July 26, 2025 marks 35 years since the Americans with Disabilities Act of 1990 (ADA) was signed into law by President George H.W. Bush. The ADA prohibits discrimination on the basis of disability in both the private and state and local government sectors. Under the ADA, the U.S. Access Board develops and maintains accessibility guidelines for the construction and alteration of facilities covered by the law, as well as guidelines for the design of the public right-of-way and transportation vehicles. These guidelines serve as the basis of standards used by other agencies to enforce the ADA’s design requirements. The Access Board celebrates the 35th anniversary of the ADA as it continues to hold trainings, webinars, public events, and engagements with international partners throughout the year.