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Nuclear Non-Proliferation Treaty (NPT) and IAEA Safeguards

The NPT is the cornerstone of international nuclear non-proliferation architecture, and Iran's compliance with IAEA obligations is central to the dispute.

Key details
  • NPT entered into force on 5 March 1970. As of 2024, 191 states are party; India, Pakistan, Israel are non-signatories; North Korea withdrew in 2003.
  • NPT has three pillars: non-proliferation, disarmament, and peaceful use of nuclear energy.
  • Article II of the NPT prohibits non-nuclear weapon states (NNWS) from acquiring nuclear weapons. Iran, as an NNWS party to the NPT, is bound by this.
  • Article III of the NPT requires NNWS to accept IAEA comprehensive safeguards. Iran signed its comprehensive safeguards agreement in 1974.
  • The IAEA Board of Governors found Iran in non-compliance with its safeguards agreement in September 2005, triggering UN Security Council resolutions.
  • The Additional Protocol (AP) is a supplementary agreement to comprehensive safeguards, providing inspectors broader access; Iran implemented the AP under the JCPOA but suspended it after the US withdrawal.
  • IAEA Director General Rafael Grossi has repeatedly stated Iran's nuclear programme has "no credible civilian explanation" at current enrichment levels.
In the news

Tracked since February 17, 2026 · last seen July 24, 2026 · updates as the daily brief publishes

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