Yes. One basic example is in the City of Toronto. When a rental building is demolished, rental replacement policies require that the affordable rental units in that prior building be rebuilt in the new building and that they be affordable for 10 years. That produces an affordable unit for 10 years. We often find at the end of that 10 years, as units turn over, that those rents are increased to above market rents. There is an idea that we're producing affordable units, but they disappear at 10 years.
In the U.S., they've experienced crises of funding hundreds of thousands of affordable units that had 20-year affordability periods, and then when those periods end, they are gone.
It's very important that when funding is going to a project that the affordability requirements be long term—the life of a person. Someone needs to live there. The affordable housing should be there past that tenant so that it's available to future members of that community. We advocate for 49 years of affordability, which is a very long-term period.