The U.S. Department of the Treasury and the Office of Foreign Assets Control (OFAC) have issued a directive prohibiting Americans from engaging in "safe passage" agreements with Iran or the Islamic Revolutionary Guard Corps. This move comes as Iran establishes the "Strait of Hormuz Authority" to levy tolls and offer security assurances for vessels transiting the strategic waterway. The U.S. has sanctioned this entity, warning that any involvement could lead to penalties. The Treasury Department reiterated that obtaining "safe passage assurance" from Iran is banned, regardless of whether fees are involved. This decision underscores the U.S.'s ongoing strict sanctions policy against Iran, rejecting any form of "paid protection." Meanwhile, prediction markets like Polymarket indicate a low probability of uninterrupted navigation through the Strait of Hormuz, with only an 8% chance before June 15 and 34% before the end of June.