Numerous other sanctions remain in place, however. In exchange, certain worldwide sanctions that had been in place against Iran for years would be lifted. Foreign Minister Mohammad Javad Zarif said in a tweet that Washington would first have to remove sanctions before Tehran would consider changing its current enrichment processes. That has "no credible" civilian use, the diplomats said.
The Joint Comprehensive Plan of Action, or JCPOA, was formed in July 2015.
Reporting from the Iranian capital, Tehran, earlier Thursday, FRANCE 24's Reza Sayah said Iran has made its position on re-entering the deal clear.
The Biden administration also told the United Nations earlier on Thursday it was rescinding a Trump administration claim that U.N. sanctions against Iran "snapped back" and should be enforced. Asked during the interview with CBS Evening News, whether the U.S. will lift sanctions first in order to get Iran back to the negotiating table, Biden said "No".
The announcement came after Secretary of State Antony Blinken met virtually with his counterparts from the three European co-signers of the deal.
Following reports of Merkel's phone call, Iran's supreme leader, Ayatollah Ali Khamenei, responded with counterdemands of "action, not words" from the United States if it really wants to revive the agreement. "We'll follow ACTION w/ (with) action".
"Words and promises are no good".
Iran reacted coolly to Thursday's announcement.
This would involve Washington revoking Trump's 2018 withdrawal and green-lighting an Iranian request for an emergency International Monetary Fund loan, while Iran freezes "the most problematic aspects" of its nuclear programme, he said.
Grossi, who heads the UN-backed nuclear watchdog group, seeks to foster an agreement allowing the continuation of the agency's inspections and verification activities in the country, the organization said Wednesday.
Mikhail Ulyanov, Russia's ambassador to global organizations in Vienna including the worldwide Atomic Energy Agency, called on the USA and Iran to act in unison to return to the nuclear accord and to avoid an unnecessary standoff. The other nations involved in the original negotiations were China, France, Germany, Russia, and the UK.
However, Iran has said it will stop some of the inspections next week if the West doesn't implement its own commitments.
Tehran's representative to the IAEA, Kazem Gharibabadi, has notified the United Nations that Iran will suspend compliance with the Additional Protocols on February 23.
He said Iran would cease to adhere to the so-called Additional Protocol, an arrangement that provides the IAEA broad access and information regarding Iran's nuclear program, including both declared and undeclared facilities. "If Iran acquires a nuclear weapon, it will be nothing but a nightmare", he added.
"From Tehran's point of view as they're watching what's happening in Paris today, they want the European signatories to the deal and Washington to get together and take a substantial and significant step towards restoring this deal and towards lifting the snactions that were imposed by Washington during the Trump's administration's "maximum pressure" campaign", said Sayah.
Upcoming Iranian presidential elections in June add another risk to forging a lasting deal.