Now, I'm wondering if I could just piggyback on that, perhaps to Mr. Spencer or Mr. Brousseau.
The second element is, of course, validating the driver. You indicated that you have some 40,000 to 80,000 drivers who are not validated for transporting dangerous goods, notwithstanding the fact that some of the vehicles they would be driving would already have been validated because they met the criteria--I believe they have to have three of the five criteria before they're validated.
What happens in the event that a Canadian driver, not part of your system, comes across the border?