Of course. Every year, we give employers training and information about the practices they have to adopt and about employment contracts. This is extremely well documented and monitored by Service Canada, by the consulates, and by FERME. There is a lot of oversight and the Temporary Foreign Workers Program is monitored very closely.
Evidence of meeting #29 for Citizenship and Immigration in the 39th Parliament, 2nd session. (The original version is on Parliament’s site, as are the minutes.) The winning word was occupational.