In the private work area (an area not regularly open to the public), the DOL allows religious expression to the same extent that non-religious private expression is allowed. Supervisors are allowed to limit religious expression if it interferes with the agency’s ability to do its work properly. However the restriction is not to be of the content or viewpoints of the religious expression. For example the supervisor may ban posters in general, regardless of content, but may not specifically ban or endorse the hanging of religious/anti-religious posters.