We'll look at previous years. Some programs, by their nature, change. For instance, veterans programs changed last year. There were emerging issues with increased take-up due to post-traumatic stress. It is hard to project those things. Other things are very easy to project. You should be able to project your salary costs. That's kind of steady state-type stuff.
We have what I call the serial lapsers. We have a few departments that lapse big dollars on an ongoing basis. Infrastructure Canada, as the member highlighted, is number one. To spend money, they have to negotiate agreements with provinces, territories, and municipalities, so they're taking an estimate at the beginning of the year on how many agreements they might be able to negotiate. They have to get cover in case they all come to fruition, but the reality is that negotiations typically take longer.
It's the same thing with Aboriginal Affairs. When you're into negotiations of land claim agreements and some settlements, they're projecting what might happen. Frankly, they have to project the worst-case scenario because it's illegal to overspend.
The third one you mentioned, National Defence, is usually around procurement. Defence procurement is a very complex area. Again, they have to assume, I guess we'll call it best-case scenario, in terms of how many contracts they can let and how much equipment they can buy. Historically, it takes longer than expected.
The big ones are normal, and I would call them serial lapsers. The same ones pop up every year.
The final one I would flag for you, because it's a little more complicated, is that Treasury Board Secretariat as a department manages things called central votes, where we're holding money for other departments. There are things that allow them to carry a certain amount of their operating budget forward, a certain amount of their capital budget forward. Those dollars lapse every year as well, and that's quite normal. Where you should look is where you have a department that normally doesn't lapse dollars in a program but all of a sudden lapses significant dollars. You can ask why that is. That's where I like to look; it's where they've changed.
The ones here that you've highlighted are quite normal in terms of lapses.