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®, developer of the Uniform Solar, Hydronics and Geothermal Code (USHGC®) and Uniform Swimming Pool, Spa and Hot Tub Code (USPSHTC®), has posted online the 2025 Report on Proposals for the 2027 editions of these prospective American National Standard-designated model codes.
IAPMO® and the American Society of Plumbing Engineers (ASPE) have renewed a Memorandum of Understanding (MoU), now incorporating ASSE International and ARCSA International, to jointly advance and promote the mutual interests of education, regulations, design, specifications, installation, and inspection of plumbing systems, as well as training, testing and certifying qualified professionals to perform design work responsive to the need to conserve and protect water supplies, and reduce energy use connected to delivery and use of water.
IAPMO®, developer of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®), has posted online the 2025 Report on Comments (ROC) for the 2027 editions of these American National Standard-designated model codes. The ROC includes the committee actions as discussed during the May 6-8 technical committee meetings, the electronic ballot results as balloted between May 19-June 16, and the Technical Correlating Committee actions on all comments received for the 2027 editions.