The International Association of Plumbing and Mechanical Officials (IAPMO) is seeking volunteers with a technical background in plumbing products to participate on the IAPMO Z1403 technical subcommittee (TSC). The Z1403 standard will update flow rate and flush volume assumptions that have been industry standard since the 1940s and establish IAPMO’s widely adopted Water Demand Calculator as an ANSI/CAN standard.   

For more than 30 years, IAPMO has developed American National Standards, initially as the secretariat for the ANSI Z124 Technical Committee, and since 2005 as an ANSI-accredited standards development organization. On May 10, 2018, IAPMO received accreditation through the Standards Council of Canada (SCC) for development of National Standards of Canada, thus accepting the responsibility for development of CAN/IAPMO-designated standards.  

The Z1403 TSC members will assist the Plumbing Standards Committee (PSC) with the development of this new American National Standard. The Z1403 TSC will also be responsible for the content and processing of public review comments and will operate in accordance with IAPMO’s accredited procedures for standards development: IAPMO/ASSE PP-1 (Policies and Procedures for Consensus Development of American National Standards) and IAPMO PP-2 (Policies and Procedures for Development of National Standards of Canada)

“This standard will be a guideline for pipe right-sizing that addresses decades of oversized piping design that has resulted in the unintended consequences of inflated system costs, degradations in water safety and wasted energy,” said John Higdon, IAPMO’s director of Standards Development.  

The first technical subcommittee meetings will be held virtually in September.

The deadline to apply is Aug. 30. Applications can be downloaded through the following URL:https://www.iapmo.org/media/28752/application-for-membership-iapmo-tsc-2021-11-03.pdf.  

Industry stakeholders — including installers, manufacturers, plumbing professionals, building owners and managers, engineers, AHJs, and the general public — are invited and encouraged to apply to participate.  

Interested parties wishing to serve on the Z1403 TSC may submit the completed application as well as a copy of your resume to IAPMO Standards at standards@iapmostandards.org by the Aug. 30 deadline, or you may contact John Higdon at 909-218-8123 or by email at john.higdon@iapmo.orgo with any questions.