Oversize/Overweight Permits

What is an Oversize Overweight Permit?

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.

Permitting System Upgraded to Safehaul

The OSOW permitting has been upgraded to a newer version of the software. We’ve posted instructional video on this page to demonstrate how to build and generate a route in the new system. We hope you find the new features useful.

Safehaul Instructional Video

Instructional Video Transcript

trucks driving on highway during inclement weather

Inclement Weather

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 road conditions page to find out the condition of the roads in each county you may be traveling in or to.

person signing and emergency waiver form


In the event of a national or state emergency, a special oversize and/or overweight permit can be downloaded using the below links.

The Governor of South Carolina has declared a State of Emergency. View the Declaration

A Special Permit for over width loads to travel on non-interstate routes within the National Network View the Permit

If you are seeking clearance to bypass the weigh station/scale facility due to an emergency condition, please contact the State Transport Police direct at (803) 896-5500.