S.C. Code Ann. § 44-20-220

The Director of the Department of Behavioral Health and Developmental Disabilities shall determine the policy and promulgate regulations governing the operation of the office and the employment of professional staff and personnel. Subject to the approval of the Director of the Department of Behavioral Health and Developmental Disabilities, the office director may appoint advisory committees it considers necessary to assist in the effective conduct of the office's responsibilities. The office director may educate the public and state and local officials as to the need for the funding, development, and coordination of services for persons with an intellectual disability, related disabilities, head injuries, and spinal cord injuries and promote the best interest of persons with an intellectual disability, related disabilities, head injuries, and spinal cord injuries.