Aug 15, 2023 · diplomatic_engagement
Indirect U.S.-Iran nuclear negotiations resume through Oman as mediator
Following months of stalled talks, the United States and Iran resume indirect nuclear negotiations mediated by Oman. The talks focus on restoring the JCPOA framework without full U.S. re-entry, exploring limited agreements on sanctions relief and uranium enrichment caps. The Biden administration signals openness to a ''shorter, simpler'' deal that addresses mutual concerns without the full architecture of the original agreement. Iranian negotiators emphasize the need for concrete guarantees against future U.S. withdrawal and binding commitments to sanctions relief. The negotiations represent a tentative step toward de-escalation after years of confrontation, though fundamental disagreements remain on verification, regional activities, and the scope of sanctions removal.
Jan 5, 2020 · political
Iran announces end of all JCPOA uranium enrichment limits following Soleimani killing
Two days after the U.S. drone killing of Qasem Soleimani, Iran announces it will no longer observe any of the JCPOA's limits on uranium enrichment, including limits on the number of centrifuges, level of enrichment, stockpile size, and research and development. Iran says the decision is a response to the assassination, which it calls a U.S. act of terrorism. IAEA inspectors remain in the country but Iran begins blocking some access. European signatories activate the JCPOA dispute resolution mechanism.
May 8, 2019 · political
Iran announces partial JCPOA withdrawal ends limits on enriched uranium stockpile
Iranian President Hassan Rouhani announces that Iran will stop honoring JCPOA limits on its stockpile of low-enriched uranium and heavy water, giving remaining JCPOA parties 60 days to provide economic relief or face further Iranian nuclear escalation. Rouhani frames the move as a response to U.S. sanctions that have prevented Iran from receiving the deal's promised economic benefits. By early July, Iran announces it has exceeded the JCPOA's 300 kg limit on enriched uranium.
May 8, 2019 · policy-violation
Iran breaches the JCPOA's 3.67% enrichment cap
One year after US withdrawal, Iran officially announces it has exceeded the 3.67% uranium enrichment limit, crossing to 4.5%. Iran states it is responding proportionally to US economic pressure and European failure to provide promised trade benefits. The breach marks the beginning of Iran's systematic violations of JCPOA constraints.
May 8, 2018 · executive_order
Trump Withdraws United States from the JCPOA
President Trump signed a presidential memorandum on May 8, 2018, withdrawing the United States from the Joint Comprehensive Plan of Action and reimposing sanctions on Iran. The JCPOA, negotiated in 2015 under the Obama administration, had limited Iran's uranium enrichment to 3.67 percent and capped its enriched uranium stockpile at 300 kilograms under IAEA verification. Secretary of State Mike Pompeo announced that the U.S. would impose the highest level of economic pressure on Iran to force a "new deal" that addressed its missile program and regional activities alongside nuclear constraints.
