CFR›Title 49›Subtitle B›Chapter III›Part 391›Subpart A ContainsSections 391.1–391.2CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—General Sections 391.1 § 391.1 Scope of the rules in this part; additional qualifications; duties of carrier-drivers. 391.2 § 391.2 General exceptions. Next Appendix A to Part 391 Appendix A to Part 391—Medical Advisory Criteria