I would just say that there's a need for ongoing risk analysis of ongoing day-to-day operations, and there's certainly a need when operations change. For example, changes in the carriage of dangerous goods should trigger an SMS-type risk analysis. Changes in routes, changes in going from primarily, say, transporting goods on the Prairies to transporting goods in the mountains, any type of operational or significant change should trigger a risk assessment.
On April 1st, 2014. See this statement in context.