S.C. Code Ann. § 6-25-111
(A) A joint system may issue bonds for the purpose of paying all or any part of the cost of any of the purposes authorized in this chapter. The principal of, premium, if any, and the interest on the bonds are payable solely from the respective funds provided for such payment by this chapter. The bonds of each issue may be sold at public or private sale. The bonds may be sold at a price, and must bear interest at a rate, as may be determined by the commission of the joint system. The bonds of each issue must be dated and must mature in amounts and at times not exceeding fifty years from their respective dates, as may be determined by the commission of the joint system, and may be made redeemable before maturity at a price and under terms and conditions as may be fixed by the commission of the joint system before the issuance of the bonds. The commission of the joint system shall determine the form and the manner of execution of the bonds, including any interest coupons to be attached to them, and shall fix the denomination of the bonds and the place of payment of principal and interest, which may be at any bank or trust company within or without the State. In case any officer whose signature or a facsimile of whose signature appears on any bonds or coupons ceases to be an officer before the delivery of the bonds, the signature of the facsimile is nevertheless valid and sufficient for all purposes the same as if he had remained in office until the delivery. The commission of the joint system also may provide for the authentication of the bonds by a trustee or fiscal agent. The bonds may be issued in coupon or in fully registered form, or both, as the commission of the joint system may determine, and provisions may be made for the registration of any coupon bonds as to the principal alone and also as to both principal and interest; and for the reconversion into coupon bonds of any bonds registered as to both principal and interest, and for the interchange of registered and coupon bonds.