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A reference guide for everyone whose work demands an up-to-date knowledge of the law of the sea, including lawyers, shipowners, ships' masters, maritime organizations, insurance companies, harbour masters and surveyors. This new version takes account of the Merchant Shipping (Distress Signals and Prevention of Collisions) regulations 1989, including a new amendment which came into force on the 19th April 1991, the Merchant Shipping Act 1988 and the many related statutory instruments which have amended the legislation recently.