Green lights may appear on __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — horizontally banded buoys
Horizontally banded buoys indicate preferred channels. In the IALA-B system, these buoys are colored red and green. If the top band is green, the buoy will display a green light. Spherical, yellow, and vertically striped buoys do not utilize green lights for channel marking purposes.
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