🔍 Key Concepts

• Coordinator Surface Search (CSS) duties and role in a Search and Rescue (SAR) operation • Nighttime identification lights for special roles under the Navigation Rules/IMO SAR conventions • Difference between ordinary deck/working lights and formal light signals with prescribed colors and arrangements

💭 Think About

• Which of these options sounds like an officially prescribed light signal rather than something a single vessel might invent? • Is the CSS acting in a special coordinating role similar to a command or control unit, and if so, would that usually have a unique light configuration to be recognized by other SAR units? • Look at which choices use a specific color pattern and vertical arrangement that could be seen from a distance and clearly distinguished from normal navigation lights.

✅ Before You Answer

• Verify which choice reflects a standardized, published light pattern, not something created ad hoc by the CSS. • Distinguish between work/illumination lights (for seeing the deck/area) and identification lights (for telling others what role the vessel is playing). • Ask: Which combination of lights would be most easily recognized and least likely to be confused with ordinary navigation or deck lights?