General Staff Overview
In an expanding incident, the Incident Commander first establishes the Operations Section. The remaining sections are established as needed to support the operation.
Incident Command System organization chart. Top level is Incident Commander. Next level down is Operations Section, Planning Section, Logistics Section, Finance/Administration Section.  Dotted line around Planning Section, Logistics Section, and Finance/Administration Section, labeled "Activated as needed to support the incident response." Arrow pointing to Operations Section, labeled "Directs all responses/tactical actions to achieve the incident objectives."