This situation is beyond your control and your status as a study permit holder should not be affected. As a result of the strike, you will:
not face any penalty or enforcement action because you can’t pursue your studies during this time,
be able to work off-campus for up to 20 hours per week if your study permit allows you to work (and also work full-time during regular breaks such as Christmas and reading week), and
still be eligible for the Post-Graduation Work Permit Program.
You must continue to have valid status as a student in Canada to be able to return to class after the labour dispute is resolved. If you need to apply to extend your study permit during the strike, include a letter from the registrar of your designated learning institution that confirms that the strike has stopped you from attending school and pursuing your studies.