Importer Security Filing (ISF)
The U.S. Customs filing required before ocean cargo is loaded for the United States.
Also known as: ISF, ISF 10+2
What is Importer Security Filing (ISF)?
The Importer Security Filing (ISF), often called 10+2, is a U.S. Customs and Border Protection requirement for ocean shipments bound for the United States. The importer, usually through a customs broker, files ten data elements no later than 24 hours before the cargo is loaded at the foreign port, including the seller, buyer, manufacturer, ship-to party, country of origin, HTS number, container stuffing location, and consolidator. The carrier files the other two. Late or inaccurate filings can bring liquidated damages of $5,000 per violation, up to $10,000 per ISF, and holds at the destination port.
How Endless handles it
Endless holds the supplier, product, and origin details from the purchase order that a broker needs for an ISF, so the filing starts from the same record as the order.
Frequently asked questions
Who files the ISF?
The importer is responsible for the ten importer elements, and most importers have their customs broker or forwarder file on their behalf. The ocean carrier files the vessel stow plan and container status messages, which are the remaining two elements.

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