Fuels and Fuel Additives
Fuel Programs Key Topics
Renewable and Alternative Fuels: Information about transportation fuels such as gaseous fuels, alcohols, and electricity, and about fuels derived from renewable sources.
Gasoline: Information about EPA's gasoline regulations, including the Tier 2 Gasoline Sulfur program, the Mobile Source Air Toxics rule, Reformulated Gasoline (RFG) regulations, and volatility requirements.
Diesel: Information about diesel fuel programs including regulations that significantly reduce the sulfur content of diesel fuel.
State Fuel Programs: Information about fuel programs that are managed by individual states, including low RVP (fuel volatility) programs, and winter oxygenated fuel programs.
Emergency Fuel Waivers: Information about how states can request a temporary waiver of EPA's fuel requirements during emergencies.
If you have questions or request information, please contact the appropriate support or help line found on the Support & Help page.
Please visit EPA's Transportation and Air Quality web-based repository of mobile source documents, Document Index System (DIS). This searchable repository contains regulations, Federal Register notices, policy letters, and guidance documents.
Please visit our Related Links page for other fuel related information within EPA, other U.S. Agencies, and other fuel related websites.