S.C. Code Regs. § ch. 61, 61-78, 61-78.2400
A written preventive maintenance program for all life support equipment including, but not limited to, all HVAC systems, potable water systems, patient monitoring equipment, isolated electrical systems, conductive flooring, patient grounding systems, and medical gas systems shall be developed and implemented. This equipment shall be checked and/or tested at such intervals to insure proper operation and a state of good repair. After repairs and/or alterations are made to any equipment or system, the equipment or system shall be thoroughly tested for proper operation before returning it to service. Records shall be maintained on each piece of life support equipment to indicate its history of testing and maintenance.
S.C. Code Regs. ch. 61, 61-78, 61-78.2400