CODE DEVELOPMENT

MISSION AND VISION STATEMENT

IAPMO Codes and Standards provides innovative codes and standards solutions for the protection of the public’s health, safety and welfare. We address the world’s codes and standards needs to improve life for a better, more resilient tomorrow.

RECENT NEWS

TIA HEARING INFORMATION

In accordance with the IAPMO Regulations Governing Committee Projects, a proposed TIA UMC 002-21, which has been submitted for processing pursuant to Section 5-1 of the Regulations, will be automatically docketed as an appeal on the agenda of the IAPMO Standards Council.

 

Any party may advocate their position before the Council. Please note that most Council meetings are held via teleconference. Parties wishing to address the Council shall notify the Council Secretary, Gaby Davis at gaby.davis@iapmo.org no later than 48 hours prior to the Council meeting.

 

Although not required, individuals wishing to advocate a position are encouraged, to the extent practicable, to file written submissions in general conformance with Sections 1-6.3 and 1-6.4 of the Regulations in advance of the meeting at which action will be considered. When an automatically docketed appeal has not been pursued by any party, the Council will not consider the matter as an appeal. The proposed TIA UMC 002-21will be on the council agenda scheduled for September 22, 2022 at 8:00 am Pacific (11:00 am Eastern). 


Appeals Filed to the IAPMO Standards Council

An appeal to the IAPMO Standards Council has been timely filed with the Council Secretary, which relates to the development of the 2024 editions of the UPC and UMC.


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2022 TECHNICAL COMMITTEE MONOGRAPHS AND INFORMATION


Meeting Monographs

Interested parties are encouraged to download the meeting monograph at the following links:


2022 USPSHTC ROP Monograph                2022 USPSHTC TC Meeting Tentative Actions 

2022 USHGC ROP Monograph                    2022 USHGC TC Meeting Tentative Actions

2022 WE•Stand ROP Monograph                2022 WE•Stand TC Meeting Tentative Actions


2022 UPC/UMC TECHNICAL COMMITTEE MEETING MONOGRAPHS AND INFORMATION


Meeting Monograph

Interested parties are encouraged to download the meeting monograph at the following links:


2022 UPC TC Meeting Monograph                 2022 UPC TC Meeting Tentative Actions

2022 UMC TC Meeting Monograph                 2022 UMC TC Meeting Tentative Actions

 


ANSI-Accredited Development Process

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.

Click here to learn more about the IAPMO Codes and Standards development process.


Building True Consensus

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:

  • Effectiveness in preserving the public health, safety, and welfare.
  • The timely evaluation and recognition of technological developments pertaining to construction regulations.
  • A consensus process, which provides for the open discussion of proposals by all parties who wish to participate.

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

  

Uniform Plumbing Code (UPC)

Uniform Mechanical Code (UMC)

Uniform Solar, Hydronics and
Geothermal Code (USHGC)

Uniform Swimming Pool, Spa
and Hot Tub Code (USPSHTC)

Water Efficiency and Sanitation Standard
(WE-Stand)



National Standard Plumbing Code (NSPC)

State-Codes based
on Uniform Codes

Sample legislation to adopt
a IAPMO code

2024 UPC & UMC DEVELOPMENT SCHEDULE

2024 USHGC & USPSHTC DEVELOPMENT SCHEDULE

2023 WE•Stand DEVELOPMENT SCHEDULE

ASK A CODE QUESTION??

 

Code Errata, Addendums, Tentative Interim Amendments & Formal Interpretations Available Here

Press Releases

2022-08-12 Report on Comments Toward Development of 2024 UPC, UMC Now Available for Online Download

2022-07-27 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1117

2022-07-15 IAPMO Publishes American National Standards and Canadian National Standards on Press Fittings and Partitions

2022-07-15 IAPMO Advances Development of 2023 WE•Stand During Technical Committee Meetings

2022-07-15 IAPMO Advances Development of 2024 Solar, Hydronics and Geothermal Code and Swimming Pool, Spa and Hot Tub Code During Technical Committee Meetings

2022-07-13 IAPMO Makes Tentative Interim Amendment (TIA) Available for Public Comment

2022-07-06 Wisconsin Approves Water Demand Calculator as Alternate Standard for Sizing Water Supply Piping

2022-06-30 ASSE/IAPMO/ANSI Series 5000-2022 Now Available

2022-06-03 2022 California Plumbing Code, California Mechanical Code Now Available

2022-06-23 IAPMO Publishes Water Demand Calculator™ as Standalone Document

2022-06-03 IAPMO Advances Development of 2024 Uniform Codes During Technical Committee Meetings

2022-06-02 IAPMO and AWWA Seek Public Input on Manual of Recommended Practices for the Safe Closure and Reopening of Building Water Systems

2022-05-24 IAPMO Seeks Technical Subcommittee Members for Development of National Standard for District Ambient Temperature Loop (ATL) Distributed Energy Systems

2022-05-16 IAPMO WE•Stand Monograph Now Available

2022-05-16 IAPMO USHGC, USPSHTC Code Change Monographs Now Available

2022-05-12 National Standard Plumbing Code Public Hearing Set for Aug. 11

2022-05-11 IAPMO Forming Hydrogen Fuel Gas Piping Task Group

2022-03-30 IAPMO Code Change Monographs Now Available

2022-03-29 IAPMO Seeks Hydrogen Fuel Gas Piping Task Group Members

2022-03-21 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1065

2022-03-21 2022 UPC, UMC Technical Committee Meetings to be Held in Person and Virtually

2022-03-14 IAPMO Seeks Technical Correlating Committee Members

2022-03-11 IAPMO Accepting Comments to Petitions Filed Relating to UMC TIA 009-18 and UMC TIA 001-21

2022-02-28 Submission Deadline Extended to April 1 for Proposed Changes to 2024 National Standard Plumbing Code (NSPC)

2022-02-02 IAPMO Seeks Technical Subcommittee Members for Development of Canadian National Standard IAPMO Z1106

2022-01-24 Deadline to Submit Proposed Changes to 2024 National Standard Plumbing Code (NSPC) is March 1

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®)

2021-12-06 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1095

Click "Read More" for additional Press Releases

 

MISSION AND VISION STATEMENT

IAPMO Codes and Standards provides innovative codes and standards solutions for the protection of the public’s health, safety and welfare. We address the world’s codes and standards needs to improve life for a better, more resilient tomorrow.

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.

All comments should indicate the exact wording recommended as new, revised or to be deleted, as well as state the problem the recommendation is intended to resolve and the specific reason for making the comment. No comments will be accepted after the 5 p.m. PST deadline on Jan. 4, 2022. All public comments will be distributed to the technical committee members in March and reviewed at their meetings, May 2-5, 2022, in Anaheim, Calif

 

2021 Report on Proposals (ROP)

No hardcopy editions of these publications will be printed or distributed. Interested parties are encouraged to download the
documents at the following URLs:

2021 UPC Report on Proposals: https://codes.iapmo.org/docs/2024/UPC/2021%20UPC%20Report%20on%20Proposals.pdf

2021 UMC Report on Proposals: https://codes.iapmo.org/docs/2024/UMC/2021%20UMC%20Report%20on%20Proposals.pdf

 


ANSI-Accredited Development Process

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.

Click here to learn more about the IAPMO Codes and Standards development process.


Building True Consensus

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:

  • Effectiveness in preserving the public health, safety, and welfare.
  • The timely evaluation and recognition of technological developments pertaining to construction regulations.
  • A consensus process, which provides for the open discussion of proposals by all parties who wish to participate.

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

  

Uniform Plumbing Code (UPC)

Uniform Mechanical Code (UMC)

Uniform Solar, Hydronics and
Geothermal Code (USHGC)

Uniform Swimming Pool, Spa
and Hot Tub Code (USPSHTC)

Water Efficiency and Sanitation Standard
(WE-Stand)



National Standard Plumbing Code (NSPC)

State-Codes based
on Uniform Codes

Sample legislation to adopt
a IAPMO code

2024 UPC & UMC DEVELOPMENT SCHEDULE

ASK A CODE QUESTION??

Code Errata, Addendums, Tentative Interim Amendments & Formal Interpretations Available Here

Press Releases

2022-08-12 Report on Comments Toward Development of 2024 UPC, UMC Now Available for Online Download

2022-07-27 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1117

2022-07-15 IAPMO Publishes American National Standards and Canadian National Standards on Press Fittings and Partitions

2022-07-15 IAPMO Advances Development of 2023 WE•Stand During Technical Committee Meetings

2022-07-15 IAPMO Advances Development of 2024 Solar, Hydronics and Geothermal Code and Swimming Pool, Spa and Hot Tub Code During Technical Committee Meetings

2022-07-13 IAPMO Makes Tentative Interim Amendment (TIA) Available for Public Comment

2022-07-06 Wisconsin Approves Water Demand Calculator as Alternate Standard for Sizing Water Supply Piping

2022-06-30 ASSE/IAPMO/ANSI Series 5000-2022 Now Available

2022-06-30 2022 California Plumbing Code, California Mechanical Code Now Available

2022-06-23 IAPMO Publishes Water Demand Calculator™ as Standalone Document

2022-06-03 IAPMO Advances Development of 2024 Uniform Codes During Technical Committee Meetings

2022-06-02 IAPMO and AWWA Seek Public Input on Manual of Recommended Practices for the Safe Closure and Reopening of Building Water Systems

2022-05-24 IAPMO Seeks Technical Subcommittee Members for Development of National Standard for District Ambient Temperature Loop (ATL) Distributed Energy Systems

2022-05-16 IAPMO WE•Stand Monograph Now Available

2022-05-16 IAPMO USHGC, USPSHTC Code Change Monographs Now Available

2022-05-12 National Standard Plumbing Code Public Hearing Set for Aug. 11

2022-05-11 IAPMO Forming Hydrogen Fuel Gas Piping Task Group

2022-03-30 IAPMO Code Change Monographs Now Available

2022-03-29 IAPMO Seeks Hydrogen Fuel Gas Piping Task Group Members

2022-03-21 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1065

2022-03-21 2022 UPC, UMC Technical Committee Meetings to be Held in Person and Virtually

2022-03-14 IAPMO Seeks Technical Correlating Committee Members

2022-03-11 IAPMO Accepting Comments to Petitions Filed Relating to UMC TIA 009-18 and UMC TIA 001-21

2022-02-28 Submission Deadline Extended to April 1 for Proposed Changes to 2024 National Standard Plumbing Code (NSPC)

2022-02-02 IAPMO Seeks Technical Subcommittee Members for Development of Canadian National Standard IAPMO Z1106

2022-01-24 Deadline to Submit Proposed Changes to 2024 National Standard Plumbing Code (NSPC) is March 1

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®)

2021-12-06 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1095

2021-11-12 IAPMO Seeks Input on Development of IAPMO Z1117 and IAPMO Z1154 as Canadian National Standards

2021-11-02 2020 Water Efficiency and Sanitation Standard (WE•Stand) Published as American National Standard

2021-11-01 IAPMO and TCNA to Jointly Develop Consensus Standard for Fabricated Shower Tiling Kits and Receptors

2021-11-01 IAPMO Solicits Proposals for 2023 WE•Stand

2021-11-01 IAPMO Solicits Proposals for 2024 USHGC, USPSHTC

2021-10-20 IAPMO Publishes American National Standard and Canadian National Standard for Prefabricated Gravity Grease Interceptors

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 Report on Proposals Toward Development of 2024 UPC and UMC Now Available for Online Download

2021-09-09 IAPMO Solicits Public Comments on 2024 UPC, UMC

2021-09-08 IAPMO Seeks Medical Gas Resiliency Task Group Members

2021-09-07 Report on Comments Toward Development of Water Efficiency and Sanitation Standard (WE•Stand) Now Available for Online Download

2021-07-22 Minnesota Adopts Provisions of 2018 Uniform Plumbing Code

2021-07-01 Deadline to Submit Proposed Changes to 2024 National Standard Plumbing Code (NSPC) is March 1

2021-06-25 IAPMO Seeks UPC, UMC Task Group Members

2021-06-10 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1059

2021-06-10 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1119

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

2021-03-09 IAPMO Publishes U.S., Canadian Standard for Detection, Monitoring, Control of Plumbing Systems

2021-02-11 2021 IAPMO Solar, Hydronics and Geothermal, Swimming Pool, Spa and Hot Tub Codes Now Available

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

2021-01-13 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z124.10

2021-01-13 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1324

2021-01-12 IAPMO and ASSE International Publish Chemical Dispensers Standard for U.S. and Canada

2020-12-18 Grand Island, Nebraska, Adopts 2018 Editions of Uniform Plumbing Code (UPC), Uniform Mechanical Code (UMC)

2020-12-07 2020 Uniform Solar, Hydronics and Geothermal Code – India (USHGC-I) Now Available in India

2020-11-30 IAPMO Publishes Installation Standard (IS 34) for Residential Solar Photovoltaic (PV) and Energy Storage Systems, Paving Road to Zero Net Energy

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

2020-08-28 Report on Comments Toward Development of 2021 USHGC, USPSHTC Now Available for Online Download

2020-08-13 U.S. EPA Releases Final Regulation on Lead Reduction Rule

2020-07-29 IAPMO Seeks Volunteers for Participation on the Building Standards Committee for Development of American National Standards

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

2020-05-12 IAPMO Seeks Volunteers for Development of National Standard for Hydronic Heating and Cooling System Heat Transfer Fluid Treatment

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

2020-04-02 IAPMO Seeks Committee Members for Development of National Standard for Hydronic Heating and Cooling System Heat Transfer Fluid Treatment

2020-03-31 IAPMO Publishes 2021 Editions of Uniform Plumbing Code (UPC), Uniform Mechanical Code (UMC)

2020-03-27 IAPMO Seeks Technical Subcommittee Members for Development of National Standard IAPMO Z1351

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

2019-10-10 IAPMO Solicits Public Comments for 2021 Uniform Solar, Hydronics and Geothermal, Swimming Pool, Spa and Hot Tub Codes

2019-09-09 Report on Proposals (ROP) Toward Development of 2021 USHGC, USPSHTC Now Available for Online Download

2019-09-06 New Jersey Adopts 2018 National Standard Plumbing Code

2019-08-21 Report on Comments Toward Development of 2021 UPC and UMC Now Available for Online Download

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 CodeCalifornia Mechanical Code Now Available

2019-06-24 IAPMO Advances Development of 2021 Solar, Hydronics & Geothermal Code and Swimming Pool, Spa & Hot Tub Code During Technical Committee Meetings

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

2019-03-08 IAPMO Seeks Technical Subcommittee Members for Development of National Standards IAPMO Z1115 and IAPMO Z1349

2019-02-07 IAPMO Seeks Technical Subcommittee Members for Development of Z1167 Standard as a U.S National Standard for Solid Waste Containment Interceptors

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

2021 UPC & UMC CODE Timeline

Articles

2018 Uniform Code Highlights

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

Plumbing Prevention

 

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