§ 600.001 General applicability.

(a) The provisions of this part apply to 2008 and later model year automobiles that are not medium duty passenger vehicles, and to 2011 and later model year automobiles including medium-duty passenger vehicles. The test procedures in subpart B of this part also apply to 2014 and later heavy-duty vehicles subject to standards under 40 CFR part 86, subpart S.

(b) The provisions of subparts A, D, and F of this part are optional through the 2011 model year in the following cases:

(1) Manufacturers that produce only electric vehicles are exempt from the requirements of this subpart, except with regard to the requirements in those sections pertaining specifically to electric vehicles.