Another question lists the aircraft that are exempt from the EASA CPDLC rule.

Is there a similar exemption for aircraft operating in the North Atlantic?

  • $\begingroup$ I think there is no exemption possible. But not all tracks and levels are covered by the NAT CPDLC rules. $\endgroup$
    – DeltaLima
    Feb 25, 2014 at 16:24
  • $\begingroup$ @DeltaLima Not all tracks yet, but next year they will be and all NAT airspace in 2017. $\endgroup$
    – Lnafziger
    Feb 25, 2014 at 17:07
  • 1
    $\begingroup$ Looks like it indeed. You'll have to fly below FL350 or above FL390. Climbing through the FL350-390 block seems to be possible for unequipped aircraft. $\endgroup$
    – DeltaLima
    Feb 25, 2014 at 17:18
  • $\begingroup$ Or fly through the ADS-B corridor from Canada to Iceland. There is no datalink mandate in surveillance airspace apparently. $\endgroup$
    – DeltaLima
    Feb 25, 2014 at 17:21

1 Answer 1


There will be no exemptions for the CPDLC rule in the North Atlantic Track area.

The Datalink Mandate will be implemented:

  • starting 5 February 2015: FL350 to FL390 (inclusive) on all tracks within the NAT Organized Track System (OTS)

  • starting 7 December 2017: FL350 to FL390 (inclusive) throughout the ICAO NAT region.

  • starting 30 January 2020: FL290 and above throughout the ICAO NAT region.

ATS Surveillance Airspace, airspace north of 80°N and the New York FIR are excluded from the mandate. This means that aircraft equipped with a suitable transponder / ADS-B transmitter will be able to cross using the Canada - Greenland - Iceland ADS-B corridor without having to carry FANS 1/A equipment.

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