Deputies in the ICS structure must be capable of assuming which role?

In the Incident Command System (ICS), deputies are essential personnel who support higher-ranking individuals in their respective roles. The primary purpose of having deputies is to ensure continuity of operations and to provide leadership in the absence of the primary position. Therefore, deputies must be capable of assuming the primary role when necessary, making it vital for them to be well-trained and knowledgeable about the responsibilities and tasks associated with that role.

Furthermore, this structure facilitates seamless transitions in leadership and enhances the operational effectiveness of the incident management team. For example, if the incident commander becomes unavailable, the deputy can take over the command functions without a loss of momentum, thereby maintaining situational awareness and decision-making continuity. This competency is crucial during expanding incidents, which often require quick adaptability and strong leadership in dynamic and complex environments.