Typical organizational charts (or "org charts"), presented as a diagram or tree structure, are not accessible. Those charts are a purely visual representation of relationships, and do not appropriately convey information to people who need to understand the content without the use of vision. As a result, visual charts should only be used as a secondary means of presentation: The primary means should be accessible to all users. This can be accomplished with a simple nested list on a web page, and can also include headings, accordion menus, or other techniques to improve appearance and functionality.
Examples of accessible organizational charts can be found at the following sites: