S.C. Code Ann. § 7-13-120: Candidates and their relatives may not be managers or clerks.

(1) It shall be unlawful for a candidate or the spouse, parents, children, brothers or sisters of a candidate for public office to work as a manager or clerk of election at a polling place where such candidate's name appears on the ballot.

(2) Any person violating the provisions of this section shall be deemed guilty of a misdemeanor and upon conviction fined not more than one hundred dollars or imprisoned for not more than thirty days.