Bonds, notes, debentures and other evidences of indebtedness of an authority are declared to be issued for a public purpose and to be public instrumentalities and, together with interest thereon, shall be exempt from taxes.
Tax exemption of bonds, notes, etc
S.C. Code Ann. § 31-3-1610, under Title 31, Chapter 3.
S.C. Code Ann. § 31-3-1610