UPC and UMC Development Process
(Four Step Process)
CODE DEVELOPMENT
IAPMO Codes are developed in accordance with an American National Standards Institute (ANSI) accredited development process
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.
The 2027 UPC/UMC Code Development Timeline is now available for download.
The 2027 USPSHTC/USHGC Code Development Timeline is now available for download.
The 2027 WESTAND Code Development Timeline is now available for download.
IAPMO is calling for formal code proposals toward the development of the 2027 editions of USPSHTC, USHGC, and WE•STAND. All proposals recommending new text, revised text, or the deletion of text must be written in legislative format and clearly state the reason behind the recommendation.
Proposals can be submitted via the new IAPMO Codes Portal at the following URL: https://codeproposals.iapmo.org/
Instructions on how to submit proposals through the IAPMO Codes Portal can be obtained at the following URL: https://codes.iapmo.org/docs/IAPMO_Codes_Portal_Tutorial.pdf
No proposals will be accepted after Mar. 03, 2025.
For questions about submitting comments for the USPSHTC, contact Enrique Gonzalez, at (909) 230-5535 or enrique.gonzalez@iapmo.org. For questions about submitting comments for the USHGC and WE•STAND, contact Taylor Duran, at (909) 218-8126 or taylor.duran@iapmo.org
IAPMO is calling for formal public comments toward the development of the 2027 editions of UPC and UMC. All public comments must include the exact recommended wording as either new, revised or deleted text. In addition, the problem the recommendation is intended to resolve and the specific reason for making the comment must be stated.
Public comments may be submitted via the new IAPMO Codes Portal at the following URL: https://codeproposals.iapmo.org/
Instructions on how to submit public comments through the IAPMO Codes Portal can be obtained at the following URL: https://codes.iapmo.org/docs/IAPMO%20Instructions%20for%20Submitting%20Comments.pdf
No comments will be accepted after Jan. 17, 2025.
For questions about submitting comments for the UPC, contact Enrique Gonzalez, at (909) 230-5535 or enrique.gonzalez@iapmo.org. For questions about submitting comments for the UMC, contact Taylor Duran, at (909) 218-8126 or taylor.duran@iapmo.org
IAPMO is calling for formal code proposals toward the development of the 2027 edition of NSPC. All proposed changes must be submitted in electronic format to nspc@iapmo.org. If a standard is referenced, a copy of that standard must accompany the proposed code change that is submitted to the committee.
No proposals will be accepted after the 5 p.m. EST deadline Feb. 28, 2025
For more information, please contact IAPMO NSPC staff at nspc@iapmo.org
Interested parties are encouraged to download the ROPs via the following links:
Access the IAPMO Codes Portal to submit a code change.
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.
(Four Step Process)
(Three Step Process)
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 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.