Transport Canada must approve the plan before it comes into force. We must approve all proposed plans. We have roughly 900 plans. We review the plans according to risk. The plans are reviewed every two to five years by Transport Canada specialists who undergo training and simulations at our CANUTEC emergency centre to verify the implementation of the plans and to ensure that they conform to what was initially authorized and approved.
On November 25th, 2013. See this statement in context.