National of the United States
National of the United States means a person who, though not a citizen of the United States, owes permanent allegiance to the United States, and includes a citizen of American Samoa or Swains Island.
49 CFR § 1552.1
Scope. This subpart applies to flight schools that provide instruction under 49 U.S.C. Subtitle VII, Part A, in the operation of aircraft or aircraft simulators, and individuals who apply to obtain such instruction or who receive such instruction.