Building Energy Code

June 18, 2023


Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more detailed information about building energy codes, visit the DOE and BCAP websites.

Changes to the energy code are submitted to the Uniform Building Code Commission. The proposed change is reviewed by the Commission at a monthly meeting to decide if it warrants further consideration. If accepted, the Commission determines if enforcement will be enacted as a statewide amendment or restricted to a specific locality.

Effective July 1, 2019 , all residential buildings must comply with the 2015 International Energy Conservation Code (IECC) using the compliance pathways, plan submittal, and plan review as specified within that code. All commercial buildings must comply with the 2018 IECC and ASHRAE 90.1-2016. Plans and specifications must be submitted when required by the local jurisdiction. Field inspections, as part of the normal building inspection process, are required prior to the issuance of a certificate of occupancy. 

If the local compliance agency refuses to establish a method of appeal to their interpretation and application of the State Uniform Building Standards, the appealing party may petition the Building Code Commission for agency action on the issue.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Utah
Incentive Type: Building Energy Code
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
  • Comprehensive Measures/Whole Building
Residential Code: 2015 IECC with significant state-specific amendments, mandatory statewide. REScheck is available to show compliance.
Commercial Code: 2018 IECC, ASHRAE 90.1-2016, mandatory statewide. COMcheck is available to show compliance.
Code Change Cycle: Code changes are ongoing with new editions of codes adopted when they become available. Most recent update took effect: July 1, 2019.


Name: Shawna Cuan
Organization: Office of Energy Development
Address: P.O Box 144845
Salt Lake City UT 84114
Phone: (801) 538-8724

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.