🔍 Key Concepts

• Rule 5 – Look-out (Navigation Rules/COLREGS) • The meaning of "by all available means" in the context of lookout • How conditions like fog, darkness, or traffic affect, but do not define, the lookout requirement

💭 Think About

• Is the obligation to keep a lookout limited to certain situations, or is it a general, continuous duty whenever a vessel is underway or even at anchor in some cases? • Do the Navigation Rules say that lookouts are required only in specific conditions (like fog or night), or do those conditions simply require extra care? • Think about collision-prevention: would restricting lookouts to just some times of day or weather conditions be consistent with the purpose of Rule 5?

✅ Before You Answer

• Check the exact wording of Rule 5 – Look-out in the Navigation Rules: does it mention "at all times" or restrict the requirement to certain conditions? • Verify whether Rule 5 ties lookout duties only to fog, port approaches, or night operations, or if it applies more broadly. • Confirm that a proper lookout must use sight, hearing, and all available means appropriate in the prevailing circumstances and conditions.