© Mohsen Shandiz / Getty ImagesIranian women form a human chain, at the Isfahan Uranium Conversion Facility, to support Iran's nuclear program, just outside the city of Isfahan, south of Tehran.
The International Atomic Energy Agency (IAEA), in a confidential quarterly report seen by news agencies on August 31, said Iran's stock of low-enriched uranium and its enrichment level were within limits set by the accord.
The 2015 deal with the United States, Britain, France, Germany, China, and Russia put limits on Iran's nuclear program in return for the easing of economic sanctions against the country.
The latest report was the third since the inauguration of U.S. President Donald Trump on January 20.
Trump has called the nuclear agreement, reached under President Barack Obama, "the worst deal ever negotiated."
The U.S. State Department is required to notify Congress every 90 days as to whether Iran remains in compliance with the deal.
The U.S. administration on July 17 last certified that Iran was in fact complying, but it assailed Tehran for breaching what it called "the spirit" of the deal by continuing to develop and test ballistic missiles and fast boats.
A day later, it imposed new sanctions against 18 individuals and entities over their support for Iran's ballistic-missile program and other military-related activities.
According to the IAEA report, Iran's stock of low-enriched uranium as of August 21 was 88.4 kilograms, well below a 202.8-kilogram limit. The level of enrichment did not exceed a 3.67 percent cap, it said.
Comment: Inside sources tell us Nikki Haley cried herself to sleep after hearing the news. It's never a good day when the people you hate refuse to give you an excuse to bomb them.
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The IAEA has also responded to U.S. calls for inspection of Iranian military sites, saying they don't believe it's necessary, since they have no reason to believe the Iranians are doing anything wrong there. (The U.S. provided no evidence to justify the inspections.) "We're not going to visit a military site like Parchin just to send a political signal," an anonymous IAEA official told Reuters.