UN Watchdog Passes Resolution Demanding Iran Declare Nuclear Stockpiles and Grant Full Inspector Access

Vienna, Austria – The International Atomic Energy Agency’s 35-nation Board of Governors passed a U.S.-backed resolution on June 10, 2026, demanding that Iran provide complete information on its enriched uranium stockpiles and grant inspectors immediate access to verify the data, amid ongoing concerns over the country’s nuclear program following months of conflict.

The resolution, co-sponsored by the United States, Britain, France, and Germany, passed with 21 votes in favor, three against (Russia, China, and Niger), and 10 abstentions. It calls on Iran to supply “precise information on nuclear material accountancy and safeguarded nuclear facilities” and to allow the IAEA all necessary access “without delay” to confirm no diversion of nuclear material has occurred.

The move addresses the IAEA’s inability to verify the status of Iran’s nuclear facilities and material stockpiles for nearly a year. Prior to recent strikes, Iran had accumulated thousands of kilograms of enriched uranium, including near-weapons-grade material enriched up to 60%. The agency has been denied access to multiple sites damaged in the conflict, preventing confirmation of current inventories, locations, and safeguards compliance.

IAEA Director General Rafael Grossi has repeatedly expressed “increasing concern” over Iran’s lack of cooperation. The resolution emphasizes that full transparency is “essential and urgent” to fulfill the agency’s verification mandate under Iran’s NPT Safeguards Agreement and relevant UN Security Council resolutions.

Iran’s ambassador to the IAEA, Reza Najafi, denounced the resolution as “politically motivated,” “counterproductive,” and “legally flawed,” claiming it ignores Tehran’s cooperation at unaffected sites and complicates ongoing ceasefire and diplomatic talks. Iranian officials have warned of reciprocal measures and accused Western powers of using the IAEA for pressure rather than genuine verification.

The vote comes as indirect U.S.-Iran negotiations remain stalled, with President Donald Trump recently warning Tehran it will “pay the price” for delays. The resolution adds diplomatic pressure on Iran to account for its nuclear material while U.S. and allied military operations continue in the region. It stops short of immediately referring the matter to the UN Security Council but strengthens the case for further action if Iran remains non-compliant.

Western diplomats described the resolution as necessary to maintain international oversight and prevent any potential diversion of nuclear material during the chaos of recent hostilities. Critics of Iran’s program argue the lack of access raises proliferation risks, while supporters of diplomacy caution that overly confrontational measures could derail talks aimed at a longer-term agreement limiting Iran’s nuclear activities and reopening key shipping routes.

The IAEA Board’s decision underscores persistent international concerns over Iran’s nuclear opacity. Further quarterly reports and potential follow-up actions are expected as the agency seeks to reestablish robust monitoring capabilities in the country.