DES MOINES, Iowa (AP) — Iowa will become the first U.S. state to require that gas stations have pumps selling fuel with at least 15% ethanol. Gov. Kim Reynolds proposed the bill that received final legislative approval Tuesday (April 26, 2022), and when she signs it into law, the measure will boost corn growers and the ethanol industry. Ethanol production consumes roughly half the state’s corn crop, and Iowa leads the nation in corn and ethanol production. Most gas sold in nationwide is blended with 10% ethanol. The bill includes exemptions for gas stations selling less than 300,000 gallons of fuel a year, and stations with old storage tanks can get waivers.