S.C. Code Regs. § § 71-906
Whenever employee medical information obtained pursuant to a written access order is taken off-site with direct personal identifiers included, the Principal SC/OSH Investigator shall, unless otherwise authorized by the SC/OSH Medical Records Officer, promptly separate all direct personal identifiers from the medical information, and code the medical information and the list of direct identifiers with a unique identifying number for each employee. The medical information with its numerical code shall thereafter be used and kept secured as though still in a directly identifiable form. The Principal SC/OSH Investigator shall also hand deliver or mail the list of direct personal identifiers with their corresponding numerical codes to the SC/OSH Medical Records Officer. The SC/OSH Medical Officer shall thereafter limit the use and distribution of the list of coded identifiers to those with a need to know its contents.
S.C. Code Regs. § 71-906