他给我看了绿卡照片，Category下面的确是I-51，就是投资移民EB5那种，有效期是2年。
-OK. I-51 is the conditional green card category (code) which is different from the permanent green card category. So, after he gets the permanent green card, the category will be changed to E51.
我不明白的问题是：他去掉条件后的绿卡Category是I-51还是EB-5，他说是EB-5,我认为是I-51。
-EB-1, EB-2, EB-3, EB-4, and EB-5 are the immigrant petition category, not green card category. A person needs to be the benefiicary of an approved immigrant petition (e.g, EB-5 in his case), then that person can get the green card. He was the beneficary of the approved EB-5 petition, then he got the conditional green card (I-51).
So, I-51 will not become EB-5 category.
