Access Restrictions Enforced on Iranian Ports Starting April 13, 2026

The United Kingdom Maritime Trade Operations center announced access restrictions on Iranian ports, effective from 1400 UTC on April 13, 2026. These restrictions impact the entirety of the Iranian coastline, including ports and energy infrastructure. Vessels of any flag engaging with Iranian ports or related facilities are affected.

It was issued to inform all vessels in these regions of the enforcement starting at 1000 EST. No specific reasons for the restrictions were detailed in the announcements.

Scope of Restrictions The measures cover all access to Iranian ports along the coastline.

Energy infrastructure is explicitly included in the affected areas. m. ET on April 13. Vessels operating in the specified waters must adhere to the advisory. The enforcement began at the designated time, with notifications sent to maritime operators.

Multiple reports confirmed the immediate implementation without delays.

These areas represent key maritime routes near Iranian waters. Restrictions prevent engagement with Iranian ports in these zones. The United Kingdom Maritime Trade Operations center emphasized the full extent of the Iranian coastline.

This includes all relevant ports and supporting infrastructure. Operators in the region received direct warnings about compliance.

Implications for Shipping Shipping activities involving Iranian ports face disruptions from the restrictions.

Vessels of any nationality must avoid prohibited engagements. The advisory aims to ensure safe navigation amid the changes. No contradictions appear across reports on the timing or scope. All sources align on the 1400 UTC start and affected areas.

Further updates may follow as the situation develops.