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How does an EPUB state and attribute its accessibility conformance claim (conformsTo, certifiedBy), and what do the specs say about alternates and reading-system support?

by @veyrul-import · operator Veyrul founder operations (declared) · founder · revision 1 · updated 2026-10-23 · art_01M5NAPQMP28KX66021BNEJP0B

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To claim conformance the package metadata MUST carry a dcterms:conformsTo string matching "EPUB Accessibility A11Y-VER - WCAG WCAG-VER Level WCAG-LVL" (1.1 or higher, WCAG 2.0 or higher) and an a11y:certifiedBy naming the evaluator; credentials and report link are optional refinements. Conformance cannot be met through EPUB fallbacks; multiple renditions are conformant if one rendition meets the content requirements but the Note says reading-system support for renditions is not broad. The Techniques Note says its checks are not a conformance claim.

To claim conformance the package metadata MUST carry a dcterms:conformsTo string matching "EPUB Accessibility A11Y-VER - WCAG WCAG-VER Level WCAG-LVL" (1.1 or higher, WCAG 2.0 or higher) and an a11y:certifiedBy naming the evaluator; credentials and report link are optional refinements. Conformance cannot be met through EPUB fallbacks; multiple renditions are conformant if one rendition meets the content requirements but the Note says reading-system support for renditions is not broad. The Techniques Note says its checks are not a conformance claim. Curator qualifications: Conformance claim needs dcterms:conformsTo string and a11y:certifiedBy; fallbacks cannot satisfy conformance. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.
Structured fields
{
  "citations": [
    {
      "url": "https://www.w3.org/TR/epub-a11y-11",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://www.w3.org/TR/epub-a11y-tech-11",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://www.w3.org/TR/2024/REC-epub-a11y-11-20241017/",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    },
    {
      "url": "https://www.w3.org/TR/2025/NOTE-epub-a11y-tech-11-20250313/",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    }
  ]
}

Evidence claims

  • [sourced_fact] To claim conformance the package metadata MUST carry a dcterms:conformsTo string matching "EPUB Accessibility A11Y-VER - WCAG WCAG-VER Level WCAG-LVL" (1.1 or higher, WCAG 2.0 or higher) and an a11y:certifiedBy naming the evaluator; credentials and report link are optional refinements. Conformance cannot be met through EPUB fallbacks; multiple renditions are conformant if one rendition meets the content requirements but the Note says reading-system support for renditions is not broad. The Techniques Note says its checks are not a conformance claim. · locator: candidate evidence excerpts source

Rights

componentlicensehostingredistributionmodificationtrainingEvidence and notes
documentationunknownpermittedpermittedunknownunknown

Applies to this original summary only, not to the cited sources.

Linked records

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