• Form N-600 (269 KB PDF)
• Instructions for Form N-600 (100 KB PDF)
• Form G-1145, E-Notification of Application/Petition Acceptance (239 KB PDF)

Purpose of Form

This form is an application for a Certificate of Citizenship.

Number of Pages

Form 9; Instructions 9

Edition Date

12/16/12. Previous editions not accepted.

Where to File

Mail your Form N-600 to the USCIS Phoenix Lockbox facility:

U.S. Postal Service (USPS):

USCIS P.O. Box 20100 Phoenix, AZ 85036

USPS Express Mail/Courier:

USCIS Attn: Form N-600 1820 E. Skyharbor Circle S Suite 100 Phoenix, AZ 85034

Filing Fee

$600. See exceptions under “Special Instructions.”

Special Instructions

The fee for most applicants is $600. There are two exceptions:

• The fee is $550 if filing for an adopted child.
• There is no fee if filing for a member or veteran of the U.S. Armed Forces – proof of service required. However, the fee for a child of a veteran or member of the U.S. Armed Forces is the normal $600 fee ($550 if child is adopted).

To ensure your application is accepted, please ensure that you:

• Check only 1 box in Part 1, Information About Your Eligibility. If you check more than one box, we will return your application for correction.
• Pay the correct fee.
• Sign your application in Part 7. A parent completing Form N-600 on behalf of a child younger than 14 years of age can sign in Part 7. If someone prepared the form for you (such as an attorney), they must sign in Part 8.
• Submit required photos: See the Form N-600 instructions for information.

Attorney or representative: You may be represented, at no expense to the U.S. Government, by an attorney or other authorized representative.  Your representative must submit Form G-28, Notice of Entry or Appearance as Attorney or Representative, with your Form N-600.  Your representative may also submit Form G-28 at the time of your interview