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

Construction Costs | Material Costs

Dec 23, 2025

Lumber Capacity Has Peaked for 2025

An annual revision to the Federal Reserve G.17 Industrial Production report shows current sawmill production levels above 2017 by 7.5%, but just 0.3% above 2023 levels.

Building Systems Councils

Dec 22, 2025

Can Offsite Housing Solve the Housing Affordability Crisis?

Offsite construction – a method in which components are planned, designed, fabricated in a factory setting and then transported and assembled onsite – is something more community-based organizations (CBOs) are turning to as a solution to the housing affordability crisis.

View all

Latest Economic News

Economics

Dec 22, 2025

State-Level Employment Situation: September 2025

In September 2025, nonfarm payroll employment was largely unchanged across states on a monthly basis, with a limited number of states seeing statistically significant increases or decreases. This reflects generally stable job counts across states despite broader labor market fluctuations. The data were impacted by collection delays due to the federal government shutdown.

Economics

Dec 19, 2025

Existing Home Sales Edge Higher in November

Existing home sales rose for the third consecutive month in November as lower mortgage rates continued to boost home sales, according to the National Association of Realtors (NAR). However, the increase remained modest as mortgage rates still stayed above 6% while down from recent highs. The weakening job market also weighed on buyer activity.

Economics

Dec 18, 2025

Lumber Capacity Lower Midway Through 2025

Sawmill production has remained essentially flat over the past two years, according to the Federal Reserve G.17 Industrial Production report. This most recent data release contained an annual revision, which resulted in higher estimates for both production and capacity in U.S. sawmills.