225 ILCS 51/115
In a case involving the refusal to issue or renew a license or the discipline of a licensee, a copy of the Board's report shall be served upon the respondent by the Department, either personally or as provided in this Act for the service of the notice of hearing. Within 20 days after such service, the respondent may present to the Department a motion in writing for a rehearing, which shall specify the particular grounds for the rehearing. If no motion for rehearing is filed, then upon the expiration of the time specified for filing the motion, or if a motion for rehearing is denied, then upon such denial the Secretary may enter an order in accordance with recommendations of the Board except as provided in Sections 110 and 120 of this Act.
225 ILCS 51/115