S.C. Code Regs. 38-396.3. Inspection, repair, and maintenance

(a) General. Every motor carrier shall systematically inspect, repair, and maintain, or cause to be systematically inspected, repaired, and maintained, all motor vehicles subject to its control. (1) Parts and accessories shall be in safe and proper operating condition at all times. These include those specified in part 38-393 of this regulation and any additional parts and accessories which may affect safety of operation, including but not limited to, frame and frame assemblies, suspension systems, axles and attaching parts, wheels and rims, and steering systems.