ICC to Move Forward with 2021 Building Codes Despite NAHB Objections

Codes and Standards
Published

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.

Subscribe to NAHBNow

Log in or create account to subscribe to notifications of new posts.

Log in to subscribe

Latest from NAHBNow

Workforce Development | HBA

Mar 13, 2026

New Training Center Strengthens Florida HBA’s 50-Year Apprenticeship Program

Since 1973, the Northeast Florida Builders Association’s Apprenticeship Program has trained more than 2,500 skilled trades professionals for careers in residential construction.

Advocacy

Mar 12, 2026

Senate Passes Major Housing Legislation Despite Serious Industry Concerns

The Senate today passed the 21st Century ROAD to Housing Act in an attempt to bolster the nation’s housing supply.

View all

Latest Economic News

Economics

Mar 12, 2026

Single-Family Starts Remain Soft in January on Affordability Concerns

Elevated construction costs and constrained affordability conditions led to a reduction in single-family housing starts in January.

Economics

Mar 11, 2026

Inflation Steady Before War

After months of downward trend, inflation held steady at an eight-month low in February. This report does not reflect the recent surge in oil prices due to Iran conflict beginning February 28. Higher oil prices will likely translate into higher gasoline costs and impact other sectors associated with transportation including airline tickets.

Economics

Mar 11, 2026

Single-Family Permits End 2025 on a Soft Note

Single-family permitting softened over the course of 2025 and finished the year weaker than the prior year. After showing some resilience in 2024, permitting activity gradually lost momentum as elevated mortgage rates and ongoing affordability constraints weighed on buyer demand.