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

Member Benefits | Membership

Jan 28, 2026

NAHB Expands Member Savings Program with New Partners and Big Benefits in 2026

NAHB members saved a total of more than $40 million in 2025 through a variety of member-exclusive offers. And in 2026, the portfolio of partners and programs within the NAHB Member Savings Program continues to grow.

Awards | Leading Suppliers Council

Jan 28, 2026

Transparent Flashing from Typar Earns 2026 Spark Innovation Award

The NAHB Leading Suppliers Council (LSC) recently announced that Typar’s Clear Acrylic Flashing is the winner of the 2026 Spark Award. The flashing is the first and only product of its kind on the market that allows the pattern on window nailing fins to be completely visible upon installation.

View all

Latest Economic News

Economics

Jan 28, 2026

Holding Pattern for the Fed

The Fed paused its easing cycle at the conclusion of the January meeting of the Federal Open Market Committee, the central bank’s monetary policy body. The Fed held the short-term federal funds rate at a top rate of 3.75%, the level set in December. This marked the first policy pause since the Fed resumed easing in September of last year.

Economics

Jan 27, 2026

State-Level Employment Situation: December 2025

With few exceptions, year-over-year nonfarm employment levels were relatively stable across states at the end of 2025, ranging from a decline of 4.2 percent to a gain of 1.8 percent. Construction employment, however, showed considerably greater dispersion, with declines of up to 9.3 percent in some states and gains approaching 9.0 percent in others.

Economics

Jan 26, 2026

Pool Permitting Falls Lower in 2025

After a rapid expansion of residential swimming pool and spa construction following the pandemic, permit levels in the latest monthly index for December fell to their lowest level since 2020.