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Importer Security Filing (ISF / 10+2)

ISF requirements, filing timelines, data elements, and penalties for non-compliance.

19 CFR 149

What Is ISF

The Importer Security Filing (ISF), also known as '10+2', requires importers to electronically submit specific cargo information to CBP before goods are loaded onto a vessel bound for the United States. The requirement applies to all containerized cargo arriving by vessel. The importer (or their agent) provides 10 data elements, while the carrier provides 2 additional elements.

The 10 Importer Data Elements

The importer must provide: (1) Seller name/address; (2) Buyer name/address; (3) Importer of Record number; (4) Consignee number; (5) Manufacturer/Supplier name/address; (6) Ship-to party; (7) Country of origin; (8) HTS-6 number; (9) Container stuffing location; (10) Consolidator name/address. These must be filed no later than 24 hours before the cargo is laden aboard the vessel at the foreign port.

Penalties for Non-Compliance

Failure to timely file ISF, filing inaccurate ISF data, or failing to update ISF information can result in liquidated damages of $5,000 per violation. In extreme cases, CBP may refuse to release the cargo, issue 'do not load' orders, or subject shipments to additional examination. Brokers should implement processes to ensure ISF is filed accurately and on time for all ocean shipments.

Key Terms

ISF / 10+2|进口商安全申报 / 10+2
24-Hour Rule|24 小时规则
Liquidated Damages|违约金
Do Not Load|禁止装载
Back to Knowledge BaseUpdated 2026-04-09