An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Renewable Fuel Standard Program

Regulations and Volume Standards for Renewable Fuel Standards

Regulations for the Renewable Fuel Standard (RFS) program are under 40 CFR Part 80: Regulation of Fuels and Fuel Additives, Subparts K and M. The RFS rule promulgated in 2007, occasionally known as “RFS1”, is Subpart K; “RFS2”, promulgated in 2010, is Subpart M.

Rulemakings under the RFS program are listed below.