U.S. Secretary of State Antony Blinken warns that Iran is running out of time to return to the Joint Comprehensive Plan of Action signed in 2015.
Iranian President Ebrahim Raisi announces that the country is ready to resume nuclear talks and to revive the Joint Comprehensive Plan of Action. Raisi also called on the U.S. to lift its sanctions against Iran.
Iran says that it has informed the International Atomic Energy Agency that it will no longer allow snap inspections of its nuclear facilities as of February 21. The snap inspections were a condition of the 2015 Iranian nuclear deal.
The International Atomic Energy Agency confirms that Iran has carried out its plan to produce uranium metal at a nuclear facility in Isfahan, a major breach of the 2015 Iran nuclear deal. Uranium metal is essential to making the core of a nuclear weapon.
The United States Secretary of State Mike Pompeo declares the 2015 nuclear accord with Iran as no longer in force. He also warns that the United States "is prepared to use our domestic authorities to impose consequences" for other countries that do not enforce the sanctions. Britain, France, Germany, China, and Russia oppose the snapback sanctions.
U.S. Secretary of State Mike Pompeo announces his intention to invoke the "snap back" provision of United Nations Security Council Resolution 2231, an endorsement of the Joint Comprehensive Plan of Action (JCPOA) which would reimplement all of the United Nations' sanctions on Iran. The U.S., however, had withdrawn from JCPOA in 2018.
French media reports that Iranian nuclear scientists began injecting uranium into centrifuges in the presence of International Atomic Energy Agency inspectors at the Fordow Fuel Enrichment Plant. Effectively it turns the plant from a research site into an active nuclear site, in further violation of the Joint Comprehensive Plan of Action.
The International Atomic Energy Agency states that Iran has complied with its commitments under the Joint Comprehensive Plan of Action, paving the way for international sanctions to be lifted by the United States and European Union.
United States Secretary of State Hillary Clinton demands that Iran respond soon to the "serious concerns" raised by the International Atomic Energy Agency report that Iran appeared to be working on nuclear bomb technology.