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Code · BILL · 117th Congress · S. 4621 (Introduced in Senate) — To promote low-carbon, high-octane fuels, to protect public health, and to improve vehicle efficiency and performance... · Sec. 8

Sec. 8. Clean octane standard

571 words·~3 min read·/bill/117/s/4621/is/section-8

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Section 211 of the Clean Air Act ( 42 U.S.C. 7545 ) is amended— in subsection (d)— in paragraph (1), by striking or
(o)each place it appears and inserting (o), or
(w); and in paragraph (2), by striking and
(o)each place it appears and inserting (o), and
(w); and by adding at the end the following: In this subsection: The term baseline lifecycle greenhouse gas emissions means the average lifecycle greenhouse gas emissions, as determined by the Administrator, in consultation with the Director of the Argonne National Laboratory, for unblended gasoline sold or distributed as transportation fuel in 2022. The term lifecycle greenhouse gas emissions means the aggregate quantity of greenhouse gas emissions as determined by the Secretary of Energy using the version of the Argonne National Laboratory Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model in effect as of the date of enactment of the Next Generation Fuels Act of 2022 . The term research octane number has the meaning given the term in section 201 of the Petroleum Marketing Practices Act ( 15 U.S.C. 2821 ). Effective beginning on January 1, 2026, it shall be unlawful for refiners or importers to sell motor vehicle gasoline that contains, on an average annual basis, an aromatic hydrocarbon concentration in excess of 17.5 percent by volume. Effective beginning on January 1, 2026, it shall be unlawful for refiners or importers to sell motor vehicle gasoline that contains an aromatic hydrocarbon concentration in excess of 30 percent by volume. Effective beginning on January 1, 2031, it shall be unlawful for refiners or importers to sell motor vehicle gasoline that contains an aromatic hydrocarbon content in excess of 25 percent by volume. For purposes of compliance with this paragraph, the aromatics volume of motor vehicle gasoline produced as blendstock for oxygenate blending may be adjusted based on the specified type and amount of oxygenate required to be added downstream. Any adjustment under clause
(i)shall be made through— the preparation of a hand blend containing oxygenate; or any other method deemed acceptable to the Administrator. The Administrator shall promulgate regulations to implement this paragraph. Regulations promulgated under clause
(i)shall allow for the generation of tradeable credits to meet the requirement of subparagraph (A), but any credits shall expire after not more than 5 years. Not later than January 1, 2026, the Administrator shall promulgate final regulations under clause (i). Effective beginning on January 1, 2026, no refiner or importer shall introduce into commerce motor vehicle gasoline with a research octane number of 95 or higher except through the use of a fuel additive that has average lifecycle greenhouse gas emissions that (as determined by the Secretary of Energy using the version of the Argonne National Laboratory Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model in effect as of the date of enactment of the Next Generation Fuels Act of 2022 ) are at least 40 percent less than baseline lifecycle greenhouse gas emissions. The Administrator shall promulgate regulations to implement this paragraph. Regulations promulgated under clause
(i)shall— determine the baseline lifecycle greenhouse gas emissions for purposes of this paragraph; determine the average lifecycle greenhouse gas emissions of sources of octane value for purposes of this paragraph; and ensure that the requirements of this paragraph are met. Not later than January 1, 2025, the Administrator shall promulgate final regulations under clause (i). .
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Sec. 8
Clean octane standard
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