16 C.F.R. § 259.2
For the purposes of this part, the following definitions shall apply:
Alternative fueled vehicle. Any vehicle that qualifies as a covered vehicle under part 309 of this chapter.
Automobile. Any new passenger automobile, medium duty passenger vehicle, or light truck for which a fuel economy label is required under the Energy Policy and Conservation Act (42 U.S.C. 32901 et seq.) or rules promulgated thereunder, the equitable or legal title to which has never been transferred by a manufacturer, distributor, or dealer to an ultimate purchaser or lessee. For the purposes of this part, the terms "vehicle" and "car" have the same meaning as "automobile."
Dealer. Any person located in the United States or any territory thereof engaged in the sale or distribution of new automobiles to the ultimate purchaser.
EPA. The U.S. Environmental Protection Agency.
EPA city fuel economy estimate. The city fuel economy determined in accordance with the city test procedure as defined and determined pursuant to 40 CFR part 600 , subpart D.
EPA combined fuel economy estimate. The fuel economy value determined for a vehicle (or vehicles) by harmonically averaging the city and highway fuel economy values, weighted 0.55 and 0.45 respectively, determined pursuant to 40 CFR part 600, subpart D.
EPA driving range estimate. An estimate of the number of miles a vehicle will travel between refueling as defined and determined pursuant to 40 CFR part 600, subpart D.
EPA fuel economy estimate. The average number of miles traveled by an automobile per volume of fuel consumed (i.e., Miles-Per-Gallon ("MPG") rating) as calculated under 40 CFR part 600 , subpart D.
EPA highway fuel economy estimate. The highway fuel economy determined in accordance with the highway test procedure as defined and determined pursuant to 40 CFR part 600, subpart D.
Flexible fueled vehicle. Any motor vehicle (or motor vehicle engine) engineered and designed to be operated on any mixture of two or more different fuels.
Fuel.
Manufacturer. Any person engaged in the manufacturing or assembling of new automobiles, including any person importing new automobiles for resale and any person who acts for, and is under the control, of such manufacturer, assembler, or importer in connection with the distribution of new automobiles.
Model type. A unique combination of car line, basic engine, and transmission class as defined by 40 CFR part 600, subpart D.
Ultimate purchaser or lessee. The first person, other than a dealer purchasing in his or her capacity as a dealer, who in good faith purchases a new automobile for purposes other than resale or leases such vehicle for his or her personal use.
Vehicle configuration. The unique combination of automobile features, as defined in 40 CFR part 600 .
16 C.F.R. §259.2