Data / Federal rules / 2026-03708
National Environmental Policy Act Implementing Regulations
The Interior Department published this final rule in the Federal Register on February 24, 2026. It took effect on February 24, 2026.
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What the agency says
The Department of the Interior (Department or DOI) is adopting the interim final rule (IFR) published on July 3, 2025, with minor changes, as final. In the IFR, DOI provided a 30-day comment period for the public to review and make comments. This final rule addresses public comments and adopts as final the IFR, with certain substantive changes as explained herein. The IFR partially rescinded DOI's regulations implementing the National Environmental Policy Act (NEPA) and made necessary targeted updates to those provisions that were not repealed. DOI will henceforth maintain the majority of its NEPA procedures--which apply only to DOI's internal processes--in a Departmental Handbook separate from the Code of Federal Regulations (CFR).
Key facts
- Document number
- 2026-03708
- Type
- Final rule
- Action
- Final rule
- Agency
- Interior Department
- Published
- February 24, 2026
- Takes effect
- February 24, 2026
- Dates
- This final rule is effective February 24, 2026.
- Docket
- 267D0102DM; DS6CS00000; DLSN00000.000000; DOI-2025-0004
- Regulation ID (RIN)
- 1090-AB18
- Code of Federal Regulations
- 43 CFR 46
- Topics
- Environmental impact statements; Environmental protection
- Significant
- Yes, under Executive Order 12866
- Pages
- 25
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| Endangered and Threatened Wildlife and Plants; Four Species Not Warranted for Listing as Endangered or Threatened Species 2026-20315 | Proposed rule | Oct 5 |
| Big Cypress National Preserve; Off-Road Motor Vehicles 2026-20251 | Proposed rule | Oct 2 |
Everything from the Interior Department · Rules on environmental impact statements · Rules on environmental protection · Published in February 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.