VIENNA — The United Nations agency monitoring Iran’s compliance with a landmark nuclear treaty issued a report Monday certifying that the country is keeping its end of the deal that U.S. President Donald Trump claims Tehran has violated repeatedly.

The International Atomic Energy Agency report stopped short of declaring that Iran is honoring its obligations, in keeping with its official role as an impartial monitor of the restrictions the treaty placed on Tehran’s nuclear programs.

But in reporting no violations, the quarterly review’s takeaway was that Iran was honoring its commitments to crimp uranium enrichment and other activities that can serve both civilian and military nuclear programs.

The report cited IAEA chief Yukiya Amano as stressing “the importance of the full implementation by Iran of its nuclear-related commitments” under the deal. Diplomats familiar with the work that went into the evaluation said Amano’s statement referred to a past violation on heavy water limits that Iran has since corrected.

Heavy water cools reactors that can produce plutonium used to make the core of nuclear warheads. The IAEA last year said that Tehran had slightly exceeded the limit, but later said it had returned to compliance. Monday’s report showed its heavy water supply remains under the maximum 130 metric tons (143.3 tons).