The Office of Foreign Assets Control (OFAC) of the US Department of the Treasury administers and enforces economic and trade sanctions based on US foreign policy and national security. Such action target specific countries, regimes, terrorists, international narcotics traffickers, those engaged in activities related to the proliferation of weapons of mass destruction, and other threats to the national security, foreign policy or economy of the United States.
Some recent action by the US include the coming into force of the Comprehensive Iran Sanctions, Accountability and Divestment Act of 2010 (CISADA) and the enactment of the National Defence Authorization Act for Fiscal Year 2012. These measures target foreign banks that knowingly carry out transactions in breach of Iran-related United Nations Security Council Resolutions (UNSCR) and of the Iranian Financial Sanctions Regulations (IFSR).
Reference should be made to notices issued by the US Treasury and consideration given to the Specially Designated Nationals list. This lists individuals and entities, designated under various programs, whose assets are blocked and with whom US citizens are not allowed to trade.
Hereunder is a selection of notices and measures issued by the US department of the Treasury in relation to international sanctions. For more comprehensive and up to date information, and a complete list of restrictive measures undertaken by the USA please refer directly to the OFAC website.