US EPA says it, in consultation with DOE, expands gasoline supply to lower prices at the pump

• Today, epa in consultation with DOE and in accordance with the Clean Air Act (CAA), issued a temporary emergency fuel waiver that will increase the nation's gasoline supply and help lower prices for American families.
• 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. As required by the CAA, EPA and DOE evaluated the current situation and determined that granting the waiver was in the public interest.

Emergency fuel waivers of this kind have historically been deployed after supply shocks such as refinery outages, pipeline disruptions, or storm damage along the Gulf Coast, where the Clean Air Act's summer RVP limits are the binding constraint on what can be blended and sold. The mechanism is well established: relaxing RVP limits effectively ends the summer-grade specification early, letting higher-volatility components and more ethanol-blended gasoline reach the market, which widens the fungible supply pool and tends to compress gasoline cracks and the spread between summer and winter grades. Waivers framed as a price measure rather than a response to a discrete outage are less common and signal that the supply constraint is judged to be structural, or at least politically pressing, rather than episodic. The prior form of both agencies matters here: such actions have typically been temporary, tightly dated, and renewed or allowed to lapse depending on market conditions, and they carry a statutory public-interest justification requirement. The follow-ons worth noting are the effective window relative to the stated start, any state-level opt-outs or delays, the response in RBOB futures and regional cash differentials, and the effect on ethanol blending economics, since higher E10 penetration at a relaxed RVP shifts demand within the blending complex. The stated start date sits well in the future, which makes this a policy commitment rather than an immediate supply event.