# WCAG 2.2 – 1.2.4 Captions (Live)

- Level: AA
- Principle: 1 Perceivable
- Guideline: 1.2 Time-based Media
- Introduced in: WCAG 2.0

## What the rule requires

Live videos with sound also have captions that run in real time.

## How to get it right

Plan real-time captioning (CART) for live streams and webinars, or use live captions that a person monitors.

## Who benefits

- Deaf people

## Sources

- [This rule on wcag.dehl.net](https://wcag.dehl.net/en/wcag/1-2-4/)
- [Official W3C explanation](https://www.w3.org/WAI/WCAG22/Understanding/captions-live)
- [Techniques (WCAG Quick Reference)](https://www.w3.org/WAI/WCAG22/quickref/#captions-live)

_Plain-language explanation. Only the original W3C text is normative._