S.C. Code Ann. § 59-2-85: Contributions through payroll deductions.

The Comptroller General and the chief financial officers of state agencies, departments, and institutions maintaining separate payroll accounts, at the request of a state employee, may arrange for contributions through payroll deduction to the program. The State Treasurer is authorized to devise a method whereby private and nonprofit businesses or organizations may arrange for employees to contribute through payroll deduction to the program.