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

Economics

Mar 30, 2026

Micro Markets Lone Bright Spot for Single-Family Home Building in Fourth Quarter

In a sign of ongoing affordability challenges and a tepid housing market, single-family construction fell across all geographic regions in the second half of 2025, with the exception of low-density, low-populated micro counties. Conversely, multifamily construction posted gains across all geographic regions. These are the major findings of the latest NAHB Home Building Geography Index (HGBI) for the final two quarters of 2025 released today.

Economics

Mar 27, 2026

Aging Housing Stock Keeps Demolition Activity Elevated

Residential demolition activity in 2025 dipped slightly by 0.1% compared to 2024, but remained well above pre-pandemic levels. Teardowns are widely viewed as a signal of reinvestment, often indicating where new construction is likely to follow.

View all

Latest Economic News

Economics

Mar 30, 2026

NAHB HBGI: Micro Markets Lone Bright Spot for Single-Family Building in Fourth Quarter

Single-family construction declined further in the fourth quarter in all but sparsely populated micro counties, according to the NAHB Home Building Geography Index (HBGI).

Economics

Mar 26, 2026

State/Local Property Tax Revenue Rises Past $210 Billion in the Fourth Quarter

Property tax revenue collected by state and local governments rose for the ninth consecutive quarter according to the Census Bureau’s quarterly summary of state and local tax revenue.

Economics

Mar 25, 2026

Age of Housing Stock by State

According to the latest data from the 2024 American Community Survey (ACS), the median age of owner-occupied homes has reached 42 years old. The age of the housing stock is an important remodeling market indicator.