Yes. Every CPA in Canada, by virtue of belonging to a provincial institute, is subject to a code of conduct, which is quite strict. It's in terms of behaviours and expectations of CPAs. CPAs, like all Canadians, are expected to abide by the law. Also, they're expected to abide by the code of conduct to make sure that they don't get involved with, say, tax evasion. That's a criminal act. You cannot be a CPA and do that.
On June 15th, 2021. See this statement in context.