Here is a helpful post on a blog for people with hearing & vision loss.
The United States Department of Justice operates a toll-free Americans with Disabilities Act (ADA) Information Line to provide information and materials to the public about the requirements of the ADA.
If you’d like assistance understanding how the ADA applies to your situation, ADA Specialists are available Monday through Wednesday and Friday from 9:30 AM to 5:30 PM.
1-800-514-0301 (Voice)
1-800-514-0383 (TTY)
Calls are confidential
And a link to ADA resources
http://www.ada.gov/ada_info.htm?blm_aid=17419