Primary Documentation
 Birth Certificate
 Unexpired US Passport
 Certificate of Citizenship
 Certificate of Naturalization
 Copies of Green Card
 Temporary Evidence of Status（in the form of an “ADIT” stamp in a valid passport or on an I-94）
 Civil Marriage Certificate
 Divorce Decree
 Evidence of the name change

Secondary Evidence
 Baptismal certificate, with the seal of church, showing the date and place of birth in the United States and the date of baptism.
 Affidavits sworn by persons who are familiar with the events of birth of the petitioner
 School records (preferably from the first school) showing the date of admission to the school, the child’s date and place of birth, and the names and places of birth of the child’s parents.
 Census records
 Military proof

Proof of the Relationship
 Civil Marriage Certificate
 Extensive documentation regarding customary marriages that the marriage is recognized under the law of the jurisdiction where it occurred.
 Proof of the validity of the marriage
 Birth Certificates of Children born to current marriage
 Household Registration
 Bank Report of the joint usual account or saving account
 The leasing receipt or agreement with the couple as leaseholders
 Vehicle Insurance and Register, making clear the co-ownership of the couple
 Recent pictures taken together (traveling together or others)
 Records proving the persistent relation for a period (phone bills record or letters record)
 Proof of the spouse’s status, such as passport or driving license
 Joint Credit Card Report
 Letters from the employers of both parties, describing the employee’s detailed marriage status and the beneficiary of the company’s interests
 Wedding ceremony or wedding pictures
 Divorce decrees, death certificates, or other documentation evidencing the termination of all prior marriages of both parties

If the applicant got green card through prior marriage, and the termination of the prior marriage was not due to the death of ex-spouse, evidence should be presented to testify that the prior marriage was not intended for immigration.
 Marriage certificate of the prior marriage
 Birth certificates of children born under the previous marriage
 Household registration of children born to prior marriages
 Bank Report of the joint usual account or saving account
 The leasing receipt or agreement with the ex-spouse as co-leaseholder
 Vehicle Insurance and Register, making clear the co-ownership with the ex-spouse
 Pictures taken together with the ex-spouse (traveling together or others)
 Record proving the persistent relation with the ex-spouse for a period (phone bills record or letters record)
 Proof of the ex-spouse’s status, such as passport or driving license
 Joint Credit Card Report
 Letters from the employers of both parties in the prior marriage, describing the employee’s detailed marriage status and the beneficiary of the company’s interests under the name of the employers
 Wedding ceremony or wedding pictures with ex-spouse
 A copy of any divorce decrees, death certificates, or annulment decrees that establish the termination of any prior marriages before this marriage