OUPV & 100-Ton Master · Navigation
Approaching a harbor from seaward in U.S. waters at night, you see a flashing green light marking the channel edge. You should keep it on your:
- AStarboard side
- BPort side✓ Correct
- CEither side
- DAstern at all times
Explanation
In IALA Region B (U.S. waters), green lateral marks are kept to port when returning from seaward ('red right returning'). A flashing green light marks a port-hand edge of the channel as you enter.
Authority: Navigation Rules; IALA Region B
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