Ill. Admin. Code tit. 77, § 220.1500
c) Each plan of correction shall be based on an assessment by the Model of the conditions or occurrences that are the basis of the violations and an evaluation of the practices, policies, and procedures that have caused or contributed to the conditions or occurrences. Evidence of such assessment and evaluation shall be maintained by the Model. Each plan of correction shall include:
f) The Department shall review each plan of correction to ensure that it provides for the abatement, elimination, or correction of the violation. The Department shall reject a submitted plan only if it finds any of the following deficiencies: