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Massachusetts OS/OW Permit Requirements

United States · MassDOT — Office of Freight and Economic Development, Permits Unit

Everything heavy-haul carriers need to know before moving an oversize or overweight load through Massachusetts: survey triggers, fees, lead times and the official permit portal.

Lead time
5 business days
Base fee
$40 single-trip OS/OW permit
Permit validity
Up to 5 days

Route survey triggers

  • Height
    Height exceeds 13'6" — oversize permit required
  • Width
    Width exceeds 8'6" — oversize permit required
  • Length
    Length exceeds 65' — oversize permit required
  • Weight
    Gross weight exceeds 80,000 lbs — overweight permit required
  • Width
    Width exceeds 14' — route survey required
  • Height
    Height exceeds 14' — route survey required

Fee notes

Single-trip $40 base. Annual $300. MassDOT superload reviews (>14 ft wide, >130,000 lbs) start at $500; State Police escort billed separately at OT rate.

Official resources

Reference information last verified May 2026. Always confirm current requirements with MassDOT — Office of Freight and Economic Development, Permits Unit.

Surveying a route through Massachusetts?

RoadScope generates Massachusetts-compliant survey reports automatically — the right sections, certifications and documentation for MassDOT — Office of Freight and Economic Development, Permits Unit.

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