N-426, Request for Certification of Military or Naval Service

This form is used by an applicant for naturalization to request that the Department of Defense verify the applicant's military or naval service.

Number of Pages

Form 4; Instructions 3.

Edition Date

09/16/19. You can find the edition date at the bottom of the page on the form and instructions. 

Dates are listed in mm/dd/yy format.

Where to File

Return the form to the office which requested the certification.

Don’t forget to sign your form! We will reject any unsigned form.

Filing Fee

$0

Special Instructions

Please read the instructions carefully and review the Supplemental provided here (PDF, 142 KB) to help you complete the form. If relevant, please see our M-599, Naturalization Information for Military Personnel (PDF, 252 KB) brochure. 

If you are claiming eligibility for naturalization based on your service in the U.S. armed forces, you must submit a signed and certified Form N-426 with your Form N-400, Application for Naturalization. Only military personnel serving in pay grade O-6 or above and equivalent civilian personnel (GS-15 or above) with proper authorization may certify Form N-426. 

If you previously served in the U.S. armed forces, you must submit a copy of your DD Form 214, Certificate of Release or Discharge from Active Duty, NGB Form 22, National Guard Report of Separation and Record of Service, or equivalent discharge document, for any periods of service you have completed. You may submit an uncertified Form N-426 as long as the DD-214, NGB-22, or equivalent document covers all applicable periods of service and lists the type of separation and character of service.

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