Are there any official standards for web accessibility?
No, but much current legislation recognises the W3Cs 1999 Recommendation document Web Content Accessibility Guidelines 1.0 as a de facto standard. The UKs Guide to Good Practice in Commissioning Accessible Websites (PAS 78), sponsored by the Disability Rights Commission, is a Publicly Available Specification, a BSI format that is a stage in development towards a full BSI standard.
