ICC to Move Forward with 2021 Building Codes Despite NAHB Objections
The International Codes Council recently released its Final Action Report on proposed changes to Group B of its International Code, notably the International Residential Code and International Energy Conservation Code. The report did not address significant issues identified by NAHB after the online vote on the codes last fall and NAHB plans to appeal the decision.
NAHB sent a letter on Feb. 14 to ICC CEO Dominic Sims and President Greg Wheeler urging the building codes body to carefully reevaluate the validity of many approved voting officials, to reject two specific proposals as not meeting the intent of the energy code, and to reform some of its voting processes while retroactively reconsidering proposals that should not have been on the final ballot.
The results from the 2019 Online Governmental Consensus Vote, to determine 2021 building codes proposals, included several irregularities and discrepancies, specifically proposals for the International Energy Conservation Code (IECC). Some aggressive energy efficiency proposals that had been defeated at prior committee hearings and public comment hearings were approved in the online vote. When proposals are defeated at both hearings, they must get greater than a two-thirds majority in the online vote to overturn past results. It's a bar so high, no previous proposal had ever met the threshold with the online vote. But in this code cycle, 20 IECC proposals cleared the hurdle and came back to life.
The ICC Final Action Report left the results as reported after the online vote. The ICC found that all of its procedures had been correctly followed in the Group B development process.
While NAHB agrees that existing procedures were followed, staff believe those procedures were exploited, putting NAHB in a position to ask ICC to reconsider these proposals through their appeals process. Further, NAHB remains concerned that many of the codes changes will greatly reduce the functionality of the 2021 IECC and significantly impact housing affordability.
The deadline for an appeal is May 8.
NAHB is looking ahead to the development cycle for the 2024 codes, and is hopeful that the shortcomings of this cycle will be corrected so that the integrity of the ICC code development process, as well as the codes themselves, can continue to be the preeminent resource they are today.
For questions about the codes development process, please contact Craig Drumheller.
Latest from NAHBNow
Jan 08, 2026
There is Always Something Happening on the IBS Show FloorThe NAHB International Builders’ Show (IBS) is the largest light construction conference in the world with more than 1,700 exhibitors spread out over the entirety of the convention center in Orlando.
Jan 07, 2026
3 Game Changers to Transform the Way You Do BusinessThe Game Changers format pairs an industry professional with an expert outside the industry to tailor the latest techniques, strategies and approaches to the building industry. Learn how you can experience the best of both worlds — the business world and the building world — at the 2026 International Builders' Show in Orlando, Feb. 17-19.
Latest Economic News
Jan 07, 2026
State-Level Employment Situation: November 2025In November 2025, employment levels were largely unchanged across all states, with year-over-year growth holding near 2%. In contrast, construction employment showed greater variation, with some states experiencing declines of up to 7.5% while others posted gains approaching 10%.
Jan 07, 2026
Construction Job Openings Increased in NovemberThe count of open, unfilled positions in the construction industry increased in November, per the delayed Bureau of Labor Statistics Job Openings and Labor Turnover Survey (JOLTS). The current level of open jobs is down measurably from two years ago due to declines in construction activity, particularly in housing.
Jan 06, 2026
Mortgage Rates End 2025 at the Lowest Level of the YearLong-term mortgage rates have been declining since mid- 2025 and ended the year at their lowest level since September 2024. According to Freddie Mac, the 30-year fixed-rate mortgage averaged 6.19% in December, 5 basis points (bps) lower than November. Meanwhile, the 15-year rate declined 3 bps to 5.48%.