What WCAG 2.2.4 Requires
AAA only: interruptions such as notifications or alerts can be postponed or suppressed by the visitor, except emergency alerts.
Can AccessBell Test This Automatically?
Yes. AccessBell's scanner runs axe-core, which includes 1 rule that catch code-level failures of this criterion:
meta-refresh-no-exceptions— Ensure <meta http-equiv="refresh"> is not used for delayed refresh (details (opens in a new tab))
How to Test It by Hand
Check whether pop-up notifications or alerts can be deferred or turned off.
Common Failures
- Marketing pop-ups interrupt a task in progress with no way to suppress future interruptions.
Related Criteria in Enough Time
WCAG 2.2.4 Questions
What does WCAG 2.2.4 require?
AAA only: interruptions such as notifications or alerts can be postponed or suppressed by the visitor, except emergency alerts.
Can AccessBell test WCAG 2.2.4 automatically?
Yes. AccessBell runs 1 automated rule that can catch failures of this criterion.
What level is WCAG 2.2.4?
Level AAA, added in WCAG 2.0. Level AAA is the highest, most demanding conformance level in WCAG.
Sources
- W3C: Understanding 2.2.4 Interruptions (opens in a new tab)
- W3C: Web Content Accessibility Guidelines (WCAG) 2.2 (opens in a new tab)
This page explains a technical standard and is not legal advice. See our disclaimer.