r/TheDeepDraft

A watchkeeper can hold valid ECDIS certificates and still face an unfamiliar system at the moment of navigation. That is the gap this article looks at: the difference between documented training and current competence on the system actually installed onboard.

Operationally, this matters because ECDIS is no longer just a chart display. Route checking, safety contours, alarm settings, display layers, software versions and inherited configurations all affect how the officer interacts with the system during a real watch. The certificate may be valid, but the interface logic may still be unfamiliar.

From a Master Mariner’s view, the problem is that the industry can verify certificates, familiarisation forms and inspection records more easily than it can verify real operating familiarity. The ship is protected by the officer’s current ability to use the system in front of them, not by paperwork completed months or years earlier.

Full analysis: https://thedeepdraft.com/2026/05/11/ecdis-certification-is-not-the-same-as-ecdis-competence/

Full Read - VDES and AIS: What Actually Changes on the Bridge