---
title: "CAATSA and India: S-400, Waivers, Section 231"
description: "CAATSA and India: the U.S. law threatening sanctions over India's $5.4bn S-400 deal with Russia, the Section 231 waiver debate, and why no sanctions followed."
url: "https://modeldiplomat.com/learn/glossary/caatsa-and-india"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- CAATSA is a 2017 U.
- S.
- Has the United States ever imposed CAATSA sanctions on India?
- What is the CAATSA waiver and does India have one?
- Why does CAATSA specifically affect India's defence procurement?

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

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In October 2018, India signed a US$5.4 billion contract to buy Russian S-400 missile systems during Putin's New Delhi summit with Modi, directly exposing the deal to CAATSA Section 231 sanctions that Washington ultimately declined to impose.

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