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Practical guides to the COLREGS, buoyage, lights and shapes, and exam prep - written to be useful at the chart table, not just in the classroom.

COLREGS rulesOvertakingExam prepSeamanshipNavigation lights
Rule 13 Overtaking: The Rule That Overrides All Others
Rule 13 makes every overtaking vessel give-way, full stop. Here's how to identify an overtaking situation, apply the stern-light test, and know when you're finally clear.

COLREGS rulesSailing vesselsExam prepSeamanshipNavigation lights
Rule 12 Explained: Which Sailing Vessel Gives Way?
Port tack, starboard tack, windward boat - Rule 12 ranks them all. Here's how to apply the hierarchy confidently at sea and in exams.