USCIS published a notice announcing the revision of its Direct Mail Program so that certain filings of Form N-400, Application for Naturalization, will now be filed at a designated lockbox facility instead of a USCIS Service Center.
During the first 30 days after this notice takes affect, USCIS will forward incorrectly addressed Form N-400s to the proper address, rather than reject it. USCIS will forward any improperly addressed Form N-400s covered by this notice as follows:
Any Form N-400 from non-Armed Forces applicants will be forwarded to either the Dallas or Phoenix lockbox facilities.