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Become a Member State

How to join the IHO to become a member state?

Terms and Definitions

Updated on 14 May 2025

UN Ocean Decade Conference

The IHO and the OECD are co-hosting a satellite event during the UN Ocean Decade conference in Barcelona. Entitled "The Seabed Data We Need for the Ocean We Want," this session aims to look at the importance of advancing our understanding of the ocean and fostering increased investment in related activities.

SAIHC19 (2023)

SAIHC19 Plenary 28th -  31 st August 2023/ Mauritius

SAIHC16 (2019)

16th SAIHC Conference (3 to 5 September 2019) and 8th ICCWG Meeting (2 September 2019)      Cape Town, South Africa

S-100WG8 (2023)

8th S-100 Working Group (S-100WG) Meeting  13 - 17 November 2023 / Singapore Meeting link : 09:00 ~17:00 (local time)  

S-100WG6 (2022)

6th S-100 Working Group (S-100WG) Meeting  10 ~ 14 January 2022 / 13:00 - 17:00 (UTC+1, CET) VTC

S-102PT10 (2022)

10th meeting of S-102 Bathymetric Surface Project Team (S-102PT10) Online Meeting  24 - 25 October 2022 (11:00 to 15:00, UTC)

Cartas Circulares 2020