The fourth round will launch the work on a comprehensive agreement on the Iranian nuclear program, Interfax reports.
The agreement is bound to close the Iranian nuclear dossier, to avert military dimensions of the nuclear program of the Islamic Republic and to lift international sanctions. Iran and the P5+1 group (five permanent members of the UN Security Council and Germany) approved a six-month intermediate deal in Geneva on November 4, 2013.
They pledged to draft the final agreement within twelve months from when the intermediate deal was concluded. The intermediate deal compelled Iran to suspend 20% uranium enrichment within six months and to keep the uranium enrichment levels at 5%.
In addition, Iran undertook to dispose of all uranium enriched to 20%, to suspend the construction of the Arak heavy water reactor, not to deploy new uranium enrichment centrifuges and to broaden the access of IAEA inspectors to its nuclear facilities.
In exchange the West promised to ease sanctions on the Islamic Republic. The intermediate agreements took effect on January 20, 2014.