Which type of system is it that keeps track of every company or team of fire fighters working at the scene of the incident from the time they arrive until the time they are released?

The type of system that keeps track of every company or team of firefighters working at the scene of an incident from the time they arrive until the time they are released is known as a personnel accountability system. This system is essential for maintaining safety and organization at emergency scenes. It ensures that all personnel are accounted for at all times, reducing the risk of personnel becoming lost or trapped in hazardous situations.

A personnel accountability system typically involves the use of tags, boards, or software that allows incident command to know precisely who is on scene, which units are deployed, and when they are sent to a particular task or released from duty. This accountability is crucial for coordinating operations, ensuring efficient resource management, and enhancing overall situational awareness during incidents. By maintaining strict accountability of personnel, the fire service can better respond to emergencies while prioritizing the safety of its members.