WCAG 2.0 Level AAA

3.3.6:Error Prevention (All): (AAA)

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

  • 1.Reversible: Submissions are reversible.


3.3.6:Error Prevention (All): (AAA) full Guideline

3.3.5: Help: (AAA)

Context-sensitive help is available. (Level AAA)

Sufficient Techniques for 3.3.5 – Help

Situation A: If a form requires text input:

  • 1.G71: Providing a help link on every Web page


3.3.5: Help: (AAA) full Guideline

3.2.5: Change on Request: (AAA)

Changes of context are initiated only by user request or a mechanism is available to turn off such changes. (Level AAA)



3.2.5: Change on Request: (AAA) full Guideline

3.1.6: Pronunciation: (AAA)

A mechanism is available for identifying specific pronunciation of words where meaning of the words, in context, is ambiguous without knowing the pronunciation. (Level AAA



3.1.6: Pronunciation: (AAA) full Guideline

3.1.5: Reading Level: (AAA)

When text requires reading ability more advanced than the lower secondary education level after removal of proper names and titles, supplemental content, or a version that does not require reading ability more advanced than the lower secondary education level, is available. (Level AAA)



3.1.5: Reading Level: (AAA) full Guideline

3.1.4: Abbreviations: (AAA)

A mechanism for identifying the expanded form or meaning of abbreviations is available. (Level AAA)



3.1.4: Abbreviations: (AAA) full Guideline

3.1.3: Unusual Words: (AAA)

A mechanism is available for identifying specific definitions of words or phrases used in an unusual or restricted way, including idioms and jargon. (Level AAA)



3.1.3: Unusual Words: (AAA) full Guideline

2.4.10: Section Headings: (AAA)

Section headings are used to organize the content. (Level AAA)

Note 1: “Heading” is used in its general sense and includes titles and other ways to add a heading to different types of content.



2.4.10: Section Headings: (AAA) full Guideline

2.4.9: Link Purpose (Link Only): (AAA)

A mechanism is available to allow the purpose of each link to be identified from link text alone, except where the purpose of the link would be ambiguous to users in general. (Level AAA)



2.4.9: Link Purpose (Link Only): (AAA) full Guideline

2.4.8: Location: (AAA)

Information about the user’s location within a set of Web pages is available. (Level AAA)

Sufficient Techniques for 2.4.8 – Location

  • 1.G65: Providing a breadcrumb trail


2.4.8: Location: (AAA) full Guideline