S.C. Code § 11-29-30
With respect to the issuance of additional state institution bonds pursuant to the provisions of Chapter 107, Title 59 of the 1976 Code, which bonds are to be henceforth secured by a pledge of the full faith, credit and taxing power of the State and are to be additionally secured by a pledge of the revenues derived from the tuition fees received by the particular state institution of higher learning for which such state institution bonds are issued, the State Treasurer is hereby directed to set aside from such tuition fees received in each fiscal year in which the interest on and principal of state institution bonds for such state institution are due or will become due so much of the revenues derived from such tuition fees as may be necessary in order to pay the interest on and principal of all state institution bonds for such institution due and falling due in such fiscal year and the State Treasurer shall thereafter apply such monies to the punctual payment of such principal and interest as the same respectively fall due. In the event that the revenues derived from the tuition fees so pledged prove insufficient to meet the payments of the interest on and principal of such state institution bonds in such fiscal year, then the State Treasurer is authorized and directed to set aside from the general tax revenues received in such fiscal year so much of such general tax revenues as become needed for such purpose and to apply the same to the punctual payment of the interest on and principal of such state institution bonds due or to become due in such fiscal year.
S.C. Code § 11-29-30