The US government has designated all five Americans as being wrongfully detained.
The release of the Americans would bring to an end a years-long nightmare for those who had been detained.
The agreement, which has already prompted criticism from Republicans, also involves the release of five Iranians in US custody.
The overall contours of the release protest began to crystallize in Doha about seven months ago after years of indirect negotiations.
The first tangible public steps under the deal took place about five weeks ago, when four of the Americans were transferred into house arrest.
Persons:
Nasser Kanaani, Morad Tahbaz, Namazi, Trump, Baquer Namazi, Joe Biden, Biden
Organizations:
Washington CNN — Five, CNN, Monday, Biden, US Treasury Department
Locations:
Doha, Iran, Iranian, United States, Tehran, South Korea, Qatar, Switzerland, Washington, American, Evin