DOVER COASTGUARD can interrogate ships fitted with transponders
to gain information on their identity and position. This information
is displayed as an icon on an electronic charting package covering
the CNIS area.
Similar facilities to those at DOVER COASTGUARD are also
available at GRIS NEZ TRAFFIC. The two centres act in partnership
in the operation of the CNIS. GRIS NEZ TRAFFIC specifically has the
following facilities.