Which COLREGS Rule pertains to narrow channels and required safe passing?

• A. Rule 15 – Crossing Situations
• B. Rule 9 – Narrow Channels
• C. Rule 13 – Overtaking
• D. Rule 5 – Lookout

Answer: (B)

Navigating narrow channels requires clear guidance on how to position and pass other vessels safely in tight spaces. The rule that covers this situation directs vessels to keep as close as practicable to the starboard side of the channel and to proceed with caution so that safe passing is possible when another vessel is in the vicinity. This helps prevent blockages and collisions when there isn’t room for two vessels to pass side by side, especially around bends or constrictions.

The other options address different aspects of COLREGS: crossing situations, overtaking, and maintaining a lookout, which are not specifically about narrow channels and safe passing. So the rule that directly addresses narrow channels and safe passing is the one described here.