Key:seamark:buoy_lateral:system
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 seamark:buoy_lateral:system
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| Description |
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Lateral system. 
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| Group: marine navigation |
| Used on these elements |
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| Status: de facto |
| Tools for this tag |
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There are two international buoyage regions, A and B, between which lateral marks differ. The buoyage region is encoded using the separate attribute "system" (MARSYS). Lateral buoys generally have distinctive shapes (can for port-hand, conical for starboard-hand) or may be a pillar or spar with distinctive topmarks. The buoys and their topmarks are always painted in red, green or red & green horizontal bands.
- Region A
- comprises Europe, Africa, and most of Asia and Oceania, as well as Greenland.
- port marks are red and may have a red flashing light of any rhythm except 2+1.
- starboard marks are green and may have a green flashing light of any rhythm except 2+1.
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| (Port) (Left) (Red) | (Starboard) (Right) (Green) |
- Region B
- comprises the Americas, Japan, South Korea, the Philippines, Taiwan, Hawaii, and Easter Island.
- port marks are green and may have a green flashing light of any rhythm except 2+1
- starboard marks are red and may have a red flashing light of any rhythm except 2+1
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| (Port) (Left) (Green) | (Starboard) (Right) (Red) |
