§ 600.002 Definitions.
The following definitions apply throughout this part:
3-bag FTP means the Federal Test Procedure specified in part 86 of this chapter, with three sampling portions consisting of the cold-start transient (“Bag 1”), stabilized (“Bag 2”), and hot-start transient phases (“Bag 3”).
4-bag FTP means the 3-bag FTP, with the addition of a sampling portion for the hot-start stabilized phase (“Bag 4”).
5-cycle means the FTP, HFET, US06, SC03 and cold temperature FTP tests as described in subparts B and C of this part.
Administrator means the Administrator of the Environmental Protection Agency or his authorized representative.
Alcohol means a mixture containing 85 percent or more by volume methanol, denatured ethanol, or other alcohols, in any combination.
Alcohol-fueled automobile means an automobile designed to operate on alcohol, but not on gasoline.
Alcohol dual fuel automobile means an automobile:
(1) Which is designed to operate on alcohol and on gasoline or diesel fuel; and
(2) Which provides equal or greater energy efficiency as calculated in accordance with § 600.510-08(g)(1) or § 600.510-12(g)(1) while operating on alcohol as it does while operating on gasoline or diesel fuel; and
(3) Which, in the case of passenger automobiles, meets or exceeds the minimum driving range established by the Department of Transportation in 49 CFR part 538.
Alternative fuel means any of the following:
(1) Methanol.
(2) Denatured ethanol.
(3) Other alcohols.
(4) A mixture containing at least 85 percent (or an alternative percentage as specified by the Secretary of Transportation under 49 U.S.C. 32901(b)) of methanol, denatured ethanol, and other alcohols by volume with gasoline or other fuels.
(5) Natural gas.
(6) Liquefied petroleum gas.
(7) Hydrogen.
(8) Coal derived liquid fuels.
(9) Fuels (except alcohol) derived from biological materials.
(10) Electricity (including electricity from solar energy).
(11) Any other fuel the Secretary of Transportation prescribes by regulation under 49 U.S.C. 32901(a)(1)(K).
Automobile has the meaning given by the Department of Transportation at 49 CFR 523.3. This includes “passenger automobiles” and “non-passenger automobiles” (or “light trucks”).
Auxiliary emission control device (AECD) means an element of design as defined in § 86.1803 of this chapter.
Average fuel economy means the unique fuel economy value as computed under § 600.510 for a specific class of automobiles produced by a manufacturer that is subject to average fuel economy standards.
Axle ratio means the number of times the input shaft to the differential (or equivalent) turns for each turn of the drive wheels.
Base level means a unique combination of basic engine, inertia weight class and transmission class.
Base tire means the tire size specified as standard equipment by the manufacturer on each unique combination of a vehicle's footprint and model type. Standard equipment is defined in 40 CFR 86.1803-01.
Base vehicle means the lowest priced version of each body style that makes up a car line.
Basic engine means a unique combination of manufacturer, engine displacement, number of cylinders, fuel system (e.g., type of fuel injection), catalyst usage, and other engine and emission control system characteristics specified by the Administrator. For electric vehicles, basic engine means a unique combination of manufacturer and electric traction motor, motor controller, battery configuration, electrical charging system, energy storage device, and other components as specified by the Administrator.
Battery configuration means the electrochemical type, voltage, capacity (in Watt-hours at the c/3 rate), and physical characteristics of the battery used as the tractive energy device.
Body style means a level of commonality in vehicle construction as defined by number of doors and roof treatment (e.g., sedan, convertible, fastback, hatchback) and number of seats (i.e., front, second, or third seat) requiring seat belts pursuant to National Highway Traffic Safety Administration safety regulations in 49 CFR part 571. Station wagons and light trucks are identified as car lines.
Calibration means the set of specifications, including tolerances, unique to a particular design, version of application of a component, or component assembly capable of functionally describing its operation over its working range.
Carbon-related exhaust emissions (CREE) means the summation of the carbon-containing constituents of the exhaust emissions, with each constituent adjusted by a coefficient representing the carbon weight fraction of each constituent relative to the CO2 carbon weight fraction, as specified in § 600.113. For example, carbon-related exhaust emissions (weighted 55 percent city and 45 percent highway) are used to demonstrate compliance with fleet average CO2 emission standards outlined in § 86.1818 of this chapter.