Our experience has been that SMS can be geared to the size and complexity of the individual airports and so on. As Mr. Maybee said, one of the biggest challenges with SMS implementation is the administrative side of it. It takes resources and so on to be able to keep that system operating the way it should. One of the things the airports have done is collaborate with the ACI and the CAC on the Canadian airports national audit program.
Those are some of the steps that we're taking to try to minimize the cost and the effort for airports, and to provide consistency among airports on how some of these things are done.