The United States District Court for the Northern District of Oklahoma does not issue replacement naturalization certificates. It can only provide a certified Proof of Citizenship letter if the requester were naturalized as an adult in the Northern District of Oklahoma Court in the period 1996 to the present. If you need a replacement certificate, you must contact the United States Citizenship and Immigration Services (USCIS) directly.
To request an actual replacement certification, contact the USCIS online (www.uscis.gov) or call 1‑800‑375‑5283 Call Center or 1‑800‑870‑3676 to request forms.
Name Change Order
For people naturalized as adults for that same period, the Court can provide a certified copy of a name change order.