The EPA is currently reviewing how much ethanol and other bio-fuels should be blended into the nation’s fuel supply.

US Senator Dick Durbin and others recently sent a letter to the EPA urging them to “chart a new course” with biofuels, even as electric cars start to come online. Durbin says homegrown fuels are a key part in the movement away from fossil fuels and now is not the time to use less of it.

The letter also encouraged EPA to further expand the year-round sale of E15. Illinois Senator Tammy Duckworth also signed the letter.