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Basic Information

Gasoline Supply and Prices:

Why are gas prices rising?

For the past 20 years, the United States has benefitted from declining energy prices. With cheaper gasoline readily available, Americans renewed their enthusiasm for larger, less fuel efficient vehicles. Consequently, today the fuel economy of the vehicle fleet is the lowest in 20 years. Refiners have made business decisions not to build new refineries in the U.S.  Instead, demand was met over the past 20 years by expanding capacity of existing refineries. As refineries reach maximum capacity, refiners and marketers often choose to import gasoline and other refined products. Today, Americans now confront a situation where supply and demand are in a delicate balance.

The following major factors contribute to rising fuel prices:

Bottom line: the above factors have caused all gas prices -conventional as well as RFG- to increase in every region of the country.

EPA's Tier 2 gasoline standard is the only new federal clean fuel regulation affecting gasoline prices this year (2004). EPA estimates that the costs to refiners for this program is only about a penny a gallon today, and will still cost less than 2 cents per gallon when the program is fully phased in, in 2006. Additional clean fuel programs have also been implemented by EPA, and State and local governments, with minimal impacts on retail prices.

Prices are rising in areas that do not use clean fuels as well as those that do. While federal, state and local environmental requirements are secondary factors in the supply/price equation, they provide important improvements in public health and ecosystem protection.

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What are the benefits of clean fuel programs?

Federal Reformulated Gasoline Program
To promote cleaner motor vehicles and cleaner fuels, the 1990 Clean Air Act Amendments established the Federal Reformulated Gasoline (RFG) program. In 1995, this program introduced cleaner fuels meeting more stringent emission performance requirements. The 1990 Clean Air Act Amendments also required that RFG contain at least 2 percent oxygen by weight. The addition of oxygenates causes gasoline to burn cleaner and more efficiently, thereby reducing toxic air pollutants, carbon monoxide, and smog-forming emissions.

The RFG program initially was mandated only for the nine ‘severe' metropolitan areas in the country with the worst smog: Los Angeles, San Diego, Chicago, Houston, Milwaukee, Baltimore, Philadelphia, Hartford, and New York City. Since then, five other areas have been classified with ‘severe' air quality: Baton Rouge, Atlanta, Sacramento, San Joaquin Valley, and Washington, DC. Seventeen states and the District of Columbia currently use RFG, either because of Clean Air Act requirements, or on a voluntary basis to achieve air quality standards.

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