8 U.S.C.§ 1421 ("Naturalization authority"); 8 U.S.C.§ 1447(a) ("Request for hearing before immigration officer."); 8 U.S.C.§ 1101(18) ("The term 'immigration officer' means any employee or class of employees of ... the United States designated by the Attorney General, individually or by regulation, to perform the functions of an immigration officer specified by this chapter or any section of this title.").
8 U.S.C.§ 1229a(c)(1)(A) ("At the conclusion of the proceeding the immigration judge shall decide whether an alien is removable from the United States."); see also Matter of Falodun, 27 I&N Dec. 52 (BIA 2017).
8 U.S.C.§ 1101(22) ("The term 'national of the United States' means (A) a citizen of the United States, or (B) a person who, though not a citizen of the United States, owes permanent allegiance to the United States." (emphasis added); Black's Law Dictionary at p.87 (9th ed., 2009) (defining the term "permanent allegiance" as "[t]he lasting allegiance owed to a state by its citizens or[permanent resident]s.") (emphasis added).
ecfr.gov
8 CFR1003.14 ("Jurisdiction and commencement of proceedings").
8 U.S.C.§ 1229a(c)(1)(A) ("At the conclusion of the proceeding the immigration judge shall decide whether an alien is removable from the United States."); see also Matter of Falodun, 27 I&N Dec. 52 (BIA 2017).