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SAR vessels and aircraft in locating people in distress, the specification
          (IEC 61097-14 Ed 1.0) for an AIS-based SAR transmitter (AIS-SART)
          was developed by the IEC's TC80 AIS work group. AIS-SART was added
          to Global Maritime Distress Safety System regulations effective January
          1, 2010. [14]  AIS-SARTs have been available on the market since at least
          2009. [15] Recent  regulations  have  mandated  the  installation  of  AIS
          systems on all Safety Of Life At Sea (SOLAS) vessels and vessels over
          300 tons. [16]
          Accident investigation
          AIS information received by VTS is important for accident investigation
          since it provides accurate historical data on time, identity,  GPS-based
          position,  compass  heading,  course  over ground,  speed  (by  log/SOG),
          and rates of turn, rather than the less accurate information provided by
          radar.  A  more  complete  picture  of  the  events  could  be  obtained
          by Voyage  Data  Recorder (VDR)  data  if  available  and  maintained  on
          board for details of the movement of the ship, voice communication and
          radar  pictures  during  the  accidents.  However,  VDR  data  are  not
          maintained due to the limited twelve hours storage by IMO requirement.
          Fleet and cargo tracking
          Internet disseminated AIS can be used by fleet or ship managers to keep
          track  of  the  global  location  of  their  ships.  Cargo  dispatchers,  or  the
          owners of goods in transit can track the progress of cargo and anticipate
          arrival times in port.


































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