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.
exploratoryCore requirement
Non-verbal cues identified in captions
Group: images-and-media • Guideline: captions
Summary in Plain English
An exploratory requirement: nonverbal cues needed to understand the media are explained in the captions.
Why It Matters
Tone, sarcasm and emotion carry meaning that the words alone do not. Captions that omit them can invert what a scene means.