Regulating and testing fuel economy plays an important role in deterring air pollution throughout the Unites Statesâ€™ streets and communities. EPAâ€™s Fuel Economy pages provide information on current standards and how federal agencies work to enforce those laws, testing for national Corporate Average Fuel Economy or CAFE standards, and what you can do to reduce your own vehicle emissions.
Follow the links below for more information:
- Basic Information: Learn how EPA determines fuel economy estimates and what the data are used for.
- Regulations and Standards: Find the regulations and laws that govern fuel economy testing and reporting, and how federal agencies work to enforce those laws.
- MPG: Label Values vs. Corporate Average Fuel Economy (CAFE) Values (PDF) (1 pg, 76K, EPA-420-B-14-015, March 2014, About PDF)
- Data and Testing: Learn how vehicles are tested and find out how you can get EPA's fuel economy test data.
- What You Can Do: Learn how you can improve fuel economy and emissions from your current vehicle.
- Frequent Questions on Fuel Economy Testing and Labeling (PDF) (6 pp, 196K, EPA-420-F-14-015, April 2014, About PDF)
Related InformationThe EPA manages the collection of fuel economy and related emissions data and provides data to a number of important federal programs:
- The Fuel Economy and Environment Label required on all new cars
- The annual Fuel Economy Guide jointly produced by EPA and the Department of Energy
- The EPA greenhouse gas emission standards for cars and light trucks
- The Corporate Average Fuel Economy (CAFE) program overseen by the Department of Transportation
- The gas guzzler taxes program managed by Internal Revenue Service