Unless grounds clearly are present warranting immediate discharge or suspension pending decision on discharge, employees shall be subject to corrective discipline progressively applied utilizing counseling, warnings, or suspensions, as the facts and circumstances dictate, prior to discharge. If an employee's work or work-related conduct remains unacceptable after the application of progressive corrective discipline, such employee may be discharged in accordance with the appropriate Sections in this Subpart.
Ill. Admin. Code tit. 80, § 620.1210