Grand Ayatolah Ali Khamenei is the Chief of State of Iran and has the final say.
In the Iranian system the elected parliament and president have limited powers. By far the single most powerful person is Chief of State Supreme Leader Grand Ayatollah Ali Khamenei. He has the final say. No other mullah, ayatollah or marja’a can override Ayatollah Khamanei’s fatwa. It is irrevocable. In addition to his political position--within the Shiite version of Islam he is what is known as a marja'a. Ayatollah Sistani in Iraq is also a a marja'a. A fatwa is a final religious decision absolutely binding on all Shiites within that marja'a's domain. All fatwas issued by a maja'a are written down and publicly announced. They carry almost as much weight as sacred scripture.
Ayatollah Khamenei issued a fatwa against nuclear weapons last August. Even if other mullahs or ayatollahs would disagree or make a contrary declaration - Ayatollah Khamanei's decision would over ride them and would be the final word in matters of the Iranian state and to any Shiite believers within Ayatollah Khamenei's domain which would include almost all Iranian Shiites.
This is the statement regarding Ayatollah Khamanei's fatwa which comes from the website of the Islamic Republic of Iran - link:
http://www.irna.ir/en/news/view/menu-236/0508104135124631.htmIran-Nuclear-Statement
Iran is a nuclear fuel cycle technology holder, a capability which is exclusively for peaceful purposes, a statement issued by the Islamic republic at the emergency meeting of the Board of Governors of the International Atomic Energy Agency (IAEA) read here Tuesday evening.
The Leader of the Islamic Republic of Iran, Ayatollah Ali Khamenei has issued the Fatwa that the production, stockpiling and use of nuclear weapons are forbidden under Islam and that Iran shall never acquire these weapons, it added.
The full text of the statement is as follows:
"Madam chair, colleagues,
"We meet when the world is remembering the atomic bombings of the civilians in Hiroshima (Aug 6) and Nagasaki (Aug 9) sixty years ago.
The savagery of the attack, the human suffering it caused, the scale of the civilian loss of life turning individuals, old and young, into ashes in a split second, and maiming indefinitely those who survived should never be removed from our memory. It is the most absurd manifestation of irony that the single state who caused this single nuclear catastrophe in a twin attack on our earth now has assumed the role of the prime preacher in the nuclear field while ever expanding its nuclear weapons capability.
"We as members of the Non-Aligned Movement (NAM) are proud to underline that none of the NPT members of the NAM rely on nuclear weapons in any way for their security. That is not the case of many other states, who either possess nuclear weapons or are member of nuclear-armed alliances and it is such states that have taken on the self-assigned role of denying Iran its legal rights under the NPT to access the peaceful uses of nuclear technology in conformity with the treaty's non-proliferation obligations.
"Indeed, it is not only Iran but also many members of NAM that are denied the peaceful uses of nuclear technology by some of the NPT nuclear-weapon states and their allies through the mechanisms of export controls and other denial arrangements. In 1995, they adopted the so-called "Iran clause" under which they agreed to deny nuclear technology to Iran in any circumstances.
"You can then understand, why Iran after being denied nuclear technology in violation of the NPT, had no other option but to rely on indigenous efforts with precaution on full transparency and we succeeded in developing our nuclear technology. Iran is a nuclear fuel cycle technology holder, a capability which is exclusively for peaceful purposes.
"The Leader of the Islamic Republic of Iran, Ayatollah Ali Khamenei has issued the Fatwa that the production, stockpiling and use of nuclear weapons are forbidden under Islam and that the Islamic Republic of Iran shall never acquire these weapons. President Mahmoud Ahmadinejad, who took office just recently, in his inaugural address reiterated that his government is against weapons of mass destruction and will only pursue nuclear activities in the peaceful domain. The leadership of Iran has pledged at the highest level that Iran will remain a non-nuclear-weapon state party to the NPT and has placed the entire scope of its nuclear activities under IAEA safeguards and additional protocol, in addition to undertaking voluntary transparency measures with the agency that have even gone beyond the requirements of the agency's safeguard system.
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