Question 2 ONC03 - Master LT 500-1600 GRT

The Correct Answer is A **Explanation for Option A (flashing blue light):** Inland rules (specifically, 33 CFR 88.11, concerning Inland waters) permit a police vessel, or any other authorized federal, state, or local law enforcement vessel, to display a **flashing blue light** when engaged in direct law enforcement activities. This light signifies the vessel is a law enforcement patrol and is used to signal other vessels to stop, slow down, or yield, similar to a police car's lights on the highway. **Explanation for Incorrect Options:** * **B) flashing amber light (or yellow light):** A flashing amber light is typically used by vessels engaged in special operations, such as towing, pushing barges, or dredging, to indicate restricted maneuverability or special circumstances. It is not the designated law enforcement signal. * **C) blue flag:** Flags are primarily used for signaling (e.g., the International Code of Signals) or distinguishing nationality. A blue flag does not serve as a standard, legally recognized navigational signal for a law enforcement vessel under the Inland Navigational Rules. * **D) flashing red light:** Flashing red lights are generally reserved for highly specific distress situations, safety-related equipment (like fire fighting monitors), or occasionally for submarine warnings. They are not the designated color for routine law enforcement signaling on the water. (Steady red is a standard sidelight color).