State law authorizes the SCDOT Oversize/Overweight Permit (OSOW) office, at its discretion, to issue permits for vehicles and loads that exceed legal size and/or weight limits.
To apply for an Oversize/Overweight permit, you need to go to the SCDOT ARPS Web Site to access the Automated Routing and Permitting System.
At a minimum, your web browser must support 128 bit encryption.
To contact the permit office with questions or comments via email OSOW Help
A schedule of All Holiday Office Closers and Travel Restrictions are available in PDF format, and can be viewed under the Related Documents section below. Please print this schedule for future reference.
In the event of inclement weather during the winter months, the permit office will be closed per the Governors instructions for state offices in the Richland and Lexington County area. Please visit the SCDOT Home Page for road conditions in each county you may be traveling in or to.
If a special Oversize/Overweight restriction waiver is needed in the event of a national, statewide, regional or county emergency, the requesting governmental entity or utility should contact and work with the South Carolina Emergency Management Division at (803) 737-8500 to request the waiver.
If an Oversize/Overweight restriction waiver is currently in place, it can be viewed below or on the following websites:
If you are seeking clearance to bypass the weigh station/scale facility because an emergency condition exists, please contact the State Transport Police direct at (803) 896-5500.
OSOW Permit Office
955 Park Street, Room G4
Columbia, SC 29201
South Carolina Department of Transportation
Attn: OSOW Permit Office
P.O. Box 191
Columbia, SC 29202
(877) 349-7190 (Toll Free)
(803) 737-OSOW or
(803) 737-6769 (Local)
(803) 737-2199 (Fax)
After Hours Emergencies:
The following portions of the law pertain to OSOW:
Title 56-5-4010, 4020, 4030, 4035, 4055, 4060, 4070, 4075, 4080, 4090, 4095, 4120, 4130, 4140
South Carolina Size and Weight Guidelines (PDF 89 Kb)
SC Oversize/Overweight Truck Route Map Application Form (PDF 36.6 Kb)
SC Truck Route Map 11 X 17 (PDF 4.29 Mb)
SC Oversize/Overweight Truck Route Map (PDF 8.08 Mb)
STAA Truck Network Map for South Carolina (PDF 1.5 Mb)
Bulk Agriculture Application (PDF 20 Kb)
100,000 lbs Permit Application (PDF 19.7 Kb)
2017 Holiday Travel Restrictions and Office Closures (PDF 40 Kb)
Update Request Form (PDF 17.9 Kb)
Account Set-Up Form (PDF 15.6 Kb)
Straight Truck Application (PDF 15.8 Kb)
Amendment Form (PDF 9 Kb)
Single Trip Permit Application (PDF 65.3 Kb)
Multi-trip (Annual) Permit Application (PDF 116 Kb)
Wide Load Permit Application - Over 16 ft (PDF 65.3Kb)
House Moving License Application (PDF 112 Kb)
House Moving Permit Application (PDF 63.2 Kb)
SC Current Road Conditions
SCDOT Bridge Load Restrictions
OSOW Permit Fee Structure
FHWA Vehicle Size and Weight Regulations and Bridge Formula
South Carolina's Code of Laws, Uniform Act Regulating Traffic on Highways: