---
title: "Antidumping/countervailing duties — Definition & Meaning"
description: "Antidumping and countervailing duties are tariffs to offset unfair trade practices. Essential for trade policy, they protect domestic industries."
url: "https://modeldiplomat.com/learn/glossary/antidumping-countervailing-duties"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- Antidumping and countervailing duties are trade remedies imposing tariffs to offset, respectively, foreign goods sold below fair value and goods benefiting from foreign government subsidies.
- What is the core difference between antidumping and countervailing duties?
- Which agencies administer AD/CVD investigations in the United States?
- What three elements must be proven to impose these duties under WTO law?
- How do AD/CVD measures differ from safeguard measures?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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In 2018 the U.S. Department of Commerce and USITC imposed antidumping and countervailing duties exceeding 200% on Chinese imported aluminium foil, finding both below-fair-value pricing and actionable government subsidies injuring domestic producers.

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