225 ILCS 422/160
In any hearing involving disciplinary action against a license holder or recovery permit holder, a copy of the Commission's report shall be served upon the respondent by the Commission, either personally or as provided in this Act for the service of the notice of hearing. Within 20 calendar days after service, the respondent may present to the Commission a motion in writing for a rehearing that shall specify the particular grounds for rehearing. If no motion for rehearing is filed, then upon the expiration of the time specified for filing a motion, or if a motion for rehearing is denied, then upon denial, the Commission may enter an order in accordance with its own recommendations except as provided in this Act. If the respondent orders from the reporting service, and pays for, a transcript of the record within the time for filing a motion for rehearing, then the 20 calendar day period within which a motion may be filed shall commence upon the delivery of the transcript to the respondent.
225 ILCS 422/160