This action proposes to establish Class E airspace extending upward from 700 and 1,200 feet above the surface, at Twin Bridges Airport, Twin Bridges, MT, to accommodate new area navigation (RNAV) procedures at the airport. This action would ensure the safety and management of Instrument Flight Rules (IFR) operations within the National Airspace System.
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Proposed Establishment of Class E Airspace; Twin Bridges, MT
This action proposes to establish Class E airspace extending upward from 700 and 1,200 feet above the surface, at Twin Bridges Airport, Twin Bridges, MT, to accommodate new area...
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82 FR 40740
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“Proposed Establishment of Class E Airspace; Twin Bridges, MT,” thefederalregister.org (August 28, 2017), https://thefederalregister.org/documents/2017-17988/proposed-establishment-of-class-e-airspace-twin-bridges-mt.