First of all, it is not unsupervised. Yes, all of them, from the smallest to the largest, could have a safety management system. However, they are not left to their own devices, completely on their own. Transport Canada is shifting from the inspection of the roots to the inspection of the forest to ensure that it is healthy. Transport Canada must inspect the system to determine if it is operating properly. It must do so regularly and on the basis of risk management. In other words, it will inspect more frequently those companies that present risk factors and less frequently those that have none.
On February 21st, 2007. See this statement in context.