Naturalization is the process by which United States citizenship is conferred upon a foreign citizen or foreign national after he or she fulfills the requirements established by Congress in the Immigration and Nationality Act.
The bureau of U.S. Citizenship and Immigration Services (“USCIS”)  processes all naturalization applications and provides the Court with a list of the candidates selected to be naturalized.
To Apply for Naturalization
The USCIS should be contacted directly for procedures on becoming naturalized. Visit the USCIS website  or call (800) 375-5283 for answers to common questions, application forms and general information about the USCIS.
After all requirements of the USCIS have been satisfied, the USCIS will send an applicant written notice of the location, date and time to report to a naturalization ceremony.
Please do not contact the court regarding your naturalization ceremony. Questions should be directed to the USCIS  at (800) 375-5283.
The Naturalization Ceremony
For naturalization ceremonies in the Central District of California, please click here  for a current ceremony schedule (note: dates and times are subject to change).
All individuals entering Federal Court facilities and naturalization ceremonies are required to pass through a magnetometer and have all belongings and packages subject to physical and/or x-ray examination similar to security screening at airports. Firearms, knives, explosives, and other weapons are prohibited and subject to confiscation. When reporting for a naturalization ceremony, please plan your arrival time accordingly.
Applicants and guests are separated during the arrival process. Therefore, it is recommended that you designate a specific location to meet after the ceremony. At the conclusion of the ceremony, all guests are dismissed prior to the final processing step of the new citizens.
For applicants who experience difficulty with walking, it is strongly recommended that they bring a wheelchair. The in-processing and out-processing of applicants involves a great deal of walking, standing and waiting. It is also recommended that applicants needing any other assistance be accompanied by one escort. While it is necessary to separate applicants from guests, it is permissible for an escort to remain with an applicant with special needs throughout the ceremony.
Please remain quiet during the proceedings. If you must leave during the ceremony, please exit quietly.
The ceremony size varies between 600 to 5,000 applicants plus their guests.
Replacing a Certificate of Naturalization
The Court is unable to provide a copy of your naturalization certificate or any other documentation that certifies your citizenship. To obtain a replacement of your naturalization certificate, please follow the instructions found here at www.uscis.gov/n-565  or call (800) 375-5283 for additional details.
Letter of Verification of Naturalization
For emergency travel only, the Court will issue a Letter of Verification so that you may obtain a temporary passport, only if you were naturalized before October 1994. This letter is offered during Clerk’s Office hours 9:00 a.m. to 4:00 p.m., Monday through Friday (except Tuesdays and federal holidays).
In order to qualify for this verification letter, you must provide all of the following items (no exceptions):
- Airline tickets (no faxes, copies, letters, emails or itineraries accepted).
- Receipt from USCIS showing Form N-565 Application for Replacement Naturalization/Citizenship Document was paid in full. Contact USCIS at www.uscis.gov/n-565  or (800) 375-5283 for instructions on how to submit a request.
- A completed USDC Form F-22 and a payment of $31.00 to the U.S. District Court for processing.
You must have been over the age of 18 at the time of naturalization and you must have been naturalized through this court.
Naturalization records after October 1994 are maintained by the USCIS. Contact USCIS at www.uscis.gov  or (800) 375-5283 for additional information.