8老師：
感謝您的回複。我的情況是這樣的，從我已經批準的485的i797看，PDdate寫的是2015年的8月，即之前批準的EB2的PD日期，而不是我用於申請485的EB1的PD日期。我之前也聽說USCIS會自動把PD date聯到最之前申請的一個140上。原文是
https://www.hg.org/legal-articles/retention-of-i-140-priority-date-for-a-subsequent-employment-based-petition-36707
請您幫忙看一下。
如果是這樣，我的配偶在用我的EB1進行follow to join時，能享受這個更早的優先日期嗎？
-Technically, you need to request the priority date portability from the old I-140 to the new I-140 by writing though sometimes USCIS may do it for you even if you do not request it. You need to check the EB1 I-140 approval notice to see whether the priority date in EB1 I-140 is the same as the priority date in EB2 I-140. If yes, then your spouse has no problem to use it to file I-485. But if it is not the same as the one in EB2 I-140, probably USCIS may feel confused and thus, reject your spouse's I-485 if she files it based on the EB2 I-140 priority date. Your spouse needs to provide the copies of your green card (both sides), your I-485 approval notice, and the EB1 I-140 approval notice with her I-485 filing.
