S.C. Code Ann. § 58-27-1570

The Office of Regulatory Staff may require the production within this State at a time and place as it may designate, of any books, accounts, papers, or records of the electrical utility relating to its business or affairs within the State, pertinent to any lawful inquiry and kept by such electrical utility in any office or place within or without this State or, at its option, verified copies in lieu thereof, so that an examination thereof may be made by the Office of Regulatory Staff or under its direction.