15 ILCS 405/6.01
The Comptroller shall specify and establish the financial accounting and reporting standards and principles to be used by all State government and State agencies. The standards and principles shall be effective upon filing by the Comptroller with the Auditor General. The Comptroller shall maintain and publish the standards and principles as a public document. These standards and principles shall be known as the Generally Accepted Accounting Standards and Principles for Illinois State Government, and shall, whenever possible, be compatible with any similar nationally existing generally accepted accounting standards and principles for government.
In establishing the Generally Accepted Accounting Standards and Principles for Illinois State Government, the Comptroller shall consult with the Governor and the other members of the Executive Branch, the Chief Justice of the Supreme Court, and the leadership of the General Assembly and shall provide to these officials draft copies of any proposed standards at least 90 days prior to their adoption and shall consider any responses or suggestions that these officials may present.
15 ILCS 405/6.01