[Pete]

1. Children who live with their U.S. parents abroad but who did not acquire citizenship at birth, including infants and children adopted overseas.

2. Children born of non-U.S. citizens who are adopted by U.S. citizens.

3. Those whose parents became U.S. citizens after the child's birth.

4. U.S. citizens who do not meet the residence or physical presence rules needed to transmit birthright citizenship, such as a person born overseas with birthright citizenship who never lived in the United States.