(a) A person aggrieved by an act or omission to act of the department under this chapter is entitled, upon request, to a hearing. The commissioner shall establish a board to hear complaints of persons aggrieved by an act or omission to act of the commissioner or any employee of the department pertaining to the administration of this chapter. The procedure established in this chapter for the handling of complaints and grievances shall be exclusive and these procedures shall apply to all such complaints and grievances. The commissioner shall promulgate rules and regulations governing the membership of the board and the organization thereof.

(b) Hearings conducted under subsection (a) of this Code section shall be conducted under the terms and conditions of Chapter 13 of Title 50, the "Georgia Administrative Procedure Act," and court review of such hearings shall be as provided by that chapter.