On February 6, 2020, EPA issued its final rule setting 2020 renewable fuel percentage standards under its Renewable Fuel Standard (RFS) Program. The final rule established the annual percentage standards for cellulosic biofuel, biomass-based diesel, advanced biofuel, and total renewable fuel that apply to gasoline and diesel transportation fuel produced or imported in 2020. The volume requirements set are below the statutory volume targets. In addition to the 2020 annual percentage standards, the final rule establishes the applicable volume of biomass-based diesel for 2021. Other changes include the percentage standard calculations to account for fuel volumes exempted from the renewable volume obligation (RVO). Effective on April 6, 2020, this rule finalizes regulatory changes to the RFS Program, including clarifications of existing regulations, new pathways, and flexibilities for regulated parties.