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
Please reach out to the permits department with any questions regarding weight limitations.
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. 6 in. (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 |
Length limitations
| 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 |
| Semi-trailer | 53 feet |
| Trailer in tractor-trailer combination | 53 feet |
| Trailer not in tractor-trailer combination | 33 feet |
| Truck | 40 feet |
Holiday restrictions
No movements are allowed on the following holidays:
- New Year's Day
- Memorial Day
- Independence Day
- Labor Day
- Thanksgiving Day
- Christmas Day
No movements are allowed between noon the day preceding and noon the day following these holidays: New Year's Day, Independence Day, and Christmas. Otherwise, travel is allowed on State Highways from Monday morning at 12:01 a.m. to noon on Saturday, and Sunday morning from 12:01 a.m. to noon.