16 U.S.C. § 410qq3 - Native American Samoan defined

For purposes of this subchapter the term native American Samoan means a person who is a citizen or national of the United States and who is a lineal descendant of an inhabitant of the Samoan Islands on April 18, 1900. For purposes of this subchapter, Swains Island shall be considered part of the Samoan Islands.