S.C. Code Ann. § 40-49-360

Nothing in this article contained shall modify, restrict, impair or affect the provisions of Article 1 of this chapter or the validity and applicability of any rules or regulations relating to the construction of plumbing or sewerage promulgated by the county health board of any county in which this article is applicable or the validity and applicability of the ordinances of any municipality adopted under said Article 1 or of any rules and regulations promulgated thereunder or of any certificates issued thereunder.