ESF 15 ensures that sufficient assets are deployed to the field during incidents requiring a coordinated response to provide accurate, coordinated, timely, and accessible information to affected audiences, including governments, media, the private sector, and the local populace, including the special needs population.

ESF 15 coordinates actions to provide the required external affairs support to local incident management elements. It applies to all departments and agencies that may require incident communications and external affairs support or whose external affairs assets may be employed during incidents requiring a coordinated response.

ESF 15 integrates Public Affairs, Community Relations and the private sector under the coordinating auspices of External Affairs. Another component, the Joint Information Center (JIC), ensures the coordinated release of information under ESF 15.