Factors That Affect the Price of Gasoline

What are the factors that determine the price of gasoline? Gasoline price increases tend to emphasize the need for increased fuel supply or reduced fuel demand through the use of fuel-efficient vehicles, alternative fuels, and other strategies that re...

EPAct Requirements for State and Alternative Fuel Provider Fleets

What are the requirements for state and alternative fuel provider fleets under the Energy Policy Act of 1992 (EPAct 1992) and subsequent regulations and directives? EPAct 1992 mandates that certain state government and alternative fuel provider fleets...

EPAct Requirements for Federal Fleets

What are the requirements for federal fleets under the Energy Policy Act of 1992 (EPAct 1992) and subsequent regulations and directives? EPAct 1992, EPAct 2005, and National Defense Authorization Act (NDAA) of 2008 Under EPAct 1992, 75% of new covered...

Vehicle Emissions and Fuel Economy Standards

What are the federal emissions and fuel economy standards for current and future on-road vehicles? Have any related emissions and fuel regulations been passed recently? Corporate Average Fuel Economy (CAFE) standards and the associated greenhouse gas ...

Maps and Data About Alternative Transportation

Where can I find statistics, maps, and projections related to alternative fuels, advanced vehicles, and infrastructure? The Alternative Fuels Data Center (AFDC) Maps and Data website is a comprehensive resource for current and historical statistics re...

State Information About Alternative Transportation

Where can I find information specific to alternative fuel and advanced vehicles in my state? The Alternative Fuels Data Center (AFDC) State Information portal, one of the many resources found on the AFDC Tools page, is a great source for state-specifi...

Testing and Improving Vehicle Fuel Economy

How are vehicle fuel economy ratings determined? What factors impact fuel economy? Vehicle fuel economy is tested under controlled conditions using a standardized test procedure. Original equipment manufacturers (OEMs) are required by federal law to t...

Improving Transportation System Efficiency

What strategies are used to reduce vehicle miles traveled (VMT) and improve overall transportation system efficiency? VMT is a measure used in the transportation-planning community and elsewhere to report the number of miles that motor vehicles are dr...