A. Hearings may be closed to the public at the director's discretion, but the hearing shall be open to the public if so requested in writing by any principal party to the hearing.
B. The director shall allow any person affected by the hearing to appear in person and by counsel, to be present during the giving of all evidence, to have a reasonable opportunity to inspect all documentary evidence, to examine witnesses, to present supporting evidence and to have subpoenas issued by the director to compel attendance of witnesses and production of evidence.