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South Carolina Oversize Permits Detail

South Carolina Oversize Permit Regulations

South Carolina Department of Transportation

Address: P.O. Drawer 191 Columbia, South Carolina 29202

Contact: (803) 737-6769 / 1 (877) 349-7190

Hours: 8:00 A.M. – 4:30 P.M. (ET) *No permits issued before 8:30 A.M. or after 4:30 P.M.*

South Carolina Trip Permit

Single trip permits are valid for seven (7) consecutive days.



Gross Weight:

5 Axles90,000
6 Axles110,000
7 Axles130,000

Length: 125’ loads on pole trailers.

15’ rear overhang w/ escort on trailers less than 48’

40’ on 2 axle trucks

45’ on 3 axle trucks

Width: 16’

Height: Must be at least 6” less than any overhead structure on route.

Overhang: 15’ rear overhang & 3’ front overhang on a trailer 53’ or less. Trailers longer than 53’ are allowed to have ⅓ of the load overhang the rear of the trailer

When Escorts Are Needed:

On 2-Lane Highways:                     # of Escorts

Width over 12’ up to 14’1 Front

On All Highways:

Width over 14’ to 16’2 (Front & Rear)
Width over 16’ (requires approval of co. resident engineers and then state oversize permit department)2 (1 Front & 1 Rear) & 2 Police
Rear overhang of 15’ on a less than 48’ trailer; 10’ on 48’ & 53’ trailersRear escort and flags (or an amber light – see truck signs and lights section
Permittee is responsible for vertical clearancesn/a
No specific escort needs given for height and lengthn/a


Vectra Heavy Haulers, a company for heavy haul transport with a formidable reputation, will ensure secure and trusted delivery services according to your needs.

Did you know that we have information on North Carolina Oversize Permits as well?

We follow all the regulations and permits for transporting goods across state and local jurisdictions. For more South Carolina Oversize/Overweight Permit (OSOW) office regulation information.