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U.S. and Iran Sign Preliminary Memorandum While Major Implementation Points Remain Disputed

The fragile June agreement has produced working groups but public clashes over inspections, frozen funds, and control of the Strait of Hormuz leave its future unclear.

Overview

  • Negotiators signed a preliminary memorandum to halt active hostilities and opened four technical working groups on sanctions, nuclear issues, reconstruction, and monitoring following the June round of talks.
  • The IAEA director said inspectors will visit Iran’s enrichment sites, but Iranian officials deny consenting to inspections of some sites damaged by strikes and dispute reported meetings with the agency.
  • Iran’s delegation announced the unblocking of $12 billion in frozen assets split into two tranches while Washington says the funds will be restricted for humanitarian purchases and subject to oversight, a claim Tehran rejects.
  • Control and transit rules for the Strait of Hormuz are contested as the U.S. says the waterway is reopened without fees while Iranian negotiators insist Iran will play a central role in managing passage, creating routing and insurance uncertainty for shippers.
  • Domestic U.S. politics are now a factor after the Senate approved a mostly symbolic 50–48 resolution limiting the president’s war powers, signaling bipartisan concern that could shape how the memorandum is carried out.