Overview
Massachusetts oversize and overweight permits are issued by the Massachusetts Maintenance Engineer Commercial Motor Vehicle Center. Single-trip permits are valid for five consecutive days.
Permit approval depends on the proposed route, vehicle configuration, axle spacings and local traffic-control requirements.
Permit Office
| Office | Massachusetts Maintenance Engineer Commercial Motor Vehicle Center |
| Address | 14 Beach Street, Milford, Massachusetts 01757 |
| Contact | (508) 473-4778 |
| Hours | 8:00 A.M. – 4:30 P.M. (ET) |
Permit Basics
| Permit validity | Single-trip permits are valid for five (5) consecutive days. |
| Operating time | 8:00 A.M. – 4:30 P.M. (ET) |
Dimensions & Weights
Routine permit limits
| Length | 115′ |
| Width | 14′11″ |
| Height | 14′11″. Over 13′8″ requires a route survey. |
| Axle / group | Spacing | Weight |
|---|---|---|
| Single, Tandem, Tridum & Quad | — | See permit conditions |
Escort Requirements
| Based on | Escorts required |
|---|---|
| Width | Width 12′1″ and up dozer with blade attached: 2 (front & rear) |
| Width | Width over 13′6″: 2 (front & rear) |
| Width | On MA Turnpike — width over 12′: 1 rear |
| Width | On MA Turnpike — width over 13′: 2 (front & rear) |
| Width | On MA Turnpike — width over 15′: 2 (front & rear) + 2 police |
| Length | Length 80′ to 94′11″: 1 rear |
| Length | Length over 94′11″: 2 (front & rear) |
| Length | Length 134′ or more: MA State Police + 2 (front & rear) |
| Length | On MA Turnpike — length over 80′: 1 rear |
| Length | On MA Turnpike — length over 85′: 2 (front & rear) |
| Length | Length 135′ or more: 2 (front & rear) + 2 police |
| Height | Height over 13′8″: 1 front |
| Height | Height 13′11″: 2 (front & rear) |
| Height | Height over 13′8″: height survey required |
| Height | Height over 14′11″: 2 front + state police escort |
- City of Boston — if over legal dimensions: at least 1 escort, usually plus city police
- Overhang of 4′ or more if load is poles, masts or booms: 1 rear
- Overhang of 10′ or more if load is not poles, masts or booms: 1 rear
- Vehicle is a drill rig with boom, a shovel or crane, or is odd shaped: 1 rear
Notes
- Gross Weight — Reducible 5-8 Axles: 99,000
- Gross Weight — Non-Reducible 5-8 Axles: 130,000