The 2026 Nationwide Permits: What Changed, What Didn't, and What It Means for Your Next Site
The U.S. Army Corps of Engineers' nationwide permits are the fast lane for work in streams and wetlands. If a project fits one, you avoid the public notice and longer review of an individual permit. The current set took effect on March 15, 2026 and runs to March 15, 2031. Here is what changed, what stayed the same, and what it means for Virginia projects.
The short version
The Corps published its final rule on January 8, 2026. It reissued 56 of the 57 permits from 2021, added one new permit, and let one lapse. NWP 56, which covered finfish mariculture, was not reissued. The new permit, NWP 60, covers fish passage projects.
For most land development, the framework is the same one you worked under in 2021. Practitioner summaries describe the changes as mostly clarifications.
What didn't change, and why that matters
The limits that decide whether a project qualifies stayed put. NWP 39, the permit most commercial and institutional sites use, including data centers and schools, still caps the loss of waters at half an acre and still requires a preconstruction notification, according to Sidley Austin's summary of the rule. NWP 29, used for residential developments, keeps its own limits as well. The Corps declined to raise acreage caps and pointed to regional general permits for flexibility instead.
In practice, the half-acre line is still the most important number on a grading plan near a stream. Cross it and you're in an individual permit, with a public notice, more alternatives analysis and months more review.
What did change
- NWP 39's examples now name data centers, including AI facilities, so there's no question the permit applies to them.
- General conditions and definitions were updated, including a new definition of nature-based solutions.
- The utility line permits, NWPs 12, 57 and 58, gained notes encouraging early coordination with the U.S. Coast Guard where lines cross navigable waters. NWP 57 covers electric and telecommunications lines, including the transmission work that follows large data center campuses.
- A new permit, NWP 60, covers fish passage projects.
The transition deadline
Work authorized under the 2021 permits that had started, or was under contract, before they expired on March 14, 2026 generally gets 12 months to finish under the old terms. That window closes on March 14, 2027. Anything that can't finish by then needs authorization under the 2026 permits. If you have a project that stalled, check its status with the Norfolk District now.
Mitigation still applies
A nationwide permit isn't a pass on mitigation. When a preconstruction notification is required, the Corps can require compensatory mitigation to keep a project's effects minimal, and it generally does so for wetland losses above one-tenth of an acre. In Virginia, DEQ's own Virginia Water Protection program also applies to impacts on state waters. Buying credits from an approved bank is the most common way to satisfy both. Our guide to banks, in-lieu fee programs and do-it-yourself mitigation walks through the options.
Virginia adds its own layer. In September 2025, DEQ announced its tentative decision to certify most of the 2026 nationwide permits under Section 401 of the Clean Water Act. For work those permits cover, that generally means no separate state application. A DEQ application is still required when the Corps decides the work isn't in federal waters, isn't covered by a nationwide permit, or needs an individual permit.
Planning tips for 2027 projects
- Delineate early and design to stay under half an acre of impact if the site allows it.
- Check the Norfolk District's regional conditions, which add Virginia-specific requirements to the national terms.
- Line up mitigation credits before you file the preconstruction notification, so the Corps sees a complete plan.
- For transmission and utility lines that cross navigable waters, coordinate with the Coast Guard early, as the new notes recommend.
When your project needs stream or wetland credits in Northern Virginia, send us the location and impact and we'll confirm whether one of our banks can serve it. Call (540) 251-1321.
