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General charts & Coastal charts
General charts
The scale is usually 1:500 000. The charts are used for planning and navigation in open seas. They are numbered with one digit.
Coastal charts
The scale is usually 1:200 000. The charts are used for navigation in coastal waters. They are numbered with two digits.
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Archipelago charts & Special charts
Archipelago charts
The scale is usually 1:50 000. The charts are used for inshore- and coastal navigation. They are numbered with three digits.
Special- and harbour charts
The scale is usually 1:25 000. The charts cover areas of heavy traffic, certain habour and approaches. They are numbered with four digits.
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