Air Canada introduced (or maybe rather copied from the US carriers) Altitude Qualifying Dollars back in November (read more here).
Unlike with United Airlines and Delta that waive this requirement for members outside of the US, Air Canada didn’t have a waiver in place until now.
You can access Air Canada’s web page for this Altitude Qualifying Dollars here.
Altitude members residing outside of Canada have their AQD requirement reduced by 50%:
For non-Canadian residents, the Altitude Qualifying Dollars (AQD) will be 50% lower than the published amounts found in the chart above. Proof of address may be requested in order to apply non-Canadian resident AQD requirements. For eligible members, the AQD tracker at altitude.aircanada.com will be updated to reflect these new lowered requirements by March 1, 2016.
Air Canada calculates the AQD only for tickets issues on Air Canada ticket stock and marketed by Air Canada even when operated by other Star Alliance airlines and flights operated by Air Canada including when those flights are ticketed on non-Air Canada ticket stock.
Having a waiver in place for those not residing in Canada makes sense. They probably realized that this would have thinned the number of Air Canada elite members not residing in Canada a lot making them to choose to fly the airline less in the future.