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Wyoming OS/OW Permit Requirements

United States · WYDOT — Motor Carrier Services, Permit Section

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

Lead time
3 business days
Base fee
$20 single-trip + mileage
Permit validity
Up to 5 days

Route survey triggers

  • Height
    Height exceeds 14' — oversize permit required (Wyoming legal limit 14')
  • Width
    Width exceeds 8'6" — oversize permit required
  • Length
    Length exceeds 75' — oversize permit required
  • Weight
    Gross weight exceeds 80,000 lbs — overweight permit required
  • Width
    Width exceeds 20' — route survey required
  • Height
    Height exceeds 17' — route survey required
  • Weight
    Gross weight exceeds 250,000 lbs — WYDOT special superload permit required

Fee notes

Single-trip $20 base + $0.04–$0.15/mile overweight. Annual $60. Superload (>14 ft H/W) requires WYDOT engineering review at $250+.

Official resources

Reference information last verified May 2026. Always confirm current requirements with WYDOT — Motor Carrier Services, Permit Section.

Surveying a route through Wyoming?

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