The United States has imposed restrictions on activities with Iran under various legal authorities since 1979, following the seizure of the U.S. Embassy in Tehran.

Why has Iran been sanctioned?

In response to Iran's continued illicit nuclear activities, the United States and other countries have imposed unprecedented sanctions to censure Iran and prevent its further progress in prohibited nuclear activities, as well as to persuade Tehran to address the international community's concerns about its nuclear ...

Is Iran sanctioned by the US?

The US has imposed sanctions against Iran in response to the Iranian nuclear program and Iranian support for Hezbollah, Hamas, and Palestine Islamic Jihad, that are considered terrorist organizations by the US. ... The EC also instructed the European Investment Bank to facilitate European companies' investment in Iran.