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  3. Customers Must Mail Form I-290B for Form N-600 or Form N-600K to the Chicago Lockbox

Customers Must Mail Form I-290B for Form N-600 or Form N-600K to the Chicago Lockbox

Archived Content

The information on this page is out of date. However, some of the content may still be useful, so we have archived the page.

Release Date
12/30/2015

Starting January 1, 2016, customers who wish to file Form I-290B, Notice of Motion or Appeal, in response to a decision on their Form N-600 or N-600K must mail their Form I-290B to the Chicago Lockbox. USCIS will no longer accept these forms at local field offices.

Customers should mail their Form I-290B for Form N-600 or N-600K to:

U.S. Postal ServiceUSPS Express Mail/Courier
USCIS
P.O. Box 805887
Chicago, IL 60680-4120
USCIS
Attn: FBAS
131 S. Dearborn, 3rd Floor
Chicago, IL 60603-5517

USCIS will provide a 30 day grace period from January 1-30, 2016, for customers who file their Form I 290B with the local office. Local field offices who receive Form I-290Bs during this time will forward the forms to the Chicago Lockbox.

After January 30, 2016, local field offices will return all Form I-290Bs for Forms N-600 or N-600K they receive and advise customers to file at the Chicago Lockbox.

Last Reviewed/Updated:
12/30/2015
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