What Massachusetts charges for a single-trip OS/OW permit, the limits that trigger one, and the escort thresholds — read from the state’s own publication. This rule has been in effect since 2024-01-01; we last read the source on 2026-07-10.
Oversize permit
$40
One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Overweight permit
$40
One price for a single-trip overweight permit.
A load that is both oversize and overweight pays this fee only, not both.
+ $20 Permigo service fee per permit, state fees at cost.
Legal limits
Exceed any one of these in Massachusetts and you need a permit for this state.
Limit
Interstate
Off-interstate
Width
8'6"
8'6"
Height
13'6"
13'6"
Length
60'0"
60'0"
Gross weight
80,000 lbs
80,000 lbs
Single axle
22,400 lbs
Tandem axle
34,000 lbs
Trailer length
53'0"
What the permit costs
Massachusetts prices a single-trip permit as flat rate. One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Escort requirements
Thresholds by road class. Where two classes differ, the road you are actually on governs.
Turnpike (I-90) / MHS Boston
Width
Requirement
Over 12'0"
1 rear escortTurnpike/MHS over 12' wide: 1 FOLLOWING pilot (700 CMR 7.07(4)(d)).No movement under permit 'when there are large areas of hard packed snow or ice on the surface of the road or during a snowstorm' (700 CMR 8.06(1) verbatim).
Over 13'6"
1 front escort + 1 rear escortTurnpike/MHS over 13'6" wide (to 16'): front + following pilots
Over 16'0"
1 front escort + 1 rear escort · 2 police escortsTurnpike/MHS wider than 16': 'two motor vehicles of the Massachusetts State Police' (7.07(4)(d)7 verbatim; the old 15' threshold was wrong). MSP may also be required for slow vehicles at their discretion.
Height
Requirement
Over 12'6"
Conditions applyBoston tunnels cap at 12'6": Callahan and Sumner (700 CMR 7.07(4) Table 7) — tall loads route around the tunnels; Turnpike/MHS irreducible permits are ordinarily NOT issued toward Logan through Sumner/TWT 7–10 a.m. or from Logan through Callahan/TWT 3–7 p.m. (7.07(2)(h)).
Over 13'8"
1 front escort · height pole · route surveyOver 13'8" high: high-pole survey + ONE pole-carrying front escort (one vehicle)
Over 13'11"
1 front escort + 1 rear escortOver 13'11" high: front + rear pilots (route-dependent).
1 rear escortMHS over 80' overall: 1 following pilot (Turnpike-proper relaxes to >90' — both map to the toll class; the tighter MHS band is)
Over 95'0"
1 front escort + 1 rear escortMHS over 95' overall: front + following pilots (Turnpike-proper: >100';)
Over 135'0"
1 front escort + 1 rear escort · 2 police escortsLonger than 135': 'two motor vehicles of the Massachusetts State Police' (7.07(4)(d)7 verbatim) + front and following pilots. Turnpike Interchange 11A–24 curfew: eastbound 7–10 a.m., westbound 3–7 p.m. — irreducible permits ordinarily not issued (7.07(2)(h)).
Front overhang
Requirement
10'0" and over
1 rear escortOverhang 10'+ (4'+ poles/masts/booms, drill rigs, shovels, cranes, odd shapes): 'A pilot car must follow' (700 CMR 7.07(4)(d)1 verbatim — one following pilot).
Rear overhang
Requirement
10'0" and over
1 rear escortOverhang 10'+ (4'+ pole-type): one following pilot (7.07(4)(d)1).
Weight
Requirement
Over 130,000 lbs
route survey · superloadGVW over 130,000 lb = SUPER LOAD: $300 single trip + detailed engineering calculations (700 CMR 7.07(3) Table 5 verbatim). Tolls are always additional on the Turnpike.No movement under permit 'when there are large areas of hard packed snow or ice on the surface of the road or during a snowstorm' (700 CMR 8.06(1) verbatim).
State highways
Width
Requirement
Over 12'0"
1 rear escortOver 12' wide (12'1"–13'6") on state highways: 1 REAR escort (OASIS permit conditions; JJK + broker consensus — the state-highway escort ladder lives in permit conditions, not in any CMR).Travel hours tighten with size (OASIS permit conditions; JJK/broker consensus — the official conditions sheet prints only on issued permits): 12'–14' wide, or over 13'11" high, or 80'–114' long = sunrise–sunset Mon–Fri EXCLUDING 7:00–9:00 a.m. and 3:30–7:00 p.m.No movement under permit 'when there are large areas of hard packed snow or ice on the surface of the road or during a snowstorm' (700 CMR 8.06(1) verbatim).
Over 13'6"
1 front escort + 1 rear escortOver 13'6" wide: front + rear escorts (state-highway permit conditions).
Over 14'11"
1 front escort + 1 rear escort · 1 police escortOver 14'11" wide: Massachusetts State Police + front and rear civilian escorts (JJK verbatim: 'Massachusetts State Police and 2 front and rear'); 14'11" is also the practical routine-permit ceiling. MSP via Paid Details (per-Troop; rates unpublished).Over 14' wide or over 115' long: movement Tuesday/Wednesday/Thursday ONLY, 9:30 a.m.–3:30 p.m. (OASIS permit conditions; secondary-sourced — confirm on the issued permit).
Height
Requirement
Over 13'8"
1 front escort · height pole · route surveyOver 13'8" high: route/height (high-pole) survey + ONE front escort CARRYING the clearance pole
Over 13'11"
1 front escort + 1 rear escortOver 13'11" high: front + rear pilot cars, route-dependent (permit conditions may vary by clearance survey).Travel hours tighten with size (OASIS permit conditions; JJK/broker consensus — the official conditions sheet prints only on issued permits): 12'–14' wide, or over 13'11" high, or 80'–114' long = sunrise–sunset Mon–Fri EXCLUDING 7:00–9:00 a.m. and 3:30–7:00 p.m.
Over 14'11"
1 front escort + 1 rear escort · 1 police escort · route surveyOver 14'11" high: front + rear pilots + MSP + survey (state-highway permit conditions).
Length
Requirement
Over 80'0"
1 rear escortOver 80' overall (80'–94'11"): 1 REAR escort (state-highway permit conditions).Travel hours tighten with size (OASIS permit conditions; JJK/broker consensus — the official conditions sheet prints only on issued permits): 12'–14' wide, or over 13'11" high, or 80'–114' long = sunrise–sunset Mon–Fri EXCLUDING 7:00–9:00 a.m. and 3:30–7:00 p.m.
Over 94'11"
1 front escort + 1 rear escortOver 94'11" overall: front + rear escorts.
Over 135'0"
1 front escort + 1 rear escort · 2 police escortsOver 135' overall: 2 MSP vehicles + front and rear civilian escorts (JJK prints '134 feet or more' — the 135' consensus is)Over 14' wide or over 115' long: movement Tuesday/Wednesday/Thursday ONLY, 9:30 a.m.–3:30 p.m. (OASIS permit conditions; secondary-sourced — confirm on the issued permit).
Front overhang
Requirement
10'0" and over
1 rear escortOverhang 10' or more (4'+ for poles/masts/booms): ONE pilot car must FOLLOW the load (700 CMR 7.07(4)(d)1 verbatim — a following pilot, not one per end). MGL c.90 §19: any load >15' beyond the bed statutorily requires a following vehicle; >4' boom/crane overhang takes a red flag/light.
Rear overhang
Requirement
10'0" and over
1 rear escortRear overhang 10' or more (4'+ for pole-type loads): 1 following pilot (700 CMR 7.07(4)(d)1); >15' beyond the bed = statutory following vehicle (MGL c.90 §19).
Weight
Requirement
Over 130,000 lbs
route survey · superloadGVW over 130,000 lb = SUPER LOAD: $300 single-trip permit (replaces the $40) + detailed engineering calculations (700 CMR Tables 5/1 verbatim). Weight-only class — width/length never create a superload in MA; they escalate to 2-MSP escorts instead.No movement under permit 'when there are large areas of hard packed snow or ice on the surface of the road or during a snowstorm' (700 CMR 8.06(1) verbatim).
Movement restrictions
Restriction
In Massachusetts
Night travel
Daylight hours only
Weekends
Restricted
Holidays
Restricted
Movement hours (mass.gov official + OASIS conditions, verified 2026-07-10)
Load
Window
Base windows (all permit loads)
Mon 12:01 a.m. → Sat noon, plus Sun 12:01 a.m. → Sun noon (weekend AFTERNOONS closed)
snow/ice shutdown (8.06(1)); skid chains Nov 1–May 1 in emergencies
Where these permits come from
If you file yourself, this is the office you are dealing with. Check the linked page — some states issue OS/OW permits through their highway patrol or revenue department rather than the DOT.
