Written by IAPMO 9:11 am Backflow Prevention, Code News, IAPMO News

IAPMO Makes Two Tentative Interim Amendments (TIA) Available for Public Comment

In accordance with the IAPMO Regulations Governing Committee Projects, IAPMO would like to announce that two Tentative Interim Amendments (TIA) to the 2018 edition of the Uniform Plumbing Code (UPC®) are being submitted for public comment.

TIA UPC 004-18 revises text in UPC Section 1506.7 (On-Site Treated Nonpotable Water Devices and Systems) regarding devices or equipment used to treat on-site treated nonpotable water. The comment form is located at:

TIA UPC 005-18 revises text in UPC Table 603.2 (Backflow Prevention Devices, Assemblies, and Methods) regarding the installation of an atmospheric vacuum breaker. The comment form is located at:

IAPMO invites all interested parties to review the proposed TIAs on the IAPMO website under Uniform Plumbing Code / Proposed TIAs and respond by filling out the comment form.

The deadline to submit comments is Dec. 2.

Completed forms may be emailed to Enrique Gonzalez, Plumbing Code Development Administrator, at Enrique.Gonzalez@iapmo.org or faxed to the Codes department at (909) 472-4246.


IAPMO develops and publishes the Uniform Plumbing Code®,the most widely recognized code of practice used by the plumbing industry worldwide; Uniform Mechanical Code®; Uniform Swimming Pool, Spa and Hot Tub Code®; and Uniform Solar Energy, Hydronics and Geothermal Code — the only plumbing, mechanical, solar energy and swimming pool codes designated by ANSI as American National Standards — and the Water Efficiency Standard (WE-Stand)™. IAPMO works with government, contractors, labor force, and manufacturers to produce product standards, technical manuals, personnel certification/educational programs and additional resources in order to meet the ever-evolving demands of the industry in protecting public health and safety.

Last modified: December 19, 2023