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.


  • Kelsey Davenport and Julia Masterson
    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.

  • Julia Masterson and Kelsey Davenport
    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. 

  • Kelsey Davenport and Julia Masterson
    October 28, 2020
  • Julia Masterson and Kelsey Davenport
    September 24, 2020
  • Kelsey Davenport and Julia Masterson
    August 17, 2020