WAI: Strategies, guidelines, resources to make the Web accessible to people with disabilities
The following table lists information about the three conformance levels in WCAG 2.0: A, AA, and AAA. To meet a given conformance level, a site must satisfy all the success criteria at that level. A success criterion is satisfied by being actively implemented with sufficient techniques, or by virtue of being not applicable to the content of the site. The converse is also true, that there must be no failures of the success criterion requirements on the site.
To exit Candidate Recommendation, there must be documentation of four implementations that conform to A, four that conform to AA, and two that conform to AAA. Additionally, there must be at least one site that demonstrates the concept of Partial Conformance (at any level). Based on implementation experience, the WCAG Working Group also introduced the concept of Partial Conformance due to Language Support, and similarly sought to document at least one implementation of this concept.
| Conformance Level | Sites that meet level |
|---|---|
| A | 4 |
| AA | 7 |
| AAA | 2 |
| Partial Conformance | 1 (A) |
| Partial due to Language | 1 (A) |
The following table lists each success criterion in WCAG 2.0. The data is taken from the set of sites that were chosen to be included in this report. "Implementations" is the number of sites that actively implemented the success criterion. "Techniques" is the number of documented techniques that were observed being used to satisfy the success criterion. Each number links to a page providing the data behind that number.
Only documentation that there are at least two active implementations of each success criterion is required to exit Candidate Recommendation. The information in the other columns is informative. It records relevant observations made during the implementation evaluation process. Conclusions from this data may inform future work.
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