S1958-118

1. Short title This Act may be cited as the Sustainable Aviation Fuels Accuracy Act of 2023.

2. Standard, uniform definition of sustainable aviation fuel Not later than 60 days after the date of enactment of this section, the Administrator of the Federal Aviation Administration shall issue or revise regulations as necessary to provide that the definition of sustainable aviation fuel specified in subsection (b) applies to— all aircraft flown to, from, or within the United States; and all programs established, administered, or overseen by the Federal Aviation Administration. For purposes of subsection (a), the term sustainable aviation fuel means liquid fuel, the portion of which is not kerosene, which— meets the requirements of— ASTM International Standard D7566; or the Fischer Tropsch provisions of ASTM International Standard D1655, Annex A1; is not derived from coprocessing an applicable material (or materials derived from an applicable material) with a feedstock which is not biomass; is not derived from palm fatty acid distillates or petroleum; and has been certified in accordance with paragraph (2)(C) as having a lifecycle greenhouse gas emissions reduction percentage of at least 50 percent. For purposes of paragraph (1): The term applicable material means— monoglycerides, diglycerides, and triglycerides, free fatty acids, and fatty acid esters. The term biomass has the meaning given such term in section 45K(c)(3) of the Internal Revenue Code of 1986. The term lifecycle greenhouse gas emissions reduction percentage means, with respect to any sustainable aviation fuel, the percentage reduction in lifecycle greenhouse gas emissions achieved by such fuel as compared with petroleum-based jet fuel, as defined in accordance with— the most recent Carbon Offsetting and Reduction Scheme for International Aviation which has been adopted by the International Civil Aviation Organization with the agreement of the United States; or the most recent determinations under the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model developed by Argonne National Laboratory or any successor model developed by Argonne National Laboratory.