Months of strong, year-round sales of E15 hit a potential roadblock recently when the D.C. Circuit Court of Appeals struck down the U.S. Environmental Protection Agency’s (EPA) rule granting E15 the same volatility waiver that has applied to E10 blends for decades. 

“We’re very disappointed by this decision to strike down EPA’s rule that makes it easier to sell E15 year-round,” said Iowa Renewable Fuels Association (IRFA) Executive Director Monte Shaw. “There’s no scientific or environmentally sound reason to erect arbitrary barriers to the sale of E15 in the...