S.C. Code § 6-10-70
Under the provisions of Chapter 34, Title 1, an agency is required to adopt the latest edition of a nationally recognized code which it is charged by statute or regulation with enforcing by giving notice in the State Register.
2009 Act No. 46 Section 3, effective July 1, 2009, provides as follows:
"The provisions of this act do not apply to projects which have received the proper permits as required by law before the effective date of this act."