Who issues oversize/overweight permits in South Carolina?

SCDOT — Motor Carrier Division, OS/OW Permits issues OS/OW permits in South Carolina. Applications are submitted through the official portal.

When is a route survey required in South Carolina?

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 South Carolina?

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

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South Carolina OS/OW Permit Requirements

United States · SCDOT — Motor Carrier Division, OS/OW Permits

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

Lead time

3 business days

Base fee

$30 single-trip; $300 annual

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 $30 base. Annual $300. Overweight $10–$200 by tier. Superload (>16 ft wide, >150,000 lbs) requires SCDOT bridge review at $300+.

Official resources

Reference information last verified May 2026. Always confirm current requirements with SCDOT — Motor Carrier Division, OS/OW Permits.

Surveying a route through South Carolina?

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