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"Though we have acheived progress, our work is not over. That is why I support the mission of the Arms Control Association. It is, quite simply, the most effective and important organization working in the field today." 

– Larry Weiler
Former U.S.-Russian arms control negotiator
August 7, 2018
The P4+1 and Iran Nuclear Deal Alert

Flags of the Iran Deal Negotiating Partners

Periodic alerts providing news and analysis on the negotiations and implementation of the Joint Comprehensive Plan of Action between the P5+1 (China, Germany, France, Russia, the United Kingdom, and the United States) and Iran over the latter's nuclear program. To receive these by email, subscribe to our regular updates list.


  • Biden Officials Express Support for Rejoining Iran Nuclear Deal
    January 28, 2021
    Biden officials continue to express their support for U.S. re-entry to the JCPOA, but caution that restoring the agreement may take time. Iran supports the restoration of the deal but is also pursuing steps in further violation of its obligations under the JCPOA in accordance with its December 2020 nuclear law.
  • Iran Passes Nuclear Law
    December 10, 2020
    Iran's parliament and Guardian Council passed legislation requiring Iran to significantly rachet up its nuclear activities in 60 days. That legislation passed the same day that Iran informed the IAEA of its intention to install new advanced centrifuges at the Natanz enrichment facility, marking a further violation of the nuclear deal and increasing pressure on President-elect Biden to restore U.S. diplomacy with Iran and compliance with the JCPOA.
  • UN Restrictions on Iran’s Arms Trade Expire
    October 28, 2020
    The UN arms embargo on Iran expired on October 18, freeing Iran to buy and sell conventional weapons. The Trump administration imposed a new round of sanctions on Iran, and Iran announced the construction of a new facility at Natanz to replace what was damaged during the July sabotage attack.
  • UN Defies United States on Sanctions Snapback
    September 24, 2020
    The United Nations again dismissed U.S. efforts to reimpose sanctions on Iran that were lifted as a result of the nuclear deal, and Secretary-General Guterres told the Security Council he would not take steps to implement those measures. Amid U.S. efforts to block Iranian arms sales, Iran announced two new missiles and Iranian President Rouhani criticized the U.S. sanctions regime against Iran.
  • Security Council Rejects Iran Arms Embargo Extension
    August 17, 2020
    The UN Security Council rejected a U.S. resolution to extend the UN arms embargo on Iran. Iran demonstrated its new missile capability and Elliot Abrams as named the U.S. Special Envoy for Iran, replacing Brian Hook.

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