For items shipping to the United States

Under the new rule, before merchandise arriving by vessel can be imported into the United States, the "Importer Security Filing (ISF) Importer" buyer or their agent (e.g., licensed customs broker), must electronically submit certain advance cargo information to CBP in the form of an Importer Security Filing. This requirement only applies to cargo arriving in the United States by ocean vessel.

For more detailed information visit the Importer Security Filing page.