Navigation General · Lateral Buoyage
Lateral buoy numbers in U.S. waters increase in which direction?
- AFrom sea toward the head of navigation✓ Correct
- BFrom the head of navigation toward the sea
- CFrom south to north regardless of channel direction
- DFrom east to west along the coastline
Explanation
Buoy numbers increase from seaward toward the head of navigation (harbor, river mouth, etc.). Even numbers are on the right (starboard/red) side going in.
Authority: 33 CFR 62 (U.S. ATON System)
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