Home › CFR › Title 10 › Part 47410 CFR Part 474 — Electric and Hybrid Vehicle Research, Development, and Demonstration Program; Petroleum-Equivalent Fuel Economy Calculation§ 474.1— Purpose and Scope.§ 474.2— Definitions.§ 474.3— Petroleum-equivalent fuel economy calculation.§ 474.4— Test procedures.§ 474.5— Review and Update.