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Part 121

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  4. Part 121
  5. Subpart W
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14 CFR Part 121
  1. Subpart A: General
  2. Subpart B—Certification Rules for Domestic and Flag Air Carriers [Reserved]
  3. Subpart C—Certification Rules for Supplemental Air Carriers and Commercial Operators [Reserved]
  4. Subpart D—Rules Governing All Certificate Holders Under This Part [Reserved]
  5. Subpart E: Approval of Routes: Domestic and Flag Operations
  6. Subpart F: Approval of Areas and Routes for Supplemental Operations
  7. Subpart G: Manual Requirements
  8. Subpart H: Aircraft Requirements
  9. Subpart I: Airplane Performance Operating Limitations
  10. Subpart J: Special Airworthiness Requirements
  11. Subpart K: Instrument and Equipment Requirements
  12. Subpart L: Maintenance, Preventive Maintenance, and Alterations
  13. Subpart M: Airman and Crewmember Requirements
  14. Subpart N: Training Program
  15. Subpart O: Crewmember Qualifications
  16. Subpart P: Aircraft Dispatcher Qualifications and Duty Time
  17. Subpart Q: Flight Time Limitations and Rest Requirements: Domestic Operations
  18. Subpart R: Flight Time Limitations: Flag Operations
  19. Subpart S: Flight Time Limitations: Supplemental Operations
  20. Subpart T: Flight Operations
  21. Subpart U: Dispatching and Flight Release Rules
  22. Subpart V: Records and Reports
  23. Subpart W: Crewmember Certificate: International
    1. § 121.721 Applicability.
    2. § 121.723 Surrender of international crewmember certificate.
  24. Subpart X: Emergency Medical Equipment and Training
  25. Subpart Y: Advanced Qualification Program
  26. Subpart Z: Hazardous Materials Training Program
  27. Subpart AA: Continued Airworthiness and Safety Improvements
  28. Subpart BB [Reserved]
  29. §§ 121.1200-121.1399 [Reserved]
  30. Subpart CC [Reserved]
  31. §§ 121.1400-121.1499 [Reserved]
  32. Subpart DD: Special Federal Aviation Regulations
  33. Appendices

    Appendix A to Part 121: First Aid Kits and Emergency Medical Kits
  34. Appendix B to Part 121: Airplane Flight Recorder Specification
  35. Appendix C to Part 121: C-46 Nontransport Category Airplanes
  36. Appendix D to Part 121: Criteria for Demonstration of Emergency Evacuation Procedures Under § 121.291
  37. Appendix E to Part 121: Flight Training Requirements
  38. Appendix F to Part 121: Proficiency Check Requirements
  39. Appendix G to Part 121: Doppler Radar and Inertial Navigation System (INS): Request for Evaluation; Equipment and Equipment Installation; Training Program; Equipment Accuracy and Reliability; Evaluation Program
  40. Appendix H to Part 121: Advanced Simulation
  41. Appendixes I-J to Part 121 [Reserved]
  42. Appendix K to Part 121: Performance Requirements for Certain Turbopropeller Powered Airplanes
  43. Appendix L to Part 121: Type Certification Regulations Made Previously Effective
  44. Appendix M to Part 121: Airplane Flight Recorder Specifications
  45. Appendix N to Part 121 [Reserved]
  46. Appendix O to Part 121: Hazardous Materials Training Requirements For Certificate Holders
  47. Appendix P to Part 121: Requirements for ETOPS and Polar Operations

14 CFR Part 121|eCFR Sep 29, 2026

Subpart W

Crewmember Certificate: International

2 Sections|§§ 121.721–121.723

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§ 121.721 Applicability.

This section describes the certificates that were issued to United States citizens who were employed by air carriers at the time of issuance as flight crewmembers on United States registered aircraft engaged in international air commerce. The purpose of the certificate is to facilitate the entry and clearance of those crewmembers into ICAO contracting states. They were issued under Annex 9, as amended, to the Convention on International Civil Aviation.

§ 121.723 Surrender of international crewmember certificate.

The holder of a certificate issued under this section, or the air carrier by whom the holder is employed, shall surrender the certificate for cancellation at the responsible Flight Standards office at the termination of the holder's employment with that air carrier.

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§ 121.721 Applicability.

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