the IAEA vehemently denied reports that Iran had blocked IAEA inspectors when they sought access to Iran's enrichment facility. On 11 March 2007, Reuters quoted IAEA spokesman Marc Vidricaire, "We have not been denied access at any time, including in the past few weeks. Normally we do not comment on such reports but this time we felt we had to clarify the matter ... If we had a problem like that we would have to report to the [35-nation IAEA governing] board ... That has not happened because this alleged event did not take place." On 30 July 2007, IAEA inspectors spent five hours at the Arak complex, the first such visit since April. Visits to other plants in Iran were expected during the following days. It has been suggested that access may have been granted in an attempt to head off further sanctions. August 2007 Report and Agreement between Iran and the IAEA An IAEA report to the Board of Governors on 30 August 2007 stated that Iran's Fuel Enrichment Plant at Natanz was operating "well below the expected quantity for a facility of this design," and that 12 of the intended 18 centrifuge cascades at the plant were operating. The report stated that the IAEA had "been able to verify the non-diversion of the declared nuclear materials at the enrichment facilities in Iran," and that longstanding issues regarding plutonium experiments and HEU contamination on spent fuel containers were considered "resolved." However, the report added that the Agency remained unable to verify certain aspects relevant to the scope and nature of Iran's nuclear program. The report also outlined a workplan agreed by Iran and the IAEA on 21 August 2007. The workplan reflected agreement on "modalities for resolving the remaining safeguards implementation issues, including the long outstanding issues." According to the plan, these modalities covered all remaining issues regarding Iran's past nuclear program and activities. The IAEA report described the workplan as "a significant step forward," but added "the Agency considers it essential that Iran adheres to the time line defined therein and implements all the necessary safeguards and transparency measures, including the measures provided for in the Additional Protocol." Although the workplan did not include a commitment by Iran to implement the Additional Protocol, IAEA safeguards head Olli Heinonen observed that measures in the workplan "for resolving our outstanding issues go beyond the requirements of the Additional Protocol."