On Friday, April 17, 2026, the geopolitical landscape shifted as Iran declared the Strait of Hormuz “completely open” for commercial vessels. The announcement follows a shaky two-week U.S.-Iran ceasefire and a 10-day truce in Lebanon, marking the first time in over six weeks that this vital energy chokepoint has shown signs of functional recovery.
The IMO’s Safe Passage Framework
The International Maritime Organization (IMO) is now actively coordinating a safe maritime framework to facilitate the evacuation of over 2,000 ships—including six cruise liners—currently stranded in the Persian Gulf. Secretary-General Arsenio Dominguez emphasized that the immediate priority is restoring the Traffic Separation Scheme (TSS) to ensure safe navigation. U.S. President Donald Trump confirmed that the U.S. is assisting Iran in removing sea mines to secure these long-established shipping lanes.
Legal Certainty and Insurance
Despite the “open” declaration, legal hurdles remain. While the UN insists on “transit passage” under customary international law, Iran maintains its right to monitor “coordinated routes.” To bridge the confidence gap, London insurers launched a $1 billion war cover facility on April 17 to encourage owners to resume transits.
Global Trade Resilience
The impact of the closure was profound; UNCTAD reported a 95% collapse in traffic, with daily transits dropping from 138 to just a handful. Following today’s announcement, global oil prices tumbled by 5%, signaling market relief. However, the IMO warns that routine trade will only resume once seafarers’ safety is fully guaranteed and the current truce is codified into a durable settlement.