As used in this article:
Additions or improvements do not include minor construction or ongoing maintenance and repair of existing structures. The repair or reconstruction of a structure damaged or destroyed by a disaster, to include, but not limited to, construction defects, defective materials, fire, wind, hail, flood, and acts of God, is not an addition or improvement to the extent that the structure as repaired or reconstructed is similar in size, utility, and function of the structure damaged or destroyed, and the rebuilding or reconstruction is begun within eight years after determination of the damage or destruction. Construction of facilities in a home that make the home handicap accessible is not an addition or improvement if the utility and function of the structure remains unchanged. The installation of a fire sprinkler system in a commercial or residential structure when the installation is not required by law, regulation, or code is not an addition or improvement if the utility and function of the structure remains unchanged.
S.C. Code § 12-37-3130
2007 Act No. 57, Section 7.D, provides as follows:
"Notwithstanding the general effective date of this act [June 6, 2007], this section takes effect upon ratification of an amendment to the Constitution of this State proposed pursuant to Joint Resolution 402 of 2006 [ratified April 26, 2007] and applies for property tax years beginning after 2006."