On August 23, 2018, U.S. Senators Patty Murray (D-WA), Roy Blunt (R-MO), and 37 others submitted a bipartisan letter, asking the U.S. Environmental Protection Agency (EPA) to increase the renewable volume obligations under the Renewable Fuel Standard (RFS) as proposed by EPA in June 2018. Under the aforementioned proposed RFS, EPA would raise the advanced biofuel volume for 2019 to 4.88 billion gallons and the biomass-based diesel volume for 2020 to 2.43 billion gallons. The bipartisan group argues that although these increases may be promising, the potential of biodiesel is still taken too lightly. Not only does the biodiesel industry have prodigious growth potential, its expansion would significantly generate jobs in the U.S. In particular, the Senators emphasized the need to also recognize small refiners’ economic hardship exemptions during the 2019 compliance year.