S.C. Code Ann. § 39-9-100: Powers and duties of county and municipal weights and measures officials.

Weights and measures officials appointed for a county or municipality have the duties and powers enumerated in this chapter, except duties and powers reserved to the State by law or regulation. These powers and duties extend to their respective jurisdictions, except the jurisdiction of a county official does not extend to a municipality for which a weights and measures official has been appointed. No requirement set forth by local agencies may be less stringent than or in conflict with state requirements.