The UN Security Council has unanimously endorsed the nuclear deal between Iran and six world powers agreed last week.
The resolution, co-sponsored by all 15 members, authorises the lifting of sanctions in return for Iran curbing sensitive nuclear activities.
But it also provides a mechanism for UN sanctions to "snap back" if Iran fails to comply with its obligations.
No further action is required for 90 days, to give the US Congress time to consider whether to give its approval.
Read MoreObama, with both hands tied behind his back, head butts the GOP out of the ring.
UN Security Council has endorsed the Iran deal which now renders the decision of USA congress as irrelevant because trade with Iran is now permissible.
This will be a big boost for world trade, although USA is not likely to gain from the trade boost because of residual hostility of Iran to USA.
The big gain Obama received form this was to have the GOP-led Congress rendered impotent consequent to UNSC declaration.
Obama smashes GOP out of the ring again.