Finance committee  That's an important consideration. The other important consideration is that the one number I could give for the end of this fiscal planning period for 2023-24 is not a mature cost estimate, because it will basically take time. This is only for options granted on or after January 1, 2020.

Finance committee  Thank you. On your question on the revenue impact, if you look at the current fiscal planning period, you will see that the last year is 2023-24. As Andrew explained, since this is something that would apply on a go-forward basis, you're looking at a net revenue increase at the federal level in the range of $10 million in the fiscal year 2023-24.

Finance committee  No, not to residents of Canada.

Finance committee  That's the idea. Another example would be non-residents using Canadian resident trusts as a way to access the principal residence exemption in a way that wasn't intended.

Finance committee  In budget 2017, there was a measure on the disability tax credit to add nurse practitioners to the list. That was legislated as part of the first Budget Implementation Act. What's being added here is an extension of that. There are certain other provisions in the Income Tax Act whereby specified medical practitioners can certify different things.

Finance committee  That's how it works now. The program is administered by the Department of the Environment and Climate Change. It's the minister who has responsibility, so she's responsible for designating on a gift-by-gift basis. If it's donated to a registered charity, such as the Nature Conservancy of Canada, she basically certifies that it meets the purposes and goals of the measure.

Finance committee  The key is that it's a very important measure, the capital gains exemption for principal residences. It's something that had strong support. The idea is to make sure it's being used by the people for whom it's intended—that is, Canadian residents living in principal residences. The idea is to be better able to screen out non-residents who, through certain provisions, have been able to claim the principal residence exemption when that was not intended.

Finance committee  There is a $200,000 lifetime limit.

Finance committee  Actually, I think it's just on the basis of a lifetime limit. We'll follow up on that.

Finance committee  Many eco-gifts go to what are considered qualified donees, so charities, conservancy agencies. There's a process now, just to ensure the integrity of the program, that the Minister of Environment and Climate Change, or supported by her department, basically assesses the claims and makes sure that the gifts, the arrangements, are consistent with the goals of the program.

Finance committee  That's correct.

Finance committee  I think I can tell you that's not part of any of the amendments that are proposed here.

Environment committee  We don't have a precise cost estimate, but here is how we think about it. The $900 million per year that's spent in the U.S. is, in one way, quite similar to what's in Canada, because it's just the 20% credit for designated properties, the $900 million. The 10% non-designated isn't part of the $900 million.

Environment committee  Correct, but that's how we would think about it.

Environment committee  We haven't, because in our mind there is this really important and unanswered question of what is the incremental effect. We would have hoped, given all the experience in the U.S., that there would have been a better answer for this, but we don't see it. We doubt very much the effect is zero.