S.C. Code Ann. § 13-1-1450: Bonds, revenue, and property of division to be tax exempt.

The bonds authorized by this article and the income therefrom, all trust indentures executed as security therefor, and all railroads and necessary equipment so long as owned by the division and the revenue derived therefrom shall be exempt from all taxation in the State of South Carolina except for inheritance, estate or transfer taxes; and all trust indentures made pursuant to the provisions of this article shall be exempt from South Carolina stamp and transfer taxes.