S.C. Code § 7-13-352
Any candidate for a nonpartisan office, multi-county district, countywide, or less than countywide, including municipal offices, to be voted on at the time of the general election, who qualifies by statement of candidacy shall file the statement of candidacy with the authority responsible by law for conducting the election not later than twelve o'clock noon on August fifteenth or, if August fifteenth falls on Saturday or Sunday, not later than twelve o'clock noon on the following Monday. Each candidate must affirm, in writing, that he meets, or will meet by the time of the election, or as otherwise required by law, the qualifications for the office sought. The authority with whom statements of candidacy are filed must verify that each candidate meets, or will meet by the time of the general election, or as otherwise required by law, the qualifications for the office sought. Any candidate who does not, or will not by the time of the general election, or as otherwise required by law, meet the qualifications for the office sought shall not have his name placed on the ballot.
S.C. Code § 7-13-352