Wisconsin Trailer Laws
& Trailer Regulations
Wisconsin's
laws and regulations for trailers are listed below:
 Wisconsin
Trailer Brake Laws
Any trailer,
semitrailer, or other towed vehicle with a GVW of 3,000 lbs. or more must be equipped with brakes adequate enough to stop the vehicle.
Wisconsin
Trailer Dimension Laws
Total length: 65 feet; trailer length: 48 feet; width: 102 inches (excludes mirrors and safety devices); height: 13 feet 6 inches.
Wisconsin
Trailer Hitch and Signal Laws
The drawbar or other connection between 2 vehicles may not exceed 12 feet in length. In addition to the hitch, every towed vehicle must be coupled to the towing vehicle by means of safety chains, leveling bars, or cables. This provision does not apply to a vehicle equipped with a 5th-wheel and kingpin assembly.
Wisconsin Trailer Lighting
Laws
A mobile home, trailer, or semitrailer must be equipped with at least 1 red tail lamp, mounted on the rear that is plainly visible from a distance of 500 feet. If a vehicle was originally equipped with 2 red tail lamps, it is unlawful for such vehicle to be operated or towed unless both tail lamps are in proper working order.
All mobile homes, trailers, and semitrailers sold after January 1, 1968 must be equipped with at least 2 direction signal lamps to the front and 2 direction signal lamps to the rear which must be visible from a distance of 300 feet.
Any trailer having a width at any part of 80 inches must be equipped with 2 amber clearance lamps mounted on the front of the vehicle, 2 red clearance lamps mounted on the rear of the vehicle, and 2 red reflectors mounted on the rear.
It is unlawful to tow or operate any trailer during the hours of darkness if not equipped with 1 red reflector on each side of the rear of the trailer.
Wisconsin
Trailer Mirror Laws
Any vehicle must be equipped with a mirror or mirrors sufficient to reflect to the operator a view of the roadway for a distance of 200 feet to the rear of the vehicle.
Wisconsin
Trailer Speed Limit Laws
Same as for passenger
cars/trucks.
Wisconsin Trailer Towing
Laws
It is unlawful for any person to operate a motor vehicle towing a 5th-wheel mobile home when any person under the age of 12 is in the 5th-wheel mobile home, unless that person is accompanied by at least 1 person who is at least 16 years old. It is unlawful to operate a motor vehicle towing a 5th-wheel mobile home while passengers are in the 5th-wheel mobile home unless there is a 2-way communication device capable of providing voice communications between the operator of the motor vehicle and the occupants of the 5th-wheel mobile home.
No vehicle with a load or fixture which extends more than 4 feet beyond the rear of the bed or body of the vehicle may be operated during the hours of darkness unless a red light or lantern, visible from a distance of 500 feet, is displayed on the extreme rear of the load or fixture. When such vehicle is operated at a time other than during the hours of darkness, a red flag not less than 12 inches square must be displayed on the extreme rear of the load or fixture.
A motor vehicle may be towed without being equipped with brakes if the GVW of the towed vehicle is not more than 40% of the GVW of the towing vehicle and the towing vehicle has brakes adequate enough to stop the combination of vehicles.
It is unlawful for a single vehicle to tow more than 1 vehicle unless the vehicles are being towed by the drive-away method and their overall length does not exceed 65 feet.
Disclaimer:
The United States Trailer Laws and Regulations by State by
Trailers.com is not an inclusive list of laws, regulations and it
should be used by reference only and not used for any other purpose.
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