This document discusses the roles and responsibilities of document controllers at different levels within an organization. It describes the typical tasks of a document controller as managing, checking, registering, distributing, and reporting on documents. It then outlines the roles of document controller, senior document controller, and document control manager at the project or department level, noting their increasing experience and responsibilities. Finally, it defines the role of a document control manager at the company or corporation level, which involves overseeing teams, setting up integrated systems, and stakeholder management across the entire organization.