In order for employers to hire a Temporary Foreign Worker (TFW) and to obtain a Canadian Work Permit, it usually require a Labour Market Impact Assessment (LMIA). A Labor Market Impact Assessment (LMIA) is a document that an employer in Canada need to get before hiring a foreign worker. It is a proof that there is a need for a foreign worker to fill the job and the employer was not able to find a Canadian worker or permanent resident to perform the duties required by the job.