ISF 10+2 for China to USA Ocean Freight: Timing and Data Checklist
The Importer Security Filing (ISF), often called “10+2,” is an advance filing requirement for cargo arriving in the United States by vessel. It is not a general requirement for every transport mode. Missing or inaccurate filing can create penalties and shipment complications, so coordinate the data early with the importer and filing party.
Know the deadline
CBP states that the U.S.-bound ISF must be submitted no later than 24 hours before cargo is laden aboard the vessel destined for the United States. That means the information must be ready before the vessel cutoff, not after departure. Confirm filing status with the responsible party in writing.
Gather the shipment data
The filing uses information about parties and goods such as seller, buyer, importer of record, consignee, manufacturer or supplier, ship-to party, country of origin and commodity HTSUS number. Two additional data elements—container stuffing location and consolidator—are due as early as possible and no later than 24 hours before arrival, according to CBP guidance.
Agree who files
The importer or its authorized agent is responsible for ensuring filing is arranged. Ask whether the customs broker, forwarder or another provider will submit through an authorized electronic system, what authorization is needed, and how amendments are handled. Do not assume that booking ocean space automatically includes ISF.
Make the supplier data usable
Ask the supplier for full legal names and addresses, manufacturer details, origin, ship-to party, product description and classification information. Use consistent spelling and addresses across purchase records and shipping documents. Have the importer or broker confirm tariff classification rather than guessing.
Escalate changes immediately
If the supplier, manufacturer, ship-to location or cargo stuffing plan changes, tell the filer before the cutoff. Keep a record of submission acceptance and any correction. CBP identifies a potential $5,000 liquidated-damages amount for each inaccurate, incomplete or untimely filing; confirm current rules and case details with your broker.
Before you request a quote
- Confirm the shipment is arriving by vessel
- Name the ISF filer and authorize the filing
- Send complete party, supplier and cargo data early
- Confirm filing acceptance before the vessel cutoff
- Report any shipment data changes immediately