Fatigue management mostly relates to train and engine crews in particular in our industry, so I'll keep my remarks there. There's a rule and a set of implementation guidelines around that rule that's I think two or so years old now. I might not be quite right on that date. The industry worked very closely with the unions and with Transport Canada to put this in place. The way we protect against violation of that rule—and it does cover exactly what you asked, the number of hours per day, the number of days per week, the amount of rest between shifts, and so on—it's programmed into our crew-calling system. So if an employee is not available, based on potentially violating any one of those rules, they will not be presented to be called for work for that train or for that yard assignment. That's the protection.
Fatigue management is a very significant issue in our industry. We think the panel members did a very good job of identifying the relationship and the interplay between fatigue management science and what we would all like to do, as it then starts to get involved with collective bargaining issues. What train or what assignment someone gets called for will tell us what that person is going to be doing when and how much they're going to get paid, so suddenly the collective agreement starts to get involved.
One of the key things we can do for fatigue management overall is scheduling. The more employees are scheduled, the more they know when they're going to work, the better they can plan their rest strategies and so on, taking out some of the surprises that unfortunately we get now. We've been very successful with scheduling in our U.S. operations, and a high percentage of our train and engine crews are scheduled. It's moderately successful in eastern Canada, and there's still more work to do. Scheduling is less successful in western Canada, which has more to do with the nature of the operation. There are more unscheduled movements of coal, grains, sulphur, potash, and things of this nature, that don't run on a particular schedule.