EPA Fortifies Domestic Fuel Supply, Provides Americans with Relief at the Pump by Approving Nationwide E15 and Removing Boutique Fuel Markets for E10 - U.S. Environmental Protection Agency (.gov)

The EPA has approved nationwide use of E15 fuel and eliminated boutique fuel markets for E10 gasoline, actions the agency framed as strengthening domestic fuel supply and reducing pump prices for Americans. E15, which contains 15 percent ethanol compared to the standard 10 percent in E10, has previously been restricted or available only in certain regions due to compatibility concerns with older vehicles. The move consolidates fuel standards across the country, reducing the number of specialized fuel blends refiners must produce and potentially lowering costs by streamlining supply chains. The decision applies to all vehicles approved for E15 use, though owners of older models incompatible with higher ethanol blends would need to use alternative fuel options. The Trump administration has prioritized expanding ethanol's role in the fuel supply as part of its energy independence strategy.