49 CFR § 570.53
Applicability
November 18, 2020
This part does not in itself impose requirements on any person. It is intended to be implemented by States through the highway safety program standards issued under the Highway Safety Act (23 U.S.C. 402) with respect to inspection of motor vehicles with gross vehicle weight rating greater than 10,000 pounds, except mobile structure trailers.
[39 FR 28980, Aug. 13, 1974]