The UN Security Council is due to approve a resolution on July 20 that would allow for the start of the lifting of international sanctions against Iran.
The vote is scheduled for 9 a.m. local time and is expected to be a formality because the council's five permanent members -- Britain, China, France, Russia, and the United States, plus Germany -- forged the Iran nuclear deal that was signed in Vienna on July 14.
The text of the UN resolution launches a gradual and conditional lifting of economic sanctions in exchange for guarantees that Iran will not develop a nuclear bomb.
The resolution calls for the agreement's "full implementation on the timetable established" and urges UN member countries to facilitate the process.
The text says the UN's nuclear watchdog, the International Atomic Energy Agency (IAEA), must "undertake the necessary verification and monitoring of Iran's nuclear commitments."
The resolution also demands that Iran "cooperate fully" with the IAEA.
The UN has seven major resolutions outlining sanctions against Iran, including resolutions that ban the trade of goods linked to Iranian nuclear activities and freezes on assets of Iranian officials and companies.