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IHO PORTAL
Internationl Hydrographic Organization
  • About IHO
    • Staff
    • About
    • Member States
    • Basic Documents
    • Circular Letters
    • Assembly
    • Council
    • Finance Information
    • IHO Strategic Plan and Work Programme
    • Projects & Initiatives
    • External Liaisons
    • IHO Disclaimer, Privacy & Copyright Notice
    • Spanish Content
    • Visit Us
  • Inter-Regional Coordination
    • Inter-Regional Coordination Committee (IRCC)
    • Regional Hydrographic Commissions (RHCs)
    • Capacity Development & Technical Cooperation
    • Education & Programme Recognition
  • Services & Standards
    • Hydrographic Services & Standards Committee (HSSC)
    • Scope of Standardization Activities
    • ENC & ECDIS
    • S-100 Universal Hydrographic Data Model
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RSAHC10 (2024)

10th Meeting  Jeddah, Saudi Arabia (26 - 28 November 2024)

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S-100 FAQ's

S-57 Frequently Asked Questions

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S-57 Encoding Bulletins

S-57 Edition 3.1 Encoding Bulletins

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TWCWG5 (2021)

5th Tides, Water Level and Currents Working Group (TWCWG5) Remote VTC 16-18 March 2021

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SEPRHC15 (2023)

15th Meeting 27-29 November 2023, Valparaiso, Chile (TBD)

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EAtHC Letters

Circular Letters Last update: 21 October 2024

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ABLOS26 (2019)

26th Advisory Board on Law of the Sea (ABLOS) Business Meeting (7 & 10 October 2019) IHO Secretariat, Monaco

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HDWG3 (2022)

Hydrographic Dictionary Working Group (HDWG 2022) tbc 2022, Europe - Location tbc

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SWAtHC15 (2021)

15th Meeting 31 August - 1 September 2021, VTC

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Winner of the 2026 Ex Abyssis ad Alta IHO Award Announced
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Winner of the 2026 Ex Abyssis ad Alta IHO Award Announced
World Hydrography Day 2026: Transforming How Ocean Data Is Shared
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World Hydrography Day 2026: Transforming How Ocean Data Is Shared
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