The International Hydrographic Organization (IHO) Member States have adopted the first set of operational standards within the S-100 framework.
The IMO’s adoption of the revised Resolution MSC.530(106) on Performance Standards for ECDIS at its 108th Session in May 2024 underscores the global commitment to S-100 implementation. In addition, from January 1, 2026, S-100 ECDIS will be legal for use, with a transition period until 1 January, 2029, after which all new systems must comply with the updated IMO ECDIS Performance Standards.
Furthermore, Magnus Wallhagen chair of the Hydrographic Services and Standards Committee noted that implementing S-100 will bring four significant benefits: increased safety, enhanced efficiency, optimized loading capacity, and reduced environmental impact.
These align with the International Maritime Organization’s (IMO) Greenhouse Gas (GHG) Strategy. Moreover, S-100 implementation represents a step towards achieving autonomous navigation and improved cyber security.
Key S-100 product specifications adopted
Following the adoption of Edition 5.2.0 of S-100 in June 2024, operational editions of key S-100-based product specifications have been approved in December 2024. These include:
- S-101: Electronic Navigational Charts (ENCs)
- S-102: Bathymetric Surface
- S-104: Water Level Information
- S-111: Surface Currents
- S-129: Under Keel Clearance Management
These standards are now accessible via the IHO S-100 Geospatial Information (GI) Registry and the IHO website.
Implementation progress and next steps
The development of the remaining Phase 1 Product Specifications continues. Navigational Warnings (S-124) and the Catalogue of Nautical Products (S-128) have been submitted for HSSC endorsement, with approval anticipated in early 2025.
Phase 2 will focus on product specifications for route planning, with four key standards:
- S-122: Marine Protected Areas
- S-123: Marine Radio Services
- S-127: Marine Traffic Management
- S-131: Marine Harbour Infrastructure
The S-100 framework marks a step forward by enabling the integration of diverse datasets within a single Electronic Chart Display and Information System (ECDIS). Mariners will now be able to combine various data layers—such as Electronic Navigational Charts (ENCs), detailed depth information and dynamic information on water level and currents—to enhance situational awareness and decision-making.
The availability of operational versions of these standards represents the real starting point for coastal states to embark on the journey to produce official S-100 products.
…said Dr. John Nyberg, Director of the Technical Programme, IHO.
