I can answer by saying that Nova Scotia, Alberta and B.C. follow a standard that is obedience-based. Their certification or testing for that is about 45 minutes to an hour long, from the people I've spoken to who have gone through it, and there appears to be no mental health component on their side of things.
New Brunswick follows the disabilities act, and as long as your dog is functioning within that, they're supportive of service dogs in that province.
In Ontario, Saskatchewan, Manitoba, the Territories and Yukon, from what I understand, we are putting forward an idea to the Saskatchewan government for what we believe is an open, attainable standard for service dogs. I understand MSAR is working with the Manitoba government. I'm not sure what's going on in Ontario right now, because there are a number of varying interests there.