Original manufacturer

Original manufacturer means the entity responsible for the original manufacture or assembly of a motor vehicle, and does not include any person (other than such entity) who converts the motor vehicle after its manufacture to conformance with the Federal motor vehicle safety standards.

Source

49 CFR § 591.4

Scoping language

All terms used in this part that are defined in 49 U.S.C. 30102, 32101, 32301, 32502, and 33101 are used as defined in those sections except that the term model year is used as defined in part 593 of this chapter.