The Web Content Accessibility Guidelines (WCAG) 2.0 includes organizing
principles and guidelines, and has success criteria at three levels: A,
AA, AAA. WAI recommends meeting at least all WCAG 2.0 Level A and AA
A related document provides techniques that include specific details on
meeting the success criteria, such as code examples. WAI encourages
developers to use the How to Meet WCAG 2.0 quick
reference to access the
guidelines, success criteria, and techniques, along with the additional
descriptions, examples, and resources from “Understanding WCAG 2.0”.
To learn more about WCAG, see:
WCAG Overview - provides
background, an introduction to WCAG, and links to additional
How to Meet WCAG 2.0 - is
a customizable quick reference to Web Content Accessibility
Guidelines 2.0 requirements (Success Criteria) and techniques
How WCAG 2.0 Applies to Older People
This section explains how many of the Web Content Accessibility
Guidelines (WCAG) 2.0 guidelines and success criteria specifically meet
the needs of older web users. Although not all the WCAG 2.0 success
criteria are listed here, WAI recommends meeting at least all WCAG 2.0
Level A and AA success criteria. Some of the Level AAA success criteria
that are particularly important for older people are listed in this
When implementing WCAG 2.0, developers can use different techniques to
meet the success criteria. In some cases, using one technique instead of
another can optimize accessibility for certain users. This section lists
some of the techniques that can help optimize websites for older people.
(Many of the techniques link to additional information; those with
“(future link)” will be written up with later edits to the WCAG
This section is organized under the four principles of web accessibility
from WCAG 2.0: perceivable, operable, understandable, and robust.
Success criteria are listed thematically, to help readability. Sometimes
they are drawn from different guidelines to address a particular aspect.