UN nuclear watchdog chief Rafael Grossi holds a press conference on the opening day of the International Atomic Energy Agency’s (IAEA) quarterly Board of Governors meeting in Vienna, Austria, Sept. 8, 2025. Photo: REUTERS/Elisabeth Mandl

Time is running out in talks between the UN nuclear watchdog and Iran on how to fully resume inspections in the Islamic Republic, the watchdog’s chief Rafael Grossi said on Monday, adding that he hoped the discussions would conclude within days.

The International Atomic Energy Agency has not had access to Iran‘s key nuclear facilities since the United States and Israel bombed them in June. Iran passed a law after the attacks suspending cooperation with the IAEA and saying any inspections had to be approved by its Supreme National Security Council.

The IAEA and Iran are now in talks on the “modalities” of a full resumption of inspections, though Grossi says that does not alter Iran‘s duty to allow verification measures such as inspections as a party to the nuclear Non-Proliferation Treaty.

“There is still time, but not much. Always enough when there is good faith and a clear sense of responsibility,” Grossi said in a statement to a quarterly meeting of the IAEA’s 35-nation Board of Governors.

“Progress has been made. It is my sincere hope that within the next few days it will be possible to come to a successful conclusion of these discussions in order to facilitate the resumption, the full resumption, of our indispensable work with Iran,” he added.

Their talks are taking place against the backdrop of Europe’s top three powers having initiated a 30-day process on Aug. 28 to re-impose sanctions on Iran. The curbs were lifted under a 2015 nuclear deal between Iran and major powers that unraveled after President Donald Trump pulled the US out of it in 2018.

Those three powers – France, Britain and Germany, known as the E3 – have said they will go ahead with re-imposing sanctions under the so-called “snapback” process unless IAEA inspections fully resume in Iran, and Tehran accounts for its large stock of near-weapons-grade uranium and resumes nuclear talks with the United States.

“I am confident that with these practical steps [on inspections] in place, other important diplomatic consultations and processes will find a more promising ground upon which to advance towards positive outcomes,” Grossi said, apparently referring to broader diplomacy such as Iran-E3 discussions.

In Tehran, Iran‘s foreign ministry said the talks with the IAEA were “positive” but had not yet reached a conclusion and that no specific time frame was determined for the next round of talks.

“On Saturday, the third round of negotiations ended and their results are currently being reviewed in Tehran by relevant authorities and we will announce the next steps when this review is finalized,” ministry spokesperson Esmaeil Baghaei told a weekly press conference on Monday.