ADA was passed in 1990, it is a federal law that came into effect in 1992 and forbids discrimination against persons who are disabled. The ADA gives civil rights protection to individuals with disabilities. The act requires that "reasonable accommodation" occurs in public accommodations which includes the workplace, public transit, community building ect. for those with physical or mental disabilities. See Guidelines for Buildings.
The ADA is the first comprehensive civil rights legislation to protect people with disabilities.
The US Department of Justice will provide information about the ADA through a toll-free ADA Information Line. The toll free number allows businesses, State and local governments, or others to call and ask questions about general or specific ADA requirements including questions about the ADA Standards for Accessible Design. Phone Number: 800 - 514 - 0301