Thank you very much for the question.
Essentially what takes place is that we're notified that there's an incident, be it through notification from a rail line that there's been an accident, notification from the public through a call on 911 that there's smoke, or whatever the case may be. Indication of an incident obviously comes from many different means, and in the world of many cell phones and everything else, 911 is usually the means through which we get the call.
So the initial process is that the first response to that location would indicate if it's a train derailment. Most of our individuals are trained to an awareness level, so they approach the location of the defined incident from a safe distance, and that's isolated through training of awareness level. They try to ascertain where and what products may be involved and/or indicated, and that's where communication centres start the process of contacting the rail lines—