ICC’s Plan to Limit IECC Development

Valeria Macias

Posted by Valeria Macias

The International Energy Conservation Code (IECC) is a success story benefiting housing affordability, America’s energy, economic and environmental policies and was designed to meet up with energy-efficient building demands through model code regulations. Recently, the International Code Council (ICC) leadership announced its consideration in changing the process for developing the IECC.

This has upset many local and state government officials, efficiency advocates, architects and want answers from ICC leadership. The new proposal includes a small committee instead of thousands of governmental members; thus, eliminating state and local officials from providing meaningful input on future revisions to energy building codes.

Burnham’ Director of Code, Christopher Chwedyk,AIA, provids his take on the issue.

I serve on LTCDPC representing the American Institute of Architects and our committee has met diligently over the past several months to make recommendations to the ICC Board on a number of issues related to the outcomes of the Appeals Board hearings related to Online Voting; Cost Impact; Voting Guides; Voter Eligibility; and Validation Process.

However, the Appeals Board apparently also recommended that the Board consider developing a Code Council energy standard to replace the IECC and Chapter 11 of the IRC because of the “highly technical and evolving nature of energy efficiency that requires further debate, which is not provided for in the current process due to time constraints.”

Is this somehow a failure of the governmental consensus process applicable to all ICC codes? Why is the IECC suddenly now being considered differently from the IBC, IFC, and the other ICC codes? Isn’t the IECC a life safety code as well? Why in this instance is a Standard better than a Code?

Rather than explore these questions or alternate solutions, as has been suggested by ASHRAE and others, there appears to be a rush to change direction as a direct reaction to the Appeals Board challenges by a few highly inflectional and oppositional organizations. In November, with the motion being made by a representative of the NAHB, the LTCDP Committee voted for the change just 10 days after the subject was brought up, and the vote was far from unanimous (9 votes in favor, 6 opposed, with 2 abstaining).

If you would like more information regarding the decisions of this committee or related issues, please feel free to contact our Director of Code Christopher Chwedyk at cchwedyk@burnhamnationwide.com

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Did ICC actually go through with changing how the IECC is developed?
Yes - the ICC Board approved the shift in March 2021, and the change took effect starting with the 2024 IECC, which was the first edition developed under the new standards-development process rather than the traditional governmental consensus voting used for the IBC, IFC, and other I-Codes.
What's actually different about how the IECC gets updated now versus before?
Final decisions now rest with appointed Commercial and Residential Consensus Committees rather than with a vote open to all ICC governmental members. The code itself still carries the same name and three-year update cycle, and committee meetings remain open to public participation and comment - but governmental members no longer hold the final vote the way they still do for other I-Codes.
Did this change end up reducing local government input the way critics feared?
It's structured to preserve some government voice - one third of committee membership and the voting committee chairs are reserved for government representatives - but it's true that final approval no longer requires governmental consensus the way it does for other codes, which was the core objection raised in this post.
Is this still how the IECC is being developed today, or did anything change again?
It's still the current process - the 2027 IECC (now in development as of 2026) is being developed under this same standards process for the second full cycle, with committee work and public comment periods following the same structure established for the 2024 edition.
How much more energy-efficient is the current IECC compared to older editions?
The 2024 IECC achieved roughly a 7.8% site energy savings and 6.6% energy cost savings compared to the 2021 edition, according to a U.S. Department of Energy determination - alongside added flexibility in how builders can meet compliance.
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