I think we're looking at two different firefighting services. When we talk about aircraft, aircraft rescue, and firefighting that is responding to an aircraft, that's a very specialized skill set and requires specialized equipment. The mandate for that, the quantity of services as well as the timing of services, is regulated by Transport Canada. That is in regulation.
How can airports choose to deliver that service? They can contract that with their firefighting service of jurisdiction. So, if they're in the city of Richmond, where Vancouver airport is, they can contract with...or bring it in-house as we've done at Pearson.
When it comes to the terminal building, that's structural firefighting so it's a different skill set. Again, airports can either choose to deliver that in-house or leave that to their firefighting service of jurisdiction.
We are mandated, of course, during emergency exercises to continually train and exercise with these agencies if they are providing a service, and the same with ambulance and police force of jurisdiction.