If the electronic chart is part of an ECDIS,...

🔍 Key Concepts

• ECDIS (Electronic Chart Display and Information System) performance standards in IMO SOLAS and IEC/IMO references • The definition of minimum chart content for safe navigation (what you must always see) • Difference between static chart information (always on the chart) and dynamic / calculated information (comes from other sources or overlays)

💭 Think About

• Think about which items are essential fixed elements of a nautical chart that you must always be able to see for safe navigation. • Consider which choice represents information that may come from separate tidal/current publications or predictions, not necessarily as part of the base chart data. • Ask yourself: which three items are clearly part of traditional paper chart content, and which one is more of an environmental or time‑varying factor?

✅ Before You Answer

• Identify which options clearly belong to standard paper chart content (look at an official paper chart and note what is printed there permanently). • Ask: which of these is time‑dependent or predicted rather than a fixed feature on the seabed or coastline? • Verify which items IMO/IHO treat as mandatory chart features versus information that can be provided by separate publications or overlays.

If the electronic chart is part of an ECDIS, it must display the minimum data required by IMO/IHO. Which is NOT required to be displayed?

Aids to navigation

Regulatory boundaries

Hydrography

Tidal currents

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🔍 Key Concepts

💭 Think About

✅ Before You Answer