5 ILCS 430/5-50
(b) "Ex parte communication" means any written or oral communication by any person that imparts or requests material information or makes a material argument regarding potential action concerning regulatory, quasi-adjudicatory, investment, or licensing matters pending before or under consideration by the agency. "Ex parte communication" does not include the following:
(d) "Interested party" means a person or entity whose rights, privileges, or interests are the subject of or are directly affected by a regulatory, quasi-adjudicatory, investment, or licensing matter. For purposes of an ex parte communication received by either the Illinois Commerce Commission or the Illinois Power Agency, "interested party" also includes:
(e) This Section applies to the following agencies:
Executive Ethics Commission
Illinois Commerce Commission
Illinois Power Agency
Educational Labor Relations Board
State Board of Elections
Illinois Gaming Board
Health Facilities and Services Review Board
Illinois Workers' Compensation Commission
Illinois Labor Relations Board
Illinois Liquor Control Commission
Pollution Control Board
Property Tax Appeal Board
Illinois Racing Board
Illinois Purchased Care Review Board
Illinois State Police Merit Board
Motor Vehicle Review Board
Prisoner Review Board
Civil Service Commission
Personnel Review Board for the Treasurer
Merit Commission for the Secretary of State
Merit Commission for the Office of the Comptroller
Court of Claims
Board of Review of the Department of Employment Security
Department of Insurance
Department of Professional Regulation and licensing boards
under the Department
Department of Public Health and licensing boards under the
Department
Office of Banks and Real Estate and licensing boards under
the Office
State Employees Retirement System Board of Trustees
Judges Retirement System Board of Trustees
General Assembly Retirement System Board of Trustees
Illinois Board of Investment
State Universities Retirement System Board of Trustees
Teachers Retirement System Officers Board of Trustees
(Source: P.A. 102-538, eff. 8-20-21; 102-662, eff. 9-15-21; 102-813, eff. 5-13-22.)