I'll put a couple of points out there. We go through risk assessment when it is as simple as a change to an operating procedure to something as broad as taking on a new destination. There would be varying levels, obviously, of the complexity of the risk assessment that would have to be conducted.
Evidence of meeting #30 for Transport, Infrastructure and Communities in the 41st Parliament, 2nd session. (The original version is on Parliament’s site, as are the minutes.) The winning word was sms.
A video is available from Parliament.