Title I of the ADA prohibits discrimination in employment against people with disabilities. It requires employers to make reasonable accommodations to the known physical or mental limitations of a qualified applicant or employee, unless such accommodation would impose an undue hardship on the employer. Reasonable accommodations include such actions as making worksites accessible, modifying existing equipment, providing new devices, modifying work schedules, restructuring jobs, and providing readers or interpreters.
Title I also prohibits the use of employment tests and other selection criteria that screen out, or tend to screen out, individuals with disabilities, unless such tests or criteria are shown to be job-related and consistent with business necessity. It also bans the use of pre-employment medical examinations or inquiries to determine if an applicant has a disability. It does, however, permit the use of a medical examination after a job offer has been made if the results are kept confidential; all persons offered employment in the same job category are required to take them; and the results are not used to discriminate.
Employers are permitted, at any time, to inquire about the ability of a job applicant or employee to perform job-related functions. The EEOC is the enforcement agency for Title I.
Title II of the ADA requires that the services and programs of local and State governments, as well as other non-Federal government agencies, shall operate their programs so that when viewed in their entirety are readily accessible to and usable by individuals with disabilities.
Title II entities:
In addition, Title II seeks to ensure that people with disabilities have access to existing public transportation services. All new buses must be accessible. Transit authorities must provide supplementary paratransit services or other special transportation services for individuals with disabilities who cannot use fixed-route bus services, unless this would present an undue burden.
Public accommodations include the broad range of privately-owned entities that affect commerce, including sales, rental, and service establishments; private educational institutions; recreational facilities; and social service centers. In providing goods and services, a public accommodation may not use eligibility requirements that exclude or segregate individuals with disabilities, unless the requirements are "necessary" for the operation of the public accommodation. As an example, restricting people with Down's Syndrome to a certain area of a restaurant would violate Title III. It also requires public accommodations to make reasonable modifications to policies, practices, and procedures, unless those modifications would fundamentally alter the nature of the services provided by the public accommodation.
Title III also requires that public accommodations provide auxiliary aids necessary to enable persons who have visual, hearing, or sensory impairments to participate in the program, but only if their provision will not result in an undue burden on the business. Thus, for example, a restaurant would not be required to provide menus in braille for blind patrons if it requires its wait persons to read the menu. The auxiliary aid requirement is flexible. A public accommodation may choose among various alternatives as long as the result is effective communication.
With respect to existing facilities of public accommodations, physical barriers must be removed when it is "readily achievable" to do so (i.e., when it can be accomplished easily and without much expense). Tax write-offs are available to minimize the costs associated with the removal of barriers in existing buildings or in providing auxiliary aids, including interpreters for the deaf. Modifications that would be readily achievable in most cases include the ramping of a few steps. However, all construction of new building facilities and alterations of existing facilities in public accommodations, as well as in commercial facilities such as office buildings, must comply with the ADA Accessibility Guidelines (ADAAG) so they are accessible to people with disabilities. New privately owned buildings are not required to install elevators if they are less than three stories high or have less than 3,000 square feet per story, unless the building is a shopping center, mall, or a professional office of a health care provider.
Title III also addresses transportation provided by private entities.
Title IV requires that telephone companies provide telecommunications relay services that allow individuals with hearing impairments to communicate using a TTY or other non-voice device. Relay services may be accessed by dialing 7-1-1.
Title IV also requires that all television public service announcement produced by or funded in whole or in part by the federal government include closed captioning.
Title V includes information regarding the ADA's relationship with other federal and state laws, including the Rehabilitation Act of 1973, requirements relating to the provision of insurance, construction and design regulations by the U.S. Access Board, prohibition of state immunity, inclusion of Congress as a covered entity under the law, promotion of alternative means of dispute resolution, and establishment of technical assistance resources.