http://www.aircanada.com/en/news/160120.html
Customers who are eligible for Priority Check-in (including our Altitude Elite 35K and Prestige 25K members, as well as select credit card holders) may use new dedicated Priority Check-in counters located in aisle 3 for domestic flights and aisle 5 for international flights.
So are these dedicated counters in the business check-in area or just priority lines in the Y areas?
Interesting that they decided to put PY as part of the J check-in. I would have put that group in the P25K/E35K/credit card group.