USCIS maintains historical records documenting the arrival and naturalization of millions of immigrants who arrived in the United States since the late 1800s or/and naturalized between 1906 and 1956.

The USCIS Genealogy Program offers two services:

Index Search: Using biographical information provided by the researcher, USCIS searches its historical immigration and naturalization record indices for citations related to a specific immigrant. Search results (record citations) are returned to the researcher, along with instructions on how to request the file(s) from USCIS or the National Archives. Fee: $20.00.

Record Copy Request: Researchers with valid record citations (USCIS file numbers), gained through a USCIS Genealogy Program index search or through independent research, may request copies of historical immigration and naturalization records. Fee: $20.00/$35.00 (depending on the record type).

Records available through the USCIS Genealogy Program:

  • Naturalization Certificate Files (C-files) from September 27, 1906 to April 1, 1956;
  • Alien Registration Forms from August 1, 1940 to March 31, 1944;
  • Visa files from July 1, 1924 to March 31, 1944;
  • Registry Files from March 2, 1929 to March 31, 1944;
  • Alien Files (A-files) numbered below 8 million (A8000000) and documents therein dated prior to May 1, 1951.

Individuals may submit genealogy records requests by using the new forms, G-1041 - Genealogy Index Search Request, and G-1041A - Genealogy Records Request. Both forms are available on the new USCIS Genealogy Program page at: The fees include:

  • Genealogy Index Search - $20
  • Copy of a File on Microfilm - $20
  • Copy of a Textual File Copy - $35.