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.
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.
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.
|Way||Maximum Vehicle Height|
|Turnpike||13 feet 6 inches|
|Ted Williams Tunnel||13 feet 6 inches|
|Callahan Tunnel||12 feet 6 inches|
|Sumner Tunnel||12 feet 6 inches|
|O'Neill Tunnel (I-93)||13 feet 6 inches|
|CANA (City Square) Tunnel||13 feet 6 inches|
|Other Locations Not Listed||13 feet 6 inches|
|Type of Vehicle||Maximum Vehicle Length|
|Motor vehicle not listed||33 feet|
|Vehicle combination not listed other than semi trailer||60 feet|
|Articulated bus||60 feet|
|Auto home||40 feet|
|Automobile transporter (traditional)||65 feet|
|Automobile transporter (stinger-steered)||75 feet|
|Boat transporter (traditional)||65 feet|
|Boat transporter (stinger-steered)||75 feet|
|Boat transporter (truck trailer)||65 feet|
|Bus or school bus||45 feet|
|House trailer||40 feet|
|Saddlemount combination||75 feet|
|Trailer in tractor-trailer combination||53 feet|
|Trailer not in tractor-trailer combination||33 feet|