When there is an incident—a transport truck tips over or a train derails—you can tell in an instant what's in the car or in the tank, or whatever load the truck or the train is carrying, because there are markings there that allow emergency responders to know exactly what they're dealing with when they arrive on the scene. In fact, they would know before they get there.
Does the same apply? For instance, when the Zim Kingston encountered its difficulties, would you have been able to find out what was on that ship, regardless of what might have been lost overboard? Would that give you a sense of what you might have to deal with? Is that kind of detail available to you?