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A detailed side-by-side comparison of the current stable standard and the next generation of accessibility guidelines. Understand the key differences in conformance, scope, structure, and testing — and what remains the same.
How the two standards differ across eight key dimensions.
The biggest structural change: from tiered pass/fail levels to graduated outcomes-based scoring.
Despite the structural overhaul, much of the foundation remains unchanged.
WCAG 2.2 remains a valid, stable W3C Recommendation. It continues to be the required standard for legal compliance worldwide and will not be deprecated when WCAG 3.0 is released.
The fundamental accessibility concepts — making content perceivable, operable, understandable, and robust — still apply. WCAG 3.0 reorganizes them into 12 categories but the underlying principles carry forward.
Teams with strong WCAG 2.x expertise will find their knowledge directly applicable. Most WCAG 2.2 requirements map to WCAG 3.0 equivalents, and accessible development practices remain the same.
Laws and regulations — including the ADA, Section 508, EN 301 549, and the European Accessibility Act — continue referencing WCAG 2.x. This will not change until years after WCAG 3.0 is finalized.
The key areas where WCAG 3.0 departs from the WCAG 2.x approach.
WCAG 3.0 introduces new vocabulary: outcomes replace success criteria, methods replace techniques, and assertions represent organizational commitments. The entire framework uses updated language.
The standard expands beyond web content to cover native applications, authoring tools, user agents, IoT devices, virtual reality, and augmented reality — reflected in the renamed title.
The A/AA/AAA level system is replaced by graduated scoring. Partial accessibility efforts receive credit, and conformance is measured on a spectrum rather than as a binary pass/fail.
WCAG 3.0 is designed as a living standard with regular incremental updates, replacing the static versioned release model that required years between WCAG 2.0, 2.1, and 2.2.
Content meeting WCAG 2.2 Level A and AA is expected to satisfy most of WCAG 3.0's minimum conformance level. However, WCAG 3.0 introduces new areas of coverage — such as cognitive accessibility and broader platform scope — so some additional work will likely be needed. A full re-audit is not expected, but a gap analysis against WCAG 3.0's new requirements is recommended once the standard is finalized.
No. WCAG 3.0 is currently a Working Draft and is not referenced by any law or regulation. For legal compliance, use WCAG 2.2 Level AA, which is referenced by the ADA, Section 508, EN 301 549, and the European Accessibility Act. It will take years after WCAG 3.0 is finalized for regulatory bodies to update their legal references.
WCAG 3.0 is different rather than harder. The graduated scoring model provides more nuance than the binary pass/fail of WCAG 2.x, meaning partial accessibility efforts receive credit rather than outright failure. Content that already conforms to WCAG 2.2 Level A and AA is expected to meet most of WCAG 3.0's minimum conformance level, so strong WCAG 2.2 compliance is the best preparation.
Dive deeper into WCAG 3.0 or review the current WCAG 2.2 checklist.
Complete guide to everything about W3C Accessibility Guidelines 3.0.
Read moreInteractive checklist for current WCAG 2.2 compliance requirements.
Read moreDeep dive into WCAG 3.0's new category structure replacing POUR principles.
Read moreReference guide to outcomes, methods, assertions, and functional needs.
Read moreActionable steps to prepare your team for WCAG 3.0 today.
Read moreComprehensive tools, checklists, and guides to help you create inclusive digital experiences