USCG Exam PracticeRule 9 — Narrow Channels
Under the Inland Navigation Rules, which vessels are specifically prohibited from impeding the passage of a vessel that can safely navigate only within a narrow channel?
- A. Vessels not under command and vessels restricted in their ability to maneuver
- B. All vessels regardless of type or length
- ✓ Vessels of less than 20 meters in length and sailing vesselsCorrect
- D. Power-driven vessels of less than 20 meters in length only
Why C is correct
Inland Rule 9(b) specifically names vessels of less than 20 meters in length and sailing vessels as those that shall not impede the passage of a vessel that can safely navigate only within a narrow channel or fairway. Vessels engaged in fishing have a separate, broader obligation under Rule 9(c).
Cited:33 CFR §83.09(b)