Mar 29 2013
USCIS Guides Applicants to Continue Using Current Naturalization Application Form
USCIS is informing all applicants that they should continue using the currently available Form N-400, the Application for Naturalization, until directed otherwise. The current form has an expiration date of March 31, 2013. It should be used past this date, according to USCIS.
USCIS also notes the following additional acceptable editions of Form N-400, with the following edition dates: 06/17/11, 01/18/11, 11/23/10, 04/05/10, 01/15/10 and 01/22/09 may also be accepted.