President Biden has granted a waiver allowing for continued sales of E15 for summer 2023. The 15% ethanol blend was previously unable to be sold due to a provision in the Clean Air Act that shuts down sales starting June 1 for summer ozone concerns. EPA has cited ongoing market supply issues still at play from Russia’s invasion of Ukraine as the reason for the emergency waiver.

The agency said ongoing sales will “help protect Americans from fuel-supply crises by reducing reliance on imported fossil fuels.” On average, E15 is about 25 cents per gallon cheaper than E10. The biofuels industry has responded favorably to the waiver, as did Iowa Senator Joni Ernst, who shared the goal of eventually making year-round E15 the norm instead of reliant on a waiver.

Read more on ethanol sales here.