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The IAPMO Standards Council issued one Tentative Interim Amendment and rejected another affecting the 2015 edition of the Uniform Plumbing Code (UPC).
TIA UPC-004-15 revises some values in UPC Table 501.1(1) pertaining to water heater first hour ratings. The rejected TIA UPC-003-15 proposed that new language be added to Section 710.6 Backwater Valves in the 2015 UPC.
Both TIAs were balloted through the Plumbing Technical Committee in accordance with the Regulations Governing Committee Projects to determine if there existed the necessary three-fourths majority support on technical merit and emergency nature to establish the recommendation for issuance. In the case of TIA UPC- 004-15, the letter ballot passed on both accounts. TIA UPC-003-15 failed on both accounts.
To examine TIA UPC-004-15 in its entirety, visit IAPMO’s website.
TIAs are proposals based on the determination of an emergency nature. They require 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.