Thanks for the information. I am planning to use Fedex as well, but am confused about the customs declaration. Would greatly appreciate it if someone could tell me if I need to send any extra customs declaration / forms along with the return label/envelope? Really worried that it might get stuck at Customs, so would greatly appreciate it if someone with prior experience could help me understand this. Thank you very much!MidoRafa said:As of late 2016, they accept non-Canada Post labels/envelopes. I personally included a prepaid FedEx envelope+label and they used that to return the passport