
For our purpose in this book we shall class the maritime surveillance systems into two categories; civilian surveillance systems and military systems. We shall call the former Vessel Traffic System (VTS) or more fully Vessel Traffic Management and Information Systems (VTMIS) [2.7]. The International Association of Lighthouse Authorities (IALA) promulgate guidance and assistance to Administrations and Authorities considering the implementation of a new VTS, or the upgrading of an existing one.
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