Who issues oversize/overweight permits in Mississippi?

MDOT — Motor Carrier Permits, State Weight Station issues OS/OW permits in Mississippi. Applications are submitted through the official portal.

When is a route survey required in Mississippi?

Height exceeds 13'6" — oversize permit required Width exceeds 8'6" — oversize permit required Length exceeds 65' — oversize permit required Gross weight exceeds 80,000 lbs — overweight permit required Width exceeds 16' — route survey required Height exceeds 15' — route survey required

How far in advance should I apply for a permit in Mississippi?

Plan for a lead time of approximately 3 business days before your move date.

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Mississippi OS/OW Permit Requirements

United States · MDOT — Motor Carrier Permits, State Weight Station

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

Lead time

3 business days

Base fee

$10 single-trip + mileage

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 16' — route survey required
Height
Height exceeds 15' — route survey required

Fee notes

Single-trip $10 base + $0.05/mile overweight. Annual $250. Superload engineering review at MDOT hourly rate (~$100/hr).

Official resources

Reference information last verified May 2026. Always confirm current requirements with MDOT — Motor Carrier Permits, State Weight Station.

Surveying a route through Mississippi?

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