See Web Content Accessibility Guidelines (WCAG) Overview for a description of the WCAG 2.2 supporting material, including education resources
               related to WCAG 2. Additional resources covering topics such as the business case
               for Web accessibility, planning implementation to improve the accessibility of Web
               sites, and accessibility policies are listed in WAI Resources . Requirements for WCAG 2.2 WCAG 2.2 meets a set of requirements for WCAG 2.2 which, in turn, inherit requirements from previous WCAG 2 versions. Requirements
               structure the overall framework of guidelines and ensure backwards compatibility.
               The Working Group also used a less formal set of acceptance criteria for success criteria,
               to help ensure success criteria are similar in style and quality to those in WCAG
               2.0. These requirements constrained what could be included in WCAG 2.2.