I think it would be a little bit difficult when you're in the middle of the evolutionary process necessarily to be too specific speculating on that, Mr. Chair, but I would say that the initial phase was very much a learning one. There was a new type of regulation put in place that's really intended to drill down below the known causes of accidents and the evident issues that are out there, to find root causes and create the safety culture, etc. From the first 10 years or so of putting this in place, we now have a much more rigorous regulation in place. That will be reviewed for its effectiveness over the next few years. We'll be able to judge then whether we've reached a relatively mature stage with the industry or whether there are more requirements, and that will be demonstrated by the effectiveness.
