Ontario, Calif. — The IAPMO Standards Council on Nov. 4 issued a tentative interim amendment (TIA) to the 2024 edition of the Uniform Mechanical Code (UMC®).
UMC TIA 003-24 revises UMC Chapter 11, Table 1102.3 (Refrigerant Groups, Properties, and Allowable Quantities), to update the permissible refrigerant quantities pertaining to refrigerant concentration limits (RCLs) and lower flammability limits (LFLs).
The TIA was balloted through the Mechanical Technical Committee in accordance with the Regulations Governing Committee Projects to determine if there was the necessary three-fourths majority support, based on technical merit and emergency nature, to establish the recommendation for issuance.
In determining whether to issue a TIA, the Standards Council looks to the Technical Committee letter ballot for a recommendation of support. Upon a full review and consideration of all the information available to it, the Council concluded that a clear and substantial basis exists to issue UMC TIA 003-24.
To examine this TIA in its entirety, please view: https://www.iapmo.org/media/n0edywdo/2024-umc-tia-003-issued.pdf
TIAs are proposals based on the determination of an emergency nature requiring prompt action to amend code that contains an error or omission that was overlooked during the regular code development process, contains a conflict within the document or with another IAPMO document, or to correct a hazard, promote an advancement in safeguarding the public or provide an opportunity to correct an adverse impact on a product or method of installation.
IAPMO R&T, North America’s premier plumbing, water systems, and mechanical product certification agency, is now licensed by the U.S. Environmental Protection Agency (EPA) to certify point-of-use reverse osmosis (RO) systems to earn the WaterSense® label.
The Castle Rock, Colorado, town council has approved the adoption of IAPMO’s Uniform Plumbing Code (UPC®) Appendix M — the Water Demand Calculator® — as an alternative methodology for sizing water pipes in single- and multifamily buildings. The Castle Rock Town Code has been amended to require the use of the Water Demand Calculator for sizing water service lines and internal plumbing supply lines.
IAPMO® Uniform Evaluation Services (UES) is pleased to announce that SPEC MIX, LLC was recently granted UES Evaluation Report ER-950 for its SPEC MIX Fiber Base Coat Stucco to reference the 2021, 2018, 2015, 2012, 2009, and 2006 editions of the International Building Code® (IBC) and the International Residential Code® (IRC).