What is multiple command in the incident command system?

In the Incident Command System (ICS), multiple command refers to a situation where more than one individual or agency may have authority over a response operation, often leading to confusion and inefficiencies. To mitigate this, ICS emphasizes the establishment of a unified command structure, allowing for coordinated decision-making among different responding agencies while maintaining clear lines of responsibility. This approach ensures that all stakeholders work collaboratively toward common objectives, enhancing overall response effectiveness.