COLREGs Rule 20 – Lights and Shapes Explained | When, Why & How to Display Navigation Lights

Описание: Welcome back to the Cruise Ship Safety and Security channel! In this episode of COLREGs Made Simple, we kick off the Lights and Shapes section with Rule 20: Application—your gateway to understanding when and why vessels display navigation lights and day shapes.

📌 This foundational rule tells us exactly:

When navigation lights must be shown (sunset to sunrise)
When day shapes apply (during daylight only)
Why certain lights must not interfere with lookout duties
How restricted visibility changes light requirements—even during the day
Why all lights and shapes must follow Annex I placement standards
🛥️ Whether you're navigating on a yacht, cruise ship, ferry, or container vessel—getting this wrong can lead to collisions or legal trouble. Understanding Rule 20 is essential before diving into the specific rules for masthead lights, sidelights, stern lights, and more.

🎓 Perfect for:

Maritime students, cadets, and officers preparing for COLREGs exams
Sailors, skippers, and watchkeepers on vessels of all sizes
Yachtmasters and leisure craft operators working toward RYA or STCW qualifications

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