Packing List

Definition

A packing list is the document that itemizes the contents, weight, dimensions, and packaging of a shipment. It accompanies the commercial invoice and bill of lading as part of the core document set for customs clearance and delivery.

Why it matters

The packing list provides the physical description data that CBP uses to verify the shipment matches the declared entry. Discrepancies between the packing list, the commercial invoice, and the bill of lading are a common trigger for customs examination.

What the packing list must include

A complete packing list includes the shipper and consignee, the shipment reference numbers, and for each package or carton: the package number, description of contents, quantity per carton, number of cartons, gross weight, net weight, and dimensions. The total gross weight on the packing list must agree with the weight declared on the bill of lading. The total quantity must agree with the commercial invoice. The package count must match what the carrier issued the B/L against. Discrepancies on any of these three dimensions create a customs reconciliation problem.

Why packing lists are the document most likely to contain errors

The packing list is prepared by the shipper, often by a warehouse worker at the factory using a template. It is the document least likely to be reviewed carefully by anyone with customs knowledge before it is included in the pre-alert. Common errors include: the total weight on the packing list not matching the B/L (because cargo was re-weighed after the packing list was issued), the piece count not matching the invoice (because a partial shipment was substituted at the last minute), and product descriptions that are not specific enough for HTS classification (for example, 'plastic parts' instead of the specific product category). These errors are not always caught before the ISF is filed.

Packing list vs. certificate of packing and other related documents

For regulated commodities, a standard packing list is supplemented by additional documentation. A fumigation certificate confirms that wooden packaging has been treated to meet ISPM-15 phytosanitary standards (required for virtually all wooden pallets and crates entering the U.S.). A certificate of packing for dangerous goods (IMDG) certifies that hazmat cargo was packed to IMDG code requirements. A weight certificate issued by an independent surveyor may be required when the cargo weight exceeds certain thresholds or when the B/L weight needs third-party verification. Forwarders handling regulated commodities must ensure these supplemental packing documents are included in the pre-alert and carried through to the customs entry.