The U.N. 's nuclear watchdog is committed under the deal to release a report by year - end about the status of Iran 's alleged weaponization work .
The U.N. 's nuclear watchdog is the International Atomic Energy Agency .
The U.N. 's nuclear watchdog , the International Atomic Energy Agency , is committed under the deal to release a report by year - end about the status of Iran 's alleged weaponization work .