WCAG 2.2, Section 508 & EN 301 549 Compliance Matrix Portal
WCAG 2.2, Section 508 & EN 301 549 Compliance Matrix Portal
Regulatory Framework Scoping & Core Exceptions Guide
| Target Standard Track | Web (HTML) | Non-Web Docs | Software UI | Hardware Platforms |
|---|---|---|---|---|
| W3C WCAG 2.2 Matrix | ✓ Direct Baseline | WCAG2ICT Guidance | WCAG2ICT Guidance | ✘ Not Covered |
| Revised Section 508 | ✓ Chapter 5 (via WCAG 2.0) | ✓ Chapter 6 (Electronic Docs) | ✓ Chapter 5 (Applications) | ✓ Chapter 4 (Stationary Platforms) |
| European EN 301 549 | ✓ Clause 9 (via WCAG 2.1) | ✓ Clause 10 (Downloadable PDFs) | ✓ Clause 11 (Interoperability) | ✓ Clause 8 (Hardware/Kiosks) |
| W3C WCAG 3.0 (Silver) | ★ Guidelines Draft | ★ Guidelines Draft | ★ Guidelines Draft | ★ Guidelines Draft |
W3C WCAG 2.2 Matrix
W3C WCAG 2.2 Matrix
✓ Direct Baseline
WCAG2ICT Guidance
WCAG2ICT Guidance
✘ Not Covered
Revised Section 508
Revised Section 508
✓ Chapter 5 (via WCAG 2.0)
✓ Chapter 6 (Electronic Docs)
✓ Chapter 5 (Applications)
✓ Chapter 4 (Stationary Platforms)
European EN 301 549
European EN 301 549
✓ Clause 9 (via WCAG 2.1)
✓ Clause 10 (Downloadable PDFs)
✓ Clause 11 (Interoperability)
✓ Clause 8 (Hardware/Kiosks)
W3C WCAG 3.0 (Silver)
W3C WCAG 3.0 (Silver)
★ Guidelines Draft
★ Guidelines Draft
★ Guidelines Draft
★ Guidelines Draft
Critical Procurement Exceptions & Scoping Safe Harbors:
- The 501.1 Web Application Safe Harbor: Web applications are completely exempt from platform interoperability compliance metrics (Chapters 502/503) if they do not have access to native platform accessibility features, provided they conform fully with WCAG 2.0 Level A and AA.
- The 4.1.1 Parsing Reality Trap: While WCAG 2.2 formally removed 4.1.1, it remains a binding legal requirement for Section 508 and EN 301 549 audits because federal and European frameworks are legally tied to WCAG 2.0 and 2.1 iterations respectively.
- Stationary Control Bounds (EN 8.3 / Sec 508 407.8): Physical interaction controls on shared stationary ICT equipment (such as check-in kiosks) must maintain clear operational heights between 300 mm (15 in) minimum and 1220 mm (48 in) maximum for unobstructed access parameters.
Core Web Accessibility Principles (POUR Matrix):
1. Perceivable: Information and user interface components must be presentable to users in ways they can perceive (cannot be invisible to all of their senses).
2. Operable: User interface components and navigation must be operable (the interface cannot require interaction that a user cannot perform).
3. Understandable: Information and the operation of the user interface must be understandable (users must be able to comprehend the content and operation).
4. Robust: Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
Human Impact Scope Legend (Exclusionary ICT Disability Domains):
Visual
Users relying on screen readers (JAWS/NVDA), screen magnifiers, or those requiring high luminance contrast.
Motor
Users relying on keyboard-only navigation, switch devices, head pointers, or individuals experiencing tremors.
Cognitive
Users with ADHD, dyslexia, memory impairment, or those requiring predictable interaction and reading models.
Auditory
Users who are deaf, hard of hearing, or require synchronized closed captions and text transcripts.
Speech
Non-vocal users or individuals relying heavily on voice-control dictation software (e.g., Dragon NaturallySpeaking).
Photosensitivity
Users prone to seizures triggered by strobing media, rapid flashing, or fast layout animations.
CRITICAL SEIZURE SAFEGUARDS (Guideline 2.3 Operable - Photosensitivity Limits):
Level AA Baseline Criteria (SC 2.3.1):
Web components are permitted to flash or flicker only if the active animation area falls below the general flash/red-flash physical dimensions threshold, or if the calculated luminance shift remains within mathematically safe parameters.
Level AAA Enhanced Criteria (SC 2.3.2):
Removes all mathematical area and luminance exceptions. Enforces a strict, unconditional ceiling: Content must not contain any animation, stroboscopic media, or transitions that cycle more than three times within any single one-second window.
Unified Compliance Matrix Cross-Reference Database
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