plocsek Pardon my being an old stuffed shirt, but there is no such thing in Canada as an ATR.
I've heard this reference misused over the years, so in an attempt to help you out I would simply say this, we have an Airline Transport Pilot Licence, or ATPL. But, you don't need an ATPL to get a TR.
The ATR term in this country is a misnomer and most are probably more familiar with the term Type Rating, which is attached to your CPL or ATPL. You can do the TR in either the Left seat or Right seat. Check the conditions.
Using this ATR reference around the wrong place could send you off on a wild goose chase when it comes to finding out where you can get a type rating if the respondent is unfamiliar with this ATR reference. There's a difference.
You can self-sponsor a Type Rating at several places here in Canada. I'd suggest CAE or Flight Safety as none of the airlines here appear to be offering off-the-street training for single person Type Ratings. It's a big hassle and they usually don't have the time available in their sims anyway.
Check it out and best of luck. You don't need an ATR to get a type rating on your CPL.
Best of luck,
Willie