Majlis on Sunday obliged the government to suspend all the voluntary steps Iran has taken in the past three years for confidence-building if International Atomic Energy Agency (IAEA) Board of Governors opted to refer Iran's case to UN Security Council on November 24.
Iran suspended uranium enrichment in Natanz in 2002 and signed Additional Protocol to Non-Proliferation Treaty (NPT) in 2003 to give 'objective guarantee' to UN nuclear watchdog that Iranian nuclear program will not be diverted from civilian purpose.
The Additional Protocol to NPT grants the IAEA short-notice inspection to all Iranian nuclear sites.
Out of 197 MPs present in the parliament, 183 MPs voted for, 10 MPs voted against the bill and three MPs abstained.
President Mahmoud Ahmadinejad said in his address to the World Summit in New York last September that Iranian nuclear program is transparent and open to IAEA inspection.
"Cameras of the UN nuclear watchdog have been installed on all Iranian nuclear sites to monitor them. Iranian nuclear program is civilian and in line with Safeguards of the IAEA," he said.
Meanwhile, Foreign Ministry spokesman Hamid-Reza Asefi on Sunday rejected the US media speculation that Iran disclosed a document to the agency about how to build bomb.
"It's a sheer lie being fabricated a few days ahead of meeting of Board of Governors by US and Israel." Islam has prohibited weapons of mass destruction and Iran never considers to manufacture nuclear arms, he said adding that Iranian nuclear program is merely for generating electricity.