Which two standards primarily govern building accessibility?

The Americans with Disabilities Act (ADA) and local accessibility codes are the primary standards that govern building accessibility. The ADA is a federal law that sets forth comprehensive guidelines to ensure that individuals with disabilities have equal access to buildings and facilities. It covers various aspects such as architectural standards, transport systems, and other services that may affect accessibility.

Local accessibility codes often complement the ADA by addressing specific regional needs and conditions, ensuring that local developments meet the necessary accessibility requirements pertinent to their community. This combination ensures a robust framework for designing buildings that are inclusive and accessible to all individuals, regardless of their physical capabilities.

While other choices mention various building codes and standards, they do not focus primarily on accessibility in the same comprehensive manner as the ADA and local codes do. The international and national codes listed in the other options may touch on accessibility but do not serve as the main governing sources for accessibility standards.