In Québec, there are two official documents that can be used as proof of death:
To obtain either of these documents
Complete the form entitled Death: Request for Certificate or Copy of Act and submit it to the Directeur de l'État civil. You can apply online.
Note
Proof of death is established by the Act of Death. Only the documents issued by Directeur de l’état civil are legally recognized. It is your responsibility to find out which type of document and which format you require.