The carrier/authorized transmitting party transmits cargo declaration data to CBP via Sea AMS.
CBP transmits an acceptance message to the carrier/ authorized transmitting party indicating that the number of bills of lading that have been accepted and rejected.
The carrier/authorized transmitting party resolves any issues with rejected bills and receives an acceptance message from CBP for all bills of lading on the vessel.
The carrier/authorized transmitting party transmits the date and time of sailing.