Rules of the Road · Maneuvering Signals (Intent vs Action)
Under the Inland Rules, the maneuvering signal system is fundamentally different from 72 COLREGS because:
- AInland vessels use light signals instead of sound signals
- BInland signals are signals of INTENT requiring agreement before the maneuver begins✓ Correct
- CInland signals are only used in restricted visibility
- DInland signals require VHF confirmation before use
Explanation
The core distinction: under 72 COLREGS, whistle signals announce an ACTION already under way. Under U.S. Inland Rules, whistle signals are proposals of INTENT — both vessels must exchange matching signals (agree) before executing the maneuver.
Authority: Inland Rule 34(a)
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