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 11, 2026
Emerging Leader Grant Opens the Door to National Leadership for More MembersIs a member leader at your HBA planning to attend their first NAHB leadership meeting this spring? Encourage them to apply for the NAHB Emerging Leader Grant. Applications are due April 20.
Mar 11, 2026
Podcast: Massive Win in Battle Over Federal Energy Code MandatesOn the latest episode of NAHB’s podcast, Housing Developments, CEO Jim Tobin and COO Paul Lopez welcome VP of Legal Advocacy Tom Ward to discuss the impact of the recent court decision on the Department of Housing and Urban Development’s (HUD) and the Department of Agriculture’s (USDA) final determination to impose the 2021 International Energy Conservation Code (IECC) and the 2019 ASHRAE 90.1 standard on certain single-family and multifamily housing programs.
Latest Economic News
Mar 11, 2026
Inflation Steady Before WarAfter 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.
Mar 11, 2026
Single-Family Permits End 2025 on a Soft NoteSingle-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.
Mar 10, 2026
Existing Home Sales Rose in FebruaryFollowing the sharp decline last month, existing home sales bounced back in February as housing affordability improved. Lower mortgage rates and moderating home price growth helped pull buyers back to the market. However, tight inventory will likely continue to push home prices higher if demand outpaces supply growth.