ICC Board Agrees with NAHB on Codes Appeal
The ICC Board of Directors Wednesday agreed with NAHB's appeal related to a proposed change to the International Energy Conservation Code (IECC) that dealt with the efficiency of water heaters. NAHB and others argued, and ICC agreed, that the changes would have preempted federal law or would have exposed adopting jurisdictions to potential litigation related to the proposed requirements.
The ICC Board decided to reject RE126-19 (and RE107-19) on the basis that "potentially preempted provisions in the I-Codes is inconsistent with the spirit, intent and mission of the Code Council." In addition to NAHB, the American Gas Association, American Public Gas Association and American Heating Refrigeration Institute filed similar appeals.
RE126-19 was a proposal submitted by the National Resources Defense Council that put additional requirements on water heating products. NAHB and the other appellants believed the requirements were inconsistent with the National Appliance and Energy Conservation Act (NAECA) by attempting to institute requirements inconsistent with federal law and would put ICC and adopting entities at risk of legal action should the proposed requirements be instituted.
While the ICC disagreed with one point in the appeal that its development process was violated, the Board did agree that incorporating requirements contrary to federal law would be problematic. Accordingly, the Board determined that the approved language from RE107-19 and RE126-19 will not be included in the 2021 International Residential Code (IRC) or IECC.
This was the first of three rulings by the Board on NAHB appeals. The final ICC Board decision on the last two appeals related to scope and intent and the codes development process and voting eligibility are expected around mid-October.
For more information about the codes appeals, visit nahb.org.
Latest from NAHBNow
Feb 06, 2026
Learn About the 2024 IECC in Free Video Series for NAHB MembersNAHB is now offering members a free educational video series on the 2024 International Energy Conservation Code. The videos break down key differences between the 2024 IECC and past editions, focusing on changes that improve usability and what they mean for construction costs.
Feb 05, 2026
NAHB Senior Officers Bring a Housing Agenda to Capitol HillAddressing a wide range of legislative and regulatory issues with serious repercussions for the nation’s supply of affordably priced housing, NAHB First Vice Chairman Bill Owens and Second Vice Chairman Bob Peterson met with congressional leaders on Capitol Hill to pursue a strong national agenda for housing.
Latest Economic News
Feb 05, 2026
Job Openings Fall as Labor Market WeakensRunning counter to the data for the full economy, the count of open, unfilled positions in the construction industry increased in December, 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.
Feb 04, 2026
Mortgage Rates Declined Despite Higher Treasury YieldsLong-term mortgage rates continued to decline in January. According to Freddie Mac, the 30-year fixed-rate mortgage averaged 6.10% last month, 9 basis points (bps) lower than December. Meanwhile, the 15-year rate declined 4 bps to 5.44%. Compared to a year ago, the 30-year rate is lower by 86 bps. The 15-year rate is also lower by 72 bps.
Feb 03, 2026
Homeownership Rate Inches Up to 65.7%The latest homeownership rate rose to 65.7% in the last quarter of 2025, according to the Census’s Housing Vacancy Survey (HVS). While this was a modest quarterly increase, the broader picture continues to reflect significant affordability challenges. With mortgage interest rates remaining elevated, and housing supply still tight, housing affordability is at a multidecade low.