210 ILCS 45/3-102

No person may establish, operate, maintain, offer or advertise a facility within this State unless and until he obtains a valid license therefor as hereinafter provided, which license remains unsuspended, unrevoked and unexpired. No public official or employee may place any person in, or recommend that any person be placed in, or directly or indirectly cause any person to be placed in any facility which is being operated without a valid license.