An open work permit is different from a regular or closed work permit. In this case a worker is not required to work for a particular employer rather he can opt to work for any employer apart from the ones that are listed ineligible.The applicant doesn’t need to have an offer of employment or a positive Labour Market Impact Assessment (LMIA).
You may be eligible for an open work permit if you:
In some cases,spouses and common-law partners of foreign nationals may be able to apply for an open work permit which allows him or her to accept any job with any employer.
Your spouse or common-law partner may be eligible for an open work permit if you:
Graduates of Canadian post-secondary institutions are eligible for a one-time post-graduation work permit after completing their studies. These open work permits grant work authorization to international students, allowing them to gain valuable Canadian work experience that may be used as part of a later application for Permanent Residency.
Skilled Canadian work experience in National Occupational Classification (NOC) skill type 0 or skill level A or B that is gained through the PGWPP helps graduates qualify for permanent residence in Canada through the Canadian experience class within Express Entry.
You must have studied at least for 8 month but less than 2 years in the designated Institute. For example if you have studied for say 16 months (which is more than 8 months) then you will be eligible for an open work permit for 16 months and if you did your study for 24 months or more then you are eligible for an Open Work Permit of 3 years.
Few more clarification:
Contact us for further information regarding the procedures for application under this stream.