30 ILCS 10/3003

(a) By May 1 of each year, each chief executive officer of all State agencies shall, on the basis of an evaluation conducted in accordance with guidelines established under Section 3002, prepare and transmit to the Auditor General a certification that: (1) the systems of internal fiscal and administrative controls of the State agency fully comply with the requirements of this Act; or (2) the systems of internal fiscal and administrative controls of the State agency do not fully comply with the requirements of this Act. (b) If the systems do not fully comply with the requirements of this Act, the certification shall include a report describing any material weaknesses in the systems of internal fiscal and administrative controls and the plans and schedule for correcting the weaknesses, or a statement of the reasons why the weaknesses cannot be corrected.