BOTH INTERNATIONAL & INLAND Which vessel...

🔍 Key Concepts

• Navigation Rules – Lights and Shapes (Part C), especially the definition of underway vs. making way • Which vessels must show sidelights and sternlight any time they are underway, even if stopped in the water • Special light configurations for vessels not under command, restricted in their ability to maneuver, and fishing vessels

💭 Think About

• First, decide which vessel types are treated as power-driven underway for running lights, and which have special lights that may replace or modify normal running lights • Think about what changes (if anything) when a vessel is underway but stopped: which lights must remain on, and which lights may be extinguished? • Compare each option: which of these vessel types still shows normal sidelights in addition to any special lights when underway and not making way?

✅ Before You Answer

• Verify the definition of underway in the Navigation Rules (not at anchor, aground, or made fast to the shore) • Check for each vessel type whether its special lights replace or supplement normal sidelights when underway • Confirm which vessel type’s rules clearly state that sidelights remain on whenever it is underway, regardless of making way

BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?

A vessel engaged in fishing

A power-driven vessel

A vessel engaged in dredging

A vessel not under command

🔍 Key Concepts

💭 Think About

✅ Before You Answer