New air route T-581 links Missoula and Kalispell, Montana
The FAA creates area navigation route T-581 between the Missoula and Kalispell navigation beacons in western Montana, giving pilots another route and air traffic control more options.
Who it affects
Pilots flying in western Montana
When
This rule takes effect on October 29, 2026.
- : Published in the Federal Register
- : This rule takes effect
Official text
FR Doc. 2026-15675: Establishment of United States Area Navigation Route T-581 in the Vicinity of Missoula, Montana
On Federal Register. The official text is what counts; read it before you act.
Not legal advice. Plain-English summaries to help you find what changes and when. Not legal advice: read the official text, and ask a lawyer about your situation.