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External Liaisons
Inter-Governmental Organizations and Non-Governmental Organizations are recognized as observers to be invited to meetings of the Assembly and all subsidiary organs and subordinate bodies of the IHO in which they have an interest and to which they can make a contribution. The IHO maintains a substantive number of Memoranda of Understanding and Co-operative Agreements with relevant organizations active in the maritime domain.
Become a Member State
How to join the IHO to become a member state?
Smart Navigation Moves Closer to Reality: Completion of Phase 1 of the S-100 Implementation
With the operational release of standards S-124 Navigational Warnings and S-128 Catalogue of Nautical Products, Phase 1 of S-100 Standards implementation has now been completed, marking a major step in the modernisation of navigation. Products and services using these specifications can be updated in near real-time, directly supporting the enhancement of navigational safety and facilitating on-board data management. Data services conforming to these standards are now ready for production and integration into navigation systems such as the S-100 ECDIS.
Encoding Bulletins
S-57 Edition 3.1 Encoding Bulletins
USCHC47 Meeting (2024)
47th US/Canada Hydrographic Commission (USCHC) Meeting St. John’s NL, Canada. / 30-31 May 2024
SAIHC18 (2022)
SAIHC18 Plenary Maputo/Hybrid-VTC Meeting 9th - 13th May 2022
EO1, EO2, and EO3 Meetings (2020)
LIST OF DOCUMENTS NHC Extra Ordinary Meeting (April 3rd 2020) [Online Meeting - please see below] and NHC64th Meeting (postponed to 2021) - (30 - 31 March 2020, Reykjavik Iceland) Note: NHC64 is being hosted after the NSHC34 (27 - 28 April) at the same venue. T.B.D
63rd Meeting (2019)
LIST OF DOCUMENTS 63rd Meeting (9-11 April in Helsinki, Finland)
MSDIWG14 (2023)
14th MEETING OF THE IHO MARINE SPATIAL DATA INFRASTRUCTURES WORKING GROUP (MSDIWG14) Genoa, Italy (30 January to 3 February 2023) (including joint sessions with the UN Working Group on Marine Geospatial Information and the OGC Marine DWG)
