The Americans with Disabilities Act (ADA) is a civil rights law, which prohibits discrimination on the basis of disability. In 2000, the Architectural and Transportation Barriers Compliance Board issued a final rule in the form of accessibility guidelines to serve as the basis for standards to be adopted by the Department of Justice for new construction and alterations of play areas by the ADA.
These guidelines have not been adopted by law, but they provide playground operators with a blueprint for an accessible playground.
ADA Accessibility Guidelines (ADAAG) for Play Areas
NPPS has a CD-ROM the offers clear explanation of the ADA standards for play areas.