Vessels that fail to comply with Iran's transit regulations in the Strait of Hormuz risk fines, detention or confiscation on subsequent passages through the waterway, Iranian authorities said.
The Persian Gulf Strait Authority (PGSA), the Iranian body that oversees transit through the strait, issued the warning in a statement posted to its account on the US-based social media platform X.
The agency said vessels that do not follow the country's designated passage rules face penalties including monetary fines, detention or confiscation the next time they attempt to transit the waterway.
The PGSA said companies that carry cargo to or from the Persian Gulf, or that load cargo there, must check an updated list of vessels found to have violated the rules before chartering ships. The authority said the list would be expanded to include any vessel that cooperates with an already-listed violator through ship-to-ship transfers, transshipment or similar operations.
Ship operators seeking to have a vessel removed from the list must submit a request explaining their reasoning to the email address [email protected], according to the statement.
The Strait of Hormuz, which separates Iran from Oman and connects the Persian Gulf to the Gulf of Oman, is one of the world's most heavily used corridors for oil and gas shipments, making transit rules through the passage closely watched by international shipping firms and energy traders.