225 ILCS 63/125
The Department may investigate the actions of any applicant or of any person or persons holding or claiming to hold a license. Before refusing to issue, refusing to renew, or taking any disciplinary action under Section 110 regarding a license, the Department shall, at least 30 days prior to the date set for the hearing, notify in writing the applicant for, or holder of, a license of the nature of any charges and that a hearing will be held on a date designated. The Department shall direct the applicant or licensee to file a written answer with the Department under oath within 20 days after the service of the notice and inform the applicant or licensee that failure to file an answer shall result in default being taken against the applicant or licensee. At the time and place fixed in the notice, the Department shall proceed to hear the charges and the parties or their counsel shall be accorded ample opportunity to present any pertinent statements, testimony, evidence, and arguments. The Department may continue the hearing from time to time. If the person, after receiving the notice, fails to file an answer, his or her license may, in the discretion of the Department, be revoked, suspended, or placed on probationary status or the Department may take whatever disciplinary action considered proper, including limiting the scope, nature, or extent of the person's practice under the Act. If the Board is not sitting at the time and place fixed in the notice or at the time and place to which the hearing shall have been continued, the Department may continue the hearing for a period not to exceed 30 days. The written notice in the subsequent proceeding may be served by U.S. mail or email to the licensee's address or email address of record.
225 ILCS 63/125