As of July 29th, 2019, CBP will no longer accept paper copies of the CBPF 7512 to perform arrival and export functionality. Trade stakeholders will be required to report all in-bond exports, arrivals and diversions electronically through the Automated Commercial Environment (ACE).
If your drivers move shipments through the United States in-bond, you will want to take time to read the Automated In-Bond Processing Business Process Document to be sure you are in compliance.
Please note that air shipments will be excluded from this change.