Title 49: Transportation
Subtitle 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]