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WAI 'AAA' Compliance

Web accessibility is all about making your website accessible to all web users (whether they are disabled or not), and regardless of the technology they are using.

The Priority 3 or 'AAA' classification is an area where you must satisfy all checkpoints, having first achieved all the Priority 1 and 2 checkpoints. Otherwise, one or more groups will find it impossible to access information in the document. Satisfying this checkpoint is a basic requirement for some groups to be able to use Web documents.

Priority 3 (General)

• Specify the expansion of each abbreviation or acronym in a document where it first occurs (section 4.2)
  
• Identify the primary natural language of a document (section 4.3)
  
• Create a logical tab order through links, form controls, and object (section 9.4)
  
• Provide keyboard shortcuts to important links (including those in client-side image maps), form controls, and groups of form controls (section 9.5)
  
• Until user agents (including assistive technologies) render adjacent links distinctly, include non-link, printable characters (surrounded by spaces) between adjacent links (section 10.5)
  
• Provide information so that users may receive documents according to their preferences (e.g. language, content type, etc.) (section 11.3)
  
• Provide navigation bars to highlight and give access to the navigation mechanism (section 13.5)
  
• Group related links, identify the group (for user agents), and, until user agents do so, provide a way to bypass the group (section 13.6)
  
• If search functions are provided, enable different types of searches for different skill levels and preferences (section 13.7)
  
• Place distinguishing information at the beginning of headings, paragraphs, lists, etc (section 13.8)
  
• Provide information about document collections (i.e. documents comprising multiple pages.) (section 13.9)
  
• Provide a means to skip over multi-line ASCII art (section 13.10)
  
• Supplement text with graphic or auditory presentations where they will facilitate comprehension of the page (section 14.2)
  
• Create a style of presentation that is consistent across pages (section 14.3)

Priority 3 (Images and image maps)

• Until user agents render text equivalents for client-side image map links, provide redundant text links for each active region of a client-side image map (section 1.5)

Priority 3 (Tables)

• Provide summaries for tables (section 5.5)
  
• Provide abbreviations for header labels (section 5.6)
  
• Until user agents (including assistive technologies) render side-by-side text correctly, provide a linear text alternative (on the current page or some other) for all tables that lay out text in parallel, word-wrapped columns (section 10.3)

Priority 3 (Forms)

• Until user agents handle empty controls correctly, include default, place-holding characters in edit boxes and text areas (section 10.4)

Our evaluation of WAI 'AAA' audited sites provides the website owner with the logo shown here: