Which standard governs barrier-free design in the US and what does it cover?

• A. ICC Standards for Accessible Design cover accessibility guidelines.
• B. ADA Standards for Accessible Design cover accessibility requirements for built environments and services.
• C. LEED Certification outlines accessibility requirements within buildings.
• D. ASHRAE Guidelines address barrier-free design.

Answer: (B)

Barrier-free design in the US is governed by the ADA Standards for Accessible Design, which set the minimum requirements to ensure people with disabilities can access both the built environment and the services offered within it. These standards cover architectural elements like entrances, door widths, ramps and elevators, restrooms, signage, and parking, as well as how services and communications are provided—so access isn’t just about space but about how facilities and programs are delivered. The ADA Standards apply to new construction and alterations of public accommodations and commercial facilities, with enforcement by the Department of Justice. Other options don’t fit because ICC standards provide technical accessibility guidelines that jurisdictions may adopt, LEED focuses on sustainability credits including some accessibility aspects, and ASHRAE guidelines address indoor environmental quality rather than barrier-free design requirements.