A valid PR card is the only proof of permanent residence status in Canada. The following documents are indicators of permanent resident status in Canada:

·Original Record of Landing (IMM1000)
·A certified true copy of a Record of Landing issued by the Immigration, Refugees and Citizenship Canada (IRCC) National Headquarters
·A letter issued by IRCC National Headquarters verifying permanent residence
·A passport duly stamped, showing the date on which permanent resident status was granted if the person was granted permanent resident status before 1973
·A Confirmation of Permanent Residence document (IMM5292B)
Section A19 (2) of the IRPA states that "an officer shall allow a permanent resident to enter Canada if satisfied following an examination on their entry that they have that status". It is recommended, but not mandatory, to have your PR card in your possession to prove your permanent resident status in Canada at the border. You must be able to satisfy the BSO at the port of entry that you are a permanent resident of Canada. This may be accomplished with supporting documentation, including those documents mentioned above, database checks conducted by the officer, and responding truthfully to all questions asked to you by the BSO.

If you’re outside Canada and don’t have a valid PR card, you need a permanent resident travel document (PRTD) to return to Canada. You can only apply for a PRTD from outside Canada.