CAFE and Greenhouse Gas Standards
Frequently Asked Questions
NHTSA [the National Highway Traffic Safety Administration] derives its authority to regulate the fuel economy of motor vehicles from the Energy Policy and Conservation Act of 1975 (EPCA; P.L. 94-163) as amended by the Energy Independence and Security Act [EISA] of 2007. The origin of federal fuel economy standards dates to the mid1970s. The oil embargo of 1973-1974 imposed by Arab members of the Organization of the Petroleum Exporting Countries (OPEC) and the subsequent tripling …
