14 C.F.R. § 121.723 Surrender of international crewmember certificate.
Title 14 - Aeronautics and Space
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 nearest FAA Flight Standards District Office at the termination of the holder's employment with that air carrier. [Doc. No. 28154, 61 FR 30435, June 14, 1996]
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart W—Crewmember Certificate: International
§ 121.723 Surrender of international crewmember certificate.