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U.S. Bans Maritime 'Safe Passage' Agreements With Iran

The Treasury Department warned that even non-cash arrangements to avoid harassment in the Strait of Hormuz violate U.S. sanctions.

May 30, 2026 at 4:00 PM

The Trump administration has significantly tightened financial pressure on Iran by prohibiting shipping companies from entering into any agreements—including non-cash arrangements—to secure safe passage through the Strait of Hormuz. The U.S. Treasury’s Office of Foreign Assets Control (OFAC) clarified that these informal security deals, often used to bypass Iranian naval harassment, are now considered violations of existing sanctions frameworks. This policy shift targets the maritime industry's reliance on 'tolls' or informal understandings with Iranian entities, including the IRGC, to ensure the unhindered flow of goods through the strategic chokepoint. By removing these workarounds, the U.S. is signaling a dual-track approach to regional security that combines naval presence with aggressive legal and financial enforcement against those who engage with Iranian maritime authorities. The directive is expected to have immediate repercussions for global shipping and energy markets. With the Strait of Hormuz serving as a primary transit point for global oil supplies, the inability to formalize or informalize safety protocols with Iran is likely to drive up insurance premiums and increase the operational risks for commercial vessels transit through the Gulf.

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