ACE Shipments with the Shipment Type Section 321 must be created by the carrier and added to their ACE eManifest. 

Although a Section 321 shipment is different from a PAPS shipment, the carrier will still need to provide a unique Shipment Control Number and all other information normally required for an ACE shipment including Shipper, Consignee, and Commodity information. In addition, the carrier must include the Value and Country of Origin of the goods in the ACE shipment.

Informal Entries do not require Customs Broker involvement and carriers will not receive Entry Numbers. At the border, the driver should be prepared to show paperwork for the shipment to the Customs Officer.

Please note: As of January 1, 2019 highway carriers entering the U.S. with Section 321 shipments are required to file an ACE eManifest for that truck.