The Uniform Mechanical Code (UMC) is a model code developed by the International Association of Plumbing and Mechanical Officials (IAPMO) to govern the installation, inspection and maintenance of HVAC (heating, ventilating and air-conditioning) and refrigeration systems.
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.
Over the last fifty years, this voluntary code has been adapted by jurisdictions not only throughout the United States, but internationally as well.
Contributions to the content of the code were made by every segment of the building industry, including such diverse interests as consumers, enforcing authorities, installers/maintainers, insurance, labor, manufacturers, research/standards/testing laboratories, special experts, and users.