Chart 1 : Symbols, Abbreviations and Terms

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Buoys, Beacons - Section Q

Special Purpose Buoys

Ref. IHO Symbology Description CHS Symbology
Note: Shapes of buoys are variable. Lateral or cardinal buoys may be used in some situations. The use of the cross topmark is optional.
50 Firing danger area (Danger Zone) buoy
51 Target
52 Marker ship
53 Barge
54 Degaussing range buoy
55 Cable buoy
56 Spoil ground buoy
57 Buoy marking outfall
58 ODAS buoy (Ocean Data Acquisition System), data collection buoy
60 Seaplane anchorage buoy
61 Buoy marking traffic separation scheme
62 Buoy marking recreation zone
63 Emergency wreck marking buoy
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