Guide to the ADA Standards

Model Building Codes and Industry Standards

The Access Board’s 2004 ADA Accessibility Guidelines, upon which the current ADA Standards are based, have been harmonized to a significant extent with industry standards and model building codes, including the International Building Code (IBC). The IBC contains application and scoping provisions for accessibility (in chapters 10, 11 and 34) that correspond to those in the ADA guidelines (chapters 1 and 2). For technical provisions, the IBC references a consensus standard developed through the American National Standards Institute (the ANSI A117.1 standard), which is highly consistent with the technical chapters (3-10) of the ADA guidelines. There are some substantive differences. For example, unlike the ADA guidelines, the ANSI standards require an additional vertical grab bar at water closets, transfer shower stalls, and tubs. Detailed comparisons between the 2004 ADA guidelines and the IBC/ANSI standard are available on the Access Board’s website and the International Code Council’s website at www.iccsafe.org.

The ADA Standards also reference several industry standards, including the American Society of Mechanical Engineers (ASME) elevator safety code and the National Fire Protection Association (NFPA) 72 Fire Alarm Code. In addition, the ADA Standards reference provisions in the IBC covering accessible means of egress.