Nuclear watchdog director confirms upcoming inspections at Iranian sites as peace deal progresses

The International Atomic Energy Agency (IAEA) has affirmed its intention to conduct inspections within Iran, a pivotal development stemming from the nation’s preliminary peace accord recently established with the United States. This confirmation arrives amidst a flurry of diplomatic activity and ongoing disagreements regarding the extent of access for international observers. The move is viewed as a crucial initial step in monitoring Iran’s nuclear program as part of broader de-escalation efforts in the region.

Rafael Grossi, the Director General of the global nuclear watchdog, explicitly stated that these inspections are indeed set to proceed. Speaking to reporters in Japan, Grossi indicated that the agency would soon finalize the specific modalities, including precise dates, operational procedures, and the locations designated for these visits. This operational planning underscores the technical commitment required to implement the terms of the nascent agreement.

A key element of the understanding signed last week explicitly mandates that any dilution of Iran’s highly enriched uranium stockpiles will occur under the direct supervision of the IAEA. This provision highlights the international community’s focus on mitigating proliferation risks associated with the material. However, not all parties share a unified interpretation of the accord’s immediate implications, particularly concerning the scope of access to sensitive sites.

International Atomic Energy Agency’s Stance on Oversight

Grossi underscored the unequivocal nature of the memorandum of understanding (MOU) signed by both presidents, emphasizing its clear directive for IAEA oversight. He highlighted that the document explicitly states, in bold letters, that nuclear activities involving material and facilities will be supervised by the agency. This firm position serves as the bedrock for the IAEA’s operational plans, irrespective of external political rhetoric. The Director General acknowledged the “war of words” unfolding but maintained that the fundamental signed agreement dictates the agency’s mandate, stressing that the timing of these inspections, whether in days or weeks, is important but not the defining factor for their eventual execution.

Diplomatic Engagements Amidst Regional Tensions

Concurrently with these developments, US Secretary of State Marco Rubio is engaged in a series of visits to Gulf nations, conducting discussions centered on the newly forged agreement. His itinerary included a meeting with UAE President Mohamed bin Zayed Al Nahyan, with subsequent stops planned for Kuwait and Bahrain.

These high-level diplomatic engagements are critical for building regional consensus and addressing concerns among allies regarding the stability implications of the US-Iran deal. The Secretary’s tour aims to reassure partners and garner support for the broader objectives of the peace initiative, emphasizing its potential to foster greater security across the Middle East.

Navigating the Strait of Hormuz and Economic Repercussions

A significant component of the initial US-Iran agreement involves the reopening of the vital Strait of Hormuz to international shipping, with Iran committing to allow transit while the United States pledges to lift its naval blockade on Iranian ports. This provision holds immense economic and geopolitical weight, as the strait is a crucial chokepoint for global oil supplies.

In a related humanitarian effort, the United Nations confirmed that some vessels have already traversed the strait under a coordinated scheme designed to evacuate thousands of sailors who had been stranded aboard ships due to the recent conflict. The facilitation of this passage signals an immediate, tangible benefit of the preliminary agreement, easing a pressing humanitarian crisis.

The broader market reaction to the de-escalation was also notable, with the price of Brent crude oil declining to below $75 (£57) per barrel. This marks the first instance of such a drop since the onset of the US-Israeli war on Iran. The dip in oil prices reflects a perceived reduction in geopolitical risk premiums, offering a potential reprieve for global energy markets.

Contentious Access to Nuclear Facilities

The path to full inspection access has not been without its challenges, marked by a public dispute between Washington and Tehran regarding the scope and timing of visits by UN nuclear inspectors. Following discussions in Switzerland with Iran’s chief negotiator, US Vice-President JD Vance initially asserted that Iran had “agreed to invite IAEA inspectors back into their country.”

However, this assertion was met with immediate pushback from Tehran. The following day, an Iranian foreign ministry spokesman countered Vance’s statement, declaring that “no detailed discussions” had occurred concerning such access. The spokesman further clarified that Iran had no immediate intentions of granting IAEA inspectors entry to nuclear facilities that had sustained damage from US bombings during a 12-day conflict between Israel and Iran in June 2025.

US President Donald Trump swiftly dismissed Iran’s counter-claims as “protestations and false statements to the contrary,” reiterating his stance that the country had “fully and completely agreed” to the inspections. This stark divergence in narratives highlights the deep-seated mistrust and communication challenges that continue to plague US-Iran relations, even in the context of a new agreement.

Grossi, observing this public disagreement, acknowledged the “war of words” as a part of political reality. Nevertheless, he firmly anchored the IAEA’s position in the memorandum of understanding, emphasizing that the document explicitly mandates the agency’s supervision of nuclear activities, facilities, and material, irrespective of political pronouncements. This distinction between political posturing and formal commitments is central to the IAEA’s mandate.

Further complicating the issue, Iranian Deputy Foreign Minister Kazem Gharibabadi publicly challenged the timing and conditions of access. He asserted through social media that any access to Iran’s damaged nuclear facilities and nuclear materials would only be considered within the framework of a final, comprehensive agreement with the US, and crucially, only after concrete steps had been taken to lift all sanctions. Gharibabadi explicitly dismissed any “media noise” as an attempt to impose facts on the ground, underscoring Iran’s demand for a phased approach tied to sanctions relief.

The Memorandum of Understanding: Key Provisions

The 14-point memorandum of understanding represents a foundational document, outlining the immediate steps and future commitments for both the United States and Iran. Under this accord, both nations have formally committed to entering negotiations for a final, comprehensive deal within a 60-day timeframe. This deadline establishes an urgent diplomatic window to solidify the preliminary understandings into a lasting framework.

A critical provision within the MOU addresses the disposition of Iran’s stockpiled enriched material. It stipulates that the parties have “agreed to resolve the disposition of stockpiled enriched material, pursuant to a mechanism that will be mutually agreed upon.” Furthermore, it explicitly states that the “minimum methodology to be down-blending on site under the supervision of the IAEA.” This clause is fundamental to managing proliferation risks, ensuring that Iran’s enriched uranium is rendered less potent under international oversight, a key demand of the international community.

Iran’s Nuclear Program: Capabilities and Concerns

The current state of Iran’s nuclear program remains a subject of intense international scrutiny. A recent report by the IAEA indicated that its inspectors were granted access to Iran’s Bushehr nuclear power plant earlier this month. However, the watchdog noted that it was still denied entry to other sensitive nuclear facilities that were reportedly bombed last June.

This restricted access means the IAEA is currently unable to provide precise information regarding the present size, composition, or exact whereabouts of Iran’s stockpile of enriched uranium. Furthermore, the agency cannot confirm whether Iran has suspended all enrichment activities. A significant portion of this stockpile is widely believed to be housed within underground tunnels at the Isfahan site, adding to the challenges of remote monitoring.

Enriched uranium carries a dual nature, capable of being used as fuel for nuclear reactors for peaceful energy generation, but also, at higher purity levels, as the core component for nuclear weapons. Before the commencement of the US-Israeli war with Iran on February 28, the IAEA had reported that Iran possessed 440 kilograms (970 lbs) of uranium enriched up to 60% purity. This level is considered close to weapons-grade material and, if further enriched to 90%, would theoretically provide enough fissile material for as many as 10 nuclear bombs.

Despite these capabilities and international concerns, Iran has consistently maintained that its nuclear activities are solely for peaceful purposes. Tehran adamantly insists that it has no intention of developing or acquiring nuclear weapons, reiterating its commitment to the non-proliferation of such armaments.

Historical Context of the Nuclear Accord

The current diplomatic efforts are set against the backdrop of a complex history, particularly the 2015 nuclear deal, formally known as the Joint Comprehensive Plan of Action (JCPOA). Under this landmark agreement with the US and five other global powers, Iran consented to significantly curtail its nuclear activities and permit continuous, rigorous monitoring by IAEA inspectors. In return, the nation received relief from severe economic sanctions that had crippled its economy.

However, the stability of this accord was undermined when then-US President Donald Trump unilaterally withdrew from the agreement in 2018 during his first term. Trump asserted that the deal was insufficient in preventing Iran from pursuing a nuclear weapon pathway and subsequently reinstated a comprehensive suite of US sanctions. In retaliation for the US withdrawal and renewed sanctions, Iran progressively began to breach the restrictions outlined in the original deal, particularly those pertaining to uranium enrichment levels and stockpile limits, escalating tensions and setting the stage for the current complex negotiations.