Body part
Body part means exterior parts such as hoods, fenders, doors, roof, quarter panels, decklids, tail gates, and cargo beds. Body parts were traditionally made of sheet metal, but now are also made of plastic. Bumpers, fascia, and cladding are not body parts.
Source
40 CFR § 63.3176
Scoping language
Terms used in this subpart are defined in the CAA, in the General Provisions of this part, and in this section as follows: