A Canadian temporary resident visa is an official document issued by a Canadian visa office. The temporary resident visa is placed in your passport to show that you have met the requirements for admission to Canada as a visitor, student or temporary worker. It does not guarantee your admission to Canada. When you arrive at the point of entry to Canada, an officer from the Canada Border Service Agency will decide if you will be admitted to Canada. A change of circumstances between the time of your application for a temporary resident visa and your arrival in Canada or additional information available could still result in you being refused entry.