The federal government has issued several opinion letters on the ADA in response to direct inquiries since 1992. These letters are to be considered informal guidance only.

• This letter is in response to a request for clarification of the transportation provisions of the Americans with Disabilities Act of 1990
• Nondiscrimination requirements applicable to transportation provided by hotels, motels, and airports.
• Information about the transportation provisions of the Americans with Disabilities Act (ADA).
• Part B of title II of the ADA establishes accessibility standards for the operation of public transportation systems.

• Under certain circumstances, the ADA also requires public entities to provide comparable paratransit service for persons with disabilities.