Electronic chart display and information system

ECDIS, the navigation system that displays official electronic navigational charts (ENCs) integrated with position, radar, and AIS, and that SOLAS Chapter V mandates for most cargo and passenger ships under a phased rollout completed in 2018. A type-approved ECDIS with up-to-date ENCs and an approved backup satisfies the chart-carriage requirement, and the passage plan is built and monitored on it. Improper ECDIS use, with safety settings wrong or alarms muted, recurs in grounding reports.