15 ILCS 15/3.1
"Agency directly responsible to the Governor" or "agency" means any office, officer, division, or part thereof, and any other office, nonelective officer, department, division, bureau, board, or commission in the executive branch of State government, except that it does not apply to any agency whose primary function is service to the General Assembly or the Judicial Branch of State government, or to any agency administered by the Attorney General, Secretary of State, State Comptroller or State Treasurer. In addition the term does not apply to the following agencies created by law with the primary responsibility of exercising regulatory or adjudicatory functions independently of the Governor:
(Source: P.A. 101-81, eff. 7-12-19; 102-538, eff. 8-20-21.)