| NOS | NIMA | |
IHO/Foreign NIMA Charts |
|---|---|---|---|
| Firing danger area (Danger Zone) buoy |
 |
||
| Target |
 |
||
| Marker Ship |
 |
||
| Barge |
 |
||
| Degaussing Range buoy |
 |
||
 |
Cable buoy |
 |
|
 |
Spoil ground buoy |
 |
|
 |
Buoy marking outfall |
 |
|
 |
ODAS (Ocean Data Acquisition System) buoy; Data-collecting buoy of superbuoy size |
 |
|
 |
Special purpose buoys | ||
| Wave recorder, current meter |
 |
||
 |
Seaplane anchorage buoy | ||
| Buoy marking recreation zone |
 |
||
| Seasonal Buoys | |||
 |
Buoy privately maintained (example) |
 |
|
| Seasonal buoy (example) |
 |
||