我媽下周二回國，突然發現綠卡找不到了。翻舊帖好像說是可以去uscis在護照上蓋個章？
那麽要先申請I-90還是先去蓋章？
-Yes. Bring the I-90 filing receipt notice for the green card stamp (you may file I-90 online and get the receipt immediately by printing it out).
另外她回國要三個多月，如果申請I-90了她人在國內時候打指紋的通知來了怎麽辦？
-You can reschedule the fingerprinting for her after you receive the appointment notice.
幫她申請延期？還是先去蓋章，等回來以後再申請I-90補辦？
另外去uscis是需要預約infopass嗎？剛查了一下local office接下來兩周都沒有available appointment，可以直接去嗎？
萬分感謝！！
