Amendment of Class E Airspace; Mattoon/Charleston, IL; and Revocation of Class E Airspace; Monticello, IL

This action amends the Class E airspace extending upward from 700 feet above the surface at Coles County Memorial Airport, Mattoon/ Charleston, IL, and removes the Class E airspace extending upward from 700 feet above the surface at Piatt County Airport, Monticello, IL. This action is due to an airspace review caused by the decommissioning of the Mattoon VHF omnidirectional range (VOR) navigation aid, which provided navigation information for the instrument procedures at these airports, as part of the VOR Minimum Operational Network (MON) Program; and the closure of the Piatt County Airport. The geographic coordinates of and the city associated with the Coles County Memorial Airport are also being updated to coincide with the FAA's aeronautical database. Airspace redesign is necessary for the safety and management of instrument flight rules (IFR) operations at Coles County Memorial Airport.