Which of the following is NOT a key component of an incident command system (ICS)?

In an Incident Command System (ICS), several key components are essential for effectively managing emergency situations. Communication is vital, as it ensures that information flows accurately and promptly between all parties involved, facilitating coordination and situational awareness. Supervision is also a critical element, as it helps oversee personnel and ensures that tasks are being executed correctly in alignment with the incident objectives. Planning is the foundation of ICS, as it involves the development of strategies based on the incident's nature and requirements, allowing for a structured approach to resource allocation and incident management.

Transport, while important in certain contexts regarding the movement of resources or personnel, is not inherently a component of the ICS framework itself. Instead, transport may be facilitated through the coordination efforts of the incident command but does not form a core element like the others. Therefore, identifying transport as not a key component aligns with the principles of an effective ICS.