CODE DEVELOPMENT

    IAPMO Codes are developed in accordance with an American National Standards Institute (ANSI) accredited development process

    IAPMO Codes and Standards provides innovative codes and standards solutions for the protection of the public’s health, safety and welfare. We address the world’s codes and standards needs to improve life for a better, more resilient tomorrow.

    RECENT NEWS

    Interested parties are encouraged to download the ROC's on the following links:

    2025 UPC Report on Comments
    2025 UMC Report on Comments

    The Technical Committee meeting monographs are now available. Interested parties are encouraged to download the monographs via the following links:

    2025 USPSHTC TC Meeting Monograph          2025 USPSHTC TC Actions

    2025 USHGC TC Meeting Monograph              2025 USHGC TC Actions

    2025 WE•Stand TC Meeting Monograph          2025 WE•Stand TC Actions

    The 2027 UPC/UMC Code Development Timeline is now available for download.
    The 2027 USPSHTC/USHGC Code Development Timeline is now available for download.
    The 2027 WESTAND Code Development Timeline is now available for download.

    IAPMO Codes Portal

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

    IAPMO Codes App

    The IAPMO Codes app provides mobile access to IAPMO's published codes, such as the Uniform Plumbing Code (UPC), Uniform Mechanical Code (UMC), and others. It allows users to view their purchased code books, make annotations and voice recordings, and access code-related information, even offline. The app also facilitates engagement with the code development process, including access to timelines, notifications, and contact information for technical staff.

    Download on the App Store       Get it on Google Play

    ANSI-ACCREDITED DEVELOPMENT PROCESS

    With its Uniform Plumbing CodeUniform Mechanical CodeUniform Solar, Hydronic and Geothermal CodeUniform Swimming Pool, Spa and Hot Tub Code; and Water Efficiency and Sanitation Standard (WE•Stand) designated as American National Standards, IAPMO is proud to utilize an open consensus process accredited by the American National Standards Institute (ANSI) in its code development practice.

    Click here to learn more about the IAPMO Codes and Standards development process.

    BUILDING TRUE CONSENSUS

    IAPMO gathers the largest assembly of plumbing and mechanical experts in the world at its annual education and business conference, where anyone — members and non-members alike — can have a voice on proposed changes to the code.

    The purpose of the IAPMO code development process is to ensure the continued development and maintenance of the Uniform Codes with the following goals in the forefront:

    • Effectiveness in preserving the public health, safety, and welfare.
    • The timely evaluation and recognition of technological developments pertaining to construction regulations.
    • A consensus process, which provides for the open discussion of proposals by all parties who wish to participate.

    IAPMO urges its members and other interested parties to get involved in the code development process to ensure that these goals are maintained. Installers, plumbing and mechanical officials, the construction industry, engineers, and manufacturers all benefit from a cooperative effort in developing codes.

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