Rules of the Road · Narrow Channels & TSS
When overtaking is possible only if the vessel to be overtaken takes action to permit safe passing in a narrow channel, Rule 9(e) requires:
- AThe overtaking vessel to wait until the channel widens before overtaking
- BThe vessel to be overtaken to automatically give way if the overtaking vessel sounds two prolonged blasts
- CThe overtaking vessel to indicate intent with the appropriate signal and obtain agreement before proceeding✓ Correct
- DThe overtaking vessel to use VHF channel 16 to obtain permission from port control
Explanation
Rule 9(e) establishes a two-step process: the overtaking vessel signals intent (two prolonged plus one short for starboard, or two prolonged plus two short for port), and the overtaken vessel signals agreement with one prolonged, one short, one prolonged, one short. If agreement is not obtained, the overtake shall not proceed.
Authority: 72 COLREGS Rule 9(e)
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