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HM Nautical Almanac Office is a small multi-disciplinary group of specialists whose purpose is to provide solutions to astronomical and celestial navigation problems. HMNAO is part of the UK Hydrographic Office .
Vessel traffic management, electronic nautical publications and safety information for owners, operators of ships, yachts, fishing vessels.
Equivalency letters for electronic charts and publications meeting regulation requirements for use on ship's bridge.
MCA official letter recognising Paramount Nautical Ltd's use of Bridge Express v1.15.
Guidance on where marine licensing applies and what the key terms mean.
Information for a letter of initial assessment or college letter, so you can train for an engineer officer certificate of competence (CoC)
Advice for British people on staying safe when travelling abroad by sea, including piracy, armed robbery and security risks in particular regions.
How to find MCA approved training providers for long courses.
How to propose a new survey, what data the UKHO requires for a nautical chart, and how to report safety critical information or errors in our products
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