Subchapter III: NATIONALITY AND NATURALIZATION
Part I: Nationality at Birth and Collective Naturalization
- Section 1401: Nationals and citizens of United States at birth
- Section 1401a: Birth abroad before 1952 to service parent
- Section 1401b: Repealed. Pub. L. 92–584, § 2, Oct. 27, 1972, 86 Stat. 1289
- Section 1402: Persons born in Puerto Rico on or after April 11, 1899
- Section 1403: Persons born in the Canal Zone or Republic of Panama on or after February 26, 1904
- Section 1404: Persons born in Alaska on or after March 30, 1867
- Section 1405: Persons born in Hawaii
- Section 1406: Persons living in and born in the Virgin Islands
- Section 1407: Persons living in and born in Guam
- Section 1408: Nationals but not citizens of the United States at birth
- Section 1409: Children born out of wedlock
Part II: Nationality Through Naturalization
- Section 1421: Naturalization authority
- Section 1422: Eligibility for naturalization
- Section 1423: Requirements as to understanding the English language, history, principles and form of government of the United States
- Section 1424: Prohibition upon the naturalization of persons opposed to government or law, or who favor totalitarian forms of government
- Section 1425: Ineligibility to naturalization of deserters from the Armed Forces
- Section 1426: Citizenship denied alien relieved of service in Armed Forces because of alienage
- Section 1427: Requirements of naturalization
- Section 1428: Temporary absence of persons performing religious duties
- Section 1429: Prerequisite to naturalization; burden of proof
- Section 1430: Married persons and employees of certain nonprofit organizations
- Section 1431: Children born outside the United States and residing permanently in the United States; conditions under which citizenship automatically acquired; determinations of name and birth date
- Section 1432: Repealed. Pub. L. 106–395, title I, § 103(a), Oct. 30, 2000, 114 Stat. 1632
- Section 1433: Children born and residing outside the United States; conditions for acquiring certificate of citizenship
- Section 1434: Repealed. Pub. L. 95–417, § 7, Oct. 5, 1978, 92 Stat. 918
- Section 1435: Former citizens regaining citizenship
- Section 1436: Nationals but not citizens; residence within outlying possessions
- Section 1437: Resident Philippine citizens excepted from certain requirements
- Section 1438: Former citizens losing citizenship by entering armed forces of foreign countries during World War II
- Section 1439: Naturalization through service in the armed forces
- Section 1440: Naturalization through active-duty service in the Armed Forces during World War I, World War II, Korean hostilities, Vietnam hostilities, or other periods of military hostilities
- Section 1440–1: Posthumous citizenship through death while on active-duty service in armed forces during World War I, World War II, the Korean hostilities, the Vietnam hostilities, or in other periods of military hostilities
- Section 1440a to 1440d: Omitted
- Section 1440e: Exemption from naturalization fees for aliens naturalized through service during Vietnam hostilities or other subsequent period of military hostilities; report by clerks of courts to Attorney General
- Section 1440f: Fingerprints and other biometric information for members of the United States Armed Forces
- Section 1440g: Provision of information on military naturalization
- Section 1441: Constructive residence through service on certain United States vessels
- Section 1442: Alien enemies
- Section 1443: Administration
- Section 1443a: Naturalization proceedings overseas for members of the Armed Forces and their spouses and children
- Section 1444: Photographs; number
- Section 1445: Application for naturalization; declaration of intention
- Section 1446: Investigation of applicants; examination of applications
- Section 1447: Hearings on denials of applications for naturalization
- Section 1448: Oath of renunciation and allegiance
- Section 1448a: Address to newly naturalized citizens
- Section 1449: Certificate of naturalization; contents
- Section 1450: Functions and duties of clerks and records of declarations of intention and applications for naturalization
- Section 1451: Revocation of naturalization
- Section 1452: Certificates of citizenship or U.S. non-citizen national status; procedure
- Section 1453: Cancellation of certificates issued by Attorney General, the Commissioner or a Deputy Commissioner; action not to affect citizenship status
- Section 1454: Documents and copies issued by Attorney General
- Section 1455: Fiscal provisions
- Section 1456: Repealed. Pub. L. 86–682, § 12(c), Sept. 2, 1960, 74 Stat. 708, eff. Sept. 1, 1960
- Section 1457: Publication and distribution of citizenship textbooks; use of naturalization fees
- Section 1458: Compilation of naturalization statistics and payment for equipment
- Section 1459: Repealed. Pub. L. 101–649, title IV, § 407(d)(20), Nov. 29, 1990, 104 Stat. 5046
Part III: Loss of Nationality
- Section 1481: Loss of nationality by native-born or naturalized citizen; voluntary action; burden of proof; presumptions
- Section 1482: Repealed. Pub. L. 95–432, § 1, Oct. 10, 1978, 92 Stat. 1046
- Section 1483: Restrictions on loss of nationality
- Section 1484 to 1487: Repealed. Pub. L. 95–432, § 2, Oct. 10, 1978, 92 Stat. 1046
- Section 1488: Nationality lost solely from performance of acts or fulfillment of conditions
- Section 1489: Application of treaties; exceptions
Part IV: Miscellaneous
- Section 1501: Certificate of diplomatic or consular officer of United States as to loss of American nationality
- Section 1502: Certificate of nationality issued by Secretary of State for person not a naturalized citizen of United States for use in proceedings of a foreign state
- Section 1503: Denial of rights and privileges as national
- Section 1504: Cancellation of United States passports and Consular Reports of Birth