S.C. Code § 58-17-4130
When a railroad laid out and constructed by one corporation is lawfully maintained and operated by another corporation, the latter shall be subject to the duties, liabilities, restrictions and other provisions as they are set forth in the General Railroad Law respecting or arising from the maintenance and operation of such railroad in the same manner as if it had been laid out and constructed by the latter corporation. When a railroad is lawfully maintained and operated by trustees or receivers they shall in like manner be subject to the duties, liabilities, restrictions and other provisions respecting or arising from the maintenance and operation of such railroad which are attached in the General Railroad Law to the corporation for whose stockholders or creditors, or either, they are trustees or receivers.
S.C. Code § 58-17-4130