19 C.F.R. § 122.113 Form for transit air cargo manifest procedures.
Title 19 - Customs Duties
A manifest on Customs Form 7509 is required for transit air cargo, as provided in §122.48(c) of this part. The words “Transportation Entry and Transit Air Cargo Manifest” shall be printed, stamped or marked on the form and on all copies of the form required for transit air cargo movement.
Title 19: Customs Duties
PART 122—AIR COMMERCE REGULATIONS
Subpart L—Transit Air Cargo Manifest (TACM) Procedures
§ 122.113 Form for transit air cargo manifest procedures.

