225 ILCS 412/120
In any case involving the refusal to issue or renew a license, or the discipline of a licensee, a copy of the hearing officer's report shall be served upon the respondent by the Secretary , either personally or as provided in this Act for the service of the notice of hearing. Within 20 days after service, the respondent may present to the Department a motion in writing for a rehearing which 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 Secretary may enter an order in accordance with the recommendation of the hearing officer. 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, the 20-day period within which a motion may be filed shall commence upon the delivery of the transcript to the respondent.
225 ILCS 412/120