Instruments of International Traffic, also known as IIT or 10.41a, is a U.S. shipment type used for goods clearing through CBP. It permits the release of shipments at the border that consist of skids, containers, and similar items.

To qualify as Instruments of International Traffic, the goods must be suitable for repeated use, either arrive containing merchandise or arrive empty to be filled with goods intended for export to a foreign country, and be covered by a continuous bond filed by either the importer or the carrier on Customs Form 301.

Goods entering under the Instruments of International Traffic designation are exempt from duty and tax.