Captions available (prerecorded)
Group: images-and-media • Guideline: captions
Summary in Plain English
All prerecorded audio content is captioned, unless the audio is an alternative to text and is clearly labelled as such.
Why It Matters
Captions are the primary route into spoken content for deaf and hard-of-hearing users, and the route many other people use in noisy or silent settings.
Scope: When This Applies
The draft's own conditions, quoted from guidelines/groups/images-and-media/captions/captions-available-prerecorded.md.
Except when
- The audio content is an alternative for text and is clearly labeled as such.
Test Procedure from the W3C Draft
Quoted from the provision's informative document, informative/guidelines/images-and-media/captions/captions-available-prerecorded.md. It is the group's own procedure, not an editorial testing guide.
Procedure
For each prerecorded media asset:
- If the captions format is closed captions:
- Turn on the closed caption feature of the media player
- View the synchronized media content
- Check that captions (of all dialogue and important sounds) are visible and in the human language of the video
- If the captions format is open captions:
- Check that captions (of all dialogue and important sounds) are visible and in the human language of the video
Expected results
- #1 or #2 is true.
W3C Working Group Status
The draft records no open editors' notes on this provision.
W3C Threads on This Provision
4 GitHub threads carrying 20 comments, fetched from w3c/wcag3 by the tracker. Titles, numbers and states are the threads' own.
⚠️ This summary is stale — comments landed after it was written.
What the Argument Is About
Only one real argument happened here โ whether open captions are images of text โ and it was settled; the rest of the provision is unanswered proposals, including the request to define "important sounds", which drew no replies at all.
Positions taken in the thread
Argued in #23 that open captions are literally pixels of text burned into video frames, so they would fail 1.4.5 Images of Text at AA if they had alt text, and otherwise fail 1.1.1 Non-text Content at A, since no video frame carries alt text. Conceded awkawk's rebuttal on the alt-text point but held the substantive request: open-captioned video should be required to carry a textual transcript in WCAG 3, not only from 1.2.8 upward. Raised the edge case of instructional video with music-only audio, where the captions are effectively carrying video-only time-based media.
Open captions are part of the time-based media, not separate non-text content, so the alternative required at Level A is the alternative for the video as a whole. Captions of either kind are equivalents for audio information, so the Prerecorded Video-Only provision u9000-Nine cited does not apply โ video-only content has no audio and therefore no captions. Stated flatly that open captions pass Level A, full stop, and that a transcript for audio information is not required until 1.2.8.
Argues in #23 that without knowing who said what, a story or issue becomes hard to follow, and that this is critical for people with face-blindness โ Finnberrys identifies people by voice, so muted or inaccessible audio removes the only cue. Compares captions without speaker identification to reading a playscript with no character names, and cites Teams meetings, where visible names do the work that in-person recognition cannot. Makes the same case for blind users reading captions or a transcript on a braille display.
u9000-Nine notes that identifying speakers by caption position on screen does nothing for someone with face-blindness, since the cue still depends on matching a location to a face. mitchellevan calls the discussion North-America-centric for assuming the identifier is text, pointing to the BBC's subtitle guidance recommending colour to distinguish speakers, a practice also common in continental Europe โ while acknowledging colour identification may itself fail Use of Color. Neither rejects the need; both points bear on which mechanism would satisfy it, and mitchellevan asks for more international context.
On whether advertising and promotional video should carry less weight than primary content, mraccess77 points out that inaccessible video causes clear discrimination in areas such as fair housing and healthcare, and draws the parallel to audio description, once dismissed as unnecessary for entertainment until entertainment was recognised as a right too. mitchellevan agrees on equal weight: user needs and technical feasibility are the same, "promotional" resists definition, and regulations such as the US Air Carrier Access Act already carve out advertising where a jurisdiction wants that. Prioritisation should sit in regulation, not be baked into a technical standard.
InfoGapBuster, writing as a Deaf person in #325, argues auto-generated subtitles may be inaccurate or fail to convey tone and nuance, and that WCAG 2.0 putting sign language at AAA led to limited implementation. Cites 250,000 to 500,000 primary ASL users in the US per Gallaudet, roughly 70 million Deaf people globally per the World Federation of the Deaf, about 60,000 JSL users in Japan, and 90 to 97 percent of Deaf children born to hearing parents with the resulting risk of language deprivation. Wants sign language translation โ prepared in advance, distinct from live interpretation โ named as a distinct outcome, arguing that requiring it would generate demand, grow the interpreter pool and accumulate training data. md84419 goes further, calling for a sign language alternative to website text and citing the BSL Act 2022, the Equality Act 2010, the Irish Sign Language Act 2017, the Korean Sign Language Act 2016 and the New Zealand Sign Language Act 2006 as evidence that language-based discrimination is already legally constrained.
Agreed
- Advertising and promotional video should carry the same weight as primary content in the standard itself, with any exemption left to regulators โ mraccess77 and mitchellevan, unrebutted.
- awkawk's reading that open captions are part of the time-based media and need no alternative text of their own was accepted by u9000-Nine ("That is fair"), narrowing the dispute to whether a transcript should also be required.
- GreggVan's procedural point that no conformance level has been finalised, so nothing definitive can be said about what Bronze, Silver or Gold require, went unchallenged.
Still open
- What counts as an "important sound". sydneycolemanfromgoogle opened #525 arguing the term is subjective and leads to missing context; the issue has no replies.
- Whether open-captioned video must also provide a textual transcript in WCAG 3 โ u9000-Nine's core request in #23, which awkawk acknowledged as clear but did not agree or disagree with.
- Whether speaker identification is required, and whether text, colour or caption position satisfies it โ raised by Finnberrys, complicated by u9000-Nine and mitchellevan.
- Whether closed captions should be preferred over open captions, or open captions barred on new material, and how caption accuracy is graded across missing words, missing audio cues, absent speaker labels and punctuation carrying emphasis or sarcasm โ all posed in WilcoFiers's original #23 body and none answered.
- Whether MakotoUeki's proposal in #463 to merge other prerecorded-caption requirements into this one is accepted; the issue, opened in December 2025, has drawn no comments.
- Whether the sign-language material belongs under this provision at all. md84419 argues in #325 that what is being discussed is text alternatives and needs a new section in 2.2 Text and Wording rather than 2.1 Image and Media Alternatives.
Note
Thin and asynchronous. Nineteen comments across four issues, two of which (#463 and #525) have zero replies, and the substantive exchange in #23 ran from September to November 2023, with two follow-up comments from mitchellevan a year later. InfoGapBuster's own proposed tiering permits auto-generated captions at Bronze, which sits awkwardly against the same comment's argument that automatic subtitles are unreliable โ nobody in the thread picked this up.
- #23 Create Audio and video alternatives guideline open 13 comments · updated 2026-09-11
- #325 Clarifying and Enhancing Requirements for Sign Language and Subtitles in WCAG 3.0 closed 7 comments · updated 2026-10-12
- #463 Can merge some other requirements? - Captions prerecorded (Foundational) open 0 comments · updated 2026-03-29
- #525 [Captions available (prerecorded)] define โimportant soundsโ? open 0 comments · updated 2026-03-27
WCAG 2.2 Criteria That Map Here
From this site's reviewed WCAG 2.2 → WCAG 3 map. The map is an interpretation, not a W3C mapping: W3C has not published one yet.
W3C Raw Source Text
Verbatim from guidelines/groups/images-and-media/captions/captions-available-prerecorded.md · informative document: informative/guidelines/images-and-media/captions/captions-available-prerecorded.md
Captions are available for all prerecorded audio content. :::except-when - The audio content is an alternative for text and is clearly labeled as such. :::