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

โš ๏ธ W3C Working Draft Notice

WCAG 3.0 is an active W3C Working Draft in development by the AGWG. Requirements, assertions, the conformance model and reporting tiers are still being developed and may change. The latest published draft is the 10 September 2026 Working Draft; this site follows the editorsโ€™ draft, which also includes exploratory provisions.

exploratory Supplemental requirement

Numerical Alternatives Available

Group: text-and-wording • Guideline: clear-language

Summary in Plain English

An exploratory requirement: complex numerical information, such as statistics, comes with an explanation or an alternative.

Why It Matters

Statistics compress a lot of meaning into a form many readers cannot unpack, and a misread number can change a decision about health or money.

Scope: When This Applies

The draft's own conditions, quoted from guidelines/groups/text-and-wording/clear-language/numerical-alternatives-available.md.

Notes in the draft

Complex numerical information can increase cognitive load, especially for users with a limited ability to understand and work with numbers. Providing written explanations or visualizations can aid understanding.

Examples from the Draft

Worked examples the W3C editors wrote into the provision itself, not examples invented here.

Instead of:

โ€œThe stadium holds 60,000 people.โ€

Use:

โ€œThe stadium holds 60,000 people, which is about the size of a small city.โ€

Or:

โ€œThe stadium holds many people.โ€