New WOTUS Rule Becomes Effective Today
The “Navigable Waters Protection Rule” (NWPR), which is the Trump Administration’s new definition of “waters of the United States” (WOTUS), becomes effective today in every state except Colorado.
Implementation begins after Judge Joseph Seeborg of the Northern District of California denied a request last Friday from 17 states, the North Carolina Department of Environmental Quality, the District of Columbia, and the City of New York to issue a preliminary injunction and block the rule nationwide.
Hours later, a district court judge in Colorado issued a preliminary injunction solely in the state of Colorado, which is considering establishing its own wetland permitting program. NAHB had moved to intervene in both of these cases before the decisions were issued.
The NWPR will provide several benefits to builders and developers while continuing to protect important water bodies. For example, it encompasses traditional navigable waters and territorial seas, which Congress clearly intended for federal oversight. However, it also narrows the extent of federal jurisdiction by excluding isolated water bodies, “ephemeral” waters that form only in response to rain, and most ditches. As a result, fewer residential construction projects will trigger federal permitting requirements.
As the rule becomes effective, NAHB is working with the Environmental Protection Agency (EPA) and U.S. Army Corps of Engineers to ensure that builders and developers realize its potential benefits. On June 19, NAHB and other industry trade associations met virtually with EPA Assistant Administrator for the Office of Water Dave Ross, Principal Deputy Assistant Secretary of the Army (Civil Works) Ryan Fisher, and other senior political and career agency employees to discuss issues related to the rule implementation. The discussion covered issues such as how to distinguish an excluded ephemeral feature from a jurisdictional intermittent feature, identify adjacent wetlands, and apply the new definition of "uplands" that applies to features lacking all three wetland factors (i.e., plants, soils, hydrology). The meeting marked the beginning of an ongoing dialogue.
Visit nahb.org/wotus for updated resources, including an analysis of the new rule, a video on its implementation, and a PowerPoint presentation that describes its key features and changes compared to prior rules.
NAHB staff is available for presentations or technical assistance. For more information, please contact Michael Mittelholzer at [email protected].
Latest from NAHBNow
Mar 19, 2026
New Home Sales Down in January on Weather DisruptionsEconomic uncertainty, severe winter weather and housing affordability concerns acted as headwinds on the market in January.
Mar 18, 2026
How Builders Can Protect Capital from Zoning Deal-KillersWhen teams have access to land data that goes beyond basic zoning compliance, the site evaluation process accelerates. With Acres Intelligence, these teams can navigate land-use decisions more confidently and efficiently.
Latest Economic News
Mar 19, 2026
New Home Sales Decline in January on Weather DisruptionsNew home sales declined in January, reflecting typical monthly volatility as well as weather-related disruptions.
Mar 19, 2026
Fourth Quarter 2025 Multifamily Construction DataAccording to NAHB analysis of quarterly Census data, the count of multifamily, for-rent housing starts increased year-over-year during the fourth quarter of 2025.
Mar 18, 2026
Holding Pattern Continues for the FedThe Fed continued its current pause for rate reductions at the conclusion of the March meeting of the Federal Open Market Committee, the central bank’s monetary policy body.