Action
Final rule.
Summary
This action modifies the Class E airspace designated as a surface area and modifies the Class E airspace extending upward from 700 feet above the surface at Ralph M. Calhoun Memorial Airport, Tanana, AK. Additionally, this action updates the administrative portion of the airport's Class E airspace legal descriptions. These modifications support the safety and management of instrument flight rules (IFR) operations at the airport.