Ill. Admin. Code tit. 4, § 700.202
a) If an individual desires to file a Grievance, the individual shall promptly, but no later than 180 days after the alleged act of discrimination, submit the Grievance to the Designated Coordinator on the Grievance Form prescribed for that purpose. To receive proper consideration by the Designated Coordinator, the Grievance Form shall be completed in full. The completed form shall include: