I guess that leads me to my other question.
Mr. McDonald, you said you don't give a form for safety management systems. I understand that; it makes perfect sense that there's not a form where one checks boxes, etc., but coming back to what Mr. Bourdon was just saying, there's obviously a need for consistency within that. How do you, without having the form aspect of it, follow up and make sure there is consistency from one company to another, that they are doing the same things within that safety management system and we're having the same outcomes?