Utah Trailer Laws
& Trailer Regulations
Utah's
laws and regulations for trailers are listed below:  Utah
Trailer Brake Laws
Every motor vehicle and every combination of vehicle shall have a service braking system which will stop the vehicle or combination within 40 feet from an initial speed of 20 mph on level, dry, smooth, hard surface. Every motor vehicle and combination of vehicles shall have a parking brake system adequate to hold the vehicle or combination of any grade on which it is operated under all conditions of loading on a surface free from snow, ice, or loose material.
Utah
Trailer Dimension Laws
Total length: 65 feet (includes bumpers); trailer length: 40 feet (includes bumpers); width: 102 inches (can exceed 102 inches if excess is due to an appurtenance); height: 14 feet.
Utah
Trailer Hitch and Signal Laws
Every towed vehicle shall be coupled by means of a safety chain, cable, or equivalent device, in addition to the regular trailer hitch or coupling. The safety chain or cable shall be securely connected with the chassis of the towing vehicle, the towed vehicle, and the drawbar. The safety chain or cable shall be of sufficient material and strength to prevent the 2nd vehicle from becoming separated and shall have no more slack than is necessary for proper turning. The safety chain or cable shall be attached to the trailer drawbar so as to prevent it from dropping to the ground, and to assure the towed vehicle follows in the course of the towing vehicle in the case the vehicles become separated. The requirement for chains or a cable does not apply to a semitrailer having a connecting device composed of a 5th-wheel and kingpin assembly, or to a pole trailer.
Utah Trailer Lighting
Laws
Tail, brake, and license plate lights are required. Turn signals and 2 or more red reflectors are also required. A trailer over 80 inches must have clearance lights.
Utah
Trailer Mirror Laws
Every motor vehicle shall be equipped with a mirror mounted on the left side of the vehicle and so located as to reflect to the driver a view of the highway to the rear of the vehicle. Every vehicle shall be equipped with a mirror mounted either inside the vehicle approximately in the center or outside the vehicle on the right side and so located as to reflect to the driver a view of the highway to the rear of the vehicle.
Utah
Trailer Speed Limit Laws
Same as passenger cars/trucks unless posted.
Utah Trailer Towing
Laws
Every towed vehicle shall be coupled by means of a safety chain, cable, or equivalent device, in addition to the regular trailer hitch or coupling. The safety chain or cable shall be securely connected with the chassis of the towing vehicle, the towed vehicle, and the drawbar. The safety chain or cable shall be of sufficient material and strength to prevent the 2 vehicles from becoming separated and shall have no more slack than is necessary for proper turning. The safety chain or cable shall be attached to the trailer drawbar so as to prevent it from dropping to the ground, and to assure the towed vehicle follows in the course of the towing vehicle in case the vehicles become separated. The requirement for chains or a cable does not apply to a semitrailer having a connecting device composed of a 5th-wheel and kingpin assembly, nor to a pole trailer.
Whenever the load upon any vehicle extends to the rear 4 feet or more beyond the bed or body of the vehicle there shall be displayed at the extreme rear end of the load, between 1/2 hour after sunset and 1/2 hour before sunrise, 2 red lamps and 2 red reflectors located so as to indicate maximum width and maximum overhang. At all other times, there shall be displayed red flags, not less than 12 inches square, marking the extremities of the load.
Vehicles drawing trailers are prohibited from operating in the left-most general purpose lane on highways with more than 3 lanes traveling the same direction.
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The United States Trailer Laws and Regulations by State by
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