What is the ICS term for companies/crews working within the same geographical area?

The correct answer is the term "Division," which is used in the Incident Command System (ICS) to refer to specific geographic areas where companies or crews operate. In ICS, a Division is established when the incident area is divided into sections to enable effective management of resources and ensure that all personnel are accounted for and coordinated appropriately.

Divisions are particularly helpful in large incidents where multiple crews are active in different parts of the scene. By designating Divisions, the Incident Commander can efficiently delegate responsibility and manage operations, enhancing communication and resource allocation. Each Division operates independently yet is fully integrated into the overall command structure.

In contrast, terms such as Group, Branch, and Unit convey different structures and functions within ICS. Groups typically relate to functions being performed (e.g., rescue group, ventilation group), whereas a Branch is a higher-level organizational element that can encompass multiple Divisions or Groups if the incident complexity warrants it. A Unit represents the smallest organizational component, often containing specific tasks or functions. Thus, the term "Division" is most appropriate for describing companies or crews working within a defined geographical area.