I would answer that by first explaining that the basis for a safety management system internationally is enshrined within the ICAO standards of recommended practices. Within the various annexes of that document, you will find a requirement for states to include a safety management system as part of their oversight. Some states choose to file a difference with ICAO and indicate that they have not incorporated or promulgated the rules associated with the safety management system, while other states will do so.
What I can tell you is that when I speak, as David and my other colleagues here do, in the international forum, we are approached after our remarks to understand the effectiveness of our safety management system: how you monitor the effectiveness; how you build a safety and a hazard registry that are meaningful not only to your employee group but also to your management and other stakeholders.
I'll leave my remarks at that. Internationally, it varies across the world, but I can tell you very quickly that we within Canada are seen as the gold standard using David's model.