What Does the Recent WOTUS Rule Change Mean for Your Projects?
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.
Latest from NAHBNow
Apr 15, 2026
NAHB Mourns the Passing of Former Wichita Area BA President and CEO Wess GalyonWesley “Wess” Galyon, who served as president and CEO of the Wichita Area Builders Association for forty years, passed away.
Apr 15, 2026
Builder Sentiment Posts Notable Decline on Economic UncertaintyBuilder confidence in the market for newly built single-family homes fell four points to 34 in April, according to the NAHB/Wells Fargo Housing Market Index (HMI) released today. This is the lowest level since September 2025.
Latest Economic News
Apr 16, 2026
Young Adults Report More Interest in the Construction Trades: 2026 SurveyNAHB estimates the U.S. has a structural housing deficit of 1.2 million units. Among the myriad of headwinds home builders face trying to close that gap is the industry’s chronic shortage of workers in the construction trades.
Apr 15, 2026
Builder Sentiment Posts Notable Decline on Economic UncertaintyEconomic uncertainty coupled with rising building material costs and interest rates resulted in a sharp decline in builder sentiment in April as the housing market enters into the heart of the spring buying season.
Apr 14, 2026
Higher Energy Prices Increase Residential Construction CostsEnergy input prices increased in March at their fastest pace since June of 2020 as the conflict in Iran shocked critical global supply chains. Building material prices, excluding energy, rose for the eleventh straight month. Price growth for trade services slowed while transportation and warehousing price growth accelerated.