To clarify this, when you say Canadian workers, we currently have a situation where some Canadian-trained workers need to go through a different process when they want to work in a different province. Teachers are a good example. Canadian-trained teachers' qualifications aren't necessarily recognized from province to province, but my understanding of what you're saying is that for people who have their foreign credentials recognized, this will not apply to them once they are credentialed in one province.
On October 6th, 2011. See this statement in context.