The Americans with Disabilities Act (ADA) gives civil rights protections to individuals with disabilities that are like those provided to individuals on the basis of race, sex, national origin, and religion. It guarantees equal opportunity for individuals with disabilities in employment, public accommodations, transportation, State and local government services, and telecommunications.
For documents outlining the technical requirements for accessibility to buildings and facilities by individuals with disabilities under the Americans with Disabilities Act (ADA) including technical requirements to be applied during the design, construction, and alteration of buildings and facilities covered by titles II and III of the ADA required by Federal agencies and the Department of Justice and the Department of Transportation, under the ADA visit ADA Accessibility Guidelines for Buildings and Facilities (
All website owners should offer their users information and user interfaces in an easily perceivable manner. Moreover, they must provide text alternatives for non-text content such as images, voice, and videos. They must also offer captions or text summaries for audio and video content. Being perceivable also requires that the content should be easy to identify programmatically. This includes ease of listening and reading that features good contrast and easy volume controls. 
If you are applying for a job, an employer cannot ask you if you are disabled or ask about the nature or severity of your disability. An employer can ask if you can perform the duties of the job with or without reasonable accommodation. An employer can also ask you to describe or to demonstrate how, with or without reasonable accommodation, you will perform the duties of the job.

An accessible information technology system is one that can be operated in a variety of ways and does not rely on a single sense or ability of the user. This is important because a system that provides output only in visual format may not be accessible to people who are blind or have low vision, and a system that provides information only in audio format may not be accessible to people who are deaf or hard of hearing. Some individuals with disabilities may also need accessibility-related software or peripheral devices in order to use systems that comply with Section 508.
The ADA statute identifies who is a person with a disability, who has obligations under the ADA, general non-discrimination requirements and other basic obligations. It delegates fleshing out those obligations to federal agencies. The agencies issue regulations and design standards. The regulations have the details on the rights of people with disabilities and responsibilities of employers, state and local governments, transportation providers, businesses and non-profit organizations. The design standards specify how many entrances need to be accessible, how many toilet rooms and the design for those elements.  To know what the ADA requires, you need to read the law, regulations and design standards.  
The idea of federal legislation enhancing and extending civil rights legislation to millions of Americans with disabilities gained bipartisan support in late 1988 and early 1989. In early 1989 both Congress and the newly-inaugurated Bush White House worked separately, then jointly, to write legislation capable of expanding civil rights without imposing undue harm or costs on those already in compliance with existing rules and laws.[27]
Some people feel that the wording is so vague a person with any "minor" problem could file frivolous lawsuits for easy money. For example, they say, a person with a stiff neck could neglect certain job duties while hiding behind the ADA. However, this argument demonstrates a couple of misunderstanding about the nature of disabilities and the rules spelled out by this legislation.
If you have a disability and are qualified to do a job, the ADA protects you from job discrimination on the basis of your disability. Under the ADA, you have a disability if you have a physical or mental impairment that substantially limits a major life activity. The ADA also protects you if you have a history of such a disability, or if an employer believes that you have such a disability, even if you don't.
On September 25, 2008, President George W. Bush signed the ADA Amendments Act of 2008 (ADAAA) into law. The amendment broadened the definition of "disability", thereby extending the ADA's protections to a greater number of people.[43] The ADAAA also added to the ADA examples of "major life activities" including, but not limited to, "caring for oneself, performing manual tasks, seeing, hearing, eating, sleeping, walking, standing, lifting, bending, speaking, breathing, learning, reading, concentrating, thinking, communicating, and working" as well as the operation of several specified major bodily functions.[43] The act overturned a 1999 US Supreme Court case that held that an employee was not disabled if the impairment could be corrected by mitigating measures; it specifically provides that such impairment must be determined without considering such ameliorative measures. It also overturned the court restriction that an impairment which substantially limits one major life activity must also limit others to be considered a disability.[43] In 2008, the United States House Committee on Education and Labor stated that the amendment "makes it absolutely clear that the ADA is intended to provide broad coverage to protect anyone who faces discrimination on the basis of disability."[44] Thus the ADAAA led to broader coverage of impaired employees.