S.C. Code Ann. § 11-9-290

The State Treasurer shall at all times maintain a sufficient cash reserve in the general deposit account to finance properly the activities supported by the respective funds comprising the general deposit account and to this end the State Fiscal Accountability Authority may borrow, from time to time, such amounts as are necessary. To the end that such borrowing may be kept at a minimum each department and institution may be required to give to the State Treasurer a quarterly anticipation of its expenditures, itemized according to budget classifications, by months.