Which COLREGS rule requires a proper look-out at all times?

• A. Rule 14 Look-out.
• B. Rule 7 Safe Speed.
• C. Rule 5 Look-out.
• D. Rule 9 Overtaking.

Answer: (C)

Maintaining a proper look-out at all times is the fundamental duty for safe navigation and collision avoidance. The rule requires every vessel to keep a proper look-out by sight and hearing and by all available means appropriate to the circumstances, so you can make a full appraisal of the situation and the risk of collision. This obligation is continuous and applies regardless of weather, traffic, or vessel type, because it creates the awareness needed to apply all the other navigation rules. In practice, this means watching 360 degrees, listening for approaching engines, and using tools like radar, AIS, and binoculars to detect other vessels and hazards early. While other rules dictate actions in specific situations (such as safe speed, overtaking, or crossing), the look-out rule provides the ongoing awareness that makes those actions possible.