Thank you for that question.
What does happen--and it's tied into the previous question--is that in the course of the Treasury Board regulations, you have to take a break. You'll hear folks who are in class B service say they are on their break period. During that point in time, they are not paid. During that point in time, they are actually not entitled to any benefits from the Canadian Forces, including medical benefits. They are actually out of the forces for that break, in accordance with that policy. That break takes them up to a year. So you end up losing these folks on class B throughout the year for this break in accordance with the Treasury Board regulations.
It is regulation that everyone has to have a break time. If you do not, it automatically pops up in the system that you have not had your break. Plus in many cases it gives you some time to get off on some leave.