It's a big challenge. If you talk to the provincial government side of the equation, they will tell you that they have fixed labour mobility and that labour mobility is not an issue. However, when you talk to the individuals who are affected by it—because the colleges that exist in each province do have restrictions—you find that it's still a big challenge in many areas of the country.
I don't know what the answer is there. I would think that these particular colleges would have some provincial oversight over them and that maybe the provinces could do more to encourage them to be a bit more loose in how they dictate who can work and who cannot in those particular professions.
That's probably where the biggest challenge rests right now—on interprovincial mobility of labour in Canada.