My Green Card and SSN were sent to my old address and forwarded by my landlord, but now they seem lost in the mail. At what point should I stop waiting for USPS or USCIS to find them and just file an I-90 for a replacement?
Do not wait 90 days: if the landlord’s forwarding is already seven days old, start the USPS Missing Mail Search and file the lost‑card I‑90 now; day seven is USPS’s search threshold, not a legal bar to filing I‑90 sooner.
You are dealing with two lost documents, not one combined replacement process. You can start the Green Card replacement and USPS search together, then handle the SSN card separately with SSA.












