OSOW
(262) 666-2266Go To App

OSOW Marketing

Mississippi OSOW Regulations

Permit, escort, and operating-hour requirements for oversize and overweight moves in Mississippi.

Request a Quote Call 24/7: (262) 666-2266

Mississippi OSOW Regulations (MDOT)

  • Width: 8'6" (on roadways 12' and wider)
  • Height: 13'6"
  • Length: 40' (single vehicle), 57'6" (truck-semitrailer)
  • Gross vehicle weight: 80,000 lbs

Maximum Permitted Dimensions (Routine Permits)

  • Width: 14' maximum
  • Height: 16' maximum
  • Length: 120' maximum
  • Gross weight: 250,000 lbs maximum

Permit Types and Costs

Single Trip Permit

  • Base fee: $25
  • Plus additional fees:
    • Size fee: $10 (for exceeding legal size)
    • Weight fee: $0.05 per 1,000 lbs over legal weight × miles traveled

Example calculation:

  • Overweight charges apply for weight exceeding 80,000 lbs at $0.05 per thousand lbs × miles traveled

Manufactured Housing Blanket Permits

  • Pre-numbered permit books (50 permits): $500.00

57-Foot Box Van Trailer Blanket

  • Annual fee: $100.00 per year, per carrier

Escort Vehicle Requirements

When Escorts Are Required

Night Travel

  • Over 10' wide: Escort required for night travel

Overhang

  • Over 15' overhang: 1 escort (except if permit specifies otherwise)
  • Over 15' overhang: 2 escorts AND State Police escort

Operating Times

Standard Hours

For loads 12' wide or less:

  • Sunrise to sunset

For loads greater than 12' wide:

  • 30 minutes after sunrise to 30 minutes before sunset
  • Monday through Saturday

Movement Requirements

  • Movement of loads exceeding 8'6" (102 inches) in width requires a permit

Contact Information

  • Phone: (601) 359-1717
  • Department: MDOT Transport Permits Unit
  • Website: https://www.mdot.ms.gov/portal/over-dimensional_permits
  • State: Mississippi
  • Agency: Mississippi Department of Transportation (MDOT)

Regulatory References

  • Mississippi Department of Transportation
  • MDOT Permit Rules - Sub-Part 6601, Chapter 03001 - Over-Dimensional Permits
  • Permit Fee Schedule: https://permits.mdot.ms.gov/PermitFees.pdf
  • https://mdot.ms.gov/portal/over-dimensional_permits
  • https://mdot.ms.gov/documents/Enforcement/Permits/Permit%20Rules.pdf
  • https://jjkellercompliancenetwork.com/regsense/oversize-and-overweight-movements-mississippi

Last Updated: 2025-11-12