Development, Department of      2, XXIV; 5, LXV; 24, 
                                                  Subtitle B
  Community Planning and Development, Office of   24, V, VI
       Assistant Secretary for
  Equal Opportunity, Office of Assistant          24, I
       Secretary for
  Federal Acquisition Regulation                  48, 24
  Federal Housing Enterprise Oversight, Office    12, XVII
       of
  Government National Mortgage Association        24, III
  Housing--Federal Housing Commissioner, Office   24, II, VIII, X, XX
       of Assistant Secretary for
  Housing, Office of, and Multifamily Housing     24, IV
       Assistance Restructuring, Office of
  Inspector General, Office of                    24, XII
  Public and Indian Housing, Office of Assistant  24, IX
       Secretary for
  Secretary, Office of                            24, Subtitle A, VII
Housing--Federal Housing Commissioner, Office of  24, II, VIII, X, XX
     Assistant Secretary for
Housing, Office of, and Multifamily Housing       24, IV
     Assistance Restructuring, Office of
Immigration and Customs Enforcement Bureau        19, IV
Immigration Review, Executive Office for          8, V
Independent Counsel, Office of                    28, VII
Independent Counsel, Offices of                   28, VI
Indian Affairs, Bureau of                         25, I, V

[[Page 294]]

Indian Affairs, Office of the Assistant           25, VI
     Secretary
Indian Arts and Crafts Board                      25, II
Indian Health Service                             25, V
Industry and Security, Bureau of                  15, VII
Information Resources Management, Office of       7, XXVII
Information Security Oversight Office, National   32, XX
     Archives and Records Administration
Inspector General
  Agriculture Department                          7, XXVI
  Health and Human Services Department            42, V
  Housing and Urban Development Department        24, XII, XV
Institute of Peace, United States                 22, XVII
Intellectual Property Enforcement Coordinator,    5, CIV
     Office of
Inter-American Foundation                         5, LXIII; 22, X
Interior, Department of                           2, XIV
  American Indians, Office of the Special         25, VII
       Trustee
  Endangered Species Committee                    50, IV
  Federal Acquisition Regulation                  48, 14
  Federal Property Management Regulations System  41, 114
  Fish and Wildlife Service, United States        50, I, IV
  Geological Survey                               30, IV
  Indian Affairs, Bureau of                       25, I, V
  Indian Affairs, Office of the Assistant         25, VI
       Secretary
  Indian Arts and Crafts Board                    25, II
  Land Management, Bureau of                      43, II
  National Indian Gaming Commission               25, III
  National Park Service                           36, I
  Natural Resource Revenue, Office of             30, XII
  Ocean Energy Management, Bureau of              30, V
  Reclamation, Bureau of                          43, I
  Safety and Environmental Enforcement, Bureau    30, II
       of
  Secretary of the Interior, Office of            2, XIV; 43, Subtitle A
  Surface Mining Reclamation and Enforcement,     30, VII
       Office of
Internal Revenue Service                          26, I
International Boundary and Water Commission,      22, XI
     United States and Mexico, United States 
     Section
International Development, United States Agency   22, II
     for
  Federal Acquisition Regulation                  48, 7
International Development Cooperation Agency,     22, XII
     United States
International Development Finance Corporation,    2, XVI; 5, XXXIII; 22, VII
     U.S.
International Joint Commission, United States     22, IV
     and Canada
International Organizations Employees Loyalty     5, V
     Board
International Trade Administration                15, III; 19, III
International Trade Commission, United States     19, II
Interstate Commerce Commission                    5, XL
Investment Security, Office of                    31, VIII
James Madison Memorial Fellowship Foundation      45, XXIV
Japan-United States Friendship Commission         22, XVI
Joint Board for the Enrollment of Actuaries       20, VIII
Justice, Department of                            2, XXVIII; 5, XXVIII; 28, 
                                                  I, XI; 40, IV
  Alcohol, Tobacco, Firearms, and Explosives,     27, II
       Bureau of
  Drug Enforcement Administration                 21, II
  Federal Acquisition Regulation                  48, 28
  Federal Claims Collection Standards             31, IX
  Federal Prison Industries, Inc.                 28, III
  Foreign Claims Settlement Commission of the     45, V
       United States
  Immigration Review, Executive Office for        8, V
  Independent Counsel, Offices of                 28, VI
  Prisons, Bureau of                              28, V
  Property Management Regulations                 41, 128
Labor, Department of                              2, XXIX; 5, XLII
  Benefits Review Board                           20, VII
  Employee Benefits Security Administration       29, XXV

[[Page 295]]

  Employees' Compensation Appeals Board           20, IV
  Employment and Training Administration          20, V
  Federal Acquisition Regulation                  48, 29
  Federal Contract Compliance Programs, Office    41, 60
       of
  Federal Procurement Regulations System          41, 50
  Labor-Management Standards, Office of           29, II, IV
  Mine Safety and Health Administration           30, I
  Occupational Safety and Health Administration   29, XVII
  Public Contracts                                41, 50
  Secretary of Labor, Office of                   29, Subtitle A
  Veterans' Employment and Training Service,      41, 61; 20, IX
       Office of the Assistant Secretary for
  Wage and Hour Division                          29, V
  Workers' Compensation Programs, Office of       20, I, VI
Labor-Management Standards, Office of             29, II, IV
Land Management, Bureau of                        43, II
Legal Services Corporation                        45, XVI
Libraries and Information Science, National       45, XVII
     Commission on
Library of Congress                               36, VII
  Copyright Royalty Board                         37, III
  U.S. Copyright Office                           37, II
Management and Budget, Office of                  5, III, LXXVII; 14, VI; 
                                                  48, 99
Marine Mammal Commission                          50, V
Maritime Administration                           46, II
Merit Systems Protection Board                    5, II, LXIV
Micronesian Status Negotiations, Office for       32, XXVII
Military Compensation and Retirement              5, XCIX
     Modernization Commission
Millennium Challenge Corporation                  22, XIII
Mine Safety and Health Administration             30, I
Minority Business Development Agency              15, XIV
Miscellaneous Agencies                            1, IV
Monetary Offices                                  31, I
Morris K. Udall Scholarship and Excellence in     36, XVI
     National Environmental Policy Foundation
Museum and Library Services, Institute of         2, XXXI
National Aeronautics and Space Administration     2, XVIII; 5, LIX; 14, V
  Federal Acquisition Regulation                  48, 18
National Agricultural Library                     7, XLI
National Agricultural Statistics Service          7, XXXVI
National and Community Service, Corporation for   2, XXII; 45, XII, XXV
National Archives and Records Administration      2, XXVI; 5, LXVI; 36, XII
  Information Security Oversight Office           32, XX
National Capital Planning Commission              1, IV, VI
National Counterintelligence Center               32, XVIII
National Credit Union Administration              5, LXXXVI; 12, VII
National Crime Prevention and Privacy Compact     28, IX
     Council
National Drug Control Policy, Office of           2, XXXVI; 21, III
National Endowment for the Arts                   2, XXXII
National Endowment for the Humanities             2, XXXIII
National Foundation on the Arts and the           45, XI
     Humanities
National Geospatial-Intelligence Agency           32, I
National Highway Traffic Safety Administration    23, II, III; 47, VI; 49, V
National Imagery and Mapping Agency               32, I
National Indian Gaming Commission                 25, III
National Institute of Food and Agriculture        7, XXXIV
National Institute of Standards and Technology    15, II; 37, IV
National Intelligence, Office of Director of      5, IV; 32, XVII
National Labor Relations Board                    5, LXI; 29, I
National Marine Fisheries Service                 50, II, IV
National Mediation Board                          5, CI; 29, X
National Oceanic and Atmospheric Administration   15, IX; 50, II, III, IV, 
                                                  VI
National Park Service                             36, I
National Railroad Adjustment Board                29, III
National Railroad Passenger Corporation (AMTRAK)  49, VII

[[Page 296]]

National Science Foundation                       2, XXV; 5, XLIII; 45, VI
  Federal Acquisition Regulation                  48, 25
National Security Council                         32, XXI; 47, II
National Technical Information Service            15, XI
National Telecommunications and Information       15, XXIII; 47, III, IV, V
     Administration
National Transportation Safety Board              49, VIII
Natural Resource Revenue, Office of               30, XII
Natural Resources Conservation Service            7, VI
Navajo and Hopi Indian Relocation, Office of      25, IV
Navy, Department of                               32, VI
  Federal Acquisition Regulation                  48, 52
Neighborhood Reinvestment Corporation             24, XXV
Northeast Interstate Low-Level Radioactive Waste  10, XVIII
     Commission
Nuclear Regulatory Commission                     2, XX; 5, XLVIII; 10, I
  Federal Acquisition Regulation                  48, 20
Occupational Safety and Health Administration     29, XVII
Occupational Safety and Health Review Commission  29, XX
Ocean Energy Management, Bureau of                30, V
Oklahoma City National Memorial Trust             36, XV
Operations Office                                 7, XXVIII
Patent and Trademark Office, United States        37, I
Payment From a Non-Federal Source for Travel      41, 304
     Expenses
Payment of Expenses Connected With the Death of   41, 303
     Certain Employees
Peace Corps                                       2, XXXVII; 22, III
Pennsylvania Avenue Development Corporation       36, IX
Pension Benefit Guaranty Corporation              29, XL
Personnel Management, Office of                   5, I, IV, XXXV; 45, VIII
  Federal Acquisition Regulation                  48, 17
  Federal Employees Group Life Insurance Federal  48, 21
       Acquisition Regulation
  Federal Employees Health Benefits Acquisition   48, 16
       Regulation
  Human Resources Management and Labor Relations  5, XCVII
       Systems, Department of Homeland Security
Pipeline and Hazardous Materials Safety           49, I
     Administration
Postal Regulatory Commission                      5, XLVI; 39, III
Postal Service, United States                     5, LX; 39, I
Postsecondary Education, Office of                34, VI
President's Commission on White House             1, IV
     Fellowships
Presidential Documents                            3
Presidio Trust                                    36, X
Prisons, Bureau of                                28, V
Privacy and Civil Liberties Oversight Board       6, X
Procurement and Property Management, Office of    7, XXXII
Public and Indian Housing, Office of Assistant    24, IX
     Secretary for
Public Contracts, Department of Labor             41, 50
Public Health Service                             42, I
Railroad Retirement Board                         20, II
Reclamation, Bureau of                            43, I
Refugee Resettlement, Office of                   45, IV
Relocation Allowances                             41, 302
Research and Innovative Technology                49, XI
     Administration
Rural Business-Cooperative Service                7, XVIII, XLII, L
Rural Housing Service                             7, XVIII, XXXV, L
Rural Utilities Service                           7, XVII, XVIII, XLII, L
Safety and Environmental Enforcement, Bureau of   30, II
Science and Technology Policy, Office of          32, XXIV; 47, II
Secret Service                                    31, IV
Securities and Exchange Commission                5, XXXIV; 17, II
Selective Service System                          32, XVI
Small Business Administration                     2, XXVII; 13, I
Smithsonian Institution                           36, V
Social Security Administration                    2, XXIII; 20, III; 48, 23
Soldiers' and Airmen's Home, United States        5, XI
Special Counsel, Office of                        5, VIII

[[Page 297]]

Special Education and Rehabilitative Services,    34, III
     Office of
State, Department of                              2, VI; 22, I; 28, XI
  Federal Acquisition Regulation                  48, 6
Surface Mining Reclamation and Enforcement,       30, VII
     Office of
Surface Transportation Board                      49, X
Susquehanna River Basin Commission                18, VIII
Tennessee Valley Authority                        5, LXIX; 18, XIII
Trade Representative, United States, Office of    15, XX
Transportation, Department of                     2, XII; 5, L
  Commercial Space Transportation                 14, III
  Emergency Management and Assistance             44, IV
  Federal Acquisition Regulation                  48, 12
  Federal Aviation Administration                 14, I
  Federal Highway Administration                  23, I, II
  Federal Motor Carrier Safety Administration     49, III
  Federal Railroad Administration                 49, II
  Federal Transit Administration                  49, VI
  Great Lakes St. Lawrence Seaway Development     33, IV
       Corporation
  Maritime Administration                         46, II
  National Highway Traffic Safety Administration  23, II, III; 47, IV; 49, V
  Pipeline and Hazardous Materials Safety         49, I
       Administration
  Secretary of Transportation, Office of          14, II; 49, Subtitle A
  Transportation Statistics Bureau                49, XI
Transportation, Office of                         7, XXXIII
Transportation Security Administration            49, XII
Transportation Statistics Bureau                  49, XI
Travel Allowances, Temporary Duty (TDY)           41, 301
Treasury, Department of the                       2, X; 5, XXI; 12, XV; 17, 
                                                  IV; 31, IX
  Alcohol and Tobacco Tax and Trade Bureau        27, I
  Community Development Financial Institutions    12, XVIII
       Fund
  Comptroller of the Currency                     12, I
  Customs and Border Protection                   19, I
  Engraving and Printing, Bureau of               31, VI
  Federal Acquisition Regulation                  48, 10
  Federal Claims Collection Standards             31, IX
  Federal Law Enforcement Training Center         31, VII
  Financial Crimes Enforcement Network            31, X
  Fiscal Service                                  31, II
  Foreign Assets Control, Office of               31, V
  Internal Revenue Service                        26, I
  Investment Security, Office of                  31, VIII
  Monetary Offices                                31, I
  Secret Service                                  31, IV
  Secretary of the Treasury, Office of            31, Subtitle A
Truman, Harry S. Scholarship Foundation           45, XVIII
United States Agency for Global Media             22, V
United States and Canada, International Joint     22, IV
     Commission
United States and Mexico, International Boundary  22, XI
     and Water Commission, United States Section
U.S. Copyright Office                             37, II
U.S. Office of Special Counsel                    5, CII
Utah Reclamation Mitigation and Conservation      43, III
     Commission
Veterans Affairs, Department of                   2, VIII; 38, I
  Federal Acquisition Regulation                  48, 8
Veterans' Employment and Training Service,        41, 61; 20, IX
     Office of the Assistant Secretary for
Vice President of the United States, Office of    32, XXVIII
Wage and Hour Division                            29, V
Water Resources Council                           18, VI
Workers' Compensation Programs, Office of         20, I, VI
World Agricultural Outlook Board                  7, XXXVIII

[[Page 299]]



List of CFR Sections Affected



All changes in this volume of the Code of Federal Regulations (CFR) that 
were made by documents published in the Federal Register since January 
1, 2019 are enumerated in the following list. Entries indicate the 
nature of the changes effected. Page numbers refer to Federal Register 
pages. The user should consult the entries for chapters, parts and 
subparts as well as sections for revisions.
For changes to this volume of the CFR prior to this listing, consult the 
annual edition of the monthly List of CFR Sections Affected (LSA). The 
LSA is available at www.govinfo.gov. For changes to this volume of the 
CFR prior to 2001, see the ``List of CFR Sections Affected, 1949-1963, 
1964-1972, 1973-1985, and 1986-2000'' published in 11 separate volumes. 
The ``List of CFR Sections Affected 1986-2000'' is available at 
www.govinfo.gov.

                                  2019

40 CFR
                                                                   84 FR
                                                                    Page
Chapter I
80.2 (aa) added....................................................69340
80.27 (d)(2) revised...............................................27021
80.27 (a)(2)(ii) table amended.....................................49474
80.28 (g)(6)(iii), (8) introductory text, and (ii) revised.........27021
80.70 (j)(3) revised................................................2456
80.501 (a)(6) and (7) redesignated as (a)(7) and (8); new (a)(6) 
        added; (b) revised.........................................69340
80.590 Heading and (a) introductory text revised; (a)(7)(viii) 
        added......................................................69341
80.598 (a)(2)(i)(G) and (b)(8)(iii) revised........................69341
80.602 Heading, (a), and (b)(4)(i) revised.........................69341
80.605 Added.......................................................69341
80.1401 Amended; eff. 7-10-19......................................27021
80.1402 Added; eff. 7-10-19........................................27022
80.1435 Added; eff. 7-10-19........................................27022
80.1451 (c)(2) introductory text revised; (c)(2)(i) through 
        (xviii) redesignated as (c)(2)(i)(A) through (R); new 
        (c)(2)(i) introductory text and new (ii) added; eff. 7-10-
        19.........................................................27023
80.1452 (c)(12) revised; (c)(15) added; eff. 7-10-19...............27024
80.1454 (i)(1), (2), (u), and (v) added; eff. 7-10-19..............27024
80.1464 (a)(4), (5), (6), (b)(5), (6), (7), (c)(3), (4), and (5) 
        added; eff. 7-10-19........................................27024
80.1503 (a)(1)(vi)(C), (b)(1)(vi)(C), (D), and (E) removed; 
        (a)(1)(vi)(B) and (b)(1)(vi)(B) revised....................27025
80.1504 (f) and (g) removed........................................27025

                                  2020

40 CFR
                                                                   85 FR
                                                                    Page
Chapter I
80.1 Revised.......................................................78465
80.2 Revised.......................................................78465
80.3 Removed; eff. 1-1-22..........................................78467
80.7 (c) amended...................................................78467
80.10 Added.........................................................7070
80.22 Removed; eff. 1-1-22.........................................78467
80.23 Removed; eff. 1-1-22.........................................78467
80.26 Removed; eff. 1-1-22.........................................78467
80.27 (b) and (e)(1)(i) revised.....................................7070
80.27 Removed; eff. 1-1-22.........................................78467
80.28 Removed; eff. 1-1-22.........................................78467
80.29 Removed; eff. 1-1-22.........................................78467
80.30 Removed; eff. 1-1-22.........................................78467
80.32 Removed; eff. 1-1-22.........................................78467
80.33 Removed; eff. 1-1-22.........................................78467
80.46 (a), (b), and (d) through (g) revised; (h)(1)(iv), (v), 
        (vii), (viii), (x), (xiii), (xv), and (xvi) removed.........7070

[[Page 300]]

80.47 (b), (c)(2)(i), (ii), (3), (d)(2), (e)(2), (f)(2), (g)(2), 
        (h)(2), (i)(2), (j)(2), (l)(2)(i), (4), (n)(1), (2)(i), 
        (o)(1), (2)(i), (p)(1), (2)(i), and (3)(i) revised..........7070
80.69 (a)(11)(viii)(C) revised......................................7072
80.40--80.89 (Subpart D) Removed; eff. 1-1-22......................78467
80.93 (d)(4) revised................................................7072
80.90--80.124 (Subpart E) Removed; eff. 1-1-22.....................78467
80.125--80.135 (Subpart F) Removed; eff. 1-1-22....................78467
80.174 (b) and (c) revised..........................................7072
80.140--80.177 (Subpart G) Removed; eff. 1-1-22....................78467
80.235 (b) revised..................................................7073
80.290 (b) revised..................................................7073
80.180--80.415 (Subpart H) Removed; eff. 1-1-22....................78467
80.533 (b) revised..................................................7073
80.574 (b) revised..................................................7073
80.585 (d)(1) and (2) amended; (d)(4) revised.......................7073
80.595 (b) revised..................................................7073
80.607 (a) revised..................................................7073
80.500--80.620 (Subpart I) Removed; eff. 1-1-22....................78467
80.855 (c)(2) revised...............................................7073
80.800--80.1045 (Subpart J) Removed; eff. 1-1-22...................78467
80.1100--80.1167 (Subpart K) Removed; eff. 1-1-22..................78467
80.1240 (a)(1)(i) amended...........................................7073
80.1285 (b) revised.................................................7073
80.1340 (b) revised.................................................7073
80.1200--80.1363 (Subpart L) Removed; eff. 1-1-22..................78467
80.1400 Introductory text amended..................................78467
80.1401 Amended..............................................7073, 78467
80.1405 (a)(11) added; (c) amended..................................7074
80.1407 (f)(9), (10), and (11) added................................7074
80.1407 (e) amended; (f)(7) revised................................78467
80.1408 Added.......................................................7074
80.1415 (c)(4) revised..............................................7075
80.1416 (b)(1)(i) amended..........................................78467
80.1426 Heading, (a)(1)(iii), (2), (c)(4), and (5) revised; (f)(1) 
        Table 1 amended.............................................7075
80.1427 (b)(2) amended; (c)(2) revised..............................7076
80.1427 (a)(2) introductory text amended; (a)(4) removed...........78467
80.1429 (b)(3) revised..............................................7076
80.1429 (b)(9) introductory text amended; (f) and (g) removed......78467
80.1430 (a), (b)(1), (c), (d)(1), and (e) introductory text 
        amended; (h) added..........................................7076
80.1431 (b)(2) revised..............................................7076
80.1434 Added.......................................................7076
80.1440 Heading and (a) revised; (f) added..........................7077
80.1440 (a)(2) amended.............................................78467
80.1441 (h) revised.................................................7077
80.1441 (a)(6) and (b)(4) removed..................................78467
80.1442 (i) revised.................................................7077
80.1442 (a)(3) and (b)(6) removed..................................78467
80.1443 (d)(2) revised..............................................7077
80.1449 (d) revised.................................................7077
80.1450 (b) introductory text, (1)(vii)(A)(1), (B), (viii)(A), 
        (ix)(A) introductory text, (xi)(A), (B), (g)(9), and (h) 
        revised; (d)(1) amended.....................................7077
80.1450 (a), (b), introductory text, (c), (d)(3)(iii), (e), and 
        (g)(1) amended.............................................78467
80.1451 (a)(1)(i), (v), (4), (b) introductory text, (1)(ii)(D), 
        (I), (g)(1)(ii)(D), and (I) revised; (i) and (j) 
        redesignated as (j) and (k); (a)(1)(xix) and new (i) added
                                                                    7079
80.1452 (b)(11) revised; (c) introductory text amended..............7079
80.1453 (b) and (d) revised; (e) added..............................7079
80.1453 (e)(1) amended.............................................78467
80.1454 (a) introductory text, (1), (d)(4), (h)(6)(iii), (j) 
        introductory text, (1), (2) introductory text, (n), and 
        (q) revised; (t) redesignated as (w); new (t) added.........7080
80.1454 (h)(2)(i) amended..........................................78467
80.1460 (b)(7) and (j) added; (g) revised...........................7080
80.1461 (a)(1) and (2) revised......................................7080
80.1463 (d) revised.................................................7080

[[Page 301]]

80.1464 (a) introductory text, (1)(i)(A), (iii), (iv) introductory 
        text, (A), (D), and (v) revised; (a)(1)(vii) added; 
        (b)(1)(ii) amended..........................................7080
80.1464 Introductory text, (a)(1)(iii), (iv)(D), (2)(i), 
        (b)(1)(iv), (v)(A), (2)(i), and (c)(1)(i) amended..........78467
80.1465 Removed....................................................78467
80.1466 Heading, (a), (b), (c) heading, (1), (d)(1)(iii), (v), 
        (vi)(B), (3)(ii), (e)(2)(ii), (f) introductory text, (1) 
        introductory text, (ii)(C), (v)(A), (C), (vii), (2), (4) 
        through (8), (g), (h) introductory text, (3)(iii), (4), 
        (i), (j)(2), (3), (4), (k)(1), (2)(ii), (4)(ii), (l) 
        heading, (1) introductory text, (2)(i), (3), (m)(3)(ii), 
        (6)(i), (n) introductory text, (1), (3), (4), (o) 
        introductory text, and (2) revised; (h)(1) amended; (p) 
        added.......................................................7081
80.1466 (d)(3)(ii), (m)(3) introductory text, (4) introductory 
        text, (5), (6)(ii), and (iii) amended......................78467
80.1467 (h)(2) and (3) amended.....................................78467
80.1469 (c)(1)(ii) and (f)(1) introductory text revised.............7083
80.1469 (c)(5) amended.............................................78467
80.1472 (b)(3)(i) introductory text, (ii)(B), and (iii) revised.....7083
80.1475 Added.......................................................7083
80.1475 (d)(4)(ii) amended.........................................78468
80.1501 Heading, (b)(3)(i), and (5)(i) revised; (b)(5)(ii) removed
                                                                    7084
80.1500--80.1509 (Subpart N) Removed; eff. 1-1-22..................78467
80.1600 Amended.....................................................7084
80.1603 (d)(1) revised; (d)(2) redesignated as (d)(3); new (d)(2) 
        added; (f)(1) amended.......................................7084
80.1609 (a) amended.................................................7084
80.1616 (c)(3) revised..............................................7085
80.1622 (g) revised.................................................7085
80.1625 (c)(2) revised..............................................7085
80.1650 (b)(3), (e)(1)(iii)(A), and (g)(1)(iii)(A) revised..........7085
80.1652 (a)(7) introductory text revised; (a)(7)(v) and (vi) added
                                                                    7085
80.1656 (h) revised.................................................7085
80.1600--80.1667 (Subpart O) Removed; eff. 1-1-22..................78467
80 Appendixes A and B removed; eff. 1-1-22.........................78467

                                  2021

40 CFR
                                                                   86 FR
                                                                    Page
Chapter I
80 Determination....................................................3827
80 Notification....................................................37681
80.1451 (a)(1)(xiv)(E) and (F) added...............................17077
80.1464 (g)(7), (8), and (9) added.................................17078

                                  2022

40 CFR
                                                                   87 FR
                                                                    Page
Chapter I
Chapter I Actions on petitions.....................................25412
80.11 Added; eff. 8-30-22..........................................39659
80.1401 Amended; eff. 8-30-22......................................39659
80.1401 Amended....................................................73964
80.1402 Revised; eff. 8-30-22......................................39661
80.1405 (a)(11) revised; (a)(12) and (13) added; eff. 8-30-22......39661
80.1407 (f)(1) revised; eff. 8-30-22...............................39661
80.1408 (a)(2)(i)(B) and (ii)(B) amended; eff. 8-30-22.............39661
80.1415 (c)(2)(ii) and (iii) revised; eff. 8-30-22.................39661
80.1416 (b)(1)(ii) and (iii) revised; eff. 8-30-22.................39662
80.1426 (a)(4), (c)(8), (f)(4)(iv), (17) heading added; (c)(2) 
        heading and (3) heading removed; (f)(1), (3)(vi), (4) 
        heading, (5), (7)(v)(A), (B), (8)(ii)(B), (9)(ii), (15)(i) 
        introductory text, (16)(iii), (17)(i) introductory text, 
        (B)(1), and (2) revised; table 1, (f)(4)(i)(A)(1) amended; 
        eff. 8-30-22...............................................39662
80.1426 Table 1 amended............................................73965
80.1428 (b)(2) revised; eff. 8-30-22...............................39664
80.1429 (b)(9) introductory text revised; eff. 8-30-22.............39664
80.1430 (e)(2) revised; eff. 8-30-22...............................39665
80.1431 (a)(3) added; eff. 8-30-22.................................39665
80.1435 (a)(4) amended; eff. 8-30-22...............................39665
80.1444 Added......................................................54166

[[Page 302]]

80.1449 (a)(4)(iii) revised; eff. 8-30-22..........................39665
80.1450 (b) introductory text, (1) introductory text, (i), (ii) 
        introductory text, (iii), (iv)(A)(1), (2), (B)(3), (v)(B), 
        (C), (vii)(A) introductory text, (vii)(B) introductory 
        text, (viii) introductory text, (B)(1), (2), (3), (xii) 
        introductory text, (B), (C) introductory text, (xiii)(A), 
        (B) introductory text, (1), (5), (xv) introductory text, 
        (2)(i)(A), (B), (ii)(A), (B), (C), (iv), (d), (g)(5), (6), 
        (7), (9), (10)(ii), and (h)(1)(i) revised; (b)(1)(ii)(B), 
        (xvi), and (g) heading added; (g) introductory text, 
        (11)(ii), and (h)(2)(i) amended; eff. 8-30-22..............39665
80.1451 (a)(1) introductory text and (f) introductory text 
        revised; (a)(1)(xiv) removed; (f)(1), (2) heading, and (3) 
        heading added...............................................5702
80.1451 (b)(1)(ii)(K), (L), (T), (U) introductory text, (g)(1)(i), 
        (ii) introductory text, (A), (B), (C), (K), (L), (2)(vii) 
        and (viii) revised; (b)(1)(ii)(R) amended; (g)(2)(x), (j) 
        and (k) redesignated as (g)(2)(xi), (k) and (l); new 
        (g)(2)(x), new (j) added; eff. 8-30-22.....................39668
80.1452 (b)(16) redesignated as (b)(18); new (b)(16) and (17) 
        added; eff. 8-30-22........................................39669
80.1453 (f) added; eff. 8-30-22....................................39669
80.1454 (n) through (q) and (w) removed; (b)(3)(vii) through 
        (xii), (l)(3), (m)(10), and (s) through (v) redesignated 
        as (b)(3)(viii) through (xiii), (l)(4), (m)(11) and new 
        (n) through (q); new (b)(3)(vii), (k) heading, new (l)(3), 
        new (m)(10), new (s) through (v) added; (b)(6), (i), (j) 
        introductory text, (l) introductory text, (l)(1), new (n) 
        introductory text, (r) revised; (d)(4), (m) introductory 
        text amended; eff. 8-30-22.................................39670
80.1454 (a)(7) added...............................................54166
80.1460 (b)(5) and (6) revised; (b)(8), (k) added; eff. 8-30-22....39671
80.1461 (a)(1) and (2) revised; (e) added; eff. 8-30-22............39671
80.1463 (d) revised; eff. 8-30-22..................................39671
80.1464 (d) revised; (g) and (i) removed............................5702
80.1464 Amended; (a)(3)(ii), (b)(1)(v)(A), (3)(ii), (4)(i), (c) 
        introductory text, (2)(ii), (i)(1) heading, (i)(1)(i) and 
        (iii), (i)(2) heading, (i)(2)(i) and (ii) revised; (a)(7), 
        (b)(1)(v)(C), (4)(iii), (8), (c)(6), (7) and (h) added; 
        eff. 8-30-22...............................................39671
80.1468 Revised; eff. 8-30-22......................................39673
80.1469 Introductory text, (c)(1)(vi), (vii), (2)(i), (3)(i), (5), 
        (f)(1) and (2) revised; eff. 8-30-22.......................39673
80.1471 (b)(1), (4), (5), (6), (c), (f)(1) introductory text, 
        (ii), (g) revised; (e)(5) added; eff. 8-30-22..............39674
80.1472 (a)(4), (b)(3)(i) introductory text, (ii)(B), 
        (iii)revised; eff. 8-30-22.................................39674
80.1473 (f) amended; eff. 8-30-22..................................39674
80.1474 (b) amended; eff. 8-30-22..................................39674
80.1475 (a)(2), (d)(1), (4) amended; (d)(3) revised eff. 8-30-22 
                                                                   39674
80.1476 Added; eff. 8-30-22........................................39675
80.1477 Added; eff. 8-30-22........................................39675
80.1478 Added; eff. 8-30-22........................................39675

                                  2023

40 CFR
                                                                   88 FR
                                                                    Page
Chapter I
80.2 Revised.......................................................44555
80.3 Added.........................................................44562
80.4 Amended.......................................................44562
80.7 (a) introductory text revised; (b) and (c) amended............44562
80.8 Revised.......................................................44563
80.9 Revised.......................................................44563
80.12 Added........................................................44563
80.100--80.185 (Subpart E) Added...................................44564
80.140 Correction: (a) amended.....................................51239
80.1401 Revised....................................................44580
80.1402 (f) amended................................................44580
80.1405 (a) and (c) revised........................................44580
80.1406 Heading revised; (a) removed...............................44581
80.1407 (a)(1) through (4), (b), (d), (e), and (f)(5) amended......44581

[[Page 303]]

80.1415 (b)(2), (6), (c)(1), (2)(ii), and (5) amended; (b)(5) and 
        (7) revised................................................44581
80.1416 (b)(1)(vii), (2)(vii), (c)(4), and (d) amended.............44582
80.1426 (a)(1) introductory text, (b)(1), (c)(1), (2), (6), 
        (e)(1), (f)(1)(i), (3)(v), (vi), and (6) introductory text 
        revised; (a)(1)(iv), (c)(7), (d)(1) introductory text, 
        (f)(2)(i), (ii), (3)(i) through (iv), (4)(i)(A)(1), (B), 
        (iv), (5)(iv)(A), (B), (v), (vi), and (6)(i) amended; 
        Table 1 and Table 2 moved to end of section; (c)(3), Table 
        3 following (f)(3)(v), and Table 4 following (f)(3)(vi)(A) 
        removed....................................................44582
80.1426 Correction: (f)(3)(i) and (4)(ii) amended..................51239
80.1427 (a)(1) introductory text amended...........................44584
80.1428 (a) and (b) revised........................................44584
80.1429 Heading, (b)(1), and (10) revised; (a)(1), (2), (b) 
        introductory text, (6) introductory text, and (c) through 
        (e) amended; (b)(5) redesignated as (b)(5)(i); (b)(5)(ii) 
        added......................................................44585
80.1429 Correction: (b)(5) introductory text, (i), and (ii) 
        redesignated as (b)(5)(i), (i)(A), and (B).................51239
80.1430 (e)(2) amended.............................................44585
80.1431 (a)(1)(vi), (b) introductory text, and (c) introductory 
        text revised; (a)(1)(viii), (x), and (4) added; 
        (c)(7)(ii)(P) amended......................................44585
80.1434 (a)(1) and (5) revised; (a)(11) redesignated as (a)(13); 
        new (a)(11) and (12) added.................................44585
80.1435 (b)(1)(i), (ii), (2)(i) through (iv), and (iii) amended....44586
80.1441 (a)(1) revised; (a)(3) and (b)(3) removed; (e)(1), (2) 
        introductory text, (ii), (iii), and (g) amended............44586
80.1442 (a)(2), (b)(4), and (5) removed; (c)(1) revised............44586
80.1443 (a), (b), (e) introductory text, and (2) amended...........44586
80.1443 Correction: (a), (b), and (e) introductory text amended....51239
80.1449 (e) amended................................................44586
80.1450 (a), (b)(1)(v) introductory text, (E), (vi), (xi) 
        introductory text, (A), (B), (xii) introductory text, (2) 
        introductory text, (iii), (g)(11)(i) through (iii), and 
        (i)(1) amended; (b)(1) introductory text, (ii), (v)(E), 
        (xiii)(B) introductory text, (xv)(B), (d)(3), and 
        (g)(10)(ii) revised; (b)(1)(v)(F), (viii)(E), (xiii)(C), 
        and (2)(vii) added.........................................44586
80.1450 (b)(2)(ii) revised; (b)(2)(viii) through (x) added.........44587
80.1450 Correction: (b)(1) introductory text, (ii) introductory 
        text, (g)(11)(i) through (iii), and (i)(1) amended.........51239
80.1451 (a) introductory text, (1)(vi), (xiii), (b), (1)(ii)(O), 
        (T), (W), (c)(1)(iii)(K), (2)(i)(J), (L), (R), 
        (2)(ii)(D)(8), (10), (I), (e) introductory text, (h)(2), 
        (j)(1)(xvi), and (k) amended; (a)(1)(iii), (viii), (ix), 
        (xvi) through (xviii), (b)(1)(ii)(U) introductory text, 
        (g) introductory text, (1), (2) introductory text, and 
        (vii) through (xi) revised; (f)(4) and (g)(2)(xii) added 
                                                                   44588
80.1452 (b)(14), (18), (c)(14), and (d) amended....................44589
80.1453 (a) introductory text, (12) introductory text, and (v) 
        revised; (a)(12)(viii) and (f)(1)(vii) added; (d) and 
        (f)(1)(vi) amended.........................................44589
80.1453 Correction: (d) and (f)(1)(vi) amended.....................51240
80.1454 (d) introductory text removed; (d)(1) through (4) 
        redesignated as (d)(2) through (5); (c)(2)(vii), (3), new 
        (d)(1), and new (6) added; (a) introductory text, (b) 
        introductory text, (b)(8), (c)(1) introductory text, 
        (iii), (2) introductory text, new (d)(2)(ii), new 
        (4)(ii)(B), (h)(3)(iv), (v), (j)(1)(iii), (2)(iv), 
        (k)(1)(vii), (l)(4), (m)(11), (t), and (v) amended; 
        (b)(3)(ix), (xii), new (d)(5), (j) introductory text, 
        (k)(2), and (l) introductory text revised; (h)(6)(vi) and 
        (viii) removed.............................................44589

[[Page 304]]

80.1454 Correction: (d) introductory text revised..................51240
80.1455 Removed....................................................44590
80.1457 (b)(8) amended.............................................44590
80.1460 (a), (c)(2), (3), (d), and (g) amended; (l) added..........44591
80.1461 (f) added..................................................44591
80.1464 Introductory text, (a) introductory text, (b)(1)(iii), 
        (v)(B), (i)(1), and (2) amended............................44591
80.1466 (d)(2)(ii), (f)(1)(viii), (k)(4)(i). (o)(1), and (2)(ii) 
        amended; (h)(1) and (2) revised............................44591
80.1467 (c)(1)(viii) and (j)(1) amended; (e)(1) and (2) revised....44591
80.1468 Removed....................................................44592
80.1469 (a)(1)(i)(A), (F), (2)(B), (3)(i)(F), (b)(1)(i), (vi), 
        (2)(ii), (3)(v), (c)(1)(i), (3)(v), (4)(i), and (e)(1) 
        amended; (c)(4) heading and (d) revised; (c)(6) added......44592
80.1471 (b) introductory text, (1), and (4) through (6) revised; 
        (b)(2) amended.............................................44592
80.1473 (c)(1), (d)(1), and (e)(1) amended.........................44592
80.1474 (g) amended................................................44592
80.1478 (g)(1) amended.............................................44592
80.1479 Added......................................................44592

                                  2024

  (No regulations published from January 1, 2024, through July 1, 2024)


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