S.C. Code Ann. § 5-19-210

A six months' period shall elapse from the date of employment of new and additional officers and men under the terms and conditions of the ordinance establishing the commission during which six months' probation period the commission may discharge such officers or employees without cause and without a hearing, at its discretion. But after such six months' probation period, no officer or employee may be discharged except as provided for in SECTIONS 5-19-240, 5-19-260, and 5-19-270.