IAPMO Codes and Standards is dedicated to providing innovative, consensus-based, codes and standards solutions for the protection of the public’s health, safety and welfare. We address global codes and standards needs to improve life for a better tomorrow.
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RECENT NEWS IAPMO Solicits Public Comments for UPC & UMC The public comment form, as well as instructions and background on IAPMO’s ANSI-accredited consensus-development process, can be found at https://codes.iapmo.org/form_comments_upc_umc_2024.aspx.
2021 Report on Proposals (ROP) No hardcopy editions of these publications will be printed or distributed. Interested parties are encouraged to download the
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Building True Consensus
With its Uniform Plumbing Code; Uniform Mechanical Code; Uniform Solar, Hydronic and Geothermal Code; Uniform Swimming Pool, Spa and Hot Tub Code; and Water Efficiency and Sanitation Standard (WE-Stand) designated as American National Standards, IAPMO is proud to utilize an open consensus process accredited by the American National Standards Institute (ANSI) in its code development practice.
IAPMO gathers the largest assembly of plumbing and mechanical experts in the world at its annual education and business conference, where anyone — members and non-members alike — can have a voice and a vote on proposed changes to the code.
The purpose of the IAPMO code development process is to ensure the continued development and maintenance of the Uniform Codes with the following goals in the forefront:
IAPMO urges its members and other interested parties to get involved in the code development process to ensure that these goals are maintained. Installers, plumbing and mechanical officials, the construction industry, engineers, and manufacturers all benefit from a cooperative effort in developing codes.
Click on the following covers to go directly to the individual document development page
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Uniform Plumbing Code (UPC) |
Uniform Mechanical Code (UMC) |
Uniform Solar, Hydronics and |
Uniform Swimming Pool, Spa |
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Water Efficiency and Sanitation Standard |
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State-Codes based |
Sample legislation to adopt |
Code Errata, Addendums, Tentative Interim Amendments & Formal Interpretations Available Here
2021-12-23 IAPMO Seeks Input on the Development of IAPMO Z124.10 as Canadian National Standard
2021-12-20 Lincoln, Nebraska, Adopts 2018 Uniform Plumbing Code (UPC®)
2021-11-01 IAPMO Solicits Proposals for 2023 WE•Stand
2021-11-01 IAPMO Solicits Proposals for 2024 USHGC, USPSHTC
2021-10-14 IAPMO Publishes Standard for Quality of Heat Transfer Fluids Used in Hydronics Systems
2021-10-04 IAPMO Concludes 92nd Annual Education and Business Conference
2021-06-28 IAPMO Seeks Water Demand Calculator Task Group Members
2021-09-28 IAPMO Makes Two Tentative Interim Amendments (TIA) Available for Public Comment
2021-09-24 IAPMO Seeks WE•Stand Task Group Members
2021-09-24 IAPMO Seeks USPSHTC Task Group Members
2021-09-24 IAPMO Seeks USHGC Task Group Members
2021-09-15 IAPMO Seeks Bathroom Design Task Group Members
2021-09-09 IAPMO Solicits Public Comments on 2024 UPC, UMC
2021-09-08 IAPMO Seeks Medical Gas Resiliency Task Group Members
2021-07-22 Minnesota Adopts Provisions of 2018 Uniform Plumbing Code
2021-06-25 IAPMO Seeks UPC, UMC Task Group Members
2021-05-28 IAPMO Advances Development of 2024 Uniform Codes During Technical Committee Meetings
2021-05-26 IAPMO Seeks Canadian Input on Development of IAPMO Z1001 as Canadian National Standard
2021-05-03 IAPMO Seeks Volunteers to Serve on 2023 WE•Stand Technical Committee
2021-05-03 IAPMO Makes Tentative Interim Amendment Available for Public Comment
2021-04-30 IAPMO Seeks Technical Committee Members for 2024 USPSHTC, USHGC
2021-04-30 Seattle Adopts Provisions of 2018 Uniform Plumbing Code
2021-04-19 Oregon Adopts 2021 Uniform Plumbing Code and 2017 WE•Stand
2021-04-01 IAPMO Code Change Monographs Now Available
2021-03-18 IAPMO Announces Virtual Education and Business Conference in September
2021-03-18 ASHRAE, IAPMO Agree to Co-Publish ASHRAE Standard 191 and WE•Stand™
2021-03-17 IAPMO Standards Council Issues TIA UPC 002-21
2021-02-11 IAPMO Makes Tentative Interim Amendment Available for Public Comment
2021-02-05 IAPMO Standards Council Issues TIA UPC 001-21
2021-02-10 2021 UPC, UMC Technical Committee Meetings to be Held Virtually
2021-01-12 IAPMO and ASSE International Publish Chemical Dispensers Standard for U.S. and Canada
2020-11-18 Report on Comments Toward Development of 2020 WE•Stand Now Available for Online Download
2020-11-18 IAPMO Makes Tentative Interim Amendment Available for Public Comment
2020-09-21 Dave Viola to Succeed GP Russ Chaney as IAPMO CEO
2020-08-13 U.S. EPA Releases Final Regulation on Lead Reduction Rule
2020-06-30 IAPMO Solicits Proposals for 2024 UPC, UMC
2020-06-08 IAPMO Seeks Canadian Representation on the Plumbing Standards Committee for Development of U.S. and Canadian National Standards
2020-05-29 IAPMO Holds Technical Committee Meetings for Development of 2021 USHGC and USPSHTC
2020-05-26 2021 UPC/UMC and 2018 NSPC-New Jersey Edition Available in the IAPMO Codes Mobile App
2020-05-06 IAPMO Makes Illustrated Training Manuals and Study Guides Available Free Online
2020-04-20 IAPMO Makes Standards Free to Aid Fight Against COVID-19
2020-04-08 IAPMO Seeks UMC A2L Task Group Members
2020-04-03 IAPMO USHGC and USPSHTC Code Change Monographs Now Available
2020-03-11 IAPMO Seeks Technical Correlating Committee Members
2020-02-28 IAPMO Board of Directors Issues TIA UPC-002-18 and Petition No. 02-21
2019-12-05 IAPMO Publishes IAPMO/ISO 30500 as National Adoption Standard for the US and Canada
2019-11-21 IAPMO Makes Two Tentative Interim Amendments (TIA) Available for Public Comment
2019-11-20 IAPMO Seeks Technical Committee Members for 2024 UPC and UMC
2019-11-18 IAPMO Codes Mobile App Now Available for Download
2019-11-15 IAPMO Makes New Tentative Interim Amendment (TIA) Available for Public Comment
2019-10-25 IAPMO Makes Three Tentative Interim Amendments (TIA) Available for Public Comment
2019-10-25 IAPMO Seeks UMC Legionella Task Group Members
2019-10-21 IAPMO Makes New Tentative Interim Amendment (TIA) Available for Public Comment
2019-09-06 New Jersey Adopts 2018 National Standard Plumbing Code
2019-08-13 IAPMO Seeks USPSHTC Slip-Resistance Task Group Members
2019-08-13 IAPMO Seeks USHGC Hydronics Task Group Members
2019-07-02 2019 California Plumbing Code, California Mechanical Code Now Available
2019-06-19 St. Louis County Adopts UPC, Provisions of Two Other Uniform Codes
2019-05-20 IAPMO Code Change Monographs Now Available for the USHGC and USPSHTC
2019-05-15 IAPMO Advances Development of 2021 Uniform Codes During Technical Committee Meetings
2019-03-25 IAPMO Code Change Monographs Now Available
2019-03-19 IAPMO Seeks Technical Correlating Committee Members
2019-03-13 National Standard Plumbing Code Public Hearing Set for July 11, 2019
2018-10-29 IAPMO 2021 Solar Energy, Hydronic and Geothermal & Swimming Pool Code Proposals
2018-10-29 IAPMO 2021 Solar Pool TC
2018-08-31 IAPMO 2021 UPC & UMC Public Comment
2018-08-23 IAPMO UPC & UMC ROP
2018-08-22 IAPMO 2018 USHGC & USPSHTC
Articles
Not All Model Codes Are Created Equally
Model Codes Bring Simplicity, Order to Plumbing Engineer’s Work
How Stakeholders Can Effectively Participate in the Development of Codes and Standards
Standards and Model Codes: A Working Relationship
Circuit Venting Problem Solved: Methods, Connections and More
Plumbing Vent System in Multi-story Building
Fire and Smoke Dampers – The First Line of Defense
The Formation of PERC and the Drainline Carry Research Project
Working to Keep Building Water Systems Safe and Efficient – The Vital Role of the Plumbing Industry
