HUD and USDA’s Six-Month Delay on Enforcing 2021 IECC Rule A Win for Housing

Codes and Standards
Published

This post has been updated.

In a win for NAHB and the housing industry, the Trump administration has announced a six-month delay in the implementation of the Biden administration’s mandatory energy code, an important step forward to help ease the nation’s housing affordability crisis.

Specifically, the Department of Housing and Urban Development (HUD) and Department of Agriculture (USDA) will wait an additional six months before enforcing the compliance dates for adopting the 2021 International Energy Conservation Code (IECC) and ASHRAE 90.1-2019 as the minimum energy-efficiency standards for certain single-family and multifamily housing programs.

“This six-month pause by HUD and USDA is an important step forward to help ease the nation’s housing affordability crisis,” said NAHB Chairman Buddy Hughes. “Compliance with this rule would make it much harder for home builders and multifamily developers to build housing that is available and affordable for American families.

In fact, the Home Innovation Research Labs has found that compliance with the 2021 IECC can add more than $20,000 to the price of a new home, but in practice, home builders have estimated increased costs of up to $31,000.

The updated compliance dates are as follows:

Program Initiation Event Compliance Date
HOME and HTF

(If HOME/HTF funding is layered with other HUD funds, the later program compliance date applies)
Participating Jurisdiction (PJ) or HTF Grantee Funding Commitment Nov. 28, 2024
Federal Housing Administration-Insured (FHA-Insured) Multifamily Pre-application Submitted to HUD Nov. 28, 2025
FHA-Insured Single Family Building Permit Application May 28, 2026
Public Housing Capital Fund HUD approvals of development proposals for new Capital Fund or mixed financed projects Nov. 28, 2025
Project Based Vouchers To be determined in further guidance April 1, 2026
Competitive Grants (Choice Neighborhoods, Section 202, Section 811) Notice of Funding Opportunity (NOFO) Publication Next published NOFO after six months from the date of publication of this notice
All programs, persistent poverty rural areas Based on program-specific event, above May 28, 2026
Rental Assistance Demonstration (RAD) N/A Already effective by Federal Register Notice July 27, 2023

NAHB commends the Trump administration for recognizing the importance of bringing down the cost of housing and will continue to pursue all avenues on the congressional, regulatory and legal fronts to overturn this harmful energy code rule.

Subscribe to NAHBNow

Log in or create account to subscribe to notifications of new posts.

Log in to subscribe

Latest from NAHBNow

IBS

Jun 19, 2026

NAHB Kicks Off IBS Webinar Series Next Week

Back this year with another great lineup, the NAHB | IBS Education Webinar series offers a valuable way to continue learning from some of the industry’s most respected educators and thought leaders throughout the year.

Digital Media

Jun 19, 2026

NAHB Members Featured Among Nation’s Top 200 Builders

The May/June 2026 issue of Pro Builder unveiled its annual Top 200 report, which ranks the leading home builders in the United States by 2025 revenue and includes insights about the top trends affecting the industry.

View all

Latest Economic News

Economics

Jun 18, 2026

Gains for Household Real Estate Assets

The market value of households’ real estate assets rose to a new high in the first quarter reaching $48.7 trillion, according to the most recent release of U.S. Federal Reserve Z.1 Financial Accounts. This level is 1.7% higher than in the fourth quarter and is 2.6% higher than a year ago.

Economics

Jun 17, 2026

A Laconic Statement: Hawkish Hold and New Plans from the Fed

With a new Fed Chair and plans for evolving operating strategies, the Federal Reserve maintained its target policy rate at the conclusion of the June Federal Open Market Committee (FOMC) meeting. For the fourth consecutive meeting, the FOMC maintained the short-term federal funds rate at a top rate of 3.75%.

Economics

Jun 16, 2026

Housing Starts Weaken in May as Multifamily Construction Slows

Housing starts fell sharply in May, driven by a steep drop in multifamily construction. Meanwhile, single-family buildings also slipped amid high interest rates, rising construction costs and ongoing labor shortages.