Previously there was no way to send prepaid envelope for the
passport return, from Canada, at the time of sending passport to
Buffalo. As, they don't accept FED-EX and other couriers prepaid
envelope. The only way was to send them a prepaid USPS envelope,
which is not available in Canada. It may be possible to buy online
but I am not sure.So, most of the people inside Canda used to get
their passport back by ordinary mail, even not registered.
Recently one of my friends got passport request from Buffalo. I saw
the letter. It advices the people inside Canada for not to send USPS
prepaid envelope rather to send Canada post express prepaid envelope.
Buffalo will post it from the border of Canada by its own
arrangement.Thanks to Buffalo for this arrangement.
Because, sending Passport by ordinary mail is very unsecure and time