# Customs classification process

*Last updated: 2026-06-22*

> When goods cross a border, the customs classification process determines which tariff code applies.

When goods cross a border, the customs classification process determines which tariff code applies. It is the systematic assignment of goods to a number under the Harmonized System (HS) – internationally a six-digit code, extended by most countries to eight or ten digits for national purposes. The resulting code governs the applicable duty rate, any import or export restrictions, and licensing or reporting requirements. In practice, customs specialists review product descriptions, technical data sheets, and intended use before committing to a tariff number and documenting the rationale. Misclassification can trigger duty recovery, seizure, or regulatory scrutiny. For complex goods – electronics, chemicals, machinery – binding tariff information (BTI) rulings issued by customs authorities provide legal certainty and protect importers from retroactive challenges.

**Source:** [https://www.wcoomd.org/en/topics/nomenclature/overview/what-is-the-harmonized-system.aspx](https://www.wcoomd.org/en/topics/nomenclature/overview/what-is-the-harmonized-system.aspx)

## Quick Facts

| Property | Value |
|---|---|
| Term | Customs classification process |
| Language | EN |
| Word count | 122 |
| Last updated | 2026-06-22 |
| Source | https://www.wcoomd.org/en/topics/nomenclature/overview/what-is-the-harmonized-system.aspx |

---

*Logistics Glossary — Freight Academy: [https://www.freight-academy.com/en/glossary/customs-classification-process](https://www.freight-academy.com/en/glossary/customs-classification-process)*

*Markdown mirror: [https://www.freight-academy.com/api/md/glossary/en/customs-classification-process](https://www.freight-academy.com/api/md/glossary/en/customs-classification-process)*

*JSON summary: [https://www.freight-academy.com/api/v1/glossary/customs-classification-process/llm-summary?lang=en](https://www.freight-academy.com/api/v1/glossary/customs-classification-process/llm-summary?lang=en)*