An agreement between Iran and the International Atomic Energy Agency will give the U.N. watchdog access to all of Iran’s nuclear facilities and requires Tehran to report on the location of material at sites attacked earlier this year, the agency’s director general said Wednesday.

The accord, announced after a meeting in Vienna between IAEA Director General Rafael Grossi, Iranian Deputy Foreign Minister Abbas Araghchi and Egyptian Foreign Minister Badr Abdelatty, sets out procedures for inspection notifications and their implementation, Grossi told the agency’s board of governors. He said the document "includes all facilities and installations in Iran and it also contemplates the required reporting on all the attacked facilities including the nuclear material present at those," and that it will "open the way for the respective inspections and access." Details of the agreement were not immediately released.

Grossi described the document as technical but of "profound significance," saying it allows the IAEA and Iran to "resume cooperation in a respective and comprehensive way" and that the practical steps need to be implemented now. He did not specify when IAEA inspectors would gain access beyond noting the agreement establishes the procedures that would govern inspections.

Iran suspended cooperation with the U.N. nuclear watchdog after its parliament adopted a law that President Masoud Pezeshkian signed on July 2. That move followed a 12-day conflict in June in which Israel and the United States struck Iranian nuclear sites. Since the start of that fighting, IAEA inspectors have been largely unable to verify Iran’s stockpile of highly enriched uranium, a situation the agency has called "a matter of serious concern."

A confidential IAEA report said that as of June 13 Iran had 440.9 kilograms (972 pounds) of uranium enriched up to 60 percent. The agency has said that, by its yardstick, material enriched to 90 percent would be enough for roughly 10 nuclear weapons, though creating an actual weapon would require additional steps and expertise, such as integrating a detonator.

The only site the IAEA has inspected since the June fighting was the Bushehr nuclear power plant, where inspectors observed a fuel replacement operation conducted over two days beginning Aug. 27. Grossi’s remarks to the board came one day after the three-way meeting in Vienna was made public.

Araghchi told reporters the agreement responds to Iran’s concerns and security challenges and lays out technical requirements for cooperation, but he warned that Tehran would consider the accord terminated in the event of "any hostile act" against Iran, including the reimposition of U.N. sanctions.

On Aug. 28 France, Germany and the United Kingdom began a process to reimpose U.N. sanctions on Iran for what they say is noncompliance with the 2015 nuclear deal. The mechanism, known as a "snapback," was designed by diplomats who negotiated the original agreement to be effectively veto-proof at the United Nations and starts a 30-day clock that could restore sanctions unless the parties reach a diplomatic solution.

European officials have said they would be willing to extend that deadline if Iran resumes direct negotiations with the United States over its nuclear program, allows U.N. inspectors broader access to sites, and accounts for the quantities of highly enriched uranium identified by the IAEA.

Grossi emphasized the technical nature of the Vienna accord while stressing its immediate practical importance: establishing clear notification procedures and a framework for implementation that would permit inspectors to verify nuclear material and activities. The IAEA has not yet provided a timeline for when inspections covered by the new agreement would take place, and Iranian officials have tied continued cooperation to the absence of further hostile measures against Tehran.

The agreement represents a rare step toward restoring agency access after months of limited verification, but its implementation will depend on both sides following through on the technical procedures and on the broader diplomatic environment surrounding the potential reimposition of international sanctions.