With its Uniform Plumbing Code, Uniform Mechanical Code, Uniform Solar Energy, Hydronic and Geothermal Code and Uniform Swimming Pool, Spa and Hot Tub Code 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:
- 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)
on Uniform Codes
Sample legislation to adopt
a IAPMO code
APPEALS HEARING INFORMATION
The Standards Council will meet on November 14, 2019 to discuss appeals submitted to the 2021 UPC and UMC. Click here to view appeals submitted and the schedule of Appeals..
ASK A CODE QUESTION??
Code Errata, Addendums, Tentative Interim Amendments & Formal Interpretations Available Here
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 Code, California 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
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