I mailed my I-485 to "USCIS P.O. Box 805887 Chicago, IL 60680-4120" and used USPS Express mail for that.
I'm checking my delivery status and it says that a notice was left so someone is supposed to pick up the stuff.
My question is, will USCIS pick up my package or there is no one there to serve the P.O.Box?
Should I have used regular USPS mail or express is fine?
The instruction for the addresses is unclear because USPS can be also express.
The USCIS Chicago Lockbox:
For U.S. Postal Service:
P.O. Box 804625
Chicago, IL 60680-4107
For Express mail and courier deliveries:
131 South Dearborn-3rd Floor
Chicago, IL 60603-5517
Edited by Dob3rman, 06 January 2011 - 12:44 PM.