5 ILCS 100/5-6: Rulemaking conditions.

All rulemaking authority exercised on or after the effective date of this amendatory Act of the 96th General Assembly is conditioned on the rules being adopted in accordance with all provisions of this Act and all rules and procedures of the Joint Committee on Administrative Rules (JCAR); any purported rule not so adopted, for whatever reason, including without limitation a decision of a court of competent jurisdiction holding any part of this Act or the rules or procedures of JCAR invalid, is unauthorized.