220.127.116.11 Communication between a shore-based authority and a participating ship should be limited
to information essential to achieve the objectives of the system and, unless there is an emergency
involving the safety of life at sea or a threat to the marine environment, the information should
not be used for any other purpose.
18.104.22.168 The communication system should enable the shore-based authority and the participating
ship to exchange information. The communication should be clear and simple and avoid imposing
an undue burden on masters, officers of the watch and pilots. The language used should enable the
shore-based authority and the participating ship to understand each other clearly. Where language
difficulties exist and in particular where requested by master or the shore-based authority, a
mutually agreed upon language or English, using the Standard Marine Communication Phrases*,
should be used.
22.214.171.124 The initial report required from a ship entering the system should generally be limited to
the ship's name, call sign, IMO identification number if applicable, and position.
126.96.36.199 Other supplementary information may also be requested in the initial report if justified in
the proposal for adoption as necessary to ensure the effective operation of the system. Such
supplementary information required may include, for example, the intended movement of the ship
through the area covered by the system, any operational defects of difficulties affecting the ship,
and, as set forth in 1.4 above, the general categories of any hazardous cargoes on board.
188.8.131.52 In the case of an emergency or threat to the marine environment, the shore-based authority
may request that the participating ship provide as soon as practicable the precise details of any
hazardous cargoes, including their location on board the ship.
184.108.40.206 The system should be planned to transmit information quickly and securely in the most effective way.
2.2.2 Technical considerations
220.127.116.11 The reliability of communications and the availability of communication frequencies should
be assured. Shore-based authorities should remain alert to the development of modern, non-verbal
methods of data transfer which may reduce language difficulties and that have great potential for
reducing ship's reporting burden.
18.104.22.168 Careful attention should be given to the format and structure of the message and the mode
of transmission. Communication should be conducted in conformity with resolution A.648(16) on
ship reporting, taking into account any other relevant guidelines, criteria, regulations or instruments
developed by the Organization.
*Standard marine communication phrases are under development by the Organization and will consist of an
expanded "IMO Standard Marine Navigational Vocabulary" and "Seaspeak".