If you are interested in the aviation industry, you may have heard about the existence of a system called Air Traffic Control (ATC). It is used for managing air traffic, in order to keep it organized and safe.

In the case of an accident or a disaster, it is essential that the air traffic controllers know the situation and the details of the event. In this way, they can take the necessary steps to manage the traffic and keep it safe.

In the United States, there are four major ATC systems: the FAA's radar-based ATC system, the NAVAIR traffic-control system, the Joint Defense ATC system, and the military's Air Traffic Control Command. In addition to these, there are other ATC systems in other countries, such as Canada, Australia, Japan, Russia, Mexico, France, Ireland, Netherlands, Norway, Poland, and Switzerland.