🔍 Key Concepts

• Rule 18 – Responsibilities Between Vessels (International Rules) • The hierarchy between vessel not under command (NUC), restricted in ability to maneuver (RAM), constrained by draft (CBD), and fishing vessels • The meaning of "shall keep out of the way of" versus "shall not impede"

💭 Think About

• First, mentally list the priority order of vessel types in Rule 18 (from most restricted to least). Where do NUC, RAM, CBD, and fishing fit in that order? • Look at each option and ask: does this statement correctly reflect who must keep clear of whom according to that hierarchy, especially under International Rules? • Pay close attention to how the Rules treat vessels constrained by their draft compared to fishing vessels and whether NUC vessels are ever required to maneuver to keep out of the way of others.

✅ Before You Answer

• Verify in Rule 18 (International) exactly which vessels must keep out of the way of which other vessels. • Check whether a vessel not under command (NUC) is expected to take avoiding action or if others must keep clear of her. • Confirm how the Rules describe the relationship between a vessel constrained by her draft and a vessel engaged in fishing.