Iran's Nuclear Programme and the NPT Framework
Iran is a signatory to the Nuclear Non-Proliferation Treaty (NPT, 1968), which obligates non-nuclear-weapon states not to develop nuclear weapons in exchange for access to peaceful nuclear technology and a commitment from nuclear-weapon states to disarm. Iran has consistently maintained that its nuclear programme is civilian in nature — for energy and medical isotope production — while the US, Israel, and European powers have alleged a weapons dimension.
The Joint Comprehensive Plan of Action (JCPOA), signed July 14, 2015, placed verifiable limits on Iran's uranium enrichment (capped at 3.67% purity, 300 kg stockpile), heavy water reactor activity, and centrifuge numbers, in exchange for sanctions relief. The US withdrew from JCPOA under the Trump administration in May 2018, triggering a gradual Iranian rollback of its commitments. By 2023, Iran had enriched uranium to 60% purity — below weapons grade (90%+) but far beyond the JCPOA ceiling.
- NPT opened for signature: 1968; entered into force: 1970; 191 state parties (India, Pakistan, Israel are non-signatories; North Korea withdrew in 2003).
- JCPOA (2015): Signed by Iran, P5+1 (US, UK, France, Russia, China + Germany), and the EU.
- US withdrew from JCPOA: May 8, 2018 (Trump); Biden attempted re-negotiations (2021-22) without success.
- Iran's enrichment level as of 2023: ~60% U-235 (weapons grade = 90%+).
- Khamenei's fatwa against nuclear weapons: issued early 2000s; not formally codified in law but treated as binding religious edict.
● Tracked since March 18, 2026 · last seen April 09, 2026 · updates as the daily brief publishes