Arizona Trailer Laws & Trailer Regulations

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


Arizona Trailer Brake Laws

Independent brake systems are required when the gross weight is 3,000 lbs. or more.



Arizona Trailer Dimension Laws

Total length: 65 feet (includes bumpers); trailer length: 40 feet (includes bumpers); width: 96 inches (total width of 102 inches is allowed on certain roads); height: 13 feet 6 inches.

May pull 2 units if the middle unit has a 5th wheel and brakes and has a weight equal to or greater than the rear unit; the rear unit is 3,000 lbs. or more and is equipped with brakes.



Arizona Trailer Hitch and Signal Laws

Devices used for towing shall not exceed 15 feet from 1 vehicle to the other. 



Arizona Trailer Lighting Laws

Trailers with a GVW of more than 3,000 lbs. must be equipped with 1 clearance lamp on each side of the front of the vehicle, 2 side marker lamps on each side of the vehicle, 2 reflectors on each side, 2 clearance lamps on the rear, 2 reflectors on the rear, and 1 stoplight on the rear.



Arizona Trailer Mirror Laws

Vehicles with trailers that obstruct driver’s rear view must be equipped with mirrors that reflect at least 200 feet of the roadway.



Arizona Trailer Speed Limit Laws

Vehicles towing trailers or semitrailers may not exceed a rate of speed that causes lateral sway. 



Arizona Trailer Towing Laws

Devices used for towing shall not exceed 15 feet from 1 vehicle to the other.

If a chain, rope, or cable is being used, a white flag or cloth at least 12 inches square must be displayed on the device itself.



Arizona Other Trailer Laws

A non-commercial trailer with a gross vehicle weight of 10,000 lbs. or less receives a permanent trailer registration. Travel trailers or tent trailers do not qualify.  






The United States Trailer Laws and Regulations by State by is not an inclusive list of laws, regulations and it should be used by reference only and not used for any other purpose. is not liable for incorrect or incomplete information. To report an error, incomplete or incorrect information, please send an email to