回复：回复：回复：回复：回复：回复：绿卡保持和reentry permit

再问一下朋友：一般入境官员给绿卡持有者警告吗，比如说以后再如此会取消绿卡？一般绿卡持有者如何知道已被警告了要赶紧去办回美证呢？我主要是可能等不了打指纹就得回国，来美时订的回程机票是几个礼拜后

-If it is just oral warning, you may be OK to travel without reentry permit for one more time. But if the CBP officer wrote the warning on your passport or gave some kind of writing warning to you, you have to apply for the reentry permit.