Controlled Unclassified designates information that may be illegal to distribute. This information is available when needed by government employees, such as the USA's Department of Defense (DoD) employees, but the designation signifies that the information should not be redistributed to users not designated to use it on an operational basis. For example, the organization and processes of an information-technology system may be designated Controlled Unclassified to users for whom the operational details of the system are non-critical.