USCG Exam Practice · Rule 9 — Narrow Channels
According to the Inland Navigation Rules, a vessel proceeding along the course of a narrow channel shall keep as near to which side of the channel as is safe and practicable?
- AThe port side of the channel
- BThe center of the channel
- CThe outer limit of the channel on her starboard side✓ correct
- DThe outer limit of the channel on her port side
Why C is correct
Inland Rule 9(a)(i) requires a vessel proceeding along a narrow channel or fairway to keep as near to the outer limit of the channel which lies on her starboard side as is safe and practicable. This mirrors the keep-right principle applicable to channel navigation.
Cited:33 CFR §83.09
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