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

Labor | Advocacy
Sep 25, 2026
NAHB Responds as Immigration Enforcement Keeps Legal Workers Off Job Sites

As the housing industry faces a severe labor shortage, NAHB members report that increased immigration enforcement and jobsite raids are heightening worker fears and further straining the construction labor pool.

Advocacy
Sep 24, 2026
NAHB Helps Kick Off Innovative Housing Showcase on the National Mall

NAHB Chairman Bill Owens was on the National Mall in Washington, D.C., yesterday to help open the 2026 Innovative Housing Showcase, an annual event presented by the U.S. Department of Housing and Urban Development (HUD).

View all

Latest Economic News

Economics
Sep 25, 2026
State and Local Government Tax Revenue Grows

Total tax revenue collected by state and local governments was up 5.8% from a year ago in the second quarter, according to the Quarterly Summary of State and Local Government Tax Revenue published by the U.S. Census Bureau. This was the highest year-over-year growth since the third quarter of 2024 (7.2%).

Economics
Sep 24, 2026
New Home Sales Rise as Affordability Challenges Continue

New home sales improved in August, but the monthly gain masked continued weakness in the broader new-home market. Elevated mortgage rates and ongoing affordability challenges continue to constrain demand, with new home sales remaining below last year’s pace and year-to-date sales lower than in 2025.

Economics
Sep 24, 2026
Single-Family Detached Homes Still Dominate Among the 55+ Population

Adults ages 55 and older make up a large and growing share of the U.S. population and play an important role in the U.S. housing market. In 2024, around 103 million Americans were ages 55 or older, ranging from adults still in the labor force to retirees.