S.C. Code § 44-1-130
The Department of Health and Environmental Control may divide the State into health districts and establish in these districts advisory boards of health which shall consist of representatives from each county in the district. Boards of health now existing in the districts shall have representation on the district advisory board. Counties not having local boards of health shall be represented by individuals appointed by the county legislative delegation. The number of members of a district advisory board shall be determined by the Department with due consideration to the population and community needs of the district. District advisory boards of health shall be subject to the supervisory and advisory control of the Department. District advisory boards are charged with the duty of advising the district medical director or administrator in all matters of sanitary interest and scientific importance bearing upon the protection of the public health.
The district medical director or administrator shall be secretary of the advisory board and the district advisory board shall elect annually from its membership a chairman.
S.C. Code § 44-1-130