Iran: IAEA Refers Tehran to UN Security Council, a First in 20 Years

The Board of Governors of the International Atomic Energy Agency (IAEA) adopted a resolution on Wednesday, 9 September 2026 in Vienna, referring Iran to the UN Security Council for failing to comply with its nuclear safeguards obligations. This marks the first such referral concerning Tehran in twenty years.

The resolution received 23 votes out of the 35 members of the Board of Governors. Russia, China, and Niger voted against it, eight countries abstained, and one member did not participate in the vote, according to the Associated Press. The resolution was presented by the United States, the United Kingdom, France, and Germany.

This decision extends a resolution adopted on 12 June 2025, in which the Board of Governors had noted Iran’s “non-compliance” with its safeguards obligations. According to Reuters, a new resolution was necessary to formally transmit this finding to the Security Council.

The dispute notably concerns a long-running investigation into traces of uranium found at several undeclared sites. Tehran maintains that its nuclear program is exclusively for peaceful purposes and rejects accusations that it seeks to develop nuclear weapons.

The standoff has also intensified over inspectors’ access to facilities affected by military strikes. Rafael Grossi, the IAEA’s Director General, stated this week that the lack of information on certain sites and associated nuclear materials is a serious proliferation concern. The Agency estimates that Iran held 440,9 kg of uranium enriched up to 60% before the strikes, but has since been unable to verify the exact status of this entire stockpile.

A Case Now Before the Security Council

The referral opens the possibility of review by the Security Council, which has powers including imposing sanctions or asset freezes. However, punitive action remains uncertain: Russia and China, which voted against the resolution in Vienna, both hold veto rights on the Council.

Iran condemned the decision as “political.” In a statement published Wednesday by its mission to the United Nations in Vienna, Tehran attributed the current crisis to American and Israeli attacks and accused Western powers of instrumentalizing the IAEA. Iranian Ambassador Reza Najafi said his country would cooperate with the Agency as long as security conditions allowed.

The vote comes as military tensions between Iran and the United States have once again escalated in the Gulf and around the Strait of Hormuz. Recent exchanges of strikes have notably targeted ships and energy-related infrastructure, adding a security dimension to the nuclear and diplomatic dispute with Washington..

IAEA Demands Verifiable Safeguards

The adopted text requests the IAEA Director General to transmit the resolution, along with previous relevant decisions, to the Agency’s member states, the Security Council, and the United Nations General Assembly. It also calls on Iran to promptly address its non-compliance so that the IAEA can provide necessary assurances regarding the absence of nuclear material diversion.

The IAEA continues to present the resumption of inspections and clarification of safeguards issues as essential conditions for a comprehensive assessment of Iran’s program. The resolution of 9 September now places this dispute under the Security Council’s review, without prejudging any measures its fifteen members may decide to adopt.