15 ILCS 410/10
The Director shall prepare and submit to the Merit Commission proposed rules for all positions and employees subject to this Act. Such rules or any part thereof shall have the force and effect of law. Copies of all such rules, and of all changes therein, duly certified by the Director, shall be filed in the Office of the Secretary of State. Except as otherwise provided in this Section, rules shall be adopted as provided in the Illinois Administrative Procedure Act. After a hearing thereon, proposed new rules or amendments may be revised by the Director without further hearing to incorporate changes suggested at such public hearing, and the Director may submit same to the Merit Commission with or without revision. If proposed new rules or amendments so submitted are not disapproved by the Commission within 30 calendar days after the Commission's receipt thereof, they may be filed by the Director in the Office of the Secretary of State, and shall thereafter have the force and effect of law, subject to the provisions of the Illinois Administrative Procedure Act.
The rules and amendments thereto shall include provisions as specified in Sections 10a through 10e.
15 ILCS 410/10