Introduction
The RGAA, or General Repository for Accessibility Improvement, is the mandatory French standard for digital accessibility of websites and applications. In 2026, its implementation is intensifying with reinforced sanctions for public and private organizations. This intermediate tutorial guides you through the key concepts without code, focusing on theoretical understanding and implementation strategies. The goal is to turn accessibility from a constraint into a competitive advantage by ensuring an inclusive experience for people with disabilities.
Prerequisites
- Basic knowledge of web accessibility (WCAG)
- Familiarity with digital audits
- Understanding of French legal obligations
- Access to an existing site or project for analysis
Step 1: Master the 4 Fundamental Principles
The RGAA is based on the four POUR principles: Perceivable, Operable, Understandable, and Robust. Each principle includes specific criteria that ensure content remains accessible through various assistive technologies. For example, the Perceivable principle requires images to have appropriate text alternatives. Analyzing a site through these principles helps quickly identify risk areas and prioritize fixes based on user impact.
Step 2: Choose the Appropriate Conformance Level
The RGAA defines three levels: A (essential), AA (recommended), and AAA (optimal). For most projects in 2026, targeting level AA offers the right balance between technical feasibility and user needs coverage. This choice directly influences the scope of testing and the volume of corrections required. Documenting the chosen level from the start facilitates communication with teams and regulatory authorities.
Step 3: Conduct a Structured Audit
An RGAA audit combines automated and manual tests according to the official grid of 106 criteria. Start by mapping representative pages, then apply the criteria in priority order. Results must be recorded with evidence and precise recommendations. This phase often reveals issues invisible to developers, such as insufficient color contrast or inadequate heading structures.
Step 4: Integrate Accessibility into Processes
Sustainable compliance requires embedding RGAA into design and development cycles. Train teams, create internal checklists, and schedule regular reviews. This preventive approach significantly reduces late-stage correction costs and improves overall product quality.
Best Practices
- Always test with real tools and users with disabilities
- Prioritize AA criteria before considering AAA
- Document every decision and exemption transparently
- Continuously train product and design teams
- Maintain regular monitoring of updates to the standard
Common Mistakes to Avoid
- Relying only on automated tests without manual validation
- Ignoring dynamically generated content after page load
- Underestimating the importance of meaningful text alternatives
- Deferring accessibility work until the end of the project instead of integrating it from the start
Going Further
Deepen your skills with our dedicated accessibility and RGAA training programs. Check our offerings at https://learni-group.com/formations for hands-on workshops and recognized certifications.