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 editors’ draft, which also includes exploratory provisions.
developingAssertion
Captions Style Guide
Group: images-and-media • Guideline: captions
Summary in Plain English
An organisational assertion: the organisation states that it has a style guide covering captions, plus a policy or process requiring it to be followed.
Why It Matters
Caption conventions - how speakers are named, how sounds are written - only help if they are stable. A style guide is how they stay stable across teams.
0
Examples from the Draft
Worked examples the W3C editors wrote into the provision itself, not
examples invented here.
Name: ABC Inc. Style Guide for Captions
Version: 1.2
Date: October 2024
Description: The style guide include sections such as:
What are captions?
Who needs captions?
Guideline provided by WCAG 3
Recommended style of captions
Resources
Example: The style guide has requirements such as:
Never use more than two lines.
Use parentheses for sound representation.
Identify no sound or long pause.
…
Test Procedure from the W3C Draft
Upstream has a test heading for this provision but has not written
the procedure yet, and no test steps have been written here.
Generic advice would apply to almost any provision, so none is shown.
W3C Working Group Status
W3C Maturity Status:developing
Track / Group:images-and-media
The draft records no open editors' notes on this provision.
W3C Threads on This Provision
No GitHub issue in w3c/wcag3 carries this provision's label, so there
is no recorded discussion to show. Cross-cutting threads that name no
provision are listed on the
Discussions page.
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.
No mapping recorded. No WCAG 2.2 criterion in
this site's map is recorded as a predecessor of this provision.
[Title, role, or organization] asserts that:
* Our organization has a style guide that includes guidance on captions and a policy and/or processes that the style guide must be followed.
::assertion-required
* title, role, or organization making the assertion (if different from the conformance claim)
* date of when the style guide was published
* date of assertion (if different from the date of the conformance claim)
::assertion-recommended
* summary of the needs of users involved
* identified issues and details of solutions applied
* copy or snapshot of the style guide
:::example
* **Name:** ABC Inc. Style Guide for Captions
* **Version:** 1.2
* **Date:** October 2024
* **Description:** The style guide include sections such as:
* What are captions?
* Who needs captions?
* Guideline provided by WCAG 3
* Recommended style of captions
* Resources
* **Example:** The style guide has requirements such as:
* Never use more than two lines.
* Use parentheses for sound representation.
* Identify no sound or long pause.
* …
:::