S.C. Code Ann. § 55-9-230
Counties, municipalities or other political subdivisions of this State acquiring, establishing, developing, operating, maintaining, controlling or having an interest in airports or landing fields, without the geographical limits of such subdivisions, under the provisions of this chapter may promulgate, amend and enforce police regulations for such airports or landing fields, irrespective of whether or not the title to the properties is vested in, and the management and operation of any such airport or landing field is by, a commission created by statute or otherwise.