Section 210 ILCS 45/3-704A request for a hearing by aggrieved persons shall be taken to the Department as follows:
(a) Upon the receipt of a request in writing for a hearing, the Director or a person designated in writing by the Director to act as a hearing officer shall conduct a hearing to review the decision.(b) Before the hearing is held notice of the hearing shall be sent by the Department to the person making the request for the hearing and to the person making the decision which is being reviewed. In the notice the Department shall specify the date, time and place of the hearing which shall be held not less than 10 days after the notice is mailed or delivered. The notice shall designate the decision being reviewed. The notice may be served by delivering it personally to the parties or their representatives or by mailing it by certified mail to the parties' addresses.(c) The Department shall commence the hearing within 30 days of the receipt of request for hearing. The hearing shall proceed as expeditiously as practicable, but in all cases shall conclude within 90 days of commencement.