The Department of Justice published revised final regulations implementing the Americans with Disabilities Act (ADA) for title II (State and local government services) and title III (public accommodations and commercial facilities) on September 15, 2010, in the Federal Register. These requirements, or rules, clarify and refine issues that have arisen over the past 20 years and contain new, and updated, requirements, including the 2010 Standards for Accessible Design (2010 Standards).
Not to be outdone by their Southern neighbors, the Canadian government site is highly accessible. The home page is a simple page, beautiful in its perfect symmetry between English and French. The default language as specified on the element is English (lang="en", hey they had to pick one) but all French content is marked up with lang="fr". It's actually quite pleasing, and very Canadian, to listen to this page with JAWS as it alternates between the two languages.
The ADA requires that title II entities (State and local governments) and title III entities (businesses and nonprofit organizations that serve the public) communicate effectively with people who have communication disabilities. The goal is to ensure that communication with people with these disabilities is equally effective as communication with people without disabilities.