Department of Licensing and Regulatory Affairs  
Bureau of Construction Codes  
Administrative Rules for Construction Code - Part 9A Mechanical Code  
Rule Set 2022-55 LR  
NOTICE OF PUBLIC HEARING  
Tuesday, August 22, 2023  
01:00 PM  
Michigan Library & Historical Center. First Floor Forum  
Michigan Historical Center, 702 W Kalamazoo St, Lansing, MI 48915  
The Department of Licensing and Regulatory Affairs will hold a public hearing to receive public  
comments on proposed changes to the Construction Code - Part 9A Mechanical Code rule set.  
The proposed rules will adopt by reference the 2021 edition of the International Mechanical Code (IMC),  
with amendments, deletions, and additions deemed necessary for use in Michigan. Part 9a. of the  
Construction Code currently adopts by reference the 2015 edition of the IMC, which is based on  
mechanical principals used in mechanical codes across the country. Part 9A also includes rules that  
amend the IMC to address mechanical practices that are specific to Michigan and delete those  
requirements in the IMC that do not pertain to Michigan because of the state’s geographic and  
environmental features.  
The proposed rules will provide the latest standards to protect the health and promote the safety and  
welfare of Michigan’s residents by regulating the installation and inspection of mechanical equipment  
and systems within the state.  
By authority conferred on the director of the department of licensing and regulatory affairs by section 4 of  
the Stille-DeRossett-Hale single state construction code act, 1972 PA 230, MCL 125.1504, and  
Executive Reorganization Order Nos. 2003-1, 2008-4 and 2011-4, MCL 445.2011, 445.2025 and  
445.2030.  
The proposed rules will take effect 120 days after filing with the Secretary of State. The proposed rules  
are published on the State of Michigan's website at www.michigan.gov/ARD and in the 8/15/2023 issue  
of the Michigan Register. Copies of these proposed rules may also be obtained by mail or electronic mail  
at the following email address: Lara-bcc-rules@michigan.gov.  
Comments on these proposed rules may be made at the hearing, by mail, or by electronic mail at the  
following addresses until 9/5/2023 at 05:00PM.  
Attn: Tony Williamson, Bureau of Constuction Codes P.O. Box 30254, Lansing, MI 48909  
Bureau of Construction Codes, P.O Box 30254, Lansing, MI 48909  
Lara-bcc-rules@michigan.gov  
The public hearing will be conducted in compliance with the 1990 Americans with Disabilities Act. If the  
hearing is held at a physical location, the building will be accessible with handicap parking available.  
Anyone needing assistance to take part in the hearing due to disability may call 517-388-3536 to make  
arrangements.  
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