If you're Canadian take an hour or so and read through the entire document in the link maxpower posted.
Lots of "need to know" info there including rules, cost of tests, penalties, definitions, etc.
A couple of rules that got my attention are than we now (as of June 1st, 2019) have to log all our flights and keep for 12 months from date of flight and we must have a copy of the manufacturer's operations manual on hand when we fly (see the document for details).
I saved the doc as a pdf for later review.