Which regulation requires that all electronic and information technology used by federal agencies must be accessible to users with disabilities?

Section 508 of the Rehabilitation Act is the regulation that mandates all electronic and information technology (EIT) used by federal agencies must be accessible to users with disabilities. This requirement is rooted in the broader goal of ensuring that individuals with disabilities have equal access to the technology and information that they use in the public sector.

By establishing standards for accessibility, Section 508 aims to eliminate barriers that could prevent disabled individuals from effectively accessing electronic information and services. It addresses aspects such as web content, software applications, and various forms of electronic communications to ensure inclusivity. Federal agencies are responsible for compliance with these standards, promoting accessibility in their technology offerings.

The other options pertain to different aspects of disability rights or accessibility but do not specifically mandate accessibility for electronic and information technology in federal agencies. For instance, the Americans with Disabilities Act focuses on broader disability rights while the Accessibility for Ontarians with Disabilities Act is specific to Ontario, Canada, and the Individuals with Disabilities Education Act pertains to education for children with disabilities.