S.C. Code § 59-21-140
The State Fiscal Accountability Authority may borrow in each year in anticipation of the receipt of revenues provided for school aid such sum or sums as may be necessary to pay any portion of the amounts appropriated herein and becoming due to the respective counties of the State prior to the collection thereof. Such notes shall be issued in such form and manner as the Board may elect and, when issued, are hereby declared to be current obligations of the State. But in lieu of borrowing as provided herein the Comptroller General may issue his warrant against the general fund in the treasury when it appears that sufficient funds are available therein, and the State Treasurer shall pay the same as provided in Section 59-21-130. Such withdrawals from the general fund, if made, shall constitute a loan to the school aid fund from the general fund, the same to be repaid when revenues provided for school aid are collected. The proceeds of such loan or loans shall be paid to the respective counties for school aid to the respective counties as provided in Section 59-21-130.
S.C. Code § 59-21-140