VIENNA -- Iran took a hard line Thursday on two of the biggest demands of world powers in a final nuclear accord.
The country rejected any extraordinary inspection rules and threatened to ramp up enrichment of potential bomb-making material if the United States and other countries re-impose sanctions after the deal is in place.
Diplomats are meeting in Vienna as the U.S., Iran and five other countries try to clinch a comprehensive deal that would limit Iran's nuclear program for a decade in exchange for relief from some economic sanctions. Western nations fear Iran's nuclear program could be used to create weapons, while Iran has said it is used for civilian purposes, such as power production and the creation of medical isotopes.
A senior Iranian negotiator said the United Nations nuclear agency's standard rules governing access to government information, sites of interest and scientists should be sufficient to ensure that Iran's program is solely for peaceful purposes. Anything beyond that, he said, would be unfair.
But the U.S. and some other negotiating countries want Iran to go further.
"We should be realistic," said the Iranian official, who spoke on condition of anonymity because he was not authorized to speak about the talks.
The official also questioned the legitimacy of countries that don't accept the International Atomic Energy Agency's jurisdiction who are demanding Iran be subject to tougher requirements than any other nation.
The official likely was making reference to Israel, a state widely presumed to maintain an undeclared nuclear arsenal.
The RIA-Novosti news agency reported that Russia also backed Iran's position that additional inspection guidelines for Iran weren't necessary.
Iran has committed to implementing the atomic agency's "additional protocol" for inspections and monitoring as part of an accord. The protocol gives the agency expanded access to declared and undeclared nuclear sites and to the sensitive information of the more than 120 governments that accept its provisions.
But the rules don't guarantee monitors can enter any site they want to and offer no specific guidance about sensitive military sites -- an issue of particular interest with Iran, given the long-standing allegations of secret nuclear weapons work at its Parchin base near Tehran.
Instead, the agency's regulations allow governments to challenge such requests and offer alternative proposals for resolving concerns, such as providing additional documents or access to nearby locations.
And for that reason, U.S. officials have regularly stressed that rules for inspections in an agreement with Iran would have to go beyond those laid out by the agency, including even a "dispute resolution process" to force Iran to open up facilities, if necessary.
Even as Iran's supreme leader, Ayatollah Ali Khamenei, has rejected such access, U.S. officials have sought to differentiate between what Iranian officials were saying to appease hardliners in the country and what they were promising in the negotiating room.
Tehran says its program is solely for peaceful energy, medical and research purposes, but wants a deal to level the mountain of sanctions that have crippled its economy.
President Barack Obama, hoping to calm those who oppose the deal because they don't trust Iran to hold up its end, has said the U.S. would maintain the ability to snap sanctions back into place if Iran cheats.
But the Iranian official said that ability goes two ways.
If Iran is facing the re-imposition of penalties, and the U.S. and its partners don't uphold their commitments to provide economic relief, he said "Iran has the right to go back to its program as it wishes."
The official didn't spell out what that meant, but Iran would have several options, including installing new centrifuges or enriching uranium at levels closer to weapons-grade.
If the deal is good, however, the official said the Islamic Republic would have no need to revert back to its previous capacities.
Russia's deputy foreign minister Sergei Ryabkov said his government also opposes any automatic re-imposition of international sanctions. Russia and the United States are negotiating alongside Britain, France, Germany and China.
There were few public signs of progress as the high-level negotiations entered a sixth day Thursday after diplomats blew through a June 30 deadline and extended an interim accord by a week. Work was progressing, albeit slowly, officials said.
"Not at breakthrough moment yet," British Foreign Secretary Philip Hammond said Thursday on Twitter.
Hammond had a morning meeting with U.S. Secretary of State John Kerry, who also consulted top diplomats from China, France, Germany and the European Union. Kerry met Iranian Foreign Minister Mohammad Javad Zarif late Thursday.
Speaking at the Vienna-based Organization for Security and Cooperation in Europe, German Foreign Minister Frank-Walter Steinmeier said all participants had "the serious intention to finalize a deal," but cited numerous unresolved issues.
"The last steps are the most difficult ones," he told reporters.
Negotiators have given themselves until at least Tuesdayto reach agreement.
A Section on 07/03/2015