Part 51 - PASSPORTS
- Subpart A - GENERAL (§§ 51.2 — 51.10)
- Subpart B - APPLICATION (§§ 51.20 — 51.28)
- Subpart C - EVIDENCE OF U.S. CITIZENSHIP OR NATIONALITY (§§ 51.40 — 51.46)
- Subpart D - FEES (§§ 51.50 — 51.56)
- Subpart E - DENIAL, REVOCATION, AND RESTRICTION OF PASSPORTS AND CANCELLATION OF CONSULAR REPORTS OF BIRTH ABROAD (§§ 51.60 — 51.66)
- Subpart F - PROCEDURES FOR REVIEW OF CERTAIN DENIALS AND REVOCATIONS (§§ 51.70 — 51.74)
- Section 51.1 - Definitions