U.S. Citizenship and Immigration Services (USCIS) is centralizing initial processing of applications for naturalization (Form-400) at its National Benefits Center in Missouri in an effort to cut down on processing time. This, however, will not reflect on where the application is being filed. As it is currently done, applicants will continue to file their Form-400 with the USCIS Service Center which has jurisdiction over their place of residence.
USCIS will transfer the applications to the NBC for initial processing and send the applicants a notice of the transfer. Applicants will also be notified as to how they can contact the processing center and check up on processing times etc. Any application mailed directly to the NBC will be returned by USCIS.