Transportation Fuels
State Motor Fuels Specification
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, and Missouri. Additionally, there are some local requirements, such as year-round Arizona Cleaner-burning Gasoline in Phoenix and winter Nevada Cleaner-burning Gasoline in Las Vegas.
In addition, there are federal diesel fuel standards, as well as state diesel fuel specifications that are applicable in California, Minnesota, Phoenix, and eastern/central Texas.
Minnesota and Portland, Oregon currently require both ethanol in gasoline and biodiesel in highway diesel fuel. Hawaii, Missouri, and Oregon currently require ethanol in gasoline. States that require ethanol in gasoline and/or biodiesel in highway diesel fuel with effective dates in the future include Florida, Louisiana, Massachusetts, Montana, New Mexico, Pennsylvania and Washington.
NPRA supports the orderly evolution and use of cleaner-burning fuels to reflect public health and environmental concerns and to provide adequate gasoline 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.
Map
A map is provided to indicate the variability in gasoline specifications and the logistical challenge to the gasoline distribution system:
- Click here to view map (pdf file)
U.S. EPA information
- Summary of Federal and State Summer RVP Standards for Conventional Gasoline
- State Winter Oxygenated Fuel Programs (pdf)
- Federal RFG Program Areas
NPRA's compilation
Individual state/local motor fuels regulations are summarized. Please contact Tim Hogan at THogan@npra.org with your questions.
Select a state: