“There is simply no established procedure for this matter,” Baqaei said in comments reported by state media, adding that Iran would “adhere to the standard procedures, which are already well-defined and transparent.”

The disagreement suggested that there may still be considerable distance between the parties on the current terms of the negotiations. Baqaei also said Tuesday that Iran’s ballistic missiles were not part of the talks with the United States and that Tehran would be unrestricted in how it can spend any money it gains access to as a result of the talks.

Despite the dispute, Trump said Tuesday that Iran had made “major concessions” and that talks were going well. He dismissed what he described as “false statements” from Tehran about inspections, claiming Iran had already agreed to them indefinitely.

“If they did not agree to this, there would be no further negotiations!” Trump posted on Truth Social.

Vance said Monday that Iran had agreed to allow IAEA inspections of its nuclear sites, telling reporters in Switzerland that it was a “major milestone for the American people, and the first step in permanently denuclearizing or permanently ending a nuclear weapons program in Iran.”