The Iranian delegation, led by the foreign minister, Mohammad Javad Zarif, only wants a vague joint statement, while the US secretary of state, John Kerry, needs to bring back specifics to Washington to convince Congress not to impose new sanctions.
The compromise, say European diplomats, would be a joint statement of understanding and two or three pages of agreed “parameters” setting out points agreed by Iran and the six world powers taking part in the Lausanne talks.
Those details would not be made public but would be briefed to governments and to Congress.
The parameters would include Iran’s enrichment capacity and its allowed stockpile of enriched uranium.
They would describe the redesign of Iran’s heavy-water reactor in Arak in such a way as to produce only tiny amounts of plutonium as a byproduct. But a few issues were still unresolved on Thursday morning. The main restrictions on Iran’s nuclear programme would last 10 years, but some would last for a few years beyond that,
including curbs on Iran’s development work on new centrifuges. What kind of curbs and how long they would last remain a matter of dispute. So does the timing of the lifting of some UN sanctions, including an arms embargo
and a ban on the transfer of dual-use technology.....snip~
Iran nuclear talks inching towards joint statement, say European diplomats | World news | The Guardian