我现在准备通过EB2的NIW申请绿卡，现在排期到2008年5月，有5年的排期。我孩子今年17岁，如果以排期到的时间算的话。到时我孩子都超过了21岁。如果以递交I-485申请日期算的话，我孩子还能赶上。请问两位老师，是以哪个时间点计算？谢谢！！！
-Child's CSPA age = the child's actual age when the priority date is current - your I-140 pending time. If the CSPA age is less than 21, then your child can file I-485 together with your I-485 filing or after you file your I-485. When your child file I-485, his/her I-485 is safe (the age will not affect the I-485 anymore). So, the longer your I-140 pending, the better for your child's to file I-485.
8老师，非常感谢您的回答。我还有点不是很清楚，我I-140批下来后就可以给我孩子file I-485吗？
-No.
是不是要等到排期到才能file I-485？
-Yes.
这个priority date（排期）是从什么开始算？
-The date your file your NIW-140 (USCIS receive it).
根据您回答的内容，只要开始我的priority date的时候，我孩子小于21岁就可以吗？
-No. Read my previous response above (read color worlds). When your priority date is current, just calculate your child CSPA age. If the CSPA age is less than 21, he/she can file I-485 with yours to get the green card. But if the CSPA age is > 21, he/she can not file I-485 with yours.
非常感谢
