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An accessible website is one that allows all Internet users to access its content without difficulty, including people with disabilities who use specialised software or hardware.

In order to obtain the best possible result, accessibility is taken into account by all the teams involved in the development of the site and all the contributors.

Updated on 16/05/2024

Accessibility statement  

Service Hydrographique et océanographique de la Marine (SHOM) undertakes to make its internet, intranet and extranet sites and its software packages accessible (as well as its mobile applications and digital street furniture) in accordance with article 47 of law no. 2005-102 of February 11, 2005.

 This declaration of accessibility applies to


Compliance status is partially compliant with the RGAA (référentiel général d'amélioration de l'accessibilité), version 4, due to the non-conformities and derogations listed below.


Test results  

The compliance audit carried out by Service Hydrographique et océanographique de la Marine (SHOM) revealed that 96% of RGAA version 4 criteria have been met.


Content not accessible


Image - text alternative (part 1.1 of the RGAA audit) 
Complex data table - Summary (part 5.1 of the RGAA audit) 
Tableau de données complexes - En têtes de colonnes et de lignes (part 5.6 of the RGAA audit)


Re-audit of June 8, 2023:
non-compliant criteria have been reviewed and corrected
Image - text alternative (part 1.1 of the RGAA audit) - Corrected and compliant
Complex data table - Summary (part 5.1 of the RGAA audit) - Not applicable

Complex data table - Column and row headers (RGAA audit part 5.6) - Corrected and compliant

Content not subject to accessibility requirements

Video files, maps and iframe mapping services


Establishment of this declaration of accessibility

This declaration was drawn up on April 28, 2023. It was updated on April 28, 2023.

Technologies used for the audit

  • Drupal 9
  • LAMP
  • HTML5
  • CSS
  • PHP
  • MySQL

Test environment

Content restitution tests were carried out on the basis of the combination provided by the RGAA reference database, with the following versions:


Accessibility evaluation tools

  • Web Developer Toolbar
  • Assistant RGAA
  • WCAG Contrast checker
  • Web Developer Toolbar
  • WCAG Contrast checker
  • Assistant RGAA


Site pages checked for compliance


Feedback and contact

If you are unable to access a content or service, you can contact the maritime limits manager to be directed to an accessible alternative or obtain the content in another form.


Appeal procedures

If you notice a lack of accessibility that prevents you from accessing any content or functionality on the site, and you report this to us and are unable to obtain a response from us, you are entitled to send your complaints or a request for referral to the Défenseur des droits.

There are several ways to do this:

Write a message to the Défenseur des droitsContact the Défenseur des droits delegate in your region

Send a letter by post (free of charge, do not use a stamp) Défenseur des droits Libre réponse 71120 75342 Paris CEDEX 07