585.74—Definitions.
(b)
Bus, gross vehicle weight rating or GVWR, multipurpose passenger vehicle, passenger car, and truck are used as defined in § 571.3 of this chapter.
(c)
Production year means the 12-month period between September 1 of one year and August 31 of the following year, inclusive.
(d)
Limited line manufacturer means a manufacturer that sells three or fewer carlines, as that term is defined in 49 CFR 583.4, in the United States during a production year.