That aspect of governance belongs to the landowners and the provinces, but, at times, they need help. That's why we talk about working hand in glove. For example, with a fire—which is the area I know about—if SOPFEU needs help, they call the Canadian Interagency Forest Fire Centre and resources are sent.
However, at times, there are not enough resources. That's when you need additional resources. It has to be the call of the province to request that help. You cannot just come in unannounced. You have to work together.
A unified command to deal with the emergency is critical. I would argue that, in Canada, we don't have unified command as we should.