NAV CANADA, the country's provider of civil air navigation services, conducted an aeronautical study that reviewed the requirement for Non-Directional Beacons (NDBs) and Very-High Frequency Omnidirectional Rangefinders (VORs).
The study concluded that given the comprehensive radar surveillance coverage, and the propensity of area navigation (RNAV) with GNSS equipped aircraft, many navigation aids (NAVAIDs) are no longer required and should be decommissioned. The following instrument approach procedures were assessed, and it was determined that they can be revoked prior to the associated NAVAID decommission without reducing airport access.
This change will take effect March 26, 2020 at 0901 Coordinated Universal Time (UTC). The appropriate aeronautical publications will be amended.