The Importer Security Filing (ISF), commonly known as ISF 10+2, is a mandatory U.S. Customs and Border Protection (CBP) regulation requiring ocean importers and vessel operating carriers to submit 12 specific data elements electronically prior to cargo loading at a foreign port. Implemented under the SAFE Port Act of 2006, the primary objective of ISF is to identify high-risk maritime shipments before they depart overseas hubs for the United States.
Failing to transmit complete and accurate ISF data at least 24 hours prior to container loading on the vessel at the foreign port triggers severe statutory penalties. CBP actively issues liquidated damages claims of $5,000 per late filing, $5,000 per inaccurate filing, and up to $10,000 per non-filing. Furthermore, non-compliant shipments face mandatory hold status, non-intrusive inspection (NII) imaging scans, manual container devanning at bonded Centralized Examination Stations (CES), and compounding demurrage fees that rapidly surpass thousands of dollars per day.
The Technical Breakdown: What Comprises the 10+2 Data Set?
To achieve full compliance, your customs entry team must synthesize data from commercial invoices, packing lists, supplier profiles, and ocean bills of lading. The filing is categorized into two distinct datasets:
The 10 Importer Data Elements (Required from the Importer of Record):
- Seller Name & Address: The last known entity that sells or agrees to sell the goods.
- Buyer Name & Address: The last known entity to whom the goods are sold or agreed to be sold.
- Importer of Record (IOR) Number / FTZ Applicant Number: The IRS number, EIN, SSN, or Customs Assigned Number of the entity responsible for duties.
- Consignee Number(s): The legal tax ID number of the individual or firm in the US to whose account the goods are shipped.
- Manufacturer (or Supplier) Name & Address: The entity that produces or fabricates the finished product, or the entity that packages/assembles it.
- Ship to Party Name & Address: The first point of physical delivery after customs release.
- Country of Origin: The country of manufacture, production, or growth, determined under US Customs rules of origin.
- Harmonized Tariff Schedule (HTSUS) Number: Commodity classification to at least the 6-digit (ideally 8- or 10-digit) level.
- Container Stuffing Location: The physical name and address of the facility where goods were packed into the ocean container (critical for FCL/LCL).
- Consolidator (Stuffer) Name & Address: The entity that loaded or managed the loading of the container.
The 2 Carrier Data Elements (Transmitted by the Ocean Line):
- Vessel Stow Plan: Transmitted by ocean carriers within 48 hours of departure (or 24 hours prior to arrival for shorter transits).
- Container Status Messages (CSM): Terminal events, equipment movements, and booking status alerts.