S.C. Code Ann. § 52-19-140: System for lowering and monitoring jumper to landing pad.

The owner must provide a system for lowering the jumper to the landing pad which must be a mechanically powered system not capable of free fall and operated by the jump master. The owner must also provide a second person to monitor the lowering of all jumpers who must be capable of stopping the process if necessary to avoid injuries to the jumper.