delivered the opinion of the Court.
These cases present, by certificate, the question whether the circuit courts of appeals have jurisdiction to review a decree or order of a federal district court denying the petition of an alien to be admitted to citizenship in the United States.
The existence of the jurisdiction was assumed by this court, without discussion,, in
Ozawa
v.
United States,
The “jurisdiction to naturalize aliens as citizens of the United States ” is conferred by Act of June 29, 1906, c. 3592, § 3, 34 Stat. 596, upon the district courts, among others. Jurisdiction to review the “ final decision in the
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district courts ... in all cases,” except as otherwise provided, was conferred by Act of March 3, 1891, c. 517, § 6, 26 Stat. 826, 828, upon circuit courts of appeals. - This provision was re-enacted in Judicial Code, § 128, and by Act of February 13, 1925, c. 229, 43 Stat. 936, in § 128(a). The otder granting or denying a petition for naturalization is clehrly a final decision within the meaning of that section.
Ex parte Tiffany,
The function of admitting to citizenship has been conferred exclusively upon courts continuously since the foundation of our Government. See Act of March 26, 1790, c. 3, 1 Stat. 103. The federal district courts, am'ong others, have performed that function since the Act of January 29, 1795, c. 20, 1 Stat. 414. The constitutionality of this exercise óf jurisdiction has'never been questioned. If the proceeding were not a case or controversy within the meaning of Art. Ill, § 2, this delegation of power upon the courts would have been invalid.
Hayburn’s Case,
The petitioner’s claim is one arising under the Constitution and laws of the United States. The claim is presented to the court in such a form that the judicial power is capable of acting upon it. The proceeding is instituted and is conducted throughout according to the regular course of judicial procedure. The United States is always a possible adverse party. By § 11 of the Naturalization Act the full rights, of a litigant are expressly reserved to it. See
In re Mudarri,
The opportunity to become a citizen of the United States is said to be merely a privilege and not a right. It is true that the Constitution does not confer upon aliens the right to naturalization. But it authorizes' Congress to establish a uniform rule therefor. Art. I, § 8, cl. 4. The opportunity having been conferred by the Naturalization Act, there a sfatutorv right in tb» alien to submit nis petition and evidence to a court, to have that tribunal pass upon them, and, if the requisite facts are established, to receive the certificate. See
United States
v.
Shanahan,
The Government contends that, at all events, a naturalization proceeding is not a case within the meaning of the Court of Appeals Act. The same, phrase may, of course, have different meanings when used in different
*579
connections.
Lamar
v.
United States,
It is argued that the Naturalization Act denies appellate jurisdiction, since § 3 declares that “exclusive jurisdiction to naturalize aliens as citizens ” is conferred upon the federal and state courts there specified, and these' do not include the circuit courts of appeals. The term “ exclusive ” was used in §' 3 in order to withdraw the jurisdiction which minor state courts, being courts of record, had exercised under the authority conferred by earlier naturalization statutes. See 'House Dc-c. No. 46, 59th Cong., 1st sess., Ser. No. 4984, pp. 18-24. The section makes no reference to appellate proceedings. It is also argued that Congress manifested the intention of denying the usual method of appellate review by providing in § 15 for a bill in equity to cancel certificates of citizenship. The remedy afforded to the Government by § 15 is narrower in scope than the review commonly afforded by appellate courts. Moreover, there is no corresponding provision which would afford to the applicant for citizenship an independent remedy for correcting errors committed in the district court.
Since the adoption of the Constitution, Congress has by its legislation sought to promote the naturalization of
*580
qualified resident aliens. The Act of 1906 did not introduce any change in policy. It did change, in some respects, the qualifications. And to carry out the established policy through more effective application , of the law, it made changes in administrative and judicial machinery. That end is subserved by the correction of errors of the trial court through appellate review. Neither
United States
v.
Ness,
To the questions asked in the two cases, we answer that the Circuit Court of Appeals has jurisdiction to review by appeal the order or decree of the District Court denying the petition .to be admitted to citizenship in the United States.
Questions answered in the affirmative.
Notes
In the following cases appellate courts entertained jurisdiction over petitions for naturalization without expressly considering the. existence of a right of appeal. First Circuit:
Harmo
n v.
United
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States,
United States
v.
Neugebauer,
In re Fordiani,
