What Are AMS and ISF Filings?

When importing goods into the United States, compliance with U.S. Customs and Border Protection (CBP) regulations is essential. Two critical requirements are:

• AMS (Automated Manifest System)

• ISF (Importer Security Filing / 10+2 Rule)

Although often confused, these filings serve different but complementary roles in the import process.

 In simple terms:

• AMS = cargo information (what is shipped)

• ISF = security data (who is involved in the shipment)

Both are mandatory for ocean freight imports into the U.S.

What Is AMS Filing?

AMS (Automated Manifest System) is an electronic system used by CBP to receive shipment data before cargo arrives.

Key Features of AMS:

• Filed by: Carrier or NVOCC

• Purpose: Advance cargo screening & risk assessment

• Deadline:

• Ocean freight → 24 hours before vessel loading

• Air freight → before departure

Required AMS Information:

• Shipper & consignee

• Bill of lading

• Cargo description

• Weight & packaging

• Port of loading & discharge

 AMS helps CBP identify high-risk shipments early and speed up low-risk cargo clearance

What Is ISF Filing (10+2)?

ISF (Importer Security Filing) is a mandatory filing specifically for ocean shipments to the U.S.

It is also known as the “10+2 Rule”.

Key Features of ISF:

• Filed by: Importer of record or customs broker

• Deadline: 24 hours before vessel loading

• Applies to: Ocean freight only

ISF “10+2” Data Requirements

Importer must submit 10 elements:

• Importer of record number

• Seller & buyer

• Manufacturer / supplier

• Ship-to party

• Container stuffing location

• Consolidator

• HTS code

Carrier submits 2 elements:

• Vessel stow plan

• Container status messages

 ISF provides CBP with supply chain visibility and security risk assessment before shipment departure

AMS vs ISF: Key Differences

Both filings are required together for ocean imports into the U.S.

Why AMS & ISF Compliance Matters

Failure to comply can seriously impact your shipment:

 Common Risks

• Cargo holds at port

• Customs inspections

• Shipment delays

• Demurrage & storage fees

• Increased scrutiny on future shipments

 Financial Penalties

• ISF violations: up to $5,000 per shipment

• Additional indirect costs:

• Inspection fees

• Delivery delays

• Customer penalties

 Late or incorrect filings are one of the top causes of import delays in the U.S.

AMS & ISF Filing Timeline (Critical)

 Key Rule: 24-Hour Advance Filing

Both AMS and ISF must be submitted:

At least 24 hours BEFORE cargo is loaded at origin port

If missed:

• Container may not be loaded

• Or shipment may be flagged for inspection

Common Mistakes to Avoid

 Late Filing

Missing the 24-hour deadline

 Incorrect HS Code

Leads to customs inspection

 Inconsistent Data

Mismatch between AMS & ISF

 Incomplete Supplier Information

Triggers CBP review

 Even small errors can result in costly delays and penalties

Best Practices for U.S. Import Compliance

To ensure smooth clearance:

 Prepare Data Early

Collect supplier & shipment details in advance

 Double-Check Documentation

Ensure consistency across:

• Invoice

• Packing list

• ISF & AMS

 Work with Experienced Forwarders

Avoid compliance risks

 Use Digital Systems (EDI/API)

Reduce manual errors

How BRF SHIPPING Supports AMS & ISF Filing

At BRF SHIPPING, we provide end-to-end compliance support for U.S. imports.

Our Services:

•  AMS filing coordination

•  ISF (10+2) filing support

•  Data verification & compliance checks

•  Customs clearance assistance

•  Full logistics solutions (FCL / LCL / DDP)

Why Choose BRF SHIPPING?

• Strong expertise in U.S. import regulations

• Reduced risk of CBP penalties

• Faster clearance & delivery

• Reliable communication with suppliers & brokers

 We ensure your shipments are 100% compliant before departure

What Shippers Should Do Now

If you’re importing into the U.S.:

• Confirm whether AMS & ISF are required

• Prepare all data before booking

• Submit filings on time (24h rule)

• Work with a professional partner like BRF SHIPPING

FAQ: AMS & ISF Filing

Do I need both AMS and ISF?

Yes. AMS is filed by the carrier, while ISF is filed by the importer for ocean shipments.

Does ISF apply to air shipments?

No. ISF applies only to ocean freight

What happens if ISF is late?

You may face:

• Fines up to $5,000

• Cargo delays or inspections

Can a freight forwarder file ISF?

Yes. Most importers authorize a customs broker or freight forwarder to file on their behalf.

Conclusion

AMS and ISF are not optional—they are critical compliance requirements for importing into the United States.

• AMS ensures cargo transparency

• ISF ensures supply chain security

 Together, they form the backbone of U.S. import compliance.

With BRF SHIPPING, you can streamline the entire process, avoid penalties, and ensure your cargo moves smoothly from origin to destination.