122.101—Entry of accompanied baggage.

Passengers who enter the U.S. on one aircraft and depart to a foreign area on another aircraft with accompanying baggage shall either:
(a) Submit their baggage to Customs for inspection; or
(b) Arrange with the importing carrier for the baggage to be processed under regular in-transit procedures.

Code of Federal Regulations

When passengers choose not to have access to their baggage while in the U.S., the baggage shall be listed on the Air Cargo Manifest as provided in § 122.48 .