49 CFR 393.82 - Speedometer.
Title 49: TransportationSubtitle B: Other Regulations Relating to Transportation (Continued) 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 393.82 - Speedometer. 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). [70 FR 48054, Aug. 15, 2005]