Thank you for the question.
Basically, as I've already mentioned, we are talking about 2019 in the study. Right now, our objective is to determine which options would enable us to proceed as quickly as possible with Centre Block. The report talks about the total failure of Centre Block. The mechanical and electrical systems have come to the end of their useful life. In 1994-1995, we repaired a significant part of the building's facade because the stone was in poor condition. But there are still other components that need to be rehabilitated.
If you look at the building, you can see that the ventilation shafts are connected with pieces of wood. We are in the process of drawing up plans and estimates with consultants to correct that. The current House of Commons has large windows, but they are becoming unstable. One piece has already fallen out, and we had to install a safety net in front of those windows. It is certainly less interesting, visually. But for health and safety, it's a protective measure.
A good number of these systems are coming to the end of their life, but we are maintaining them. At one point, the money invested will be money wasted because the systems—the mechanical systems, especially—will be at the end of their useful life. We will not be able to install a series of small systems in each room. We will have to rethink the whole. Starting in 2019, we will really have to work on that.