What Is Importer Security Filing (ISF 10+2)?

 

Importer Security Filing (ISF), commonly known as "10+2," is a U.S. Customs and Border Protection (CBP) security requirement for ocean cargo imported into the United States. The regulation requires importers and their authorized agents to submit advance shipment information to CBP before cargo is loaded aboard a vessel destined for a U.S. port.

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The purpose of ISF is to improve cargo security and provide CBP with advance visibility into inbound shipments, allowing high-risk cargo to be identified before arrival.

ISF applies primarily to ocean freight shipments and is commonly filed by:

• Importers

• Customs Brokers

• Freight Forwarders

• NVOCCs acting as authorized agents

• Logistics service providers managing import compliance

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Understanding the "10+2" Requirement

The term "10+2" refers to the information required by CBP.

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The Importer's 10 Data Elements

Importers or their authorized agents are responsible for providing ten key data elements, including seller, buyer, importer of record, consignee, manufacturer, country of origin, HTS classification, and other shipment information.

 

The Carrier's 2 Data Elements

Ocean carriers are responsible for submitting:

• Vessel Stow Plan

• Container Status Messages (CSM)

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These additional data elements provide CBP with greater visibility into container movement and vessel loading activities.

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When Must ISF Be Filed?

ISF filings must generally be submitted no later than 24 hours before cargo is loaded aboard the vessel at the foreign port of origin—not 24 hours before arrival in the United States.

This filing deadline is one of the most misunderstood aspects of ISF compliance and is a common cause of late filing violations.

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To maintain compliance, importers should obtain shipment details as early as possible and coordinate closely with suppliers, freight forwarders, and customs brokers.

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What Happens If an ISF Is Filed Late?

Failure to file an ISF accurately and on time can result in significant compliance risks.

Potential consequences include:

• CBP cargo holds

• Increased cargo examinations

• Shipment delays

• Additional administrative costs

• Liquidated damages claims of up to $5,000 per violation for late, inaccurate, or incomplete filings.

 

Because filing errors often occur when shipment information is scattered across multiple systems or communicated manually, many logistics providers have adopted automated filing solutions to reduce risk and improve accuracy.

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Common ISF Compliance Challenges

Many importers and logistics providers struggle with:

• Collecting complete supplier information

• Managing tight filing deadlines

• Manual data entry

• Tracking filing confirmations

• Correcting amended shipment information

• Coordinating communication between overseas partners and U.S. operations

 

As shipment volumes increase, these challenges can create unnecessary compliance exposure and operational inefficiencies.

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How eCLEAR Simplifies ISF Compliance

Managing ISF filings manually can be time-consuming and prone to errors. Vilden's eCLEAR customs filing software helps Freight Forwarders, NVOCCs, Customs Brokers, Shipping Lines, and logistics providers streamline the entire filing process through one centralized cloud-based platform.

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With eCLEAR, users can:

• Automate ISF Filing Workflows - Reduce manual data entry and improve filing accuracy.

• Monitor Filing Statuses - Track filing confirmations and shipment activity in real time.

• Centralize Compliance Operations - Manage ISF, AMS, ACE, AES, ICS2, and other customs filing requirements through a single platform.

• Improve Operational Visibility - Provide compliance teams with greater visibility into filing activity and shipment status.

• Reduce Compliance Risk - Maintain filing consistency while minimizing late or incomplete submissions.

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Why Choose eCLEAR Customs Filing Software?

eCLEAR is designed specifically for transportation and logistics providers that require reliable customs compliance tools without the complexity of maintaining direct government system integrations.

 

Supported Filing Programs

• ISF 10+2

• AMS

• ACE

• AES

• Electronic In-Bond

• EU ICS2 ENS

• Canada eManifest

• Japan AFR/JP24

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Benefits

• Cloud-based access

• Faster implementation

• No local software installation

• Centralized compliance management

• Integrated customs filing workflows

• Scalable for growing operations

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Frequently Asked Questions

 

What is ISF 10+2?

ISF 10+2 is a CBP security filing requirement that requires advance shipment information to be submitted before ocean cargo is loaded onto a vessel destined for the United States.

 

Who is responsible for filing ISF?

The importer of record is responsible for ISF compliance but may authorize a customs broker, freight forwarder, or other agent to submit the filing on its behalf.

 

When must ISF be filed?

Generally, ISF must be submitted no later than 24 hours before cargo is loaded onto the vessel at the foreign port.

 

What is the penalty for a late ISF filing?

CBP may assess liquidated damages of up to $5,000 per violation for late, incomplete, or inaccurate filings.

 

Does eCLEAR support ISF filing?

Yes. eCLEAR supports ISF filing along with AMS, ACE, AES, Electronic In-Bond, ICS2 ENS, and other customs compliance programs.

 

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Ready to Simplify ISF Compliance?

Whether you're filing a handful of ISFs each month or managing high-volume import operations, eCLEAR helps automate customs compliance workflows, reduce filing risk, and improve operational efficiency.

👉 Request a Demo
👉 Connect with a Compliance Specialist

👉 Learn More About eCLEAR Customs Filing Software

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