The Act was passed in Majlis plenary session on June 23 and was confirmed by the Guardian Council on June 24.
Under the law, the results of any nuclear talks with the G5+1 will be valid if sanctions are entirely and fully lifted, as envisioned by the Joint Comprehensive Plan of Action.
Termination of the sanctions must coincide with the first day Iran is observing its commitments to JCPOA.
The parliament obliged Foreign Minister Mohammad-Javad Zarif to provide Majlis with regular reports every six-month about implementation of JCPOA.
The Act also says that the International Atomic Energy Agency will have the permission to conduct conventional supervision on the nuclear sites within framework of the Safeguards Agreement.
It said access to military, security and sensitive non-nuclear locations, documents and scientists will be forbidden and all the approvals of the Supreme National Security Council should be observed.
It said there will be no limit to acquiring peaceful nuclear technology and knowledge and R&D and all the approvals of the National Security Council should be observed.
Note one of Clause III of the Act says per Articles 77 and 125 of the Constitution, the outcome of the talks should be offered to the Majlis.
Note 2 of Clause III also says Majlis National Security and Foreign Policy Commission should report to Members of Parliament every six-month on implementation of the JCPOA,IRNA reports.