United Nations Security Council Resolution 1737 – passed on 23 December 2006 in response to the proliferation risks presented by the Iranian nuclear program and, in this context, by Iran's continuing failure to meet the requirements of the International Atomic Energy Agency Board of Governors and to comply with the provisions of Security Council resolution 1696 (2006). Made mandatory for Iran to suspend enrichment-related and reprocessing activities and cooperate with the IAEA, imposed sanctions banning the supply of nuclear-related materials and technology, and froze the assets of key individuals and companies related to Iran's nuclear and missile programs. It established a committee to monitor sanctions implementation.
United Nations Security Council Resolution 1747 – passed on 24 March 2007. Imposed an arms embargo and expanded the freeze on Iranian assets, welcomed the proposal by the permanent five members of the Security Council plus Germany for resolving issues regarding Iran's nuclear program.
United Nations Security Council Resolution 1803 – passed on 3 March 2008. Extended the asset freezes and called upon states to monitor the activities of Iranian banks, inspect Iranian ships and aircraft, and to monitor the movement of individuals involved with the program through their territory, impose travel restrictions on sanctioned persons, and bar exports of nuclear- and missile-related dual-use goods to Iran.
United Nations Security Council Resolution 1929 – passed on 9 June 2010. Banned Iran from participating in any activities related to ballistic missiles, tightened the arms embargo, travel bans on individuals involved with the program, froze the funds and assets of the Iranian Revolutionary Guard and Islamic Republic of Iran Shipping Lines, and recommended that states inspect Iranian cargo, prohibit the servicing of Iranian vessels involved in prohibited activities, prevent the provision of financial services used for sensitive nuclear activities, closely watch Iranian individuals and entities when dealing with them, prohibit the opening of Iranian banks on their territory and prevent Iranian banks from entering into relationship with their banks if it might contribute to the nuclear program, and prevent financial institutions operating in their territory from opening offices and accounts in Iran. The resolution passed by a vote of 12–2, with Turkey and Brazil voting against and Lebanon abstaining. A number of countries imposed measures to implement and extend these sanctions, including the United States, the European Union, Australia, Canada, Japan, Norway, South Korea, and Russia.