I think you're on the wrong track. I said that one of the models considered would allow airports to have different prices. There was no discussion about the possibility of having different prices at different airports. This may be part of the negotiations, I don't know, but it's not the case at the moment.
What the legislation would allow CATSA to do is to provide services on demand at some small regional airports. If this were the case, these services would be billed according to a method to be determined. In any case, this could be too expensive for small airports, given their customer volumes.
Unless I'm mistaken.