Building Energy Code

May 12, 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.

The energy provisions contained in Appendix Chapter 53 of the Uniform Building Code are recommended statewide minimums that local jurisdictions may, but are not required to, adopt and enforce. Code provisions may be modified by the local enforcement community without state approval to be more restrictive than the Chapter 53 requirements. The eight most populous jurisdictions in the state have advanced building codes in place, including the 2009 IECC and the 2012 IECC. The state recommends compliance with the energy codes for all buildings.

Proposed changes to the state energy code may be submitted to the Wyoming Department of Fire Prevention and Electrical Safety (DFPES). The DFPES reviews proposed changes and submits its recommendations to the Governor-appointed Building Codes Council. Changes approved by the council are then adopted at the annual September meeting and become effective in January of the following year. Local adoption is required before energy provisions can be enforced.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Wyoming
Incentive Type: Building Energy Code
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
  • Comprehensive Measures/Whole Building
Residential Code: 1989 MEC may be adopted and enforced by local jurisdictions
Commercial Code: 1989 MEC may be adopted and enforced by local jurisdictions
Code Change Cycle: Three-year review cycle concurrent with the publications of new editions of the model codes.


Name: Sherry Hughes
Organization: Wyoming Business Council
Address: 214 W. 15th Street
Cheyenne WY 82002
Phone: (307) 777-2824

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.