Here is background info on the deal:
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Has Iran left the 2015 nuclear deal?
Although Iran has violated the deal since the Trump Administration abandoned it and reinstated sanctions in 2018, it has not formally left the agreement. Negotiations between China, France, Germany, Iran, Russia, the United Kingdom and the United States to restore the agreement were
underway for two years and were close to reaching a deal in August 2022 but they
broke down. In the meantime, Iran has continued to walk back from its commitments under the agreement. In 2023, the United States and Iran again
began unofficial talks, although both sides denied that they were pursuing an interim deal. In April 2025,
Iran began negotiations with the the new Trump Administration in the U.S. to work towards a deal on its nuclear programme.
Is Iran complying with the 2015 nuclear deal?
Since July 2019, Iran has taken a
number of steps that violate the agreement. Iran has increased its enrichment of uranium-235 to 60% and 20% instead of the 3.67% agreed to under the JCPOA and has exceeded the limit on its uranium stockpile agreed to under the JCPOA. It also has installed and operates centrifuges in excess of JCPOA limits and has re-started enrichment at the Fordow facility. In addition, while Iran continues to comply with its Comprehensive Safeguards Agreement with the IAEA,
since February 2021, Iran stopped implementing the other monitoring measures agreed to in the JCPOA. Iran took some steps following a March 2023 agreement with the IAEA to increase inspections, but this still
falls short of what is necessary to comply. In November 2024, IAEA Director General, Rafael Grossi, visited Iran and toured nuclear facilities at Fordow and Natanz where he visited the enrichment plants that are under IAEA safeguards.
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Here is the deal details:
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Is Iran going to develop nuclear weapons now?
The United States and the IAEA
continue to assess that Iran is not currently pursuing weapons-related activities. Steps towards the capacity to produce nuclear weapons are still very concerning, including Iran’s enrichment of uranium to higher levels and rejection of international inspections.
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The excess enriched uranium Iran has was sold on the open market.