Rules of the Road · Pilot Vessels
By day, a pilot vessel on pilotage duty shall display:
- AA flag 'H' (Hotel) of the International Code of Signals✓ Correct
- BA black pilot flag at the masthead
- CA white cone, apex downward
- DA yellow flag
Explanation
Rule 29(b) requires a pilot vessel on duty by day to exhibit the flag 'H' (Hotel) — the white-and-red vertically divided flag of the International Code of Signals. This is the day signal for 'I have a pilot on board' used as the identifier for pilot vessels.
Authority: 72 COLREGS Rule 29(b)
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