What WCAG 3.3.4 Requires
For forms involving legal commitments, financial transactions or the deletion of user-controllable data, submissions must be reversible, checked for errors before finalizing, or confirmed before completing.
Can AccessBell Test This Automatically?
Not fully. Like most WCAG criteria that depend on meaning or context, this one needs a person to judge. AccessBell's report lists it for manual review rather than marking it pass or fail automatically, so it never gets missed.
How to Test It by Hand
Complete a checkout, account deletion or similar high-stakes form and check for a review or confirmation step before it finalizes.
Common Failures
- A "delete account" button executes immediately with no confirmation step.
- A purchase finalizes with no order review screen.
Related Criteria in Input Assistance
WCAG 3.3.4 Questions
What does WCAG 3.3.4 require?
For forms involving legal commitments, financial transactions or the deletion of user-controllable data, submissions must be reversible, checked for errors before finalizing, or confirmed before completing.
Can AccessBell test WCAG 3.3.4 automatically?
Not fully. This criterion needs a person to judge, so AccessBell's report lists it for manual review rather than marking it pass or fail on its own.
What level is WCAG 3.3.4?
Level AA, added in WCAG 2.0. Level AA is required to meet WCAG AA, the level referenced by the ADA, Section 508 and most accessibility laws.
Sources
- W3C: Understanding 3.3.4 Error Prevention (Legal, Financial, Data) (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.