South Carolina CMV Compliance Guide
SC DOT regulations for commercial motor vehicles
SC State Transport PoliceOfficial SC DOT websiteOverview
South Carolina State Transport Police handles commercial vehicle enforcement. The Port of Charleston is a major East Coast cargo port, and I-95, I-85, I-26, and I-77 are key freight corridors.
Inspection & Enforcement Program
South Carolina operates weigh stations and mobile enforcement units. The State Transport Police perform Level I through Level III inspections with presence on major Interstate corridors.
Weight Limits & Oversize/Overweight
South Carolina follows federal weight limits of 80,000 lbs GVW on Interstate highways. The state issues overweight permits through SCDOT.
South Carolina-Specific Requirements
- South Carolina requires a state-specific commercial vehicle registration for intrastate carriers.
- Port of Charleston has specific truck access routes and appointment systems.
- The state enforces specific weight limits on coastal bridges.
Contact
SC State Transport Police: (803) 896-3990
Federal Requirements That Apply in South Carolina
In addition to South Carolina-specific regulations, all federal DOT and FMCSA requirements apply to commercial vehicles operating in SC. These guides cover each federal requirement in detail:
This information is provided as a general reference. State regulations change frequently. Always verify current requirements with the South Carolina DOT or your compliance advisor before relying on any information presented here.