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Weems & Plath continues to set the standard for accuracy and reliability at sea

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COLREGs Pocket Book (Volumes I to IV) fog signals and according Ultra less dominanceCOLREGs Macneils Seamanship Examiner Pocket Book, Third Edition is a four volume Q&A guide to the International Regulations for Preventing Collisions at Sea (IRPCS). Designed for officer level candidates, it provides a structured approach to mastering navigation rules through over 500 self assessment questions supported by colour diagrams and clear explanations. The volumes are suitable for self study or group discussion at OOW, Chief Mate and Master