Iran is reportedly developing a new system to regulate ship transit through the strategic Strait of Hormuz, a move that could remain in place even after its ongoing conflict with United States and Israel.

Before the conflict around 135 vessels crossed the vital waterway daily but traffic has dropped sharply since the escalation. Between March 1 and March 25, only 116 ships reportedly passed through the strait. According to the Financial Times, most of these vessels were linked to China, India, or Gulf nations, along with some sanctioned dark fleet ships.

Reports suggest that some vessels paid up to $2 million for safe passage. Iranian lawmaker Alaeddin Boroujerdi confirmed that ships are being charged significant fees to cross the waterway.

The approval process reportedly involves diplomatic coordination after which ships receive a code to broadcast near the strait. Iranian authorities then verify cargo details crew nationality and destination.

Data indicates that no vessels heading to Europe or the U.S. have used the route recently, with most shipments directed toward Asia. Some reports also claim vessels are using alternative registrations, including Pakistani flags, to facilitate transit amid sanctions.