The Environmental Protection Agency has announced it will let a higher blend of ethanol be sold this summer in Iowa and seven other Midwestern states. The sale of fuel with a 15% blend of ethanol has been prohibited nationwide in the summer due to concerns it could worsen smog levels.

EPA Administrator Lee Zeldin said the agency would maintain the agreed-upon date of April 28 to make the fuel available in eight states. The governors of Illinois, Iowa, Minnesota, Missouri, Nebraska, Ohio, South Dakota and Wisconsin had requested waivers ...