This page is not a help page, but a declaration of compliance with the General Accessibility Improvement Guideline (RGAA) 4, which aims to define the general level of accessibility observed on the website, in accordance with the regulations. This page is mandatory to comply with RGAA 4.1.

What is digital accessibility?

An accessible website is a site that enables all Internet users to access its content easily, including individuals with a disability who use specialised software programs or equipment.

An accessible website makes it possible to:

  • Browse with voice recognition systems or Braille displays (used in particular by blind or partially sighted Internet users).
  • Customise the display of the website depending on your needs (increase the size of characters, modify colours, etc.).
  • Browse without the use of a mouse, with the sole use of a keyboard or via a touch screen.

Accessibility policy of the website

Lyon Métropole undertakes to make its Internet, intranet and extranet sites, software packages, mobile applications and digital urban furniture accessible, in accordance with Article 47 of the Law 2005-102 of 11 February 2005.

Multi-year accessibility plan

  • Actions carried out:
    • Audit of all websites and publication of compliance declarations on the “Accessibility” web pages
    • Workshop with associations for people with disabilities to get their feedback on the main Lyon Métropole websites
  • Upcoming actions in 2021:
    • Updating of the certificates drawn up under RGAA version 3 to comply with RGAA version 4.1
    • Several other workshops with associations for people with disabilities, and taking on board their feedback
    • Training and certification of an accessibility advisor within the IT department
    • Improvement of website accessibility depending on audits and workshop feedback
  • Upcoming actions in 2022:
    • For all websites, finalisation of the updating of certificates to comply with RGAA version 4.1
    • Improvement of the accessibility rate of our websites depending on audits and workshop feedback (the aim being to exceed 75% for all websites)

RGAA 4.1 accessibility declaration

The accessibility declaration for the website was drawn up on 02/11/2021.
RGAA version 4.1 was used to carry out tests.

The accessibility declaration is valid from its date of publication. It must be updated:

  • on the date of a significant modification or redesign of the website in question.
  • 3 years after the date of publication of the declaration, or,
  • 18 months after the date of publication of a new version of the guidelines, for those that apply the technical method.

However, it may be advisable to update the accessibility declaration more regularly, even for the same version of the technical method, in order to highlight the efforts made and to update the percentage of criteria met.

Technology used to create the website

  • HTML5
  • CSS3
  • JavaScript
  • TYPO3 content management system

Testing environment

The content rendering tests were carried out based on the combination provided by the RGAA 4.1 reference database, with the following versions:

  • Firefox 78.15.0esr (64 bits)
  • Chrome 94.0.4606.81
  • NVDA 2020.4

Tools used to assess accessibility

 The following tools were used during the assessment:

  • Color Contrast Analyser (version:
  • Web Developer Extension for Firefox (version 2.0.5)
  • Stylus Extension for Firefox
  • WC3 Validation Service

Website pages subject to compliance checks

The audit covered a sample of pages for RGAA 4.1:

Compliance status

The website is partly compliance with the general accessibility improvement guideline (RGAA), version 4.1 due to the non-conformities and exemptions listed below.

Test results

The compliance audit carried out by the company AUSY revealed that 79.66 % of the RGAA version 4.1 criteria were met.

Non-accessible content

The site contains non-conformities in the following areas:

  • Images: 2 non-conformities
  • Colours: 1 non-conformity
  • Links: 1 non-conformity
  • Scripts: 2 non-conformities
  • Structure: 2 non-conformities
  • Presentation: 3 non-conformities
  • Viewing: 1 non-conformity

Exemptions for disproportionate cost


Content not covered by the accessibility obligation


Feedback and contact

If you are unable to access content or a service, you can contact the website manager to be directed to an accessible alternative or obtain the content in a different format:

Complaints procedure

This procedure can be used in the following case.
You gave informed the website manager of an accessibility defect that prevents you from accessing content or one of the portal services and you have not received a satisfactory response: