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• Principle 1 – Perceivable
• Principle 2 - Operable
• Principle 3 - Understandable
  • Guideline 3.1 - Readable
  • Guideline 3.2 - Predictable
  • Guideline 3.3 - Input Assistance
    • 3.3.1 Error Identification Level A
    • 3.3.2 Label or Instructions Level A
    • 3.3.3 Error Suggestion Level AA
    • 3.3.4 Error Prevention (Legal, Financial, Data) Level AA
    • 3.3.5 Help Level AAA
    • 3.3.6 Error Prevention (All) Level AAA
    • 3.3.7 Redundant Entry Level A
    • 3.3.8 Accessible Authentication (Minimum) Level AA
    • 3.3.9 Accessible Authentication (Enhanced) Level AAA
• Principle 4 - Robust

Conformance Levels

• Level A
• Level AA
• Level AAA