The U.S. Access Board provided guidance on the use of the International Symbol of Accessibility (ISA) under the Americans with Disabilities Act (ADA) and the Architectural Barriers Act (ABA). This guidance explains how use of a symbol other than the ISA may impact compliance with standards issued under the ADA and the ABA.
Source Credit: U.S. Access Board
View Online: https://www.access-board.gov/guidelines-and-standards/buildings-and-sites/about-the-ada-standards/guide-to-the-ada-standards/guidance-on-the-isa