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Standards pending entry into force

This page provides a list of IHO standards and product specifications relevant to ECDIS that have been officially published but are not yet in force. These include standards that have been approved and released, but whose implementation dates are in the future, as defined in the S-100 Implementation Roadmap. Only standards that are intended to be implemented in ECDIS are listed here. Each entry includes the publication date, the scheduled date of entry into force, and any applicable notes regarding transition periods or dual-fuel operations. ECDIS manufacturers, hydrographic offices, and system integrators are encouraged to regularly consult this page to prepare for upcoming requirements under the S-100 framework and ensure timely compliance. Date of update: 9 May 2025

Equality in the Workplace Conference

The Scientific Centre of Monaco (CSM), the International Hydrographic Organization (IHO) and the Women's Rights Committee of the Government of Monaco, in partnership with the Monegasque Association for Sustainable Finance (AMFID) and SheCanHeCan, are organizing a conference followed by a cocktail reception on gender equality as part of International Women's Day. The event will be held on Thursday March 9th at 18:30 at the Hermitage Hotel in Monaco and will be in French.

S-52 Portrayal Bulletins

Introduction S-52 provides specifications and guidance regarding the issuing and updating of Electronic Navigational Charts (ENC), and their display in ECDIS. This IHO Publication was developed in conjunction with the IMO Performance Standards for Electronic Chart Display and Information System (ECDIS). The S-52 Chart Presentation Bulletins are placed here to communicate information concerning portrayal and update issues related to ECDIS and ENC production. They may influence ENC producers´ encoding practices and should be consulted in conjunction with the S-57 Encoding Bulletins. Each Bulletin explains a particular ECDIS portrayal issue, recommended procedures for addressing the issue and the consequences of not following the recommended procedures.

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IHO 100 Years

The International Hydrographic Organization (IHO) turned 100 on 21 June 2021, with an on-site celebration in Monaco which was broadcast live online.

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Capacity Building Assessment

Assessment is part of the Capacity Building cycle defined as 4As: Awareness-Assessment-Analysis-Action.

3rd UN Ocean Conference Nice

The 3rd UN Ocean Conference (UNOC3) will take place in Nice, France, from June 9 to 13, 2025. This pivotal event will bring together global leaders, scientists, policy-makers, and ocean advocates to drive solutions for the preservation and sustainable use of our oceans. Stay tuned for event details and highlights as we prepare for this crucial gathering to shape the future of our oceans.

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S-100 Universal Hydrographic Data Model

S-100 Universal Hydrographic Data Model The IHO has developed the S-100 Universal Hydrographic Data Model to cater for future demands for digital products and services. The IHO Geospatial Information Registry contains several Registers containing managed lists of concepts, features attributes metadata, and other resources used to develop product specifications.

Achieving a Fully Mapped Ocean: A Call to Action

This interactive side event will look at solutions and how to drive momentum toward a fully mapped ocean. It will explore key opportunities and challenges across policy, finance, governance, technology, marine knowledge sharing, capacity building and more.