U.S. warns shippers on sanctions as Strait of Hormuz traffic nears standstill

Shipping through the Strait of Hormuz is no longer just a war-risk problem. It is now a sanctions problem too. On Friday, the U.S. Treasury’s sanctions office warned shipping companies that if they pay Iran for safe passage through the strait, they could get hit with U.S. penalties. That matters because Hormuz is one of the world’s most important energy chokepoints, and traffic there has already slowed to a trickle after weeks of threats, seizures, and rerouting. (abcnews.com) ### What changed on Friday? The new move came from the Office of Foreign Assets Control — OFAC, the Treasury unit that enforces U.S. sanctions. Its alert said the risk is not limited to obvious toll payments. It also covers digital assets, offsets, informal swaps, other in-kind payments, payments made at I(abcnews.com)ington is telling shipowners, charterers, insurers, and traders that “pay to pass” is not a workaround. (abcnews.com) ### Why is Hormuz such a big deal? The strait sits at the mouth of the Persian Gulf. In normal times, about a fifth of global oil and natural-gas trade moves through it. When traffic there freezes up, the shock does not stay local — it spreads into fuel prices, shipping costs, insurance premiums, and then (abcnews.com)ith only a small fraction of normal vessel movement getting through. (abcnews.com) ### How did shipping get this stuck? The current squeeze followed the U.S.-Israeli war on Iran that began on Feb. 28. Iran then attacked or threatened ships and started restricting normal passage, while offering some vessels guided routes closer to its shoreline — sometimes for a fee. On April 13, the U.S. (abcnews.com)tollbooth crossed with a military checkpoint. (abcnews.com) ### What does the U.S. warning really do? It raises the cost of choosing the “practical” option. A shipowner facing delays, cargo penalties, and nervous customers might have been tempted to quietly pay for passage. But OFAC is saying that payment itself can become a sanctions violation. That means complian(abcnews.com) receives money, goods, or side payments. (abcnews.com) ### Are ships actually moving at all? Yes, but far below normal levels. NBC says daily counts have collapsed from typical traffic, and exact numbers may still understate the disruption because some ships manipulate GPS signals during transit. The AP report says U.S. Central Command has told 45 commercial s(abcnews.com)iding the route altogether. (nbcnews.com) ### Why does this hit beyond oil? Because shipping is a system, not a single lane. Al Jazeera notes that more than 80% of globally traded goods move by sea, and analysts say the bigger issue is the breakdown of the old assumption that key maritime routes stay open under shared rules. Once passage depends on force, permission, or side payments, every cargo owner has to price in uncertainty. (aljazeera.com) ### So what is the bottom line? The U.S. warning did not reopen the strait. It made the crisis sharper. Shippers now face two risks at once — danger if they transit, and sanctions if they pay Iran to reduce that danger. Until the military standoff eases, Hormuz is not just clogged. It is legally radioactive. (abcnews.com)