210 ILCS 100/13
The Department shall in any proceeding to suspend, revoke or refuse to issue a license or permit, first serve or cause to be served upon the applicant, or licensee a written notice specifying the way or ways in which such applicant or licensee has failed to comply with this Act, or any rules, regulations or standards promulgated by the Department pertaining thereto. In the case of a revocation or suspension, this notice shall require the licensee to remove or abate such violation, insanitary or objectionable condition, specified in such notice, within 5 days or within a longer period of time as may be allowed by the Department; if the licensee fails to comply with the terms and conditions of the notice, within the time specified or such extended period of time, the Department may revoke or suspend such license or permit. If an applicant fails to comply with the Act, rules or regulations or standards promulgated thereunder, the Department may refuse to issue a license.
210 ILCS 100/13