Please, provide an HTML rendering extension that complies with Web Content Accessibility Guidelines (WCAG) 2.0.
The Dutch government requires compliance with WCAG 2.0, as part of their web guidelines: http://versie2.webrichtlijnen.nl/norm/ (Dutch language). Please note that http://www.webrichtlijnen.nl/english contains, at this moment, an outdated version.
For now, Reporting Services cannot be the tool of choice any more for websites by Dutch governmental sites.
An extensive list of Government Accessibility Standards and WCAG 2.0 can be found at http://blog.powermapper.com/blog/post/Government-Accessibility-Standards.aspx (not verified by me), which greatly increases the scope of this suggestion.