1.1 The primary function of the ECDIS is to contribute
to safe navigation.
1.2 ECDIS with adequate back-up arrangements may
be accepted as complying with the up-to-date charts required by regulations V/19 and V/27 of the 1974 SOLAS Convention, as
amended.
1.3 ECDIS should be capable of displaying all
chart information necessary for safe and efficient navigation originated
by, and distributed on the authority of, government authorized hydrographic
offices.
1.4 ECDIS should facilitate simple and reliable
updating of the electronic navigational chart.
1.5 ECDIS should reduce the navigational workload
compared to using the paper chart. It should enable the mariner to
execute in a convenient and timely manner all route planning, route
monitoring and positioning currently performed on paper charts. It
should be capable of continuously plotting the ship's position.
1.6 The ECDIS display may also be used for the
display of radar, radar tracked target information, AIS and other
appropriate data layers to assist in route monitoring.
1.7 ECDIS should have at least the same reliability
and availability of presentation as the paper chart published by government
authorized hydrographic offices.
1.8 ECDIS should provide appropriate alarms or
indications with respect to the information displayed or malfunction
of the equipment (see appendix
5).
1.9 When the relevant chart information is not
available in the appropriate form (see section 4), some ECDIS equipment
may operate in the Raster Chart Display System (RCDS) mode as defined
in appendix 7. RCDS mode
of operation should conform to performance standards not inferior
to those set out in appendix 7.