Uniform Building Code Commission:
Utah Uniform Building Code Commission Department of 
Occupational and Professional Licensing

P.O. Box 146741 
Salt Lake City, UT 84114-6741 
Phone: (801) 530-6727 
Fax: (801) 530-6511 

Adopted I-Codes:
2018 International Building Code (IBC) 
2015 International Residential Code (IRC) 
2018 International Energy Conservation Code (IECC)
Applicability (statewide, local, limited): STATEWIDE

The State Construction and Fire Codes Act (Title 15A) governs how building codes are adopted in Utah. For each update of a “nationally recognized construction code” The Uniform Building Code Commission has two years to prepare a report for the Utah State Legislature stating recommending updates and modifications and compiles costs and benefits for each recommended change. The Legislature’s Business and Labor Interim Committee reviews the report and files appropriate legislation for the next legislative session. For the IRC and residential portions of the IECC, this process occurs every other cycle. Political subdivisions may not enforce a rule or requirements that are more restrictive than the state construction code. Membership to The Uniform Building Code Commission and Utah State Fire Prevention Board are approved by the State Legislature. 

Please review the information found here for code adoption:  


Updated codes to 2018 editions on July 1, 2019. Section R302.13 was maintained in the State adoption to the 2015 I Codes. 

Tall Mass Timber Adoption

The tall mass timber provisions went into effect in 2021.


Page last updated: December 2023