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USCG Exam PracticeAids to Navigation — IALA-B (US) buoyage

In the IALA-B system, which numbering convention applies to green starboard-hand lateral aids?

  1. A. Even numbers
  2. Odd numbersCorrect
  3. C. No numbers; green aids use only letters
  4. D. Numbers above 100 only

Why B is correct

In IALA-B, even numbers are assigned to red (port-hand) aids and odd numbers to green (starboard-hand) aids. Numbers increase from seaward toward the head of navigation.

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In the IALA-B system, which numbering convention applies to green s… — USCG Exam Practice · CaptainsGround