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June 30, 2018

IAPMO makes UMC Tentative Interim Amendment (TIA) available for public comment


Ontario, Calif. (June 29, 2018) — In accordance with the IAPMO Regulations Governing Committee Projects, IAPMO would like to announce a Tentative Interim Amendment (TIA) to the 2018 edition of the Uniform Mechanical Code® (UMC) has been submitted for public comment.

TIA UMC 005-18 would amend Section 1003.3 (Gauges).

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 forms located at

The deadline to submit a comment is Friday, July 13. Completed forms may be emailed to

Should you have any questions, please contact Zalmie Hussein, Mechanical Code Development Administrator, by phone at (909) 218-8122 or by email at