BOTH INTERNATIONAL & INLAND A vessel towing in fog shall sound a fog signal of __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — one prolonged and two short blasts every two minutes
Under Inland Rule 34(a), two short blasts indicates 'I intend to leave you on my starboard side' (starboard-to-starboard pass), requiring an identical two short blasts confirmation.
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