Iran mandates 48-hour notice for vessels passing through the Strait of Hormuz Iran’s Strait of Hormuz authority requires vessels to submit passage applications at least 48 hours in advance, effective during a 60-day negotiation period with the US. During this time, Iran will cancel passage fees for ships. This measure is in place to ensure navigational safety due to minefields in the strait and requires captains to pre-approve routes and passage times.

• Vessels must now apply for passage through the Strait of Hormuz at least 48 hours in advance.
• This requirement is in effect during a 60-day negotiation period with the US, based on a signed memorandum of understanding.
• Iran will cancel passage fees (security, insurance, environmental) for vessels during the negotiation period.
• Advance approval of routes and timing is mandatory due to minefields and to ensure shipping safety.
• The number of commercial vessels passing through the strait reached a high of 25 on a recent Thursday, the highest since mid-April.
• The strait was effectively closed by the Iranian military after February 28th following US and Israeli strikes on Iran.
• Before the conflict, around 120 vessels passed through the Strait of Hormuz daily.