Subchapter C - NATIONALITY REGULATIONS
- Part 301 - NATIONALS AND CITIZENS OF THE UNITED STATES AT BIRTH (§ 301.1)
- Part 306 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: VIRGIN ISLANDERS (§§ 306.1 — 306.12)
- Part 310 - NATURALIZATION AUTHORITY (§§ 310.1 — 310.5)
- Part 312 - EDUCATIONAL REQUIREMENTS FOR NATURALIZATION (§§ 312.1 — 312.5)
- Part 313 - MEMBERSHIP IN THE COMMUNIST PARTY OR ANY OTHER TOTALITARIAN ORGANIZATIONS (§§ 313.1 — 313.4)
- Part 315 - PERSONS INELIGIBLE TO CITIZENSHIP: EXEMPTION FROM MILITARY SERVICE (§§ 315.1 — 315.4)
- Part 316 - GENERAL REQUIREMENTS FOR NATURALIZATION (§§ 316.1 — 316.20)
- Part 318 - PENDING REMOVAL PROCEEDINGS (§ 318.1)
- Part 319 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: SPOUSES OF UNITED STATES CITIZENS (§§ 319.1 — 319.11)
- Part 320 - CHILD BORN OUTSIDE THE UNITED STATES AND RESIDING PERMANENTLY IN THE UNITED STATES; REQUIREMENTS FOR AUTOMATIC ACQUISITION OF CITIZENSHIP (§§ 320.1 — 320.5)
- Part 322 - CHILD BORN OUTSIDE THE UNITED STATES; REQUIREMENTS FOR APPLICATION FOR CERTIFICATE OF CITIZENSHIP (§§ 322.1 — 322.5)
- Part 324 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: WOMEN WHO HAVE LOST UNITED STATES CITIZENSHIP BY MARRIAGE AND FORMER CITIZENS WHOSE NATURALIZATION IS AUTHORIZED BY PRIVATE LAW (§§ 324.1 — 324.5)
- Part 325 - NATIONALS BUT NOT CITIZENS OF THE UNITED STATES; RESIDENCE WITHIN OUTLYING POSSESSIONS (§§ 325.1 — 325.4)
- Part 327 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: PERSONS WHO LOST UNITED STATES CITIZENSHIP THROUGH SERVICE IN ARMED FORCES OF FOREIGN COUNTRY DURING WORLD WAR II (§§ 327.1 — 327.2)
- Part 328 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: PERSONS WITH 1 YEAR OF SERVICE IN THE UNITED STATES ARMED FORCES (§§ 328.1 — 328.4)
- Part 329 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: PERSONS WITH ACTIVE DUTY OR CERTAIN READY RESERVE SERVICE IN THE UNITED STATES ARMED FORCES DURING SPECIFIED PERIODS OF HOSTILITIES (§§ 329.1 — 329.4)
- Part 330 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: SEAMEN (§§ 330.1 — 330.2)
- Part 331 - ALIEN ENEMIES; NATURALIZATION UNDER SPECIFIED CONDITIONS AND PROCEDURES (§§ 331.1 — 331.4)
- Part 332 - NATURALIZATION ADMINISTRATION (§§ 332.1 — 332.5)
- Part 333 - PHOTOGRAPHS (§§ 333.1 — 333.2)
- Part 334 - APPLICATION FOR NATURALIZATION (§§ 334.1 — 334.12-334.15)
- Part 335 - EXAMINATION ON APPLICATION FOR NATURALIZATION (§§ 335.1 — 335.10)
- Part 336 - HEARINGS ON DENIALS OF APPLICATIONS FOR NATURALIZATION (§§ 336.1 — 336.9)
- Part 337 - OATH OF ALLEGIANCE (§§ 337.1 — 337.10)
- Part 338 - CERTIFICATE OF NATURALIZATION (§§ 338.1 — 338.6-338.10)
- Part 339 - FUNCTIONS AND DUTIES OF CLERKS OF COURT REGARDING NATURALIZATION PROCEEDINGS (§§ 339.1 — 339.5)
- Part 340 - REVOCATION OF NATURALIZATION (§§ 340.1 — 340.2)
- Part 341 - CERTIFICATES OF CITIZENSHIP (§§ 341.1 — 341.5)
- Part 342 - ADMINISTRATIVE CANCELLATION OF CERTIFICATES, DOCUMENTS, OR RECORDS (§§ 342.1 — 342.9)
- Part 343 - CERTIFICATE OF NATURALIZATION OR REPATRIATION; PERSONS WHO RESUMED CITIZENSHIP UNDER SECTION 323 OF THE NATIONALITY ACT OF 1940, AS AMENDED, OR SECTION 4 OF THE ACT OF JUNE 29, 1906 (§ 343.1)
- Part 343a - NATURALIZATION AND CITIZENSHIP PAPERS LOST, MUTILATED, OR DESTROYED; NEW CERTIFICATE IN CHANGED NAME; CERTIFIED COPY OF REPATRIATION PROCEEDINGS (§§ 343a.1 — 343a.2)
- Part 343b - SPECIAL CERTIFICATE OF NATURALIZATION FOR RECOGNITION BY A FOREIGN STATE (§§ 343b.1 — 343b.11)
- Part 343c - CERTIFICATIONS FROM RECORDS (§ 343c.1)
- Part 349 - LOSS OF NATIONALITY (§ 349.1)
- Part 392 - SPECIAL CLASSES OF PERSONS WHO MAY BE NATURALIZED: PERSONS WHO DIE WHILE SERVING ON ACTIVE DUTY WITH THE UNITED STATES ARMED FORCES DURING CERTAIN PERIODS OF HOSTILITIES (§§ 392.1 — 392.4)