"A Voluntary Product Accessibility Template (VPAT™) is a document that explains how information and communication technology (ICT) products such as software, hardware, electronic content, and support documentation meet (conform to) the Revised 508 Standards for IT accessibility. VPATs™ help Federal agency contracting officials and government buyers to assess ICT for accessibility when doing market research and evaluating proposals."
General Services Administration. (2018). Voluntary product accessibility template (VPAT). https://www.section508.gov/sell/acr-vpat-faq/