[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: 49CFR397.3] [Page 476] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 397_TRANSPORTATION OF HAZARDOUS MATERIALS; DRIVING AND PARKING RULES--Table of Contents Subpart A_General Sec. 397.3 State and local laws, ordinances, and regulations. Every motor vehicle containing hazardous materials must be driven and parked in compliance with the laws, ordinances, and regulations of the jurisdiction in which it is being operated, unless they are at variance with specific regulations of the Department of Transportation which are applicable to the operation of that vehicle and which impose a more stringent obligation or restraint.