Which of the following is a major responsibility of an Incident Commander?

The choice indicating that a major responsibility of the Incident Commander is to approve the implementation of the incident action plan is accurate. The Incident Commander plays a pivotal role in overseeing the overall incident response and ensuring that the strategies outlined in the incident action plan align with the objectives set for the incident. This responsibility includes evaluating the feasibility of the planned actions and ensuring their effectiveness in addressing the incident's goals.

In the context of incident management, an approved incident action plan serves as a guiding document that outlines the operational tactics and resource allocation for the response. The Incident Commander ensures that all efforts are coordinated, resources are effectively utilized, and compliance with the established plan is maintained throughout the incident. This central role also allows the Incident Commander to adapt to changing circumstances during the response, ensuring that all actions taken are within the framework of the approved plan.

Other responsibilities, such as managing external communications, leading operational tactics, and establishing safety protocols, are significant functions within the broader incident command structure but typically fall under the purview of other key personnel within the command structure. While the Incident Commander is ultimately responsible for the overall safety and operational effectiveness, these specific tasks may be delegated to other team members to ensure efficient management.