A21. Yes.,,,,,,,,,,,,,,,,,,回複：請問485交後但還沒有收到RECEIPT前可否申請AP???

Q21: Will USCIS permit applicants who filed adjustment applications between July 2, 2007 – July 17, 2007, but who have not yet received a USCIS generated receipt notice, to file for Advance Parole and Employment Authorization based on proof of delivery of the I-485 application?
A21. Yes.