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In an effort to keep the USCIS website current, the archive contains content that is five years and older or otherwise outdated.

Update to Form N-400, Application for Naturalization

New edition dated 04/05/2010. Editions 01/22/09, 10/15/07, 07/30/07, 11/01/06, 05/31/01 can also be used. No other editions accepted.

Last Reviewed/Updated: 05/05/2010