Over billions of cargo are being imported into the USA each year, and staying compliant with it is not optional; it's a necessity. One of the most crucial and first steps in that compliance journey is AMS filling.
So, how do you file an AMS(Automated Manifest System) with the U.S. Customs, and what is the process?
In this guide, we'll walk you through the step-by-step AMS filing process for ocean freight, explain who's responsible, what information is required, and how to stay compliant while keeping your cargo on schedule.
What is AMS?
AMS stands for Automated Manifest System. It is an electronic method the CBP uses to collect data on what type of goods are being imported into the USA.
AMS is not only filed for ocean shipments but also for air shipments, but ocean shipments are commonly referenced.
To prevent potential delays and hefty fines, it is advised to file an AMS(Automated Manifest System) before the entry of goods into the USA; this will help the CBP to verify shipments, improve security, and prevent delays caused by incomplete or incorrect data.
When Should AMS Be Filed?
As discussed above, AMS should be filed 24 hours before loading cargo into the vessel at the foreign port of departure.
Missing this deadline can lead to:
- Cargo not being loaded onto the vessel
- Delays at the destination port
- Costly fines up to $10,000
Who is Responsible for AMS(Automated Manifest System) Filing?
To avoid incorrect, delayed filings, the AMS can be filed by reputed and reliable Non-vessel Operating Common Carriers (NVOCCs) and freight forwarders that issue House Bills of Lading.
Because they are experts, they will ensure the timely filing of all the related customs documents and ensure you clear all the customs procedures without trouble.
Step-by-Step AMS Filing Process for Ocean Freight
What Information Is Required to File AMS With U.S. Customs?
Before you file, you'll need to collect all relevant data. Here’s what information is required to file AMS:
- Master and House Bill of Lading numbers
- Shipper and consignee details
- Description of cargo and HS codes
- Container and seal numbers
- Total weight and volume
- Port of origin and discharge
- Vessel name and voyage number
- SCAC (Standard Carrier Alpha Code) of the filer
Being thorough at this stage helps prevent errors and AMS rejections.
How can an importer submit AMS Data Electronically
The next step is how to submit AMS data electronically to CBP. This can be done in two ways:
- Using a Third-Party AMS Filing Service Provider — Most freight forwarders and smaller companies choose this route. It’s cost-effective, secure, and ensures compliance with CBP regulations.
- Direct Filing via EDI (Electronic Data Interchange) — This method is typically used by large carriers and NVOCCs.
Working with the best AMS filing service providers for importers gives you access to tools that simplify the process and reduce filing errors.
Wait for Acknowledgment or Rejection
Once your AMS data is submitted, you’ll receive either a confirmation of acceptance or a rejection notice. If rejected, you must correct the issues and resubmit.
Knowing how to file an AMS with U.S. Customs includes being ready to troubleshoot and refile quickly to avoid delays.
Make Amendments if Needed
If there are any changes in cargo details, like container number, seal, or consignee, you must update the AMS manifest after submission.
Failing to amend the data can result in a mismatch with other filings or penalties.
Ensure AMS and ISF Data Match
For ocean imports, the difference between ISF and AMS filing must be understood. The Importer Security Filing (ISF) is a separate requirement, but CBP cross-references both filings.
Any inconsistencies can lead to:
- Delays at the port
- AMS holds
- Fines of up to $10,000 per infraction
Avoid these risks by ensuring AMS and ISF filing mismatch consequences are accounted for and your data is accurate across all filings.
How Can You File AMS (Automated Manifest System) Easily?
The easiest and most reliable way to file AMS is by working with a trusted freight forwarder or NVOCC.
These logistics experts handle AMS filings every day and know exactly what’s required to ensure your cargo is compliant, secure, and on schedule.
Benefits of Filing AMS Through a Freight Forwarder or NVOCC like AIR 7 SEAS
- With years of experience in customs documentation, freight forwarders know exactly what’s required. They help you in collecting all the necessary data—Bills of Lading, HS codes, container and seal numbers, and more.
- Reliable providers stay updated on ever-changing CBP regulations. They ensure timely, compliant submissions that prevent fines, holds, or rejection notices.
- Professionals use Electronic Data Interchange (EDI) to send data directly to CBP, ensuring fast, secure, and accurate filing.
- Top providers like Air7Seas offer online portals where you can track filing status, receive confirmations, and communicate in real time—no guessing, no gaps.
- Avoid delays caused by common mistakes. If a rejection happens, experienced filing teams fix and refile quickly to keep your cargo moving.
- Professionals ensure your AMS and ISF data are aligned to avoid CBP mismatches.
- Established NVOCCs and forwarders are bonded, insured, and recognized across global shipping networks—adding another layer of security and credibility.
- Whether it’s a single container or regular shipments, a good partner offers flexible support tailored to your business.
Which country requires AMS filing
AMS Filing is required for all ocean imports into the United States, including both FCL (Full Container Load) and LCL (Less than Container Load) shipments.
But the United States is not the only country that requires AMS Filing. Other countries includes
- Canada
- Mexico
- China
- Japan
Failure to comply with AMS requirements in the above countries can result in fines, shipment delays, or cargo being denied entry .
Why is AMS(Automated Manifest System) Filing Important?
Here’s why AMS matters:
- Ensures regulatory compliance with U.S. Customs
- Reduces the risk of cargo holds or penalties
- Provides cargo tracking and visibility
- Speeds up customs clearance
- Supports national cargo security initiatives
Final Thoughts
Understanding how to file an AMS with U.S. Customs is essential for anyone involved in international logistics. From gathering documents to submitting via EDI or a service provider, staying ahead of AMS compliance protects your cargo and your business.
At Air7Seas, we specialize in hassle-free documentation services, offering AMS filing, ISF filing, and real-time status updates through our online portal. Whether you're an importer or a global freight forwarder, we help you stay compliant, accurate, and on schedule.
Ready to simplify AMS filing for your next shipment? Contact our team for fast, reliable filing solutions that keep your cargo moving.