There are a number of federal and state gasoline specifications. The federal programs are year-round reformulated gasoline (RFG) and summer Phase II RVP (Reid vapor pressure). There are also seasonal state regulations, including summer RVP and winter oxygenated gasoline. In addition, a few states have year-round statewide gasoline programs, such as California RFG and oxygenated gasoline in Hawaii, Minnesota, Missouri and Oregon. Additionally, there are some local requirements, such as year-round Arizona Cleaner-burning Gasoline in Phoenix. In addition to federal diesel fuel standards, there are state diesel fuel specifications applicable in California, Phoenix, and eastern/central Texas.Minnesota, Oregon and Washington currently require both ethanol in gasoline and biodiesel in highway diesel fuel. Missouri currently requires ethanol in gasoline. Biodiesel is required in highway diesel by Pennsylvania. States that require ethanol in gasoline and/or biodiesel in highway diesel fuel with effective dates in the future include Louisiana, Massachusetts, and Montana. AFPM supports the orderly evolution and use of cleaner-burning fuels to reflect public health and environmental concerns and to provide adequate transportation fuel supplies to the motoring public. This can only be achieved, however, if energy and environmental policymaking is integrated and if the costs and benefits of new regulatory requirements are carefully weighed in the context of their impacts on energy supplies.
A map is provided to indicate the variability in gasoline specifications and the logistical challenge to the gasoline distribution system:
Individual state/local motor fuels regulations are summarized. A few state home heating oil sulfur standards are also included. Please contact Tim Hogan at THogan@afpm.org with your questions.
Select a state:
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