S.C. Code Ann. § 40-69-40
The Board shall organize by electing a chairman, a vice-chairman, and a secretary-treasurer. The officers of the Board shall hold office for terms of one year and until their successors are elected and qualify. The Board shall meet at least once a year and at such other times as may be ordered by the chairman. Any action of the Board may be taken at any regular or special meeting and a majority of the members of the Board shall constitute a quorum.