off topic: wai/508 compliance checker

Hi all,

 

This is off topic from the list, but I wanted to check what validators
people use for Web Accessibility Initiative (WAI) or "Section 508"
(similar initiaitive) validation.

 

I didn't see a w3c WAI validator. From what I understand, the
requirements are more fuzzy than pure xml/html validation. 

 

Thanks,

 

Bill Milbratz