U.S. Department of Health and Human Services - Usability
http://www.w3.org/TR/WAI-WEBCONTENT/ The accessibility standards on which Section 508 is based. Adopted by many countries as law

General Electric : Accessibility Statement
there may be some legacy pages and pages developed by third-parties that are not fully compliant with our standards. If you would like further information about our accessibility standards or have

Hamilton & Bond | Web Accessibility Standards
Origin of Web Accessibility Standards Two prominent organizations are helping to steer web accessibility standards, prudent assessment techniques and design guidelines

Information Accessibility Standards for Web Pages (ADA)
Pages that are developed in support of projects that receive federal funding through a grant or other means are bound to comply with federal accessibility standards which are