The U.S. Department of Health and Human Services, Office for Civil Rights (OCR) has entered into several settlement agreements and issued letters of findings as part of its ongoing efforts to ensure compliance with Section 504 of the Rehabilitation Act of 1973 (Section 504) and the Americans with Disabilities Act of 1990 (ADA).
http://www.hhs.gov/news/press/2011pres/10/20111018b.htmlSec. 504 was signed in the late 70s and the ADA was signed on 1990. They are just now being enforced with some seriousness.