"Accessibility refers to the design of products, devices, services, or environments for people with disabilities. The concept of accessible design ensures both "direct access" (i.e. unassisted) and "indirect access" meaning compatibility with a person's assistive technology (for example, computer screen readers)."
Below is the text from ONC regarding this new requirement:
The Usability People would welcome the opportunity to work with you on improving the Usability of Healthcare IT.
For expert Safety-enhanced Design (aka Usability) evaluation of your EHR: contact The Usability People
Together we may save a life! #SafeHealthIT