S.C. Code Ann. § 48-57-90: Construction.

Nothing in this chapter limits, waives, or abrogates:

(1) the scope or nature of any statutory or common law privilege, including the work-product privilege or the attorney-client privilege;

(2) any existing ability or authority under state law to challenge privilege; or

(3) the department's authority to obtain or use documents or information that the department otherwise has the authority to obtain under state regulations promulgated pursuant to federally-approved programs.