Ontario, Calif. (Nov. 21, 2022) — The International Association of Plumbing and Mechanical Officials (IAPMO®) is seeking volunteers to participate on two technical committees working toward the development of the 2027 editions of the Uniform Plumbing Code (UPC) and Uniform Mechanical Code (UMC) . The deadline to submit an application is Jan. 31, 2023.
The UPC and UMC technical committees each seek members in the following categories: manufacturer, user, installer/maintainer, labor, research/standards/testing laboratory, enforcing authority, consumer, and special expert. These committees are assembled in accordance with the Regulations Governing Committee Projects and the Guide for the Conduct of Participants in the IAPMO codes and standards development process. These documents may be viewed HERE.
Within these documents, prospective technical committee participants may find information on the scope and general guidelines for the conduct of these committees.
The provisions of these codes apply to the erection, installation, alteration, repair, relocation, replacement, addition to, and use or maintenance of plumbing and mechanical systems.
Introduced in Los Angeles in 1928 and formally published as the Uniform Plumbing Code in 1945, the UPC is developed to govern the installation and inspection of plumbing systems as a means of promoting the public’s health, safety, and welfare. Later published by IAPMO in 1967, the UMC provides the same governance for mechanical (HVAC, combustion, exhaust, refrigeration) systems. Developed and subsequently republished at the conclusion of each three-year code cycle, the UPC and UMC are designed to provide consumers with plumbing, heating, and mechanical systems that meet all applicable standards while, at the same time, allowing latitude for innovation and new technologies.
IAPMO employs a consensus development process accredited by the American National Standards Institute (ANSI), gathering the most knowledgeable assembly of plumbing and mechanical experts in the world at its annual education and business conference and technical committee meetings, enabling anyone — members and non-members alike — to lend their voice to proposed changes to the code. The 2027 editions of the UPC and UMC will mark the ninth time these codes have been developed in this manner.
IAPMO urges its members and other interested parties to get involved in the process to ensure effectiveness in preserving the public’s health, safety, and welfare through fair and balanced development of its codes and standards. Installers, plumbing and mechanical officials, the construction industry, engineers, and manufacturers all benefit from a cooperative effort in developing codes.
Anybody interested in serving on one of these committees may complete the application online at the Code Development webpage
Should you have any questions regarding the UPC, please contact Enrique Gonzalez at (909) 230-5535 or email at enrique.gonzalez@iapmo.org. For the UMC, contact Taylor Duran at (909) 218-8126 or email at
taylor.duran@iapmo.org.
IAPMO®, developer of the Uniform Solar, Hydronics and Geothermal Code (USHGC®) and Uniform Swimming Pool, Spa and Hot Tub Code (USPSHTC®), has posted online the 2025 Report on Proposals for the 2027 editions of these prospective American National Standard-designated model codes.
IAPMO® and the American Society of Plumbing Engineers (ASPE) have renewed a Memorandum of Understanding (MoU), now incorporating ASSE International and ARCSA International, to jointly advance and promote the mutual interests of education, regulations, design, specifications, installation, and inspection of plumbing systems, as well as training, testing and certifying qualified professionals to perform design work responsive to the need to conserve and protect water supplies, and reduce energy use connected to delivery and use of water.
IAPMO®, developer of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®), has posted online the 2025 Report on Comments (ROC) for the 2027 editions of these American National Standard-designated model codes. The ROC includes the committee actions as discussed during the May 6-8 technical committee meetings, the electronic ballot results as balloted between May 19-June 16, and the Technical Correlating Committee actions on all comments received for the 2027 editions.