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Almost, but not quite a guide to accessibility requirements
3 Understandable

3.3.6 Error Prevention (All)

Conformance level: AAA
Criterion released in WCAG version: 2.0

Official description of the success criterion

For Web pages that require the user to submit information, at least one of the following is true:

  • Reversible: Submissions are reversible.
  • Checked: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.
  • Confirmed: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission. 

What to do?

Ensure submissions can be reviewed, corrected, and confirmed.

Why is it important?

Reduces the risk of errors and enhances user confidence.

How to take this criterion into account in design and development?

This criterion extends the requirements of criterion 3.3.4 to all forms.

More about this criterion elsewhere