Form G-325C is used to provide biographic and background information of a non-U.S. Citizen to the United States Citizenship and Immigration Services. Form G-325C is for employer-sponsored applications. The information that is provided by the applicant on Form G-325C may be used by other governmental agencies.

Personal background information is required by Form G-325C including applicant's full name, gender, birth date, nationality, A File Number (if applicable), other names used, present spouse information, previous spouse information, applicant's place of residence for previous five years, application's last address outside the United States of more than one year (this information may overlap with applicant's residence of past five years) applicant's employment for previous five years, and applicant's last occupation abroad.

Form G-325C requires applicant's employment information for the previous five years. The applicant must list the present employer first then all previous employers in reverse chronological order. If the applicant was unemployed, self-employed or a homemaker, indicate that information on Form G-325C. It is important that the applicant not leave anything blank. The applicant should list all employers on Form G-325C even if he or she worked in the United States illegally during the five year period.

Line 10 on Form G-325C requires the form to be signed by the applicant in his or her original native script. If the applicant's native alphabet uses non-Roman letters (such as Hindi, Arabic, Japanese, Chinese or Hebrew), the applicant must write his or her name and address in that script.