Importer Security Filing (ISF) or also known as 10+2; which requires containerized payload data, for security purposes, to be sent to the agency not less than 24 hours before products are stacked
onto a ocean vessel going to the U.S. (for example mother vessel, not feeder vessel) for shipment into the U.S. 10+2 implies that merchants/importers needed to submit 10 information components to
CBP, and 2 additional information reports (Container Status Messages and the vessel's Stow Plan)from the transporter.