PRESS RELEASE

    IAPMO Seeks Public Input on Manual of Recommended Practice for Hydrogen Fuel Gas Piping

    IAPMO Seeks Public Input on Manual of Recommended Practice for Hydrogen Fuel Gas Piping

    Ontario, Calif. — The International Association of Plumbing and Mechanical Officials (IAPMO®) has opened the public review period for the initial draft of the Manual of Recommended Practice for Hydrogen Fuel Gas Piping.

    IAPMO initiated the Hydrogen Fuel Gas Piping Task Group — which consisted of industry experts from across the nation and abroad — in March 2022 to create a manual to develop code-enhanced and adoptable language for hydrogen gas piping systems. The task group’s work culminated in the release of this manual, which addresses the recommended practices for hydrogen fuel gas piping systems and includes annex materials for hydrogen fuel gas admixtures. While developed as a guidance document, it is written in mandatory language so building and health departments can easily adopt and codify the requirements. Additionally, this standalone manual includes excerpts from the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®).

    “Embracing hydrogen as a viable energy source is crucial in our journey toward sustainability,” IAPMO Director of Technical Services and Research John A. Mullen said. “It remains highly critical that the materials used in hydrogen gas piping meet the highest standards for safety, longevity and corrosion resistance. By establishing this task group, we’re mobilizing a team of industry experts to ensure professional installers are equipped to safely transport hydrogen fuel gas through piping in our buildings.” 

    The IAPMO manual may be downloaded for free HERE.

    For questions, please contact John A. Mullen at (631) 994-4774 or john.mullen@iapmo.org, or Christoph Lohr at (909) 731-0219 or christoph.lohr@iapmo.org

    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.

    Shirley Dewi Promoted to Executive Vice President of IAPMO R&T

    05 October 2026

    IAPMO® is pleased to announce that Shirley Dewi has been promoted to executive vice president of IAPMO R&T, where she will provide strategic leadership and oversight for the organization’s certification and compliance operations, including Product Certification, the Systems Certification Body (SCB) and Continuous Compliance.

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