Thirteen U.S. Senators have banded together to urge EPA Administrator Michael Regan to set corn ethanol volumes above 15 billion gallons in the upcoming Renewable Fuel Standard (RFS) reset rule. The bipartisan group of lawmakers penned the letter to Regan while also asking for the restoration of year-round E15 sales. Ultimately, the group is asking for renewable fuels to be treated on the same level as electric vehicles.

The statutory RFS mandate expires in 2022, meaning a reset proposal from EPA should be expected in the coming weeks. The senators cited bolstered economic conditions and further carbon reduction with the use of biofuels.

Read more on the senators’ letter and potential upcoming RFS changes here.