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

Environmental Issues | Advocacy
Sep 15, 2026
NAHB Provides Agency Official Inside Look to Inform Changes to Stormwater Permitting

NAHB members and staff provided a tour of several residential subdivisions in Northern Virginia to an official from the U.S. Small Business Administration’s (SBA) Office of Advocacy. The tour offered an opportunity to show the official how NAHB members comply with construction stormwater requirements and to discuss the federal construction general permit (CGP) for stormwater discharges from active residential land development and construction sites.

Associate Members Committee | IBS
Sep 14, 2026
Associate Members Share Their Top Networking, IBS Advice

We spoke with three Associate members about their best tips on how to network with peers virtually throughout the year, and how to network in-person at key events such as the International Builders’ Show.

View all

Latest Economic News

Economics
Sep 11, 2026
Inflation Persisted in August

Inflation in August remained sticky as renewed tensions with Iran continued pushing up oil prices, keeping pressure on the Fed to consider a rate hike at its upcoming meeting.

Economics
Sep 10, 2026
Existing Home Sales Fall despite Improved Inventory

Existing home sales fell for the third consecutive month as record-high home prices and elevated mortgage rates weighed on buyers. Mortgage rates resumed an upward trend after the July ceasefire ended.

Economics
Sep 10, 2026
Energy Prices Rise Again in August

Residential building material prices, excluding energy, rose 0.2% in August and were up 5.1% from a year ago. Energy prices rose sharply in August, as prices for energy inputs to residential construction rose 6.6% over the month.