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
Mar 18, 2026
Statement of NAHB 2027 Third Vice Chairman Candidate Don DabbertThe NAHB Nominations Committee has certified one candidate for 2027 Third Vice Chairman: Don Dabbert, from Fargo, N.D., who is a member of the Building Industry Association of the Red River Valley.
Mar 17, 2026
Register for NAHB's 2026 Spring Membership DriveThis year's drive emphasizes the power of member-to-member connections by encouraging members to do business with fellow members.
Latest Economic News
Mar 17, 2026
Lumber Imports and Employment FallU.S. sawmill production was unchanged in the third quarter according to the Federal Reserve G.17 Industrial Production report. Utilization rates for sawmills and wood preservation industries remained near 70% despite a weakened demand environment from lower levels of residential construction in the third quarter of 2025.
Mar 17, 2026
Best Year for Missing Middle Construction Since 2007While not a huge jump, 2025 featured the highest construction volume for multifamily missing middle housing starts.
Mar 16, 2026
Builder Sentiment Inches Higher but Affordability Concerns PersistBuilder sentiment inched up in March even as builders continue to express affordability concerns stemming from elevated construction costs and shortages of buildable lots and labor.