"Seven more practical steps in regards to cooperation with the (International Atomic Energy) Agency was agreed" that need to be implemented by May 15, Iran's envoy to the Vienna-based body, Reza Najafi said.
The remarks reported by Iranian media were attributed to a joint statement that came after two days of talks between five IAEA experts and Iranian nuclear officials led by Najafi.
No elements of the deal were publicised and Najafi reportedly said IAEA director general Yukiya Amano would brief the agency's board of governors.
Describing the talks however, Najafi said "constructive technical meetings" had assessed "the progress in implementation of practical steps" that was required of Iran under a framework deal agreed on November 11.
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The deal required Tehran to take six practical steps that included visits to the unfinished site of a so-called heavy water research reactor in Arak and a uranium mine in the south.
Also required from Iran was information on future research reactors, identifying sites of new nuclear power plants, and clarification on Iranian statements regarding additional enrichment facilities and laser enrichment technology.
The November deal, struck after two years of on-off talks, was separate from a landmark agreement reached with world powers the same month that has placed temporary curbs on Iran's nuclear activities.