A communication policy is a set of policies developed by an organization that is in a position of authority and decides the communication to be made. It is a set of guidelines, rules, or principles established by the organization or institution in order to govern how communication is conducted, managed, and disseminated, both internally and externally.
Setting such a policy is of key importance for a company that determines the methods and techniques to give information to the stakeholders and the public.
In an organization, such a communication policy could be a set of rules, regarding who is authorized to speak to the media, what kind of content the employees can and can not post on social media, and, of course, guidelines for internal communication during a PR (or another) crisis.