Minimum standard. Without achieving "A" standard, it is assumed that there could be a group of people who might not be able to browse the website comfortably.
The desirable standard. If "AA" standard is achieved, there will be less cases of difficulty in browsing websites.
Advanced criteria. A website would be the most accessible to browse if "AAA" standard is achieved.
University of Bath
Google for Education - Online Resources for Teachers & Students
Loblaw Companies Ltd.
Levels of conformanceA
Xbox Official Site
Whitney Museum of American Art
Digital Museums Canada
Levels of conformanceAA
Information-technology Promotion Agency, Japan New graduate recruitment