a11y teacher edition W3C WCAG 2.2 & WCAG 3.0 draft reference
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Translating W3C Standards for Designers, Developers, QA & Product teams

SC 1.3.4 Level AA Perceivable

Orientation

WCAG 2.2 success criterion • Guideline: Adaptable

Tier 1 ยท The normative floor

Baseline compliance

What the normative text of WCAG 2.2 requires, and nothing more. Only a failure of this tier is a WCAG failure.

The bare minimum

Content doesn't restrict its view and operation to a single display orientation (portrait or landscape) unless a specific orientation is essential.

Normative text

Verbatim from WCAG 2.2, W3C Recommendation 12 December 2024. Underlined terms are defined below.

Content does not restrict its view and operation to a single display orientation, such as portrait or landscape, unless a specific display orientation is essential.

Not required by the normative text

Common claims that this criterion does not support. Don't log these as WCAG failures.

  • A separately designed layout for each orientation. The requirement is not to lock orientation.

Definitions used (1)

Glossary definitions are normative. Their notes are informative.

essential

if removed, would fundamentally change the information or functionality of the content, and information and functionality cannot be achieved in another way that would conform

Notes in the criterion Informative

WCAG 2.2 lists notes among its informative material, which "does not create requirements that impact a conformance claim." They help interpret the criterion but are not part of the floor.

Examples where a particular display orientation may be essential are a bank check, a piano application, slides for a projector or television, or virtual reality content where content is not necessarily restricted to landscape or portrait display orientation.

Tier 2 ยท The gap

Usability & user impact

Where content can meet this criterion and still make things harder for people with disabilities. These are not failures of SC 1.3.4, so raise them as usability defects. Known failures, including failures of related criteria, are listed in Tier 1.

Content that technically rotates can still be awkward. In landscape on a phone, fixed headers and footers can leave only a sliver of usable space.

Tier 3 ยท The golden path

Recommended best practice

The pattern that meets the floor, closes the gap, and avoids audit disputes. A recommendation, not a requirement.

Use responsive layouts tested in both orientations, especially on devices mounted to wheelchairs or beds.

W3C's Understanding document and techniques for SC 1.3.4 โ†— are informative: sufficient techniques show ways to pass, and documented failures show common ways to fail, but neither changes what the criterion requires.

How SC 1.3.4 maps to the WCAG 3 draft

From this site's reviewed map to the WCAG 3 editor's draft. It's an interpretation: W3C has not published a mapping.

Successor provisions

From WCAG 2.2, section 5.1: โ€œThe main content of WCAG 2.2 is normative and defines requirements that impact conformance claims. Introductory material, appendices, sections marked as "non-normative", diagrams, examples, and notes are informative (non-normative). Non-normative material provides advisory information to help interpret the guidelines but does not create requirements that impact a conformance claim.โ€