Circular Letters 2024
| Reference | Title |
| CL47 |
Cumulative List of IHO Circular Letters issued in 2024. |
| CL46 | Nominated candidates to join the Diversity, Equity, and Inclusion Project Team. |
| CL45 |
Category “B” Nautical Cartography Programme Sponsored by the Republic of Korea (16 June 2025 - 31 October 2025). Call for Nominations. |
| CL44 | Announcement of the new IHO Portal |
| CL43 | World Hydrography Day- Report on Member States' activities in 2024 and the proposed theme for 2025. |
| CL42 | Call for candidates to join the Diversity, Equity and Inclusion (DEI) Project Team. |
| CL41 |
Composition of the Strategic Plan Review Working Group (SPRWG). |
| CL40 |
Adoption of IHO Publications: Edition 2.0.0 of S-66 – Facts about Electronic Charts and Carriage requirements, Edition 4.4.0 of S-57 Appendix B.1, Annex A – Use of the Object Catalogue for ENC and Edition 8.0.0 of S-58 – ENC Validation Checks. |
| CL39 | Call for Approval of S-100-Based Product Specifications Phase 1– S-101, S-102, S-104, S-111, S-129 |
| CL38 |
Invitation to participate in the Strategic Plan Review Working Group as established by the 8th Meeting of the IHO Council. |
| CL37 | Former President Rear Admiral Giuseppe Angrisano |
| CL36 | Empowering Women in Hydrography – IBSC Internships -Selection of candidates. |
| CL35 |
Call for the approval of edition 6.2.0 of S-44 - IHO Standards for Hydrographic Surveys |
| CL34 |
Master of Science Programme in Hydrographic Science at the University of Southern Mississippi (USA) sponsored by the Republic of Korea. Call for Nominations (13th Course, August 2025 - August 2026). |
| CL33 |
Empowering Women in Hydrography - IBSC Internships - Call for nominations. |
| CL32 | IHO Project Empowering Women in Hydrography IC-ENC eLearning Creation – Selection. |
| CL31 | FIG/IHO/ICA International Board on Standards of Competence for Hydrographic Surveyors and Nautical Cartographers (IBSC) - Update of the Standards. |
| CL30 |
Call for the approval of Edition 2.0.0 of S-66 – Facts about Electronic Charts and Carriage requirements, Edition 4.4.0 of S-57 Appendix B.1, Annex A – Use of the Object Catalogue for ENC and Edition 8.0.0 of S-58 – ENC Validation Checks. |
| CL29 |
The Ex Abyssis ad Alta – IHO Award for Hydrographic Excellence - 2024 Recipient |
| CL28 | Increasing participation in activities of IHO bodies |
| CL27 Rev1 |
Adoption of edition 5.2.0 of IHO Publication S-100 - IHO Universal Hydrographic Data Model. |
| CL26 | Publication of the Annual Report of the IHO for 2023 |
| CL25 | Empowering Women in Hydrography Project - UK Improving Gender Balance Fund - Call for applications. |
| CL24 | 100th New IHO Member State - Republic of Kiribati |
| CL23 |
Empowering Women in Hydrography - IC ENC eLearning Creation - Call for applications |
| CL22 |
Joint Canada - IHO Project Empowering Women in Hydrography - NOAA (USA) at-sea experience - internship selection. |
| CL21 | Ukraine's request for assistance |
| CL20Rev1 |
IHO-IOC GEBCO Guiding Committee (GGC) - New IHO representative |
| CL19 |
Adoption of the IHO Resolution - The Ex Abyssis ad Alta - IHO Award for hydrographic excellence. |
| CL18 Rev1 |
Call for the approval of edition 5.2.0 of IHO Publication S-100 - IHO Universal Hydrographic Data Model. |
| CL17 | IHO - Nippon Foundation GEOMAC Project – Successful nomination of candidates for the 16th course. |
| CL16 | IHO Fund Generation Project Team - Nominations |
| CL15 | Category “B” Hydrographic Survey Programme sponsored by the Republic of Korea - (17 June - 1 November 2024)- Selection of Candidates. |
| CL14 |
IRCC Workshop on Crowdsourced Bathymetry (CSB) 26 April 2024, IHO Secretariat - Monaco, Hybrid Event. |
| CL13 | Announcement of the selection of new Assistant Director at the IHO Secretariat. |
| CL12 |
IHO-IOC Nippon Foundation / GEBCO Training Project. Call for applications for 21st graduate certificate in Ocean Mapping |
| CL11 | Empowering Women in Hydrography Project and Gender Balance in Hydrography, Shom (France) Hydrographic and Oceanographic Surveys and Hydrographic Training - Internship Selection |
| CL10 | FIG/IHO/ICA International Board on Standards of Competence for Hydrographic Surveyors and Nautical Cartographers (IBSC) - IHO Nomination. |
| CL09 |
Empowering Women in Hydrography - NOAA (USA) at Sea Experience - Call for applications. |
| CL08 |
IHO-IAG Advisory Board on the Law of the Sea (ABLOS) - IHO Representatives. |
| CL07 |
22nd meeting of the Capacity Building Sub-Committee (CBSC22) 5 to 7 June 2024, Santa Cruz Island - Galapagos, Ecuador |
| CL06 | Call for the approval of the IHO Resolution on the Proposed Ex Abyssis ad Alta – IHO Award for Hydrographic Excellence |
| CL05 |
Master of Science Programme in Hydrographic Science at the University of Southern Mississippi (USA) Sponsored by the Republic of Korea – Selection of candidates (12th Course, 11 August 2024 to 6 August 2025). |
| CL04 | 16th Meeting of the Hydrographic Services and Standards Committee (HSSC-16), 27 – 31 May 2024, Tokyo, Japan |
| CL03 | Call for applications for training under the IHO - Nippon Foundation Geospatial Marine Analysis and Cartography (GEOMAC) Project, UKHO, Taunton, UK |
| CL02 | Adoption of Amendments to the Terms of Reference and Rules of Procedure of the Hydrographic Services and Standards Committee (HSSC) |
| CL01 |
Theme for World Hydrography Day 2024 and Media Outreach |
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