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Administration (18-28-101 et seq.)

Municipal Code of Chicago tit. 18, ch. 18-28, art. I
in effect

Municipal Code of Chicago § 18-28-101.2 Scope.

18-28-101.2 Scope. This chapter shall regulate the design, installation, maintenance, alteration and inspection of mechanical systems that are permanently installed and utilized to control environmental conditions and related processes within buildings, and any mechanical system, system component, equipment and appliance specifically addressed herein.

Municipal Code of Chicago § 18-28-101.3 Intent.

18-28-101.3 Intent. The purpose of this chapter is to provide minimum standards to safeguard life or limb, health, property and public welfare by regulating and controlling the design, construction, installation, quality of materials, location, operation and maintenance or use of mechanical systems.

Municipal Code of Chicago § 18-28-102.1 General.

18-28-102.1 General. The provisions of this chapter shall apply to all matters affecting or relating to structures and premises, as set forth in Sections 18-28-101.2 through 18-28-101.3. If different sections of this chapter specify different materials, methods of construction or other requirements, the most restrictive requirement shall govern.

Municipal Code of Chicago § 18-28-102.2 Existing installations.

18-28-102.2 Existing installations. Except as otherwise provided for in this article, no provision in this chapter shall require the removal, alteration or abandonment of, nor prevent the continued use and maintenance of, an existing mechanical system lawfully in existence at the time of the adoption of this chapter.

Municipal Code of Chicago § 18-28-102.3 Maintenance.

18-28-102.3 Maintenance. Mechanical systems, both existing and new, and all parts thereof shall be maintained in proper operating condition in accordance with the original design and in a safe and sanitary condition. Any device or safeguard which is required by this chapter shall be maintained in compliance with the provisions under which it was installed. The owner or the owner's designated agent shall be responsible for the maintenance of mechanical systems. To determine compliance with this provision, the Building Commissioner shall have the authority to require a mechanical system to be reinspected.

Municipal Code of Chicago § 18-28-102.4 Additions, alterations or repairs.

18-28-102.4 Additions, alterations or repairs. All additions to, alterations and renovations of a mechanical system shall conform to the requirements for a new mechanical system without requiring the existing mechanical system to comply in its entirety with all of the requirements of this chapter. Additions, alterations or repairs shall not cause an existing mechanical system to become unsafe, hazardous or overloaded.

Municipal Code of Chicago § 18-28-102.5 Change in occupancy.

18-28-102.5 Change in occupancy. It shall be unlawful to change the occupancy of any structure if that change will subject the structure to any provision of the Chicago Construction Codes applicable to the new occupancy without first obtaining a building permit. (Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1; Amend Coun. J. 9-14-21, p. 35949, Art. I, § 1)

Municipal Code of Chicago § 18-28-102.7 Moved buildings.

18-28-102.7 Moved buildings. Except as provided in Section 18-28-102.2 and Title 14R, mechanical systems that are a part of buildings or structures moved into or within the corporate limits of the City of Chicago shall comply with the provisions of this chapter for new installations. (Amend Coun. J. 9-14-21, p. 35949, Art. I, § 1)

Municipal Code of Chicago § 18-28-102.8 Referenced chapters and standards.

18-28-102.8 Referenced chapters and standards. The codes and standards referenced in this chapter shall be those that are listed in Chapter 18-36. Such codes and standards shall be considered as part of the requirements of this chapter to the prescribed extent of each such reference. Where differences occur between provisions of this chapter and the referenced standards, the provisions of this chapter shall apply. (Amend Coun. J. 9-14-21, p. 35949, Art. I, § 1)

Municipal Code of Chicago § 18-28-102.9 Requirements not covered by this chapter.

18-28-102.9 Requirements not covered by this chapter. Requirements necessary for the strength, stability or proper operation of an existing or proposed mechanical system, or for public safety, health and general welfare, not specifically covered by the Chicago Construction Codes, shall be determined by the Building Commissioner. (Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1; Amend Coun. J. 9-14-21, p. 35949, Art. I, § 1)

Municipal Code of Chicago § 18-28-105.3 Required testing.

18-28-105.3 Required testing. Whenever there is insufficient evidence of compliance with the provisions of this chapter or evidence that a material or method does not conform to the requirements of this chapter, or in order to substantiate claims for alternative materials or methods, the Building Commissioner shall have the authority to require tests as evidence of compliance to be made at no expense to the City of Chicago. (Amend Coun. J. 9-14-21, p. 35949, Art. I, § 2)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2686354Fetched: 10/24/2026

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