Web Content Accessibility Guidelines
The web accessibilty guidelines set forth by the World Wide Web Consortium's W3C's Web Accessibility Initiative are the standard for USI web site development.
W3C Content Accessibitly Guidelines (WCAG) 2.0
Accessibility of State and Local Government Websites to People with Disabilities
Guide to Section 508 Standards for Electronic and Information Technology
United States Access Board
Trace Center, University of Wisconsin-Madison
Federal Accessibility Acts