回复：８老师，拿到绿卡后还需要保存什么文件

请问，有关以前身份的文件，例如十多年前的I２０，所有H１B的元件，EAD卡，申请H１B和绿卡准备资料的复印件，我还全留着呢。在拿到绿卡后，现在要搬家了，不知道是不是还应该保留这么一大堆东西。
-You had better keep the green card application documents such as PERM approval (if you have), I-140 approval notice, copy of your I-485, I-485 receipt and I-485 approval notice. Don't need to keep I-20, H-1, EAD, etc. if you don't want to.