US Treasury Bans All Shipping Agreements with Iran via Strait of Hormuz

The U.S. Treasury Department has issued a definitive directive clarifying that American entities are strictly prohibited from engaging with the Iranian government for safe passage through the Strait of Hormuz. This mandate applies regardless of whether a financial toll is involved, effectively closing any potential loophole that might have allowed shipping companies to negotiate security guarantees with Tehran or its newly established Persian Gulf Strait Authority (PGSA).

By designating the PGSA as a sanctioned entity under counterterrorism authorities, the U.S. government is signaling a hardline stance against any form of cooperation with Iranian-backed maritime oversight. This policy creates significant legal and operational hurdles for international shipping firms, as any interaction with the PGSA now carries the threat of severe U.S. sanctions. The move is intended to prevent Iran from legitimizing its control over the vital waterway or extracting revenue from global energy transit.

This development underscores the escalating volatility in the Persian Gulf, where the ongoing conflict has already severely disrupted global energy supply chains. While a small fraction of oil tankers has managed to navigate the strait clandestinely, the official U.S. position complicates the risk calculus for maritime insurers and vessel operators. As the White House continues to navigate a complex geopolitical landscape, this clarification serves as a stark reminder that the U.S. remains committed to isolating Iranian influence, even at the cost of continued instability in global oil markets.