But the decision about whether to scrap the deal has reportedly sparked fierce internal divisions, with Secretary of State Rex Tillerson arguing the US should keep the seven-nation accord.
Despite the White House's obvious skepticism about the deal, it would be hard to do otherwise.
According to Foreign Ministry Spokesman Bahram Qassemi, the top Iranian diplomat is also scheduled to sit down with scholars and officials from different countries on the sidelines of the conference.
Trump's decision means there will be continued sanctions relief to Iran - and comes amid an internal debate about recertification, The Weekly Standard reported.
That's not to say that the deal will definitely outlive the Trump administration.
Under the terms of the deal, nuclear-related sanctions on Iran were lifted in exchange for assurances Tehran's nuclear program would remain peaceful.
As a candidate and president, Trump has said he would reexamine and possibly kill what he called the "disastrous" nuclear deal that was negotiated under President Barack Obama and went into effect in January previous year. That report, due 180 days after Trump's inauguration, was part of restrictions lawmakers put on the agreement, as was the 90-day certification requirement.
"The worldwide accord successfully blocked Iran's paths to a nuclear weapon and has greatly strengthened the security of the United States and our allies", the letter stated.
After Iran test-fired a medium-range ballistic missile in late January, in violation of United Nations resolutions, the administration declared it was putting Iran "on notice" that such behavior would not be tolerated.