The chairman of the board of inquiry, or his designee, shall have the following powers:
(a) To designate parties to the hearing and revoke such designations;
(b) To open, continue, or adjourn the hearing;
(c) To determine the admissibility of and to receive evidence and to regulate the course of the hearing;
(d) To dispose of procedural requests or similar matters; and
(e) To take any other action necessary or incident to the orderly conduct of the hearing. [44 FR 34419, June 14, 1979; 44 FR 39181, July 5, 1979]