Elizabeth Whitmer, a director in CGI Federal’s Consulting, Applications, Solutions and Technology (CAST) organization, is a digital accessibility professional who has served the public sector since 2008. She has an expert understanding of accessibility guidelines, including Section 508, the Web Content Accessibility Guidelines (WCAG), and the Web Accessibility Initiative (WAI) Accessible Rich Internet Applications (ARIA) specification. Elizabeth also has experience as a conference presenter, having presented sessions to share accessibility topics and lessons learned at various industry conferences and events, including the international CSUN Assistive Technology Conference. She is a Certified Usability Analyst (CUA) through Human Factors International as well as a Certified Professional in Web Accessibility (CPWA) through the International Association of Accessibility Professionals.