The IAEA informed member states that it was “concerned that Iran implemented a substantial change in the design information of FFEP [Fordow Fuel Enrichment Plant] in relation to the production of high enriched uranium without informing the Agency in advance… This is inconsistent with Iran’s obligations under its Safeguards Agreement and undermines the Agency’s ability to adjust the safeguards approach for FFEP and implement effective safeguards measures at this facility”. The IAEA further noted that “the Agency has increased the frequency and intensity of its verification activities at FFEP. However, some other safeguards measures are still required and are being discussed with Iran”. The head of the Atomic Energy Organisation of Iran characterised the report as “incorrect”, asserting: “We immediately provided the explanation [to the IAEA]… the agency’s inspector found out they had made a mistake”.