Final rule · 2025-08295

Modification of Class E Airspace; Colusa County Airport, Colusa, CA

This action modifies the Class E airspace extending upward from 700 feet above the surface of the earth and removes the Class E airspace extending upward from 1,200 feet above the surface at Colusa County Airport, Colusa, CA. Additionally, this action proposes administrative amendments to update the airport's Class E airspace legal description. These actions will support the safety and management of instrument flight rules (IFR) operations at the airport.