WAI Accessibility Guidelines

W3C Web Accessibility Initiative (WAI) develops and maintains:

• ATAG - Authoring Tool Accessibility Guidelines
  http://www.w3.org/WAI/intro/atag
• UAAG - User Agent Accessibility Guidelines
  http://www.w3.org/WAI/intro/uaag
• WCAG - Web Content Accessibility Guidelines
  http://www.w3.org/WAI/intro/wcag