Michigan Trailer Laws & Trailer Regulations

Michigan's laws and regulations for trailers are listed below:

Michigan Trailer Brake Laws

Independent braking system required when gross weight exceeds 3,000 lbs. 

Michigan Trailer Dimension Laws

Total length: 65 feet; trailer length: 45 feet; width: 102 inches (allows outside width to exceed 102 inches due to an appurtenance); height: 13 feet 6 inches.

Michigan Trailer Hitch Laws

The hitch cannot exceed 15 feet in length from 1 vehicle to the other and may not allow either vehicle to deviate more than 3 inches from the other.

If the connection consists of a chain, rope, or cable, there shall be displayed upon the connection a red flag or other signal or cloth not less than 12 inches both in length and width.

Michigan Trailer Signal Laws

All trailers must be equipped with at least 1 rear lamp mounted on the rear that emits a red light plainly visible from a distance of 500 feet to the rear.

The rear registration plate must be illuminated with white light so as to be visible from a distance of 50 feet to the rear.

Also required: on the front, 2 clearance lamps, 1 at each side; on each side, 2 side marker lamps, 1 at or near the front and 1 at or near the rear; on each side, 2 reflectors, 1 at or near the front and 1 at or near the rear; and on the rear, 2 clearance lamps, 1 at each side, also 2 reflectors, 1 at each side, and 1 stop light.

Michigan Trailer Lighting Laws

Required. 

Michigan Trailer Mirror Laws

A person driving a passenger vehicle pulling another vehicle or trailer shall not exceed the posted speed limit.

Michigan Trailer Speed Limit Laws

A person driving a passenger vehicle pulling another vehicle or trailer shall not exceed the posted speed limit.

Michigan Trailer Towing Laws

N/A.