(b) Any person,
(1) whose spouse is
(A) a citizen of the United States,
(B) in the employment of the Government of the United States, or of an American institution of research recognized as such by the Attorney General, or of an American firm or corporation engaged in whole or in part in the development of foreign trade and commerce of the United States, or a subsidiary thereof, or of a public international organization in which the United States participates by treaty or statute, or is authorized to perform the ministerial or priestly functions of a religious denomination having a bona fide organization within the United States, or is engaged solely as a missionary by a religious denomination or by an interdenominational mission organization having a bona fide organization within the United States, and
(C) regularly stationed abroad in such employment, and
(2) who is in the United States at the time of naturalization, and
(3) who declares before the Attorney General in good faith an intention to take up residence within the United States immediately upon the termination of such employment abroad of the citizen spouse, may be naturalized upon compliance with all the requirements of the naturalization laws, except that no prior residence or specified period of physical presence within the United States or within a State or a district of the Service in the United States or proof thereof shall be required.
