The U.S. Environmental Protection Agency (EPA) this week issued a temporary emergency fuel waiver that will increase the nation’s gasoline supply and help lower prices for American families, ending the summertime fuel blend requirement and extending the existing waiver to allow lower-cost E15 fuel blends in the summer months through September 15.
Beginning on September 1, 2026, EPA’s waivers will allow the sale of E10, gasoline blended with 10 percent ethanol, at a higher Reid Vapor Pressure (RVP). This action will increase the domestic gasoline supply by hundreds of thousands of barrels per day by effectively ending the summer-blend gasoline requirement early. With the increase of domestic gasoline supply on the market, Americans can expect to see reduced gas prices.
Renewable Fuels Association President and CEO Geoff Cooper praised the action. “With no end in sight to higher fuel prices, the Trump administration has made the right move to increase the volume of E10 and E15 available to American drivers in the weeks ahead,” said Cooper. “When it comes to E15, we continue our call for federal legislation to make summer waivers of an obsolete regulation unnecessary by allowing the lower-carbon fuel to be permanently available during the summer months. E15 has been proven to reduce vehicular smog-forming emissions compared to both E10 and ethanol-free gasoline—and should therefore be more widely available.”
The action also waives state level controls in Texas, Arizona and California that extend beyond September 15. “As the EPA has done all summer, we will be monitoring gasoline supplies in those states and will be prepared to extend the waiver through a subsequent action as long as necessary to ensure adequate supplies of gasoline to consumers.”
EPA’s emergency fuel waivers have been in effect since May to remove fuel restrictions across the country, as they have for the past several years, to allow the sale of E15 fuel without interruption since Congress has been unable to pass legislation providing a permanent fix for the outdated restriction.












