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Fuels and Fuel Additives

State Fuels (Boutique)

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The federal Clean Air Act establishes national fuel emission standards, but also allows states to adopt unique fuel programs to meet local air quality needs. The combination of federal and state fuel programs is intended to balance the importance of standard fuel quality across the country with the need for sufficient flexibility to address specific air quality issues at the state or local level.

State fuel programs are sometimes referred to as "boutique." Twelve states have adopted their own clean fuel programs for part or all of the state. Most of these programs set lower gasoline volatility requirements than the federal standards, and most are effective for only part of the year. For more information on the twelve programs, please view the list of states with boutique fuel programs.

List of states with boutique fuel programs

Impact of state fuel programs: EPA and the Department of Energy issued a joint report to Congress regarding the impact of state fuel programs on air quality, fuel availability, and fuel costs. Report to Congress (PDF) (34 pp, 1M, EPA420-R-06-901, December 2006)

EPAct Section 1541(b) - Boutique Fuels in State Implementation Plans (SIPs) EPA issued a Federal Register notice listing fuels approved in State Implementation Plans (SIPs) as of September 1, 2004. The list includes the states and Petroleum Administration for Defense Districts (PADDs) where the fuels are used. Issuance of this list is required by the Energy Policy Act of 2005.

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.

This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
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