Utah enforces the 2021 IRC

Record of adoption

In force since

Jul 1, 2024

Legal citation

Utah Code 15A-2-103(1)(b); amendments in Title 15A, Chapter 3, Part 2

Adopted by

Utah Legislature (edition named in statute)

Applies

Statewide

State amendments

Major

Also called

Utah Code Title 15A

Edition 2021 is stated in the 2026 H.B. 65 enrolled text (not changed). The Jul 1, 2024, date comes from the effdate attribute in H.B. 518 (2024) XML, which moved the state to the 2021 IRC.

Exceptions

• Political subdivisions may not enforce requirements more restrictive than the state construction code (per ICC state page)

How Utah adopts the IRC

• Statute
• The legislature names the edition in statute
• The legislature sets the update schedule

Same as the IBC: the Legislature amends 15A-2-103 by bill. ICC’s state page says the IRC and residential IECC are reviewed every other cycle, so the IRC stayed at 2021 while the IBC moved to 2024.

Cycle. Every other ICC cycle for IRC and residential IECC.

Laws, rulings, and other actions

1. Jul 1, 2025Legislation
   H.B. 313 State Construction and Electrical Standards Amendments2025 General Session

   Changes the NEC edition in 15A-2-103 from 2020 to 2023 and amends IRC provisions.

   Passed, effective Jul 1, 2025

   le.utah.gov (opens in a new tab)
2. Mar 21, 2024Legislation
   H.B. 518 State Construction Code Modifications2024 General Session

   Aligns the state code with the 2021 IRC and amends IRC energy provisions; the NEC stood at 2020 until 2025.

   Enacted Mar 21, 2024 (governor signed); 15A-2-103 effdate Jul 1, 2024

   le.utah.gov (opens in a new tab)

How it was checked

Partial

Researched in the state’s own record. The seal stays broken until the passage is on file word for word.

The state’s record was last read on Oct 19, 2026, from three source pages.

Evidence 3 sources

Sources for the record itself come first, the state’s own records ahead of others. A label marks a source about something else, such as an exception. A source marked secondary is not the state’s own record.

• “effdate="7/1/2024”

Tracker cross-checks

Code adoption trackers are a cross-check. They are not Utah’s own record.

• ICC’s code adoption mapCross-checkAgrees with the record

  State Utah 21 21 24 21 21 21 21 21 21 21 X (second entry read as IRC 2021)

  mitek-us.com (opens in a new tab)Read Oct 17, 2026

Related pages

• See Utah’s IRC on the map
• IRC adoption in every state
• All six codes in Utah

Other codes in Utah

• NEC2023 NECPartial
• IBC2024 IBCVerified
• IFC2024 IFCVerified
• IECC residentialEdition not knownPartial
• IECC commercial2024 IECCVerified