Uniform Mechanical Code

The Uniform Mechanical Code (UMC) is a model code developed by the <a href="/facts/IAPMO/3pXTIdTU">International Association of Plumbing and Mechanical Officials</a> (<a href="/facts/IAPMO/3pXTIdTU">IAPMO</a>) to govern the installation, inspection and maintenance of <a href="/facts/HVAC/gm1UQdR6">HVAC</a> (heating, <a href="/facts/Ventilating/6p7CVPTj">ventilating</a> and <a href="/facts/Air-conditioning/bK2sIKQd">air-conditioning</a>) and <a href="/facts/Refrigeration/Bs8HHbYd">refrigeration</a> systems. It is designated as an American National Standard.
The UMC is developed using the <a href="/facts/American_National_Standards_Institute/p3d1TQCb">American National Standards Institute</a>'s (ANSI) consensus development procedures. This process brings together volunteers representing a variety of viewpoints and interests to achieve consensus on mechanical issues.
The UMC is designed to provide consumers with safe mechanical systems while, at the same time, allowing latitude for innovation and new technologies. The public at large is encouraged to provide input for the development process. The code is updated every three years. A code development timeline and other relevant information are available at IAPMO's website.

Uniform Mechanical Code open-in-new

Uniform Mechanical Code