PRESS RELEASE

    Report on Proposals Toward Development of 2027 UPC and UMC Now Available for Online Download

    Report on Proposals Toward Development of 2027 UPC and UMC Now Available for Online Download

    Ontario, Calif. — The International Association of Plumbing and Mechanical Officials (IAPMO), developer of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®), has posted online the 2024 Report on Proposals (ROP) for the 2027 editions of these eight-time American National Standard-designated model codes.

    No hardcopy editions of these publications will be printed or distributed. Interested parties are encouraged to download the documents at the following URLs:

    UPC: https://codes.iapmo.org/docs/2027/UPC/2024%20UPC%20Report%20on%20Proposals.pdf

    UMC: https://codes.iapmo.org/docs/2027/UMC/2024%20UMC%20Report%20on%20Proposals.pdf

    IAPMO will begin the Call for Comments on these documents on Sept. 6. All suggested code amendments/ additions/deletions published in the ROP will be available for public review, and no comments will be accepted after the 5 p.m. PST deadline of Jan. 17, 2025.

    Eligible IAPMO members in attendance during the UPC and UMC Assembly Consideration Session will have the opportunity to vote on an Assembly Comment. This session will take place at IAPMO’s 95th annual Education and Business Conference, Sept. 24, at Planet Hollywood in Las Vegas.

    IAPMO employs a consensus development process accredited by the American National Standards Institute (ANSI), gathering the largest assembly of plumbing and mechanical experts in the world at its annual Education and Business Conference and Technical Committee meetings, enabling anyone — members and non-members alike — to propose changes to the code.

    IAPMO urges its members and other interested parties to get involved in the code development process to ensure effectiveness in preserving public health, safety and welfare. Installers, plumbing and mechanical officials, the construction industry, engineers, and manufacturers all benefit from a cooperative effort in developing codes.

    For questions about submitting comments for the UPC, contact Enrique Gonzalez at (909) 230-5535 or enrique.gonzalez@iapmo.org. For questions about submitting comments for the UMC, contact Taylor Duran at (909) 218-8126 or taylor.duran@iapmo.org.

    ASSE Seeks Working Group Members to Update National Standard ASSE/IAPMO/ANSI 5000

    03 November 2026

    ASSE International is seeking members for a working group to update ASSE/IAPMO/ANSI 5000, Cross-Connection Control Professional Qualifications Standard. ASSE 5000 working group members will be assisting the Professional Qualifications Standards Committee (PQSC) with the ongoing maintenance and revision of this American National Standard.

    IAPMO Announces Publication of IAPMO/ANSI/CAN Z1403-2026, Water Demand Calculator

    14 October 2026

    IAPMO® is pleased to announce the publication of IAPMO/ANSI/CAN Z1403-2026, Water Demand Calculator®, a new American National Standard and National Standard of Canada that provides a modern, statistically based method for estimating peak water demand in single-family and multifamily residential buildings. 

    SCB Issues First AAC Certification Program Certificates

    08 October 2026

    IAPMO’s Systems Certification Body (SCB) has issued the first certificates under the Aluminum Anodizers Council (AAC) Certification Program, providing independent third-party verification of conformity with established performance requirements for anodized aluminum finishes and products.

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