Prior to adopting or amending any ordinance pursuant to § 46.2-1232 or 46.2-1233, the local governing body shall appoint an advisory board to advise the governing body with regard to the appropriate provisions of the ordinance. Members of the advisory board shall only consist of an equal number of representatives of local law-enforcement agencies and representatives of licensed towing and recovery operators, and one member of the general public. Any such advisory board shall meet at least once per year at the call of the chairman of the advisory board, who shall be elected annually from among the members of the advisory board by a majority vote. The chairmanship of any such advisory board for any locality within Planning District 8 shall be for a term of one year and rotate annually between a representative of a local law-enforcement agency, a representative of a licensed towing and recovery operator, and one member of the general public.