Recent advisories from the Joint Maritime Information Center (JMIC) indicate a notable shift in maritime security protocols for the Strait of Hormuz, particularly for vessels utilizing the 'Deep South Route' through Omani territorial waters. Previously, during a period of heightened tensions, commercial ships were instructed to minimize electronic signatures, including turning off AIS and radar, and limiting radio transmissions, often transiting at night for added security. This was part of a U.S. military overwatch strategy that included airborne surveillance but no direct naval escorts.

However, the JMIC has now updated its guidance, suggesting that vessels can maintain AIS and radar emissions while transiting the southern route. This change coincides with a reduction in the regional threat level, first to "Substantial" on June 16, and then to "Moderate" on June 18, following a Memorandum of Understanding between the U.S. and Iran. The agreement aims to establish a 60-day ceasefire and facilitate negotiations, leading the U.S. to end its blockade of Iranian ports and Iran to agree to reopen the Strait of Hormuz.

Despite the reduced threat level, concerns persist. While the southern route is confirmed clear of mines, the traditional international Traffic Separation Scheme within the Strait of Hormuz should still be avoided due to active mine clearance operations. Furthermore, Iran has asserted new control measures, stating that ships require its permission to pass through the Strait and must obtain a mandatory insurance policy from Tehran. This policy, currently free, could potentially incur costs in the future, raising questions about new tolling arrangements for the vital waterway.

Naval presence for mine clearance and blockade enforcement continues, with vessels potentially subject to verification hails from U.S. units. Congestion through transit routes and potential VHF hailing from naval forces are also expected. Although the security situation is improving, organizations like Bimco and WSC emphasize the ongoing volatility and the need for coordinated risk assessments, clear safe routes, and detailed security procedures to ensure the safety of seafarers.