Iran's parliament has voted to ban access to military sites and scientists as part of a future deal with world powers over its contested nuclear program.
But shortly after 199 lawmakers voted in favor of the bill, the parliament added amendments that would curtail its power to veto a deal between Tehran and six-world powers -- the United States, Britain, France, Russia, China, and Germany.
In a boost to President Hassan Rohani's government, the amendments instead give the right of supervision to the country's Supreme National Security Council.
The council includes government ministers, military commanders, and other top officials appointed by Supreme Leader Ayatollah Ali Khamenei.
It is chaired by Rohani, who is pushing hard for a nuclear deal, but is ultimately controlled by Khamenei, who will have the final word on any nuclear accord.
The June 21 bill calls for the complete lifting of all sanctions against Iran as a precondition to any final nuclear deal.
If passed, the bill could complicate ongoing talks in Vienna aimed at reaching a final accord before a self-imposed June 30 deadline.
On paper, parliament's powers include drafting legislation, ratifying international treaties, and investigating all national affairs.
In practice, it is weak compared with the presidency and nonelected institutions like the 12-member Guardians Council and the supreme leader's office.