Understanding s508 & WCAG 2.0 Posted by Michael Sheyahshe on May 08, 2017 AA accessibility guidelines s508 +2 section 508 standards W3C WAI WCAG WCAG 2.0 Web Accessibility Initiative AA accessibility guidelines s508 section 508 standards W3C WAI WCAG WCAG 2.0 Web Accessibility Initiative AA accessibility guidelines s508 section 508 standards W3C WAI WCAG WCAG 2.0 Web Accessibility Initiative