49 CFR § 585.43
Applicability
November 18, 2020
This subpart applies to manufacturers of passenger cars, multipurpose passenger vehicles, trucks and buses with a GVWR of 4,536 or less. However, this subpart does not apply to manufacturers that produce fewer than 5,000 vehicles annually for sale in the United States.
[72 FR 62142, Nov. 2, 2007]