🔍 Key Concepts

• Rule 30 - Anchored Vessels and Vessels Aground in the Navigation Rules • The special light signal for a vessel engaged in pilotage duty (pilot vessel) • How lights for the status of the vessel (anchored) combine with lights for the duty of the vessel (pilotage)

💭 Think About

• First, recall what lights a pilot vessel normally shows at night when engaged on pilotage duty and making way or at anchor. • Next, recall what lights any anchored vessel must show at night under Rule 30. • Then, decide whether a vessel that is BOTH a pilot vessel AND at anchor must show one set of lights, the other, or a combination of both.

✅ Before You Answer

• Verify the exact color and vertical order of the pilot vessel’s identification lights. • Check whether anchor lights are still required when a vessel has a special duty (such as pilotage). • Confirm that a stern light is or is not part of the required light configuration for an anchored vessel.