RGAA (French accessibility standard)
RGAA, WCAG and the conformance levels
The RGAA does not invent its own rules. It is built directly on the W3C's Web Content Accessibility Guidelines (WCAG), organised around the four POUR principles: content must be Perceivable, Operable, Understandable and Robust. What the RGAA adds is a standardised testing methodology: each WCAG success criterion is broken down into precise, checkable tests so that two auditors evaluating the same site reach the same verdict.
WCAG defines three conformance levels, and the RGAA inherits them:
- Level A — the minimum: removes the most severe barriers (for example, text alternatives for images, keyboard access).
- Level AA — the practical target: covers contrast ratios, resizable text, consistent navigation. This is the level public-sector bodies in France are expected to meet.
- Level AAA — the most demanding: rarely achievable across a full site and not generally required as a blanket obligation.
An RGAA audit produces a conformance rate expressed as a percentage of applicable criteria that pass, which feeds the mandatory accessibility statement (déclaration d'accessibilité) published on the site.
| Aspect | WCAG | RGAA |
|---|---|---|
| Nature | International W3C guidelines | French national framework transposing WCAG |
| Scope | Web content worldwide | French public sector and qualifying private organisations |
| Conformance levels | A, AA, AAA | Same A / AA / AAA levels, AA as the target |
| Format | Principles and success criteria | Operational, testable criteria with a defined method |
| Legal weight in France | Reference standard | Backed by national law and enforcement |
Who is concerned and why it matters for a custom project
The RGAA carries a legal accessibility obligation in France. It applies to State bodies, local authorities and public institutions, and extends to certain private organisations that deliver a public-service mission or exceed defined size thresholds. Concerned organisations must publish an accessibility statement, indicate their conformance status, and provide a multi-year accessibility plan.
For a bespoke software or web application project, accessibility is far cheaper to build in than to retrofit. Practical implications during development include:
- Semantic, valid HTML and correct use of ARIA where native elements are not enough.
- Full keyboard operability and visible focus states, not mouse-only interactions.
- Sufficient colour contrast and content that remains usable when text is resized.
- Accessible forms with explicit labels, error messages and instructions.
- Compatibility with assistive technologies such as screen readers.
Treating the RGAA as a specification from the design phase reduces the gap between the delivered product and the conformance level the client is legally required to reach.
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