The address is here

來源: 於 2007-06-29 07:00:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

When mailing the I-140/I-485 package via express mail (DHL, FedEx, etc.), the following street address should be used:
USCIS Nebraska Service Center
850 S Street
ATTENTION: I-140/I-485 Section
Lincoln, NE 68508
Tel. 1-800-375-5283