Next Generation Fuels Act of 2023

HR 2434, the Next Generation Fuels Act of 2023, requires automobile manufacturers to design vehicles for model years 2028 and later to operate with gasoline containing up to 25% ethanol (2028-2032) or 30% ethanol (2033+) and to be compatible with gasoline having a research octane number of 95 or higher (2028-2032) or 98 or higher (2033+). Fuel retailers must install equipment to ensure compatibility with these high-octane, high-ethanol fuels, while refiners must meet specific requirements for gasoline aromatics content and low-carbon fuel standards. The bill mandates labeling requirements to inform consumers about fuel compatibility and potential consequences of using lower-octane fuels. EPA must determine nationwide availability of 98 octane gasoline by 2031 before the full requirements take effect in 2033, affecting automobile manufacturers, fuel retailers, and refiners through changes in vehicle design, fuel composition, and consumer information standards.