President of Iran Hasan Rohani has issued a related order on September 5.
According to the order, Iranian Ministry of Foreign Affairs will bear responsibility for nuclear issues.
Earlier, reports were spread that Supreme National Security Council of Iran will not deal with the nuclear issues any more. At the same time, it was reported that the Foreign Ministry will deal with the nuclear issues and the delegation to hold discussions with six nations will be led by Foreign Minister Mohammad Javad Zarif.