Ontario, Calif. – In accordance with the IAPMO Regulations Governing Committee Projects, IAPMO would like to announce that a tentative interim amendment (TIA) to the 2024 edition of the Uniform Mechanical Code (UMC®) is being submitted for public comment.
UMC TIA 002-24 revises text in the 2024 edition of the UMC, Section 1104.6.2.4 (Refrigerant Concentration Above Limit), regarding reference to the setpoint for refrigerant detection systems. The comment form is located HERE.
IAPMO invites all interested parties to review the proposed TIA on the IAPMO website under Uniform Mechanical Code / Proposed TIAs and respond by filling out the comment form.
The deadline to submit comments is Sept. 5.
Completed forms may be emailed to Taylor Duran, UMC staff liaison, at taylor.duran@iapmo.org.
Today, IAPMO launches March4Water 2026, its annual observance month, to raise awareness about how communities can build resilience to water stress. This year's theme, “Water Solutions for Growing Communities,” demonstrates how water efficiency offers a proven path forward for policymakers facing the challenge of supporting economic growth while protecting drinking water supplies.
The International Water, Sanitation and Hygiene Foundation (IWSH®), the public charity of IAPMO, will lead a new IWSH Community Plumbing Challenge® this summer to upgrade critical plumbing infrastructure at Los Angeles Mission, a nonprofit serving individuals and families experiencing homelessness in downtown Los Angeles.
ASSE International is seeking working group members to support the update of ASSE 19000, Hydronic Systems Professional Qualifications Standard.