On Friday, he sought to foist that responsibility on the US Congress but the decision ultimately remains with him.
Certification of the agreement every 90 days by the American administration is not part of the JCPOA. Rather, it was imposed on the Obama administration by the Republican-led Congress, which passed the Iran Nuclear Agreement Review Act (INARA) in 2015 to increase leverage on Iran to stick to the deal’s requirements. President Trump certified Iranian compliance twice, but he appears reluctant to do so again by an Oct. 15 deadline.
The US views those missile tests as provocative, and while technically not a breach of JCPOA, they come in defiance of UN Security Council Resolution 2231 which “calls upon Iran not to undertake any activity related to ballistic missiles designed to be capable of delivering nuclear weapons…”