Iran is expected to inform the UN nuclear watchdog of a timetable for inspection of a newly disclosed uranium enrichment plant.
The news comes three days before crucial talks between Tehran and world powers worried about the Islamic state's nuclear ambitions.
Last week's revelation of a second nuclear fuel facility, under construction south of Tehran, adds urgency to the rare meeting in Geneva on Thursday.
Iran's missile tests yesterday and Sunday added to tension.
US President Barack Obama has demanded that Iran come clean on its disputed nuclear programme and a White House spokesman yesterday urged 'immediate unfettered access' to the new site.
Iran has rejected Western condemnation of the new facility, saying it is legal and open to investigation to the UN International Atomic Energy Agency.
Press TV, Iran's English-language state television, said Iran's Atomic Energy Organisation chief Ali Akbar Salehi had noted that the plant was under construction within the framework of IAEA regulations, saying 'Iran has taken all the precautionary steps to safeguard its nuclear facilities.'
Press TV added: 'Iran says it will soon inform the International Atomic Energy Agency of a timetable for inspection of its recently announced nuclear facility.'
'Salehi said that his country will try to resolve the issue both politically and technically with the five permanent members of the UN Security Council plus Germany (P5+1) and the IAEA,' Press TV said on its website.
Ali Asghar Soltanieh, Iran's envoy to the IAEA, yesterday told the BBC he had had a couple of meetings with IAEA inspectors and it was agreed they would be given access to the site 'in the near future'. He gave no date.
The US and its Western allies have made clear they will focus on Iran's nuclear programme at the Geneva meeting. Iran has offered wide-ranging security talks but says it will not discuss its nuclear 'rights'.
Washington suspects Iran is trying to develop nuclear bomb capability. Iran, a major oil producer, says its nuclear work is solely for generating electricity.
'It is against our tenets, it is against our religion to produce, use, hold or have nuclear weapons or arsenal, how can we more clearly state our position, since 1974 we have been saying this,' Press TV quoted Mr Salehi as saying.
