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Notice of proposed rulemaking (NPRM).
This action proposes to modify 4 VHF Omnidirectional Range (VOR) Federal Airways, (V-7, V-9, V-106, and V-214); and remove 7 VOR Federal Airways, (V-58, V-130, V-149, V-379, V-445, V-451, and V-479) in support of the FAA's VOR Minimum Operation Network (MON) project.