That's not my understanding of the approach. Again, the approach is to work with the National Research Council and the federal, provincial and territorial community and stakeholders on establishing a retrofit code, which will then establish a floor for retrofits where they're done. But it's up to provinces and territories to implement. It's not tied to the sale of homes; it's on establishing a basis for improving energy efficiency through a retrofit.
On November 2nd, 2017. See this statement in context.