Chapter 3 - U.S. Citizens at Birth (INA 301 and 309)

A. General Requirements for Acquisition of Citizenship at Birth

A person born in the United States who is subject to the jurisdiction of the United States is a U.S. citizen at birth, to include a child born to a member of an Indian, Eskimo, Aleutian, or other aboriginal tribe. [1]

In general, a person born outside of the United States may acquire citizenship at birth if all of the following requirements are met at the time of the person’s birth:

Until the Act of October 10, 1978, persons who had acquired U.S. citizenship through birth outside of the United States to one U.S. citizen parent had to meet certain physical presence requirements to retain their citizenship. This legislation eliminated retention requirements for persons who were born after October 10, 1952. There may be cases where a person who was born before that date, and therefore subject to the retention requirements, may have failed to retain citizenship. [4]

An officer should determine whether a person acquired citizenship at birth by referring to the applicable statutory provisions and conditions that existed at the time of the person’s birth. These provisions have been modified extensively over the years. [5] In some cases, an officer may need to determine whether an applicant’s parent or grandparent acquired citizenship before the officer can determine whether the applicant acquired citizenship. Officers may request additional evidence needed to establish the U.S. citizenship of the applicant’s parent or grandparent. The following sections provide the current law.

B. Child Born in Wedlock

USCIS must determine whether a child is born in wedlock [6] or out of wedlock at the time of birth in order to determine which citizenship provision is applicable. [7]

USCIS considers a child to be born in wedlock when the legal parents are married to one another at the time of the child’s birth and at least one of the legal parents has a genetic or gestational relationship to the child.

USCIS views post-birth formalization of the legal relationship between a parent and a child as establishing the relationship from the time of the child’s birth. This is because the relevant jurisdiction’s recognition of the legal relationship between the parent and child is based on the circumstances of the child’s conception and birth, including, for example, the existence of a valid surrogacy contract memorializing all parties’ understanding of parental rights pre-conception. This rule applies unless otherwise specified in the law of the relevant jurisdiction or in the applicable court order.

A child born outside the United States acquires U.S. citizenship at birth under INA 301 if at the time of the child’s birth:

The tables below provide examples of different relationships and whether USCIS considers the child to be born in or out of wedlock at the time of birth in each scenario.

In-Wedlock Determinations Sample Scenarios: Legal Genetic and Gestational Mother
Marriage Between [9]… andIn or Out of Wedlock?
Legal genetic and gestational motherLegal genetic fatherIn wedlock
Legal genetic and gestational motherNon-genetic legal mother or fatherIn wedlock
Legal genetic and gestational motherNon-legal mother or fatherOut of wedlock
In-Wedlock Determinations Sample Scenarios: Legal Genetic and Non-Gestational Mother [10]
Marriage Between [11]… andIn or Out of Wedlock?
Legal genetic and non-gestational motherLegal genetic fatherIn wedlock
Legal genetic and non-gestational motherNon-genetic legal mother or fatherIn wedlock
Legal genetic and non-gestational motherLegal gestational motherIn wedlock
Legal genetic and non-gestational motherNon-genetic and non-legal mother or fatherOut of wedlock
In-Wedlock Determinations Sample Scenarios: Legal Gestational Mother
Marriage Between [12]… andIn or Out of Wedlock?
Legal gestational motherLegal genetic mother or fatherIn wedlock
Legal gestational motherNon-genetic legal mother or fatherIn wedlock
Legal gestational motherNon-genetic and non-legal mother or fatherOut of wedlock
In-Wedlock Determinations Sample Scenarios: Legal Genetic Father [13]
Marriage Between [14]… andIn or Out of Wedlock?
Legal genetic fatherLegal genetic mother or legal gestational mother (or both)In wedlock
Legal genetic fatherNon-genetic, non-gestational legal mother or fatherIn wedlock
Legal genetic fatherNon-genetic, non-gestational, and non-legal mother or fatherOut of wedlock
In-Wedlock Determinations: Cases Involving Gestational Carriers [15]
Marriage Between [16]… andIn or Out of Wedlock?
Legal genetic mother or fatherLegal genetic mother or fatherIn wedlock
Legal genetic mother or fatherLegal non-genetic mother or fatherIn wedlock
Legal non-genetic mother or fatherLegal non-genetic mother or fatherOut of wedlock [17]

Parent’s Residence and Physical Presence Requirements

Depending on the law applicable at the time, the U.S. citizen parent(s) also have residency or physical presence requirements in the United States to transmit citizenship to a child. [18] The following table provides the current requirements under INA 301 based on the parents' citizenship.

Residence and Physical Presence Requirements for Parents Before the Child's Birth
Parents' Citizenship StatusResidence or Physical Presence Requirement
Child of Two U.S. Citizen ParentsAt least one parent had resided in the United States or one of its outlying possessions.
Child of a U.S. Citizen Parent and a U.S. Noncitizen NationalThe U.S. citizen parent was physically present in the United States or one of its outlying possessions for a continuous period of at least 1 year.
Child of A U.S. Citizen Parent and Noncitizen Parent who is NOT a U.S. NationalThe U.S. citizen parent was physically present in the United States for at least 5 years, including at least 2 years after 14 years of age. [19]

C. Child Born Out of Wedlock

1. Child of U.S. Citizen Father

General Requirements for Fathers of Children Born Out of Wedlock

The general requirements for acquisition of citizenship at birth [20] for a child born in wedlock also apply to a child born out of wedlock [21] outside of the United States (or one of its outlying possessions) who claims citizenship through a U.S. citizen father. Specifically, the provisions apply in cases where: