S.C. Code § 59-127-420
To provide for the adequate payment of the principal of and interest on the bonds, the trustees are authorized to place into effect either the admission fee or the special student fee, or both. If only one of the fees is imposed at the time the bonds are issued, the trustees, at any time the bonds are outstanding, by resolution, may impose the other fee to further secure payment of the bonds. The fees must be established on a basis and in an amount necessary to provide for the payment of the principal and interest on the bonds as they mature and to provide cushion or reserve for them in the Debt Service Fund that the trustees consider prudent. Either the admission fee or the special student fee, or both, may be imposed as soon after the effective date of this article as the trustees determine. It is the duty of the trustees to calculate the debt service requirements of the bonds not less frequently than annually and at that time, appropriate revisions of the admission fee or the special student fee, or both, may be made if required to make adequate provisions for the payment of principal and interest on the bonds and the maintenance of the cushion or reserve in the fund.
The special student fee must bear nomenclature as the trustees prescribe and, in the discretion of the trustees, it may be included as a part of any other fees. However, it is the duty of the trustees to account for the receipts from the special student fee to the State Treasurer.
S.C. Code § 59-127-420