Which of the following best defines 'engaged in fishing' under the Rules?

• A. Using fishing apparatus which restricts maneuverability
• B. Using fishing apparatus that restricts maneuverability
• C. A vessel transferring cargo
• D. A vessel underway

Answer: (B)

Engaged in fishing means a vessel is actively using fishing gear that restricts its ability to maneuver. That restriction is the defining factor—if the gear you’re using would hinder turning, speed, or steering, the vessel is considered to be engaged in fishing, and it faces the corresponding navigational rules.

The phrasing that uses “that restricts maneuverability” clearly pinpoints the essential attribute: the gear itself must limit maneuverability to qualify. The alternative wording with “which” is grammatically passive in this context and doesn’t convey the necessary restrictive meaning as cleanly for a legal/operational definition. The other choices describe actions or states unrelated to being engaged in fishing (transferring cargo or simply underway), so they don’t define the term.

So, the best definition is the one stating you are using fishing apparatus that restricts maneuverability.