S.C. Code § 57-5-1440
Turnpike bonds issued pursuant to this article may be in the form of negotiable coupon bonds, payable to bearer, with the privilege to the holder of having them registered in his name on the books of the State Treasurer as to principal only, or as to both principal and interest, and the principal or both principal and interest, as the case may be, thus made payable to the registered holder, subject to conditions the State Fiscal Accountability Authority prescribes. Turnpike bonds so registered as to principal in the name of the holder may thereafter be registered as payable to bearer and made payable accordingly.
Turnpike bonds may also be issued as fully registered bonds with both principal and interest made payable only to the registered holder. The fully registered bonds are subject to transfer under conditions the State Fiscal Accountability Authority prescribes. The fully registered bonds may, if the proceedings authorizing their issuance so provide, be convertible into negotiable coupon bonds with the attributes set forth in the first paragraph of this section.
S.C. Code § 57-5-1440