225 ILCS 320/35
The Department shall promulgate and publish and may from time to time amend a minimum code of standards for plumbing and the fixtures, materials, design and installation methods of plumbing systems based upon the findings of the sciences of pneumatics and hydraulics, after consideration of the recommendations of the Plumbing Code Advisory Council. By January 1, 2013, the Plumbing Code Advisory Council shall recommend amendments to the existing minimum code of standards for plumbing and the fixtures, materials, design, and installation methods of plumbing systems to reflect advances in those technologies and methods that more efficiently utilize natural resources and protect public health. Upon consideration of those recommendations, the Department shall submit the amendments to the existing minimum code of standards to the Joint Committee on Administrative Rules by May 31, 2013. The Department may promulgate and publish rules in the State's minimum code of standards for the minimum number of plumbing fixtures required for the comfort and convenience of workers and the public not inconsistent with, but not limited to, the requirements of the federal Americans With Disabilities Act, the Equitable Restrooms Act, and the U.S. Department of Labor, Office of Safety and Health Administration. The minimum code of standards for plumbing and any amendments thereto shall be filed with the Secretary of State as a public record. In preparing plumbing code standards and amendments thereto the Department may give consideration to the recommendations contained in nationally recognized plumbing codes and recommendations of nationally recognized material and equipment testing laboratories. The plumbing code promulgated by the Department under authority of this Act shall remain in effect as the minimum code authorized by this Act until the Department promulgates a new code under authority of this Act. At least 20 days' notice of a public hearing shall be given by the Department in a manner which the Department considers adequate to bring the hearing to the attention of persons interested in plumbing code standards. Notice of any public hearing shall be given by the Department to those who file a request for a notice of hearings.
225 ILCS 320/35