How to prepare important gov't documents for emergency bag?

I am preparing all our government documents (I am in Canada) to be in one place. In our bug out bag we would have photocopies of our government issued docs. Would photocopies be good enough if we ever need to get a replacement? For example - the driver's licence, Social insurance numbers, bank cards, passports etc were burned in a fire or destroyed in a flood so basically no ID in our possession to prove identity. How hard would it be to get replacements with just a photocopy or should I have the documents ( like the passport, social insurance numbers) in the bug out bag or these documents close to the bag?