AVIATION (PROPOSED CANCELATION OF NDB AND VHF-VOR CAPABILITIES) / Notice of Proposed Policy and Request for Comment – “The FAA [Federal Aviation Administration] is considering the cancellation of certain Non-directional Beacon (NDB) and Very High Frequency (VHF) Omnidirectional Radio Range (VOR) instrument approach procedures (IAP) at airports that have multiple instrument approach procedures. The FAA proposes specific criteria to guide the identification and selection of appropriate NDB and VOR instrument approach procedures that can be considered for cancellation. The VOR IAPs associated with this cancellation initiative would be selected from the criteria outlined below. This Notice is not a part of the FAA’s VOR minimum operating network (MON) initiative.”

FAA’s reasoning: “As, new technology facilitates the introduction of area navigation (RNAV) instrument approach procedures over the past decade, the number of procedures available in the National Airspace System has nearly doubled. The complexity and cost to the Federal Aviation Administration (FAA) of maintaining the existing ground based navigational infrastructure while expanding the new RNAV capability is not sustainable.”

“Proposed Policy for Discontinuance of Certain Instrument Approach Procedures” 

August 2, 2013. Notice Of Proposed Policy And Request For Comment