S.C. Code Ann. § 1-1-540

State, county and municipal officers, departments, boards and commissions, and all school districts in this State, shall require applications in writing for employment by them, upon such application forms as they may severally prescribe, which shall include information as to active or honorary membership in or affiliation with all membership associations and organizations. The provisions of this section shall not apply to any office or position which by law is filled by the vote of the qualified electors in any general or special election.