On May 13, 2026, the U.S. House of Representatives passed H.R. 1346, the Nationwide Consumer and Fuel Retailer Choice Act of 2025, by a bipartisan vote of 218-203. Sponsored by Rep. Adrian Smith (R-NE), the bill now heads to the Senate. 

What the Bill Does

The legislation applies the existing Reid Vapor Pressure (RVP) waiver for E10 gasoline to blends up to 15% ethanol (E15). This removes seasonal summer restrictions tied to Clean Air Act smog concerns, allowing year-round nationwide sales (with state opt-out provisions). It also includes targeted reforms to the Renewable Fuel Standard, such as small refinery compliance credits. 

Current rules require annual EPA waivers for summer E15 sales, creating uncertainty. H.R. 1346 provides permanent regulatory certainty to encourage retailer adoption and infrastructure investment.

Benefits for Iowa and Its Farmers

Iowa leads the nation in corn production and ethanol output. Year-round E15 access is expected to increase demand for corn-based ethanol, delivering key advantages: 

•  Stronger Corn Markets and Farm Income: Expanded sales could boost domestic corn demand, supporting Iowa’s 87,000 family farms amid tight margins. Industry estimates suggest significant agricultural revenue gains nationally, with major benefits flowing to Midwest states like Iowa—potentially adding billions in economic activity. 

•  Rural Economic Support: Ethanol plants and the supply chain (transport, feed co-products, equipment) sustain thousands of jobs in rural communities. Higher production strengthens local tax bases and economic resilience. 

•  Lower Fuel Costs for Consumers: E15 is often 10–50 cents per gallon cheaper than E10, providing direct savings for Iowa drivers and households. 

•  Energy Security: Greater use of domestic renewable fuel reduces oil import reliance and supports energy independence.

All four Iowa U.S. House members voted in favor. State leaders, the Iowa Corn Growers Association, and Iowa Renewable Fuels Association hailed the vote as a win for farmers, rural economies, affordable fuel, and cleaner air options. 

Context and Outlook

Proponents view it as a consumer and farmer victory. Critics, including some refiners, cite potential compliance costs, slight mileage reductions, and impacts on other fuels like biodiesel. Success in the Senate (requiring 60 votes) is uncertain amid opposition from oil-state interests. 

If enacted and signed by President Trump (who has expressed support), the bill would mark a long-sought policy win after years of temporary waivers. For Iowa, it offers renewed market stability in a shifting energy landscape.