Maritime advisory urges vessels to avoid Iranian waters and prepare for potential boardings as nuclear diplomacy continues.
The United States has issued updated security guidance for commercial ships navigating the vital Strait of Hormuz, urging extreme caution near Iranian territory amid ongoing tensions over Tehran’s nuclear program and regional activities.
The U.S. Maritime Administration, part of the Department of Transportation, advised on Monday that all U.S.-flagged vessels should maintain maximum distance from Iran’s territorial waters without compromising safe navigation. The guidance specifically instructs crews to verbally deny Iranian forces permission to board if approached—but not to resist physically if a boarding occurs.
“If Iranian forces board a U.S.-flagged commercial vessel, the crew should not forcibly resist the boarding party,” the advisory stated, emphasizing de-escalation in any confrontation.
The strategic strait is a critical global oil artery, with a significant portion lying within Iran’s territorial boundaries. Tehran has historically threatened to close the passage and has seized multiple commercial ships in recent years, often alleging smuggling or maritime violations.
This renewed maritime warning comes against a complex diplomatic backdrop. Iranian officials reported last week that nuclear talks mediated by Oman are progressing positively. However, the U.S. insists that any comprehensive negotiations must also address Iran’s ballistic missile development, support for regional armed groups, and human rights record.
Adding to the pressure, President Donald Trump signed an executive order on Friday imposing a 25% tariff on imports from any country that trades with Iran, escalating economic measures against Tehran.
The advisory highlights the persistent risk of regional escalation even as diplomatic channels remain open, underscoring the fragile security environment in one of the world’s most important shipping lanes.




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