10 U.S.C. § 8215
Citizenship of officers of vessels
The officers of vessels of the United States shall in all cases by citizens of the United States.
( Aug. 10, 1956, ch. 1041 , 70A Stat. 376 , § 6019; renumbered § 8215, Pub. L. 115–232, div. A, title VIII, § 807(b)(7) , Aug. 13, 2018 , 132 Stat. 1834 .)