S.C. Code § 44-3-10
Municipal corporations of this State may establish and maintain a board of health which shall be authorized by the governing body of the municipality. The composition and method of selection of the board shall be within the discretion of the governing body of the municipality. The duties and powers of the board shall be designated by such governing body. However, the board and its employees shall function under the administration, control, guidance and direction of the Department of Health and Environmental Control. The rules and regulations or operational procedures of any board established hereunder shall not be in conflict with any rule, regulation, or procedure of the Department of Health and Environmental Control, and in the event of any conflict, the rules, regulations and procedures of the Department of Health and Environmental Control shall prevail. Municipal boards of health shall, when requested by the Department of Health and Environmental Control, make reports on their activities to the Department of Health and Environmental Control.
S.C. Code § 44-3-10