The phrases are divided into part A and part B. Part A covers phrases to be applied according to the requirements of Table A-II/1 (minimum competence of officers in charge of a navigational watch on ships of 500 gross tonnage) of the STCW Code, and may thus be regarded as the replacement of the Standard Marine Navigational Vocabulary, 1985. This part is enriched by essential phrases concerning ship handling and safety of navigation to be used in on-board communications. Part B calls attention to other on-board standard safety-related phrases which, supplementary to part A, may also be regarded as useful for maritime English instruction.
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