Thank you for your question.
The process we have had in place since 2007 is based on a five-year planning system. We are still talking about a project that will go to 2025, when all the buildings will be ready, but we have divided that into five-year blocks. For each of those five-year blocks, we work together with our colleagues from the House of Commons, the Senate, the national capital region and others in order to determine what projects will be planned or carried out in those five years. That also enables us to make sure that costs will be reviewed and that we will be able to respect our estimates.
We have teams of architect-engineers working with us internally; they are our staff. We also have consulting teams that prepare plans and specifications. Those consultants are also responsible for preparing estimates; so we double-check everything. We have also hired a third party that reviews all the evaluations or estimates for the projects. So we have the main architect for the project, we have the internal teams and we have a third party that reviews the estimates afterwards.
I should also mention that we have some leeway for our projects, given that they are complex. We have the means to deal with contingencies, to deal with the unexpected. We might use that leeway or not, depending on the complexity of the project or the surprises that come up on site.