S.C. Code § 12-43-225
2000 Act No. 346, Section 1B, provides as follows:
"The provisions of Section 12-43-225 of the 1976 Code added by subsection A. of this section are not severable, and if a court of competent jurisdiction determines any part of the section to be unconstitutional or otherwise invalid, the entire section is therefore invalid and the provisions of Section 12-43-224 of the 1976 Code shall remain operative to provide multiple lot discounts."
2012 Act No. 179, Sections 1.B. and 5, provide as follows:
"B. No refund is allowed due to the amendments to Section 12-43-225 of the 1976 Code, as contained in this SECTION."
"SECTION 5. This act takes effect upon approval by the Governor and applies to property tax years beginning after 2011."
2014 Act No. 277, Section 2, provides as follows:
"SECTION 2. This act takes effect upon approval by the Governor and applies to property tax years beginning after 2013."