S.C. Code § 8-13-1356
2013 Act No. 61, Section 14, provides as follows:
"SECTION 14. This act takes effect upon preclearance approval by the United States Department of Justice or approval by a declaratory judgment issued by the United States District Court for the District of Columbia, whichever occurs first."
The amendment by 2013 Act No. 61 became effective June 25, 2013, see South Carolina Libertarian Party v. South Carolina State Election Com'n, 407 S.C. 612, 757 S.E.2d 707 (2014).