Among the significant updates included in the 2024 UMC are enhanced air filtration requirements, new ventilation system balancing provisions, updated refrigerant safety classifications, and requirements addressing the use of emerging low-global-warming-potential refrigerants.
IAPMO has published the 2027 editions of the Uniform Plumbing Code (UPC) and Uniform Mechanical Code (UMC) in both hardcopy and electronic versions. The Uniform Codes are developed using IAPMO’s ANSI-accredited consensus development procedures. This process brings together volunteers representing a variety of viewpoints and interests to achieve consensus on plumbing and mechanical practices.
The Technical Committee Meeting Monographs contain every code change proposal submitted for the 2027 editions of the UPC and UMC as part of the ANSI-accredited consensus code development process employed by IAPMO.