An applicant for visa who is otherwise inadmissible but have a reason to travel to Canada that is justified in the circumstances, may be issued a temporary resident permit.
To be eligible for a temporary resident permit, your need to enter or stay in Canada must outweigh the health or safety risks to Canadian society, as determined by an immigration or a border services officer. Even if the reason you are inadmissible seems minor, you must demonstrate that your visit is justified.
There is no guarantee that you will be issued a temporary resident permit. If you would like to receive a permit, you will have to pay a processing fee, which is not refundable. A permit is usually issued for the length of your visit to Canada—for example, one week to attend a conference. You must leave Canada by the expiry date of the permit, or get a new permit before your current one expires.
Please note that this permit may be cancelled by an officer at any time. The permit is no longer valid once you leave Canada, unless you have specifically been authorized to leave and re-enter.