I 

118TH CONGRESS 

1ST SESSION H. R. 6152 

To require the Administrator of the Environmental Protection Agency to 

update the modeling used for lifecycle greenhouse gas assessments for 

approved fuel pathways under the Renewable Fuel Standard, and for 

other purposes. 

IN THE HOUSE OF REPRESENTATIVES 

NOVEMBER 1, 2023 

Mr. JOHNSON of South Dakota (for himself, Mr. SMITH of Nebraska, Mr. 

POCAN, Ms. CRAIG, Mrs. MILLER-MEEKS, Ms. BUDZINSKI, Mrs. HINSON, 

Mr. SORENSEN, Mr. ESTES, Mr. ALFORD, Mr. BOST, Mr. FINSTAD, Mr. 

FEENSTRA, Mr. NUNN of Iowa, Mr. BACON, Mr. LATURNER, and Mr. 

VAN ORDEN) introduced the following bill; which was referred to the 

Committee on Energy and Commerce 

A BILL 

To require the Administrator of the Environmental Protection Agency to update the modeling used for lifecycle 

greenhouse gas assessments for approved fuel pathways 

under the Renewable Fuel Standard, and for other purposes. 

1 Be it enacted by the Senate and House of Representa2 tives of the United States of America in Congress assembled, 


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•HR 6152 IH

1 SECTION 1. SHORT TITLE. 

2 This Act may be cited as the ‘‘Adopt the Greenhouse 

3 gases, Regulated Emissions, and Energy use in Transpor4 tation model Act’’ or the ‘‘Adopt GREET Act’’. 

5 SEC. 2. DEFINITION OF ADMINISTRATOR. 

6 In this Act, the term ‘‘Administrator’’ means the Ad7 ministrator of the Environmental Protection Agency. 

8 SEC. 3. LIFECYCLE GREENHOUSE GAS EMISSIONS FOR AP9 PROVED FUEL PATHWAYS. 

10 (a) IN GENERAL.—Subject to subsection (b), not 

11 later than 90 days after the date of enactment of this Act, 

12 and not later than every 5 years thereafter, the Adminis13 trator shall update the methodology used by the Environ14 mental Protection Agency in lifecycle analyses with respect 

15 to greenhouse gas emissions that result from a fuel path16 way to which a D code has been assigned pursuant to a 

17 petition described in section 80.1416 of title 40, Code of 

18 Federal Regulations (or successor regulations), that has 

19 been approved by the Administrator. 

20 (b) REQUIREMENTS.— 

21 (1) FIRST UPDATE.—In carrying out the first 

22 update required under subsection (a), the Adminis23 trator shall adopt the most recent Greenhouse gases, 

24 Regulated Emissions, and Energy use in Transpor25 tation model (commonly referred to as the ‘‘GREET 

26 model’’) developed by Argonne National Laboratory. 


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1 (2) SUBSEQUENT UPDATES.—In carrying out 

2 the second and each subsequent update required 

3 under subsection (a), the Administrator shall— 

4 (A) as necessary, adopt, review, or update 

5 a methodology determined to be appropriate by 

6 the Administrator; or 

7 (B) adopt the methodology described in 

8 paragraph (1). 

9 (3) ESTABLISHMENT OF FUEL PATHWAYS.— 

10 For any fuel pathway to which the Administrator as11 signs a D code pursuant to a petition described in 

12 section 80.1416 of title 40, Code of Federal Regula13 tions (or successor regulations), that is approved by 

14 the Administrator after the date of enactment of 

15 this Act, the Administrator shall, not later than 90 

16 days after the date on which the Administrator as17 signs that code, adopt the methodology described in 

18 paragraph (1) for purposes of modeling lifecycle 

19 analyses with respect to greenhouse gas emissions 

20 that result from that fuel pathway. 

21 (c) REPORT.—If the Administrator fails to carry out 

22 subsection (b)(2) before the applicable deadline described 

23 in subsection (a), the Administrator shall submit to the 

24 Committees on Agriculture, Nutrition, and Forestry, En25 ergy and Natural Resources, and Environment and Public 


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1 Works of the Senate and the Committees on Agriculture, 

2 Energy and Commerce, and Science, Space, and Tech3 nology of the House of Representatives a report describing 

4 the reasons for the failure to carry out subsection (b)(2), 

5 which may include a determination by the Administrator 

6 that the methodology adopted or updated in a previous 

7 update under subsection (a) remains the most current 

8 methodology based on available data, research, and tech9 nology. 

Æ 


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