Registry · Understandable

3.3.4 — Error Prevention (Legal, Financial, Data)

Level AA Understandable

Operational summary

IF a page creates a legal/financial commitment, modifies or deletes user-controllable stored data, or submits test responses, provide reversal OR checking with correction OR review/confirmation/correction before finalization. All three are not universally mandatory.

This is an original implementation summary, not replacement normative text. The sources below supply the precise requirement, its definitions and its qualifications.

Primary sources

• Normative text — W3C WCAG 2.2 Recommendation
• Understanding 3.3.4 — explanatory guidance

Registry record

Applicability and assessment start unset by design — no product has been evaluated. Instantiate the entry for an actual product, assign an owner and retain evidence.

{
  "criterion_id": "3.3.4",
  "level": "AA",
  "name": "Error Prevention (Legal, Financial, Data)",
  "rule_definition": "../03-WCAG22-AA-REGISTRY.md#sc-3-3-4",
  "normative_source": "https://www.w3.org/TR/WCAG22/#error-prevention-legal-financial-data",
  "understanding_source": "https://www.w3.org/WAI/WCAG22/Understanding/error-prevention-legal-financial-data.html",
  "applicability_status": "NOT_EVALUATED",
  "assessment_status": "NOT_TESTED",
  "owner": null,
  "test_instance_ids": [],
  "exception_evidence_ids": []
}

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