This is the most dangerous part of the update. If you are flying the old (un-updated) chart, your communication failure procedure may tell you to hold in a stack that no longer exists. The UPD version reroutes the missed approach hold to a new waypoint (e.g., from the old NDB to a GPS coordinate like VAN52 ).

Clarifications on handling IFR clearances, particularly in North Atlantic (NAT) airspace. 3. Key Changes in Recent Jeppesen Canada ATC Updates

and missed approach procedures for aircraft on IFR flight plans. ADS-B Requirements

Background

For Canada, these variations track specific mandates issued by Transport Canada and executed by NAV CANADA , the nation's civil air navigation services provider. Paragraph 76 explicitly details procedural updates regarding radar environments, communications, and data-link mandates. Because Canadian domestic airspace is heavily divided into specialized control zones—ranging from the Southern Domestic Airspace to complex high-level tracking corridors—even minor text updates in Paragraph 76 can reshape a flight crew’s workflow. 2. Core Functional Pillars Linked to Paragraph 76

: Canada has fully implemented its ADS-B mandate for Class A (FL180-FL600) and Class B (FL125-FL180) airspace, requiring specific equipage identification in ICAO flight plans. Traffic Circuit Updates Transport Canada AIM 2026-1

To understand the Jeppesen text, you must look at the underlying Canadian rule. The regulation divides flight plan changes into two categories based on flight rules: 1. Instrument Flight Rules (IFR)

Key Changes in the UPD

Departure Clearances (PDC): Clarification on the validity period of a Pre-Departure Clearance and the necessity of verifying the current ATIS code before taxi.

Immediately set your transponder to Code 7600 to alert ATC of the failure. VMC vs. IMC: