S.C. Code Ann. § 4-21-40

The governing body of any county which engages in providing fire protection and ambulance services or medical clinic facilities is authorized to promulgate rules and regulations as deemed necessary to carry out and regulate such functions authorized by this chapter. Provided, that no rule or regulation shall become effective until the tenth day after it has been both filed with the county clerk of court and published in a newspaper having daily general circulation in the county.