{"data":{"id":"us/49-cfr-393.82","jurisdiction":"us","citation":"49 CFR 393.82","heading":"Speedometer.","body":"Each bus, truck, and truck-tractor must be equipped with a speedometer indicating vehicle speed in miles per hour and/or kilometers per hour. The speedometer must be accurate to within plus or minus 8 km/hr (5 mph) at a speed of 80 km/hr (50 mph).","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 393—PARTS AND ACCESSORIES NECESSARY FOR SAFE OPERATION","Subpart G—Miscellaneous Parts and Accessories"],"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":"fcd98b4810ca57bf4393eccb3e64d48866a349a06162d48a9f7777da23ccc080","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-393.81","next":"us/49-cfr-393.83"},"notice":"GroundRules: Original legal text. Not legal advice."}