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Significant momentum is building for E15 to become a dominant year-round fuel across the country. To understand this momentum, let’s take a look at where E15 stands now and how its market is shifting.
Q: What is the current status of year-round E15?
A: According to Growth Energy, 98% of the gasoline sold in the U.S. is E10 (gasoline containing up to 10% ethanol) compared to E15 (gasoline containing up to 15% ethanol). That notwithstanding, consumer demand based on pricepoint — and agricultural support — for E15 is growing.
All 50 states are permitted to sell E15, but it is only permanently allowed to be sold year-round for a select few. As of Oct. 25, 2025, the year-round sale of E15 is approved in California, and 8 Midwestern states — Illinois, Iowa, Minnesota, Missouri, Nebraska, Wisconsin, Ohio and South Dakota (though implementation is delayed until 2026 for these last two states). The U.S. EPA has been issuing emergency waivers since 2022, enabling the nationwide summertime sale of E15, and it may issue a nationwide emergency waiver for the 2026 summer months as long as supply conditions warrant it.
Q: What steps are being taken to help encourage the expansion of E15?
A: A federal bill that was introduced in July — the Ethanol for America Act of 2025 — aims to simplify both infrastructure and E15 label requirements. It is plausible that regional attempts to market the fuel as Unleaded 88 will give way to more nationally cohesive E15 marketing. Q: What are the challenges for E15 expansion? A: Marketers must demonstrate that fuel system equipment meets the various requirements of multiple regulatory bodies: U.S. EPA UST division, NFPA 30A fire code, CARB and other local authorities having jurisdiction. And from a commercial standpoint, those consumers who prefer premium gasoline do not have an E15 option.
Websites promoting E15: E15 for California, the Renewable Fuels Association and Growth Energy.
