Commercial truck regulations

Overview

If you're applying for a truck permit, you first want to check if your truck meets the state's regulations. Your truck’s weight and height is taken into consideration before it requires an oversize/overweight permit.

Legislation Regarding Dimensions and Weights of Trucks and Trailers

Weight limitations

Your truck requires a permit if it exceeds:

• Motor vehicle (2 axles) - 46,000 lbs.
• Vehicle or vehicle combination (3 axles) - 73,000 lbs.
• Vehicle or vehicle combinations (4 axles) - 87,000 lbs.
• Vehicle or vehicle combinations (5+ axles) - 99,000 lbs.

Your truck will also require a permit if the weight on any axle exceeds:

• Axles spaced less than 6 ft. apart - 18,000 lbs.
• Axles spaced more than 6 ft. apart - 22,400 lbs.
• Overall gross weight of 2 or more consecutive axles - 80,000 lbs.

Height limitations

Your truck will not require a special permit if it does not exceed:

• A width, including load, of 8 ft. 6 in. (If using tunnels)
• A height, including load, of 13 ft. (If not using tunnels)

There are also restrictions on your vehicle’s height depending on the route you are travelling and the vehicle type. Below are the maximum heights allowed per way and type of vehicle. 

Length limitations