The U.S. Environmental Protection Agency (EPA) announced on April 28, 2023, that it issued an emergency fuel waiver to allow E15 gasoline -- gasoline blended with 15 percent ethanol -- to be sold “during the summer driving season.” EPA states that this action will provide relief from ongoing market supply issues “created by Russia’s unprovoked war in Ukraine by increasing fuel supply and offering consumers more choices at the pump.” According to EPA, the waiver will help protect Americans from fuel supply crises by reducing reliance on imported fossil fuels, building U.S. energy independence, and supporting American agriculture and manufacturing. EPA notes that current estimates indicate that, on average, E15 is about 25 cents a gallon cheaper than E10.