President Donald Trump is expected to announce he is lifting a federal ban on summer sales of high-ethanol blends during a trip to Iowa on Tuesday.
A senior administration official said Monday that the EPA will publish a rule in coming days to allow high-ethanol blends as part of a package of proposed changes to the ethanol mandate. The official spoke on condition of anonymity ahead of Trump’s announcement.
The change would allow year-round sales of gasoline blends with up to 15 percent ethanol. Gasoline typically contains 10 percent ethanol.
The EPA currently bans the high-ethanol blend, called E15, during the summer because of concerns that it contributes to smog on hot days, a claim ethanol industry advocates say is unfounded.