Notwithstanding any provision of this code to the contrary, the Office of Administrative Hearings has jurisdiction to hear and determine all:
(1) Level one grievance proceedings for all divisions of the department, except for the State Police.
(2) Appeals from decisions or orders of the State Fire Commission, except as otherwise provided in §15A-10-9(b) of this code;
(3) Other matters for which a hearing examiner is necessary within the department or any division of the department; and
(4) Other matters which may be conferred upon the office by statute or legislatively approved rules.