UT

Utah Building Codes

Current base code, county-level adoption data, special-zone overlays, and source links for restoration contractors.

Counties
29
ZIPs
357
Special zones
207
Local amendments
0

Current State Code

Verified state-level adoption record from SkyCanvass jurisdiction data.

Adoption model
statewide
Base code
irc_2021_ut
Effective date
2022-01-01
Next update
Not scheduled

Utah State Construction Code based on 2021 I-Codes with UT amendments. Statewide mandatory. Climate Zones 5B/6B. Seismic SDC D (Wasatch Front fault). Heavy snow loads in mountains. WUI fire risk. 29 counties.

County Guides

County pages include local code editions, amendment flags, and jurisdiction-specific links.