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RFA Thanks Thune, Klobuchar for Bipartisan Adopt GREET Legislation

October 18, 2023

Congress, EPA, RFS


The Renewable Fuels Association today thanked Sens. John Thune (R-SD) and Amy Klobuchar (D-MN) for reintroducing legislation that would require the U.S. Environmental Protection Agency to apply the Argonne National Laboratory’s lifecycle modeling, GREET, to any fuel for which EPA has approved a pathway and deemed qualified for the Renewable Fuel Standard.


“This legislation would help ensure that renewable fuel regulations are based on sound science and current data, not speculative theories and obsolete information,” said RFA President and CEO Geoff Cooper. “Around the world, the Argonne National Laboratory GREET model is recognized as the gold standard for analyzing the lifecycle greenhouse gases impacts of renewable fuels like ethanol, and the model is regularly updated to reflect efficiency improvements and technological advancements in the fuel production process. We thank Senators Thune and Klobuchar for bringing scientific integrity and accuracy to the federal government’s regulatory actions on renewable fuels.”


Under the  Adopt Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) Act, EPA also would be required to update its modeling every five years or report to Congress to affirm its modeling is current or otherwise explain why no updates were made. GREET is widely recognized as the most up-to-date greenhouse gas lifecycle modeling program available, and RFA also encourages its use by the Department of Treasury as it completes its guidance on tax credits for sustainable aviation fuel, as authorized by the Inflation Reduction Act.