CFR /  Title 49  /  Part 350  /  Sec. 350.337 How may State laws and regulations governing motor carriers,still be considered compatible?

States are not required to adopt 49 CFR parts 398 and 399, subparts A through E and H of part 107, and Sec. Sec. 171.15 and 171.16, as applicable to either interstate or intrastate commerce.