---
title: "India-US Civil Nuclear Deal (123 Agreement) — Definition"
description: "The India-US Civil Nuclear Deal (123 Agreement) enables nuclear cooperation despite India's NPT status, impacting global nonproliferation efforts."
url: "https://modeldiplomat.com/learn/glossary/india-us-civil-nuclear-deal"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The India-US Civil Nuclear Deal is a 2008 bilateral agreement permitting full civil nuclear cooperation and trade between the two states despite India remaining outside the NPT.
- Why is it called the 123 Agreement?
- Did the deal require India to join the NPT or stop testing nuclear weapons?
- How does the Hyde Act differ from the 123 Agreement?
- Why did so little nuclear commerce follow the deal?

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

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## Positions at a glance

### Supporters

The agreement was signed into completion when Secretary of State Condoleezza Rice and External Affairs Minister Pranab Mukherjee executed it in Washington on October 10, 2008, following President Bush's signing of the approving legislation (Public Law 110-369) on October 8, 2008. Domestically, the deal nearly collapsed the United Progressive Alliance government in New Delhi: the Left Front withdrew support in July 2008, forcing a confidence vote that the Singh government survived on July 22, 2008. Subsequent commercial follow-through proved slow, hampered chiefly by India's Civil Liability for Nuclear Damage Act of 2010, whose Section 17(b) supplier-liability provision deterred American firms such as Westinghouse and GE-Hitachi from finalizing reactor contracts.

### Opponents

The 123 Agreement should be distinguished from the Nuclear Non-Proliferation Treaty, which India has never joined and which the deal pointedly did not require India to sign; India was instead granted a bespoke exemption that critics argued created a precedent undermining the NPT regime. It is also distinct from the IAEA Additional Protocol, which India signed in 2009 in a limited form applying only to its designated civilian facilities, unlike the comprehensive verification accepted by non-weapon states. Finally, the 123 Agreement differs from the Hyde Act: the Hyde Act is US domestic enabling legislation containing non-binding policy provisions and reporting requirements, whereas the 123 Agreement is the binding bilateral instrument, and India has consistently maintained that only the latter governs its obligations.

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Example

On September 6, 2008, the 45-member Nuclear Suppliers Group, meeting in Vienna, granted India a consensus waiver from its full-scope safeguards rule, clearing the way for the 123 Agreement signed in Washington on October 10, 2008.

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