Chart 1 : Symbols, Abbreviations and Terms

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Areas, Limits - Section N

SNS a

Restricted Areas

Ref. IHO Symbology Description CHS Symbology
20 Anchoring prohibited
21 Fishing prohibited
22 Environmentally Sensitive Sea Areas (ESSA):

Non-specific nature reserve, National parks, Marine reserves (MR)
Bird sanctuary
Seal sanctuary
Particularly Sensitive Sea Area (PSSA)
Note: Other animal silhouettes (e.g. seahorse, penguin, petrel) may be used appropriately.
23.1a Explosives dumping ground
23.1b Dumped individual mines or explosives
23.2 Explosives dumping ground (disused)
24 Dumping ground for chemical waste
25 Degaussing (DG/DM)
26
27 Maximum Speed
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