Back to trade guides

Importing into the United States | Importer responsibility and tariff checks

Polymer pellets in sample containers at a container port

Before agreeing on a delivered price, establish who is the official importer, or Importer of Record, responsible for the declaration. A broker can manage the clearance process, but responsibility for compliance remains with the importer.

Product code, origin and product regulations

Obtain the technical description and composition of the goods and check the classification in the US HTS. Also check the country of origin and the rules of the regulatory agencies that apply to that type of product. Ask the broker to list customs duties and any additional measures linked to the product and origin separately in the estimate.

Example | Polymer materials

The phrase "plastic materials" is not enough for a commercial decision. State whether the product is granules or a manufactured part, and give the broker its technical data sheet with composition and use. Before booking transport, decide about the entry documents and the possibility of product-specific requirements. Check the rate you are using again close to the time of declaration.

CBP guide to importer and broker responsibility · Official US HTS schedule

Pre-arrival controls depend on the mode of transport

For ocean cargo, check before loading whether the shipment is subject to Importer Security Filing and who submits the data. For every mode of transport, confirm with your broker the need for a customs bond and any product permits. Match the estimate with the current HTS version and any supplementary measures linked to origin, and record the date you checked. CBP import and export guide

Sources last reviewed: 3 November 2026. Check the current rules for your specific goods with the relevant authority before you trade.