Is a motor carrier transporting mail under contract for the U.S. Postal Service wholly within the boundaries of a single State subject to the minimum levels of financial responsibility requirements of part 387?
Part 387
Section § 387.3: Applicability.
Guidance Q&A
Question 6: Is a motor carrier transporting mail under contract for the U.S. Postal Service wholly within the boundaries of a single State subject to the minimum levels of financial responsibility requirements of part 387?
Guidance: Yes. The transportation of U.S. mail is considered to be interstate commerce because of the intermingling of inter-and intrastate mail on every vehicle.