airplane or at sea, difficulties can arise. The place of birth of such a person depends on the law of the countries involved, which include the nationality of the plane or ship, the nationality(-ies) of the parents and/or the location of the plane or ship (if the birth occurs in the territorial waters or airspace of a country). Some administrative forms may request the applicant's "country of birth". It is important to determine from the requester whether the information requested refers to the applicant's "place of birth" or "nationality at birth". For example, US citizens born abroad who acquire US citizenship at the time of birth, the nationality at birth will be USA (American), while the place of birth would be the country in which the actual birth takes place. Reference list 8 FAM 403.4 Place of Birth Human migration