What Does the Recent WOTUS Rule Change Mean for Your Projects?

Environment
Published

As NAHBNow previously reported, the U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers (the agencies) recently halted implementation of the "waters of the U.S." (WOTUS) regulatory definition as finalized under the Trump administration's Navigable Waters Protection Rule (NWPR), reverting back to a pre-2015 WOTUS regulatory definition.

The Sept. 3 announcement was an abrupt reversal because the agencies had previously committed to a series of public hearings, followed by a two-step federal rulemaking process, during which time the WOTUS regulatory definition as finalized under the NWPR was to remain in effect nationwide.

To help builders and developers understand how to move forward with ongoing or planned projects, NAHB developed FAQs to provide interim (unofficial) guidance based upon the Clean Water Act (CWA) statute, existing regulatory guidance documents, and past practices by the agencies during previous instances of changing interpretations of the WOTUS regulatory definition.

NAHB will continue to press the agencies for additional guidance concerning the status of the ruling by the U.S. District Court for the District of Arizona to vacate the NWPR, timing of expected field hearings by the agencies on a new WOTUS definition, and a timeframe for when the Biden administration will propose a new WOTUS regulatory definition under the CWA.

You can access the WOTUS FAQs on nahb.org. For more information, contact Mike Mittelholzer.

Subscribe to NAHBNow

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

Log in to subscribe

Latest from NAHBNow

Legal

Mar 06, 2026

NAHB Commends Court Ruling Vacating HUD 2021 IECC Mandate

NAHB Chairman Bill Owens issued the following statement after the Eastern District Court of Texas issued its decision in a lawsuit brought by NAHB and 15 states challenging the legality of the HUD and USDA rule imposing the 2021 International Energy Conservation Code and the 2019 ASHRAE 90.1 standard on certain housing programs.

Membership

Mar 06, 2026

Bill Truex Seeks Certification as a Candidate for 2028 NAHB Third Vice Chairman

The NAHB Nominations Committee announces that Bill Truex, president, Truex Preferred Construction in Englewood, FL, has submitted his Letter of Intent to seek certification as a candidate for NAHB 2028 Third Vice Chairman.

View all

Latest Economic News

Economics

Mar 06, 2026

U.S. Economy Loses 92,000 Jobs in February

The U.S. labor market weakened in February, as payroll employment declined and the unemployment rate rose to 4.4%. The cooling labor market could place the Federal Reserve in a challenging position as policymakers weigh slower job growth against inflation pressures from rising oil prices.

Economics

Mar 05, 2026

Builders Identify Key Long-Term Forces Shaping Housing Demand and Industry Health

Home builders are keenly aware of the complex long-term outlook ahead for the home building industry. A recent NAHB/Wells Fargo HMI survey asked builders to assess the impact of 14 major trends and forces on the health of the industry and housing demand over the next 10 years.

Economics

Mar 05, 2026

Affordability Posts Mild Gains in Second Half of 2025 but Crisis Continues

Though new and existing homes remain largely unaffordable, the needle moved slightly in the right direction in the second half of 2025, according to the latest data from the National Association of Home Builders (NAHB)/Wells Fargo Cost of Housing Index (CHI).