S-100 Services

IC-ENC is working with its Member HOs to expand its offering beyond ENCs and to provide end users with a coherent package of S-100 Services

The IHO/HO/RENC environment is changing. We are now in the IHO's S-100 Implementation Decade and IC-ENC is working with its Member HOs to expand its offering beyond S-57 ENCs, and to provide end users with a coherent package of S-100 Services.

In line with the IHO S-100 Roadmap, we continue to develop and iterate our S-1XX services and have made good progress on all priority services. The Conversion Readiness service continues to support Members during the Dual Fuel transitionary period and we have successfully launched our IC-ENC S-101 Service to Value Added Resellers.

Image showing IC-ENC’s 3 service levels supporting members’ S-100 development

  • S-101 ENC

    S-101

    S-101 is the product specification for Electronic Navigational Charts (ENCs) and will ultimately replace S-57 as the official digital chart solution for use on ECDIS.

    S-101 ENCs are currently available within our live S-100 Service.

    This new service is increasing in size every month.

  • S-102 bathymetric surface data

    S-102

    S-102 is the product specification for bathymetric surface data, providing users with detailed bathymetric data as an additional layer to S-101 on ECDIS.

    The design and intention is to aid decision making and improve safety when navigating shallow waters.

  • S-104 Water Level information

    S-104

    S-104 is the water level information for surface navigation product. The specification supports astronomical and forecast predictions.

    The former (astro) is the more traditional long-term predictions

    The latter (forecast) combines metrological information to more accurately predict water levels based on near-term atmospheric conditions.

    Members have the option to choose which service they provide to IC-ENC.

  • S-111 surface currents

    S-111

    S-111 is the surface currents product specification, providing users with critical information on surface currents in the format of annual (astronomical) predictions and up to six hourly (forecast) predictions.

    Members have the option to choose which service they provide to IC-ENC.

Datasets intended for Live Service dissemination to Value Added Resellers

Datasets intended for testing and feedback.

Sending S-1XX datasets to IC-ENC

We welcome Members to send S-101, S-102, S-104 and S-111 datasets to IC-ENC for assessment at any time. They are to use the same mechanism as they currently use, noting facility has been provided to clearly show where they can place them for assessment.

Our validation process matches the same experience members enjoy with the S-57 validation service and subject to passing validation, pricing and a release agreement being in place, they will become part of our S-100 Service to Value Added Resellers (VARS).


Our trial data assessment process involves loading each dataset into S-100 software tools and performing validation where possible. Members will receive an assessment report for each submitted dataset with recommended improvement action.

When submitting S-1XX test datasets to IC-ENC, please complete this form and send it to therenc@ic-enc.org, together with uploading your dataset(s) to your FTP Upload folder.

S-100 LIVE datasets available now

We are pleased to announce that S-101 exchange sets are available via our authorised Value Adding Reseller network!

S-100 trial datasets available now

We are pleased to announce that S-100 trial datasets are available via our Product Development and Testing (PDT) Licence!

The S-100 Standard is a framework intended for the development of digital products and services for hydrographic, maritime and GIS communities set by the International Hydrographic Organization .