S.C. Code § 38-71-290
2005 Act No. 76, Section 4, provides as follows:
"This act does not apply to a health insurance plan that is individually underwritten and does not apply to a health insurance plan provided to a small employer, as defined by Section 38-71-1330(17) of the 1976 Code."
2009 Act No. 50 Section 6 provides as follows:
"This act takes effect upon approval by the Governor and applies to group health plans for plan years beginning after October 2, 2009."