65 ILCS 5/11-19.2-4
When a sanitation inspector observes or otherwise discovers a code violation, he shall note the violation on a violation notice and report form, indicating the name and address of the respondent, if known, the name, address and State vehicle registration number of the waste hauler who deposited the waste, if applicable, a citation to the specific code provision or provisions alleged to have been violated, a description of the circumstances present that constitute the alleged violation , the date and time the violation was observed, the names of witnesses to the violation, and the address of the location or property where the violation is observed.
The violation notice and report form shall contain a file number and a hearing date noted by the sanitation inspector in the blank spaces provided for that purpose on the form. The violation notice and report form shall state that failure to appear at the hearing on the date indicated may result in a determination of liability for the cited violation and the imposition of fines and assessment of costs as provided by the applicable municipal ordinance. The violation notice and report form shall also state that upon a determination of liability and the exhaustion or failure to exhaust procedures for judicial review, any unpaid fines or costs imposed will constitute a debt due and owing the municipality.
A copy of the violation notice and report form shall be served upon the respondent either personally or by first class mail, postage prepaid, and sent to the address of the respondent. If the municipality has an ordinance requiring all or certain property owners to register with the municipality, service may be made on the respondent property owner by mailing the violation notice and report to the owner's address registered with the municipality. If the name of the respondent property owner cannot be ascertained or if service on such respondent cannot be made by mail, service may be made on the respondent property owner by posting a copy of the violation notice and report form in a prominent place upon the property where the violation is found, not less than 10 days before the hearing is scheduled.
65 ILCS 5/11-19.2-4