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    PRESS RELEASE

    IAPMO 2022 WE•Stand Monograph Now Available

    IAPMO 2022 WE•Stand Monograph Now Available

    Ontario, Calif. — The International Association of Plumbing and Mechanical Officials (IAPMO®) has made the 2022 Water Efficiency and Sanitation Standard (WE•Stand) Technical Committee Meeting Monograph available for download.

    All individuals anticipating an active role in the ANSI-accredited consensus development of the WE•Stand at the technical committee meetings, June 22-23, in Ontario, California, will want to download these documents in Adobe PDF format HERE.

    Hardcopy versions will not be available at the meetings.

    The Technical Committee Meeting Monograph contains every change proposal submitted for the 2023 edition of the WE•Stand as part of the American National Standards Institute (ANSI)-accredited consensus code development process employed by IAPMO.

    Topic areas for proposed changes to the WE•Stand include: onsite wastewater treatment systems for direct potable water reuse; onsite gray water treatment systems; gray water ready plumbing; the Water Demand Calculator (WDC); reverse osmosis water treatment systems; water efficiency rating systems and methodologies; urine diversion system design and treatment methods; sustainable landscape design and installation; plant and irrigation system limitations; plant grouping via hydrozones; irrigation control systems; irrigation zone performance criteria; stormwater management and rainwater retention; water metering applications; leak detection and control; maximum hot water system ratios; commercial pre-rinse spray valves; and steam sterilizers.

    IAPMO urges its members and other interested parties to get involved in the code development process to ensure effectiveness in preserving the public’s health, safety, and welfare through fair and balanced development of the WE•Stand. Installers, plumbing officials, the construction industry, engineers, and manufacturers all benefit from a cooperative effort in developing codes and standards.

    For specific information about the WE•Stand Technical Committee, please contact Taylor Duran at (909) 218-8126 or e-mail your question to 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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