{"data":{"id":"us/49-cfr-397.3","jurisdiction":"us","citation":"49 CFR 397.3","heading":"State and local laws, ordinances, and regulations.","body":"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.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER III—FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER B—FEDERAL MOTOR CARRIER SAFETY REGULATIONS","PART 397—TRANSPORTATION OF HAZARDOUS MATERIALS; DRIVING AND PARKING RULES","Subpart A—General"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"34c60f0f011110ea30c1b780db7ba1092303a6260ae752dadf1ca6214683a2f8","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-397.2","next":"us/49-cfr-397.5"},"notice":"GroundRules: Original legal text. Not legal advice."}