Data / Federal rules / 2025-13863
Establishment of Restricted Area R-4601 in the Vicinity of Townsend, MT
The Federal Aviation Administration published this final rule in the Federal Register on July 23, 2025. It took effect on October 2, 2025.
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What the agency says
This action establishes restricted area R-4601 in the vicinity of Townsend, MT. The new restricted area will provide the Montana Army National Guard (MTARNG) and the 40th Helicopter Squadron with the ability to conduct aerial gunnery training in the Limestone Hills Training Area (LHTA).
Key facts
- Document number
- 2025-13863
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- July 23, 2025
- Takes effect
- October 2, 2025
- Dates
- Effective date 0901 UTC, October 2, 2025.
- Docket
- Docket No. FAA-2023-2371; Airspace Docket No. 22-ANM-42
- Regulation ID (RIN)
- 2120-AA66
- Code of Federal Regulations
- 14 CFR 73
- Topics
- Airspace
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on airspace · Published in July 2025
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.