10 CFR Part 474 Petroleum Equivalent Fuel Economy Calculation Final Rule

The Petroleum Equivalency Factor express electric vehicle efficiency as equivalent-miles-per-gallon of gasoline for purposes of the EPA’s calculation of manufacturers’ compliance with NHTSA’s CAFE regulations. DOE is responsible for establishing the value of the PEF.  With this final rule, the PEF will be established for model years beginning in 2027. This document is an action issued by the Department of Energy. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.