South Carolina Code of State Regulations: Prior to 2011 issued as loose-leaf vols. in Code of laws of South Carolina, 1976, annotated. Current edition may be held at South Carolina State Library. Georgetown Law Students may request scans via Interlibrary Loan.
In Westlaw, see also historical regulations, currently proposed & adopted regulations, and regulation tracking which can be found on the state's Regulations page.
State registers and regulation tracking are offered by Lexis.
In Bloomberg Law, proposed, final, emergency, temporary, and interim rules, plus regulatory notices can be found under Rulemaking within a state's Regulatory and Administrative page.