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

Remodeling | Awards

Jun 26, 2026

Meet Robert Wood, the 2025 NAHB Remodeler of the Year

When Robert Wood and his wife Heather first started their company Mountainwood Homes back in 2008, one of their goals was to win a national award. That goal was achieved at the 2026 International Builders’ Show in Orlando, when Robert was named NAHB’s Remodeler of the Year.

IBS | Design

Jun 25, 2026

Custom Builder Transforms a Tuscan Time Capsule Into a Modern Showpiece for IBS 2027

When the International Builders’ Show returns to Las Vegas in 2027, attendees will get a firsthand look at how an aging luxury residence can be transformed into a contemporary showpiece.

View all

Latest Economic News

Economics

Jun 26, 2026

Property Tax Revenue Leads State and Local Tax Growth in Q1 2026

Property tax revenue collected by state and local governments was higher in the first quarter of 2026 according to the Census Bureau’s quarterly summary of state and local tax revenue.

Economics

Jun 25, 2026

State-Level Economic Growth Strengthened in the First Quarter of 2026

State economic growth strengthened in the first quarter of 2026, with real GDP increasing in 46 states and the District of Columbia. According to the Bureau of Economic Analysis (BEA), state-level growth rates ranged from a 4.5% annualized increase in Washington to a 1.6% decline in South Dakota, while Delaware’s economy was essentially unchanged during the quarter.

Economics

Jun 25, 2026

PCE Inflation Hits 3-Years High in May

As the Iran conflict pushed up energy prices, the Personal Consumption Expenditures (PCE) Price Index—the Federal Reserve’s preferred inflation gauge—accelerated to a three-year high in May.