Utah residential energy code

Utah residential energy code (2024 IECC from 2026-07-01 (H.B. 65); IRC stays at 2021 with a Utah-replaced chapter 11)

As of 2026-10-22. DOE's Building Energy Codes Program (energycodes.gov) lags state adoption, so where a state's own rule was read it governs and DOE's differing figure is noted. Residential means one- and two-family dwellings and townhouses. Local amendments can apply; check the code body before relying on a section.

Key features

Code in force: 2024 IECC from 2026-07-01 (H.B. 65); IRC stays at 2021 with a Utah-replaced chapter 11
In force since: 2026-07-01
Adoption: Statewide mandatory code
Enrolled H.B. 65 was read; the governor's signature and chapter number were not verified.
Provisional: a state source was not opened for every point above; DOE energycodes.gov is cited where noted.

Governing body

State of Utah

Region

Applies to

General contracting HVAC Insulation Electrical Windows & doors

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