Upon arrival in this central province on Wednesday evening, Zarif said the JCPOA is one of the hottest issues in the US Congress.
It is a very important issue for the US internal policies, stressed Zarif.
There are pressures for rejecting the JCPOA in the US Congress, but there is a weak possibility for this, said the foreign minister adding that attempts to force the Congress to do so have been unfruitful so far.
The US Congress is under pressure of the political parties and groups as well as the Zionists lobby to reject the JCPOA, said the top diplomat.
Given the US regulations that give authority to the president to decide to how implement and execute laws, the possibility that President Barack Obama will fail to compel the Congress to approve the deal is weak, stressed Zarif.
Referring to the process of talks on the JCPOA in the Iranian parliament, Zarif said '(the chairman of the Atomic Energy Organization of Iran) Mr Salehi and I attend various Majlis sessions to give enough explanation about the issue.'
Asked about the removal of anti-Iran sanctions, Zarif said no practical action has been taken to this effect yet.
About his aim to travel to Isfahan, he said he is planned to open several projects and meet with provincial officials and the elite.
The development plans are to be inaugurated by ministers and top officials in different parts of the country coincident with the Government Week, on August 24-30, in Iran.
The Government Week marks the martyrdom anniversary of the former Iranian President Mohammad Ali Rajaie and his Prime Minister Mohammad Javad Bahonar who were martyred in a bomb blast 34 years ago by the terrorist Mojahedeen Khalq Organization (MKO).
Iran and the six world powers reached a landmark nuclear agreement on July 14 in the Austrian capital.
Under the JCPOA, limits will be put on Iran’s nuclear activities in exchange for, among other things, the removal of all economic and financial bans against the Islamic Republic.
The UNSC on July 20 unanimously adopted a draft resolution turning the JCPOA into an international law. All 15 members of the UN body voted for the draft UN resolution in New York, setting the stage for the lifting of the Security Council sanctions against Iran.