Iran will allow snap inspections of its nuclear facilities if the UN Security Council returns the case to its nuclear watchdog, an Iranian official has said.
But Mohammad Saeedi, deputy head of Iran's Atomic Energy Organisation, said uranium enrichment will continue.
Iran halted snap inspections after the UN's atomic agency, the IAEA, decided to report Iran to the council.
On Friday the IAEA said Iran had failed to meet a council deadline to suspend its uranium enrichment programme.
"If the issue is returned to the International Atomic Energy Agency, we will be ready to allow intrusive inspections," Mr Saeedi told state television on Saturday.
"The enrichment will continue. But regarding the Additional Protocol, we will continue implementing the Additional Protocol as a voluntary measure."
The Additional Protocol of the Nuclear Non-Proliferation Treaty (NPT) allows inspections to be carried out at short notice. Iran halted implementation of the protocol in February.
The US and EU have accused Iran of seeking to develop nuclear weapons, a charge Iran has strongly denied.