child born outside of united states of one alien and one citizen parent at time of birth; conditions under which citizenship automatically acquired

child born outside of united states of one alien and one citizen parent at time of birth; conditions under which citizenship automatically acquired Sec. 320. (a) A child born outside of the United States, one of whose parents at the time of the child’s birth was an alien and the other of whose parents then was and never thereafter ceased to be a citizen of the United States, shall, if such alien parent is naturalized, become a citizen of the United States, when— (1) such naturalization takes place while such child is under the age of sixteen years; and (2) such child is residing in the United States pursuant to a lawful admission for permanent residence at the time of naturalization or thereafter and begins to reside permanently in the United States while under the age of sixteen years. (b) Subsection (a) of this section shall not apply to an adopted child.