S.C. Code Ann. § 8-13-740
(A)
(2) A member of the General Assembly, an individual with whom he is associated, or a business with which he is associated may not knowingly represent another person before a governmental entity, except:
(4) A public official, public member, or public employee of a county may not knowingly represent a person before an agency, unit, or subunit of that county for which the public official, public member, or public employee has official responsibility except:
(6) A public employee, other than those specified in items (4) and (5) of this subsection, receiving compensation other than reimbursement or per diem payments for his official duties, an individual with whom he is associated, or a business with which he is associated may not knowingly represent a person before an entity on the same level of government for which the public official, public member, or public employee has official responsibility except:
(7) The restrictions set forth in items (1) through (6) of this subsection do not apply to: