Parameters of the tentative Iran nuclear deal

Updated 1856 GMT (0256 HKT) April 2, 2015

After arduous talks that spanned 20 months, negotiators reached a landmark deal aimed at reining in Iran's nuclear program, announced on July 14. From left, European Union High Representative for Foreign Affairs and Security Policy Federica Mogherini, Iranian Foreign Minister Mohammad Javad Zarif, Head of the Iranian Atomic Energy Organization Ali Akbar Salehi, Russian Foreign Minister Sergey Lavrov, British Foreign Secretary Philip Hammond and U.S. Secretary of State John Kerry pose for a group picture at the United Nations building in Vienna on July 14.
Photos: Iran: Key players in the nuclear talks
After arduous talks that spanned 20 months, negotiators reached a landmark deal aimed at reining in Iran's nuclear program, announced on July 14. From left, European Union High Representative for Foreign Affairs and Security Policy Federica Mogherini, Iranian Foreign Minister Mohammad Javad Zarif, Head of the Iranian Atomic Energy Organization Ali Akbar Salehi, Russian Foreign Minister Sergey Lavrov, British Foreign Secretary Philip Hammond and U.S. Secretary of State John Kerry pose for a group picture at the United Nations building in Vienna on July 14.
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U.S. Secretary of State John Kerry has been spearheading negotiations on a possible deal to rein in Iran's nuclear program.
Photos: Iran: Key players in the nuclear talks
U.S. Secretary of State John Kerry has been spearheading negotiations on a possible deal to rein in Iran's nuclear program.
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Kerry, second from left, meets Iranian Foreign Minister Mohammad Javad Zarif, second from right, for talks in Lausanne, Switzerland, on Monday, March 16. At the far left is U.S. Secretary of Energy Ernest Moniz. At the far right is Ali Akbar Salehi, head of Iran's Atomic Energy Organization.
Photos: Iran: Key players in the nuclear talks
Kerry, second from left, meets Iranian Foreign Minister Mohammad Javad Zarif, second from right, for talks in Lausanne, Switzerland, on Monday, March 16. At the far left is U.S. Secretary of Energy Ernest Moniz. At the far right is Ali Akbar Salehi, head of Iran's Atomic Energy Organization.
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Iranian Supreme Leader Ayatollah Ali Khamenei meets with environmental officials in Tehran, Iran, on Sunday, March 8.
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