[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR390.1] [Page 312] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 390_FEDERAL MOTOR CARRIER SAFETY REGULATIONS; GENERAL--Table of Contents Subpart A_General Applicability and Definitions Sec. 390.1 Purpose. Subpart A_General Applicability and Definitions Sec. 390.1 Purpose. 390.3 General applicability. 390.5 Definitions. 390.7 Rules of construction. Subpart B_General Requirements and Information 390.9 State and local laws, effect on. 390.11 Motor carrier to require observance of driver regulations. 390.13 Aiding or abetting violations. 390.15 Assistance in investigations and special studies. 390.16 [Reserved] 390.17 Additional equipment and accessories. 390.19 Motor carrier identification report. 390.21 Marking of CMVs. 390.23 Relief from regulations. 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. 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 [Reserved] Authority: 49 U.S.C. 508, 13301, 13902, 31133, 31136, 31502, 31504; Sec. 204, Pub. L. 104-88, 109 Stat. 803, 941 (49 U.S.C. 701 note); Sec. 114, Pub. L. 103-311, 108 Stat. 1673, 1677; Sec. 217, 229, Pub. L. 106- 159, 113 Stat. 1748, 1767; and 49 CFR 1.73. Source: 53 FR 18052, May 19, 1988, unless otherwise noted. Editorial Note: Nomenclature changes to part 390 appear at 66 FR 49873, Oct. 1, 2001. This part establishes general applicability, definitions, general requirements and information as they pertain to persons subject to this chapter.