
After data showed no visible transits following Iran's closure announcement, JMIC said Oman- and Iran-route traffic has begun to recover, though disrupted navigation signals and Iranian calls to ships still pose risks.
The Joint Maritime Information Center (JMIC) lowered its Strait of Hormuz maritime security threat level from the highest setting to medium on June 22, as transit traffic on routes via Oman and Iran began to recover. The update followed earlier shipping data showing no visible transits over a 24-hour period after Iran's military announced the strait's closure, though monitoring-based reports cautioned some vessels may have attempted "dark crossings" by switching off AIS tracking. Mohammad Bagher Qalibaf later said the strait would not return to its prewar management structure and that Iran and the United States agreed to establish a coordination center and a 30-day hotline to resolve ship-related issues more quickly, while vessel permits would continue under existing procedures. A separate report cited a source close to the negotiating team as saying the strait would not reopen unless a Lebanon ceasefire agreement is honored and waivers for Iranian oil sales are approved. JMIC still warned that navigation signals remain disrupted and that Iran's Revolutionary Guard continues calling passing ships.