WCAG 3.0 vs WCAG 2.2: What Changes and What Stays
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.
Side-by-Side Comparison
How the two standards differ across eight key dimensions.
Conformance Models Compared
The biggest structural change: leveling moves out of conformance and into reporting.
What Stays the Same
Despite the structural overhaul, much of the foundation remains unchanged.
WCAG 2.x Not Deprecated
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.
Core Principles Transfer
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.
Existing Knowledge Valuable
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.
Legal Continuity
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.
What Changes
The key areas where WCAG 3.0 departs from the WCAG 2.x approach.
New Terminology
WCAG 3.0 introduces new vocabulary: requirements replace success criteria, guidelines are written as outcome statements, methods replace techniques, and assertions represent documented accessibility practices. The entire framework uses updated language.
Broader Scope
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.
Levels Move to Reporting
The September 2026 draft moves the concept of leveling out of conformance altogether. Conformance itself is a single bar: meet every core requirement. Progress toward and beyond that bar is expressed through six cumulative reporting tiers instead of A/AA/AAA.
Regular Updates
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.
Frequently Asked Questions
Will my WCAG 2.2 compliant site need to be re-audited for WCAG 3.0?
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.
Can I use WCAG 3.0 for legal compliance today?
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.
Is WCAG 3.0 harder to meet than WCAG 2.2?
WCAG 3.0 is different rather than harder. Individual requirements are still pass or fail, but the six reporting tiers give partial progress somewhere to show rather than reporting it as 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. The W3C does caution that WCAG 3 adds tests WCAG 2.2 does not have, so reaching full conformance will take additional work.
Continue Exploring
Dive deeper into WCAG 3.0 or review the current WCAG 2.2 checklist.
WCAG 3.0 Overview
Complete guide to everything about W3C Accessibility Guidelines 3.0.
Read moreWCAG 2.2 Checklist
Interactive checklist for current WCAG 2.2 compliance requirements.
Read more12 Guideline Categories
Deep dive into WCAG 3.0's new category structure replacing POUR principles.
Read moreKey Concepts & Terminology
Reference guide to outcomes, methods, assertions, and functional needs.
Read moreHow to Prepare
Actionable steps to prepare your team for WCAG 3.0 today.
Read moreEssential Accessibility Resources
Comprehensive tools, checklists, and guides to help you create inclusive digital experiences