Circular
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Statutory Documents - IMO Publications and Documents - Circulars - Safety of Navigation - Circular SN.1/Circ.243/Rev.2 – Guidelines for the Presentation of Navigational-Related Symbols, Terms and Abbreviations – (14 June 2019) - Circular

Circular

 SN.1/Circ 243/Rev.2 applies to:

1) Radar equipment, ECDIS & INS installed on or after 1 Jan 2024

2) all other navigation display equipment installed on or after 1 July 2025

  1 The Maritime Safety Committee, at its ninety-third session (14 to 23 May 2014), approved the Amended Guidelines for the presentation of navigational-related symbols, terms and abbreviations (SN/Circ.243/Rev.1) prepared by the Sub-Committee on Safety of Navigation (NAV) at its fifty-ninth session (2 to 6 September 2013) and encouraged their use for all shipborne navigational systems and equipment.

2 The Sub-Committee on Navigation, Communications and Search and Rescue (NCSR), at its sixth session (16 to 25 January 2019), with a view to harmonizing the requirements for the presentation of navigation-related information on the bridge which would ensure that all navigational displays adopt a consistent human-machine interface philosophy and implementation, agreed to revised Guidelines for the presentation of navigation-related symbols, terms and abbreviations.

3 The Maritime Safety Committee, at its 101st session (5 to 14 June 2019), concurred with the Sub-Committee's views, and approved the revised Guidelines for the presentation of navigation-related symbols and the revised Guidelines for the presentation of navigation-related terms and abbreviations, as set out in annexes 1 and 2, respectively.

4 This circular does not revoke SN/Circ.243/Rev.1, however, for the purpose of applying resolutions:

  • .1 MSC.191(79), the Guidelines in SN/Circ.243/Rev.1 are to be applied to:

    • .1 radar equipment, electronic chart display and information systems (ECDIS) and integrated navigation systems (INS) installed before 1 January 2024; and

    • .2 all other navigational displays on the bridge of a ship installed before 1 July 2025; and

  • .2 MSC.191(79), as amended by resolution MSC.466(101), the Guidelines in SN.1/Circ.243/Rev.2 are to be applied to equipment installed on or after the dates specified in paragraph 4.1 above.

5 Member States are invited to bring the revised Guidelines to the attention of all parties concerned.

Parent topic: Circular SN.1/Circ.243/Rev.2 – Guidelines for the Presentation of Navigational-Related Symbols, Terms and Abbreviations – (14 June 2019)
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