S.C. Code Ann. § 11-9-140

The State Fiscal Accountability Authority may transfer to the Bond Contingency Revolving Fund any capital improvement bond project balances determined not to be usable or needed. Capital improvement bonds issued on behalf of the Mental Health Commission as provided in Act 151 of 1983 and Acts 1272 and 1276 of 1970, as amended, or bonds issued on behalf of the Department of Behavioral Health and Developmental Disabilities as provided in Section 44-20-1110 et seq. are exempt. Before accomplishing a transfer of this type, the required determination must be made by the agency for which the funds were authorized or by the State Fiscal Accountability Authority if the agency no longer exists, and the board must find that the purpose for which the funds were authorized has been achieved. Any transfer by the State Fiscal Accountability Authority must first be reviewed by the Joint Bond Review Committee.