All Regulations

Part Regulation Guidance 390.1 - 390.7 Subpart A—General applicability and definitions   390.1 Purpose.   390.3 General applicability. Yes   390.5 Definitions. Yes   390.7 Rules of construction.   390.9 - 390.37 Subpart B—General requirements and information   390.9 State and local laws, effect on. Yes   390.11 Motor carrier to require observance of driver regulations.   390.13 Aiding or abetting violations.   390.15 Assistance in investigations and special studies. Yes   390.16 [Reserved]   390.17 Additional equipment and accessories.   390.19 Motor carrier identification report.   390.21 Marking of CMVs. Yes   390.23 Relief from regulations. Yes   390.25 Extension of relief from regulations—emergencies.   390.27 Locations of motor carrier safety service centers.   390.29 Location of records or documents.   390.31 Copies of records or documents. Yes   390.33 Commercial motor vehicles used for purposes other than defined.   390.35 Certificates, reports, and records: falsification, reproduction, or alteration.   390.37 Violation and penalty.   Subpart C Subpart C—[Reserved]