Reinstatement of the Gasoline Volatility Waiver for Ohio
Summary
On January 28, 2026, EPA announced its approval of a request from the Governor of Ohio on October 31, 2025, to reinstate the 1-psi waiver for gasoline-ethanol blends containing 10 percent ethanol (E10). The effective date of the reinstatement of the 1-psi waiver in Ohio is April 28, 2026. This means that E10 gasoline sold in Ohio can have a finished fuel volatility of 10.0 psi in the summer months. Reinstatement of the 1-psi waiver in Ohio eliminates the need for refiners and distributors to provide a different gasoline blendstock for use in Ohio in the summer months as compared to other surrounding states. Reinstatement of the 1-psi waiver in Ohio does not impact the regulatory requirements for other Midwest states that limit the volatility of E10 in those states.