Ontario, Calif. — The International Association of Plumbing and Mechanical Officials (IAPMO®) has published the 2023 edition of the Water Efficiency and Sanitation Standard (WE•Stand) in both hardcopy and electronic versions, completing a three-year consensus development cycle accredited by the American National Standards Institute (ANSI). This publication can be purchased through the IAPMO web store at the following URL: https://iapmostore.org/.
The WE•Stand is developed by IAPMO to provide comprehensive requirements for optimizing water use practices attributed to the built environment while maintaining protection of the public health, safety and welfare. The 2023 WE•Stand embodies the latest advancements in water conservation practices within the built environment.
Key provisions of the 2023 WE•Stand and changes from the 2020 edition include:
In 2020, IAPMO’s WE•Stand was published as an American National Standard, replacing the Green Plumbing and Mechanical Code Supplement. The 2023 WE•Stand represents the second edition to be developed via the ANSI-accredited consensus process.
For questions about the WE•Stand, please contact Taylor Duran at (909) 218-8126 or taylor.duran@iapmo.org.
IAPMO® is proud to announce that Dain Hansen, executive vice president of Government Relations, has been named one of The Hill’s Top 100 Lobbyists of 2025. This marks Hansen’s fourth consecutive year on this prestigious list, highlighting his continued leadership and IAPMO’s influence on public policy affecting codes, standards, and the built environment.
IAPMO®, developer of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®), has posted online the timeline for the development of the 2030 editions of these prospective American National Standards.
IAPMO® is seeking volunteers to participate on two technical committees working toward the development of the 2030 editions of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®). The deadline to submit an application is Jan. 30, 2026.