In IALA Region A, which buoy color marks the starboard side of a well-defined channel?

Master the Navigation, Seamanship, and Shiphandling (NSS) – Officer of the Deck (OOD) Phase 2 Exam with engaging flashcards and multiple choice questions, complete with hints and explanations. Prepare comprehensively for your test!

Multiple Choice

In IALA Region A, which buoy color marks the starboard side of a well-defined channel?

In IALA Region A, lateral marks use color to show which side of a channel to keep to. The green buoys mark the starboard-hand side, while red buoys mark the port-hand side. So when approaching a well-defined channel from the sea, you pass green buoys on your right (starboard) and red buoys on your left (port). This is why green buoys indicate the starboard side. (In Region B, the colors are reversed.)

In IALA Region A, lateral marks use color to show which side of a channel to keep to. The green buoys mark the starboard-hand side, while red buoys mark the port-hand side. So when approaching a well-defined channel from the sea, you pass green buoys on your right (starboard) and red buoys on your left (port). This is why green buoys indicate the starboard side. (In Region B, the colors are reversed.)

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