S.C. Code Ann. § 8-13-1354: Identification of person independently paying for election-related communication; exemptions.

A candidate, committee, or other person which makes an expenditure in the distribution, posting, or broadcasting of a communication to voters supporting or opposing a public official, a candidate, or a ballot measure must place his name and address on the printed matter or have his name spoken clearly on a broadcast so as to identify accurately the person and his address. Campaign buttons, balloons, yard signs, or similar items are exempt from this requirement.