FMSCA Regulation 350.345
350.345 How does a State apply for additional variances from the FMCSRs?
Any State may apply to the Administrator for a variance from the FMCSRs for intrastate commerce. The variance will be granted only if the State satisfactorily demonstrates that the State law, regulation or enforcement practice:
(a) Achieves substantially the same purpose as the similar Federal regulation.
(b) Does not apply to interstate commerce.
(c) Is not likely to have an adverse impact on safety.
