This is no joke. If you work for Federal Money, which I do, everything published to the web must be Section 508 compliant.
It’s like a choke chain on a leash. Many, many tools and features useful to 99% of your users must remain unavailable because 1% of the people who come to your site might not be able to use them.
It’s one of the reasons ANY federal web site is so BORING in design.
More: Scott Greenfield, Simple Justice (“The Public Accommodation Formerly Known As SJ”)