S.C. Code Ann. § 1-1-697

Neither this State nor any political subdivision thereof shall require, by law, ordinance, regulation, order, decree, program, or policy, the use of any language other than English; provided, however, that nothing in SECTIONS 1-1-696 through 1-1-698 shall prohibit a state agency or a political subdivision of the State from requiring an applicant to have certain degrees of knowledge of a foreign language as a condition of employment where appropriate.