回复：回复：回复：绿卡收到,一看傻了,性别错了,11月6号的机票回中国,急问怎么办

就是说我直接带我妈拿她绿卡和护照还有出生证明,到USCIS local office他们就会给盖那个章么?

-Yes. Explain the error to the officer and they will stamp your mother's passport.

不用预约什么的么,,,谢谢您啦

-If she has enough time, had better make an appointment by infopass at this website:

https://infopass.uscis.gov/infopass.php If has no time, just walk in. 

还有就是我妈之前收到的AP没用了是吗?

-The AP is invalid.

他们要是和我回国超过6个月怎么办,回

-The stamp is valid for one year.