WCAG is a document of success criteria that can be used to test and determine the accessibility of digital content, with a goal of increasing the accessibility of digital content for people with a wide variety of disabilities. There are 72 WCAG success criteria, and they can be difficult to understand and apply. The Accessibility and Usability Lab has created resources to make accessibility specifically for blind and low vision users easier to understand. WCAG 2.0 does not fully encompass every aspect of accessibility.