HomeIran ...U.S. Relations With Iran hide U.S. Relations With Iran Bilateral Relations Fact Sheet Bureau of Near Eastern Affairs April 1, 2022 As a result of the Iranian takeover of the American Embassy on November 4, 1979, the United States and Iran severed diplomatic relations in April 1980. The United States and the Islamic Republic of Iran have had no formal diplomatic relationship since that date. Switzerland is the U.S. protecting power and provides limited consular services to U.S. citizens in Iran. Iran has no embassy in Washington, D.C. More information about the Islamic Republic of Iran is available from the Department of State and other sources, some of which are listed here: CIA World Factbook Iran Page U.S. Virtual Embassy History of U.S. Relations With Iran U.S. Census Bureau Foreign Trade Statistics Office of Foreign Assets Control Sanctions Page Library of Congress Country Studies Travel Information 2021 Trafficking in Persons Report: Iran 2020 Report on International Religious Freedom 2020 Country Reports on Human Rights Practices: Islamic Republic of Iran Tags Bureau of Near Eastern Affairs Iran