S.C. Code Ann. § 55-9-270: Zoning regulations for airport hazard areas outside territory of political subdivision.

When an airport hazard area appertaining to an airport owned or controlled by a county, municipality, or political subdivision is located outside the territorial limits of the political subdivision, the political subdivision owning or controlling the airport, and the county, municipality, or political subdivision within which the airport hazard area is located, may by ordinance adopt, administer, and enforce airport zoning regulations applicable to the airport safety zones, airport land use zones, and airport hazards.