2024 Ohio Code Changes

2024 Ohio Mechanical Code – Basic Online Access (free)

Below is the notice and links from the Ohio Board of Building Standards:

Subject: Notice of Building Code Update

Board of Building Standards Stakeholder:

At its meeting on August 11, 2023, the Board of Building Standards adopted the update to the Ohio Building, Mechanical & Plumbing Codes by incorporating by reference the 2021 International Building, Mechanical, Plumbing & Existing Building Codes (I-Codes) with Ohio amendments effective March 1, 2024

2024 Ohio Building, Mechanical & Plumbing Code Rules | Ohio Department of Commerce

The Board initiated the rule change process in March 2023 and the rules have been available in draft form on the Board’s website.  The final adopted rules with detailed summaries can be found at the following links:

2024 Ohio Building Code Rules Effective March 1, 2024.pdf (includes the incorporation of the 2021 IEBC with Ohio amendments)

2024 Ohio Mechanical Code Rules Effective March 1, 2024.pdf

2024 Ohio Plumbing Code Rules Effective March 1, 2024.pdf

A reminder that the Board adopted the I-Codes by reference which means that the above rules do not duplicate model code language unchanged by Ohio in the OBC, OMC & OPC rules.  Free online access to the entire 2024 Ohio Building, Mechanical, Plumbing, and Existing Building Codes with search and copy and paste functionality will be available on the International Code Council’s (ICC) Ohio eCode Bookshelf no later than November 1, 2023: Ohio Building Codes – ICC Digital Codes (iccsafe.org)

In the meantime, code users can familiarize themselves with the new codes by reviewing the 2021 I-Codes which are available for view for free on ICC’s website and compare those documents with the Ohio changes listed in the above adopted rules:

2021 International Building Code

2021 International Mechanical Code

2021 International Plumbing Code

2021 International Existing Building Code

If you have questions regarding this update, please contact the Board Office at (614) 644-2613 or BBS@com.ohio.gov.


Regina S. Hanshaw

Executive Secretary

Ohio Board of Building Standards