The changes are meant to ensure that Canadians are given the first chance at available jobs.  The new changes are as follows:

1.   Employers looking to hire a TFW must pay a processing fee of $275 for each position requested to cover the cost of a Labour Market Opinion (LMO).  There will be no refund in the event of a negative LMO or if the LMO application is withdrawn or cancelled.

2.  New subsection 203(1.01) of the Immigration and Refugee Protection Regulations makes English and French the only languages that can be identified as a job requirement, both in LMO requests and in advertisements by employers, unless employer can show that another language is essential for the job.

On-farm positions (NOC codes 8251, 8252, 8253, 8254, 8256, 8431, 8432 and 8611) under the Seasonal Agricultural Worker Program or the Agriculture Stream, are exempted from the language restriction.

3.  Employers must advertise for at least 4 weeks in 3 separate sources before applying for an LMO.  For high-skilled occupations, one advertisement must be national in scope.  For lower-skilled occupations, employers must demonstrate effort to target under-represented groups in the work force.

The above requirements do not apply to Live-in Caregiver Program, on-farm positions mentioned above, Seasonal Agricultural Worker Program and the Agricultural Stream.

4.  New questions in the LMO applications are introduced to evaluate the impact of hiring a TFW on Canada’s job market.  A negative LMO will be issues if an assessment indicates a negative impact.

Source:  http://www.hrsdc.gc.ca/eng/jobs/foreign_workers/changes.shtml