Malaysia Establishes Sensitive Sea Area with Vessel Restrictions Starting in September

The Malaysian government designated a sensitive sea area under the Exclusive Economic Zone Regulations 2026, aimed at protecting marine life, preserving protected features and controlling pollution from marine structures. The measure, announced through Marine Notice MSA 01/2026 on the Sensitive Sea Area, took effect on September 11, 2026 and introduces restrictions on vessel movements and activities within the zone.

The area lies near the eastern approaches to the Straits of Malacca and Singapore. The new rules also apply in waters of those straits commonly referred to by the shipping industry as the Outer Port Limit (OPL), although Malaysia does not recognize that status in waters it considers its own, including parts of both straits.

Anchoring within the area is prohibited, except for search and rescue operations, when a vessel is forced to anchor due to damage, or in the event of specific pollution emergencies. Cargo vessels and tankers exceeding 300 meters in length and 40 meters in beam are barred from entering, and all vessels must navigate at a maximum speed of 12 knots. Shipowners, masters and agents must also ensure that their vessels and activities do not harm the flora and fauna of the designated area.

Bunkering is outright prohibited within the area, while cargo transfer operations may only be carried out with written authorization from the Malaysian government. Other activities that could damage the seabed or protected features, such as dredging, salvage, installation of structures, laying, repairing or replacing cables and pipelines, research operations, seismic surveys and seabed resource extraction or mining, require prior government approval. Fishing, meanwhile, requires clearance from the Department of Fisheries Malaysia under the Fisheries Act 1985.

All vessels in these waters must report their movements, including anchoring, to the Malaysian Maritime Department (MMD) and may be boarded and inspected. According to Marine Insight, vessels unable to show the required MMD approval when inspected by the Malaysian Maritime Enforcement Agency (MMEA) could be detained, and according to marine insurer Gard, shipowners who fail to comply with the guidelines could face fines of up to one million Malaysian ringgit, about $245,000. Non-compliance constitutes an offense under the Exclusive Economic Zone Regulations 2026, and Gard recommended incorporating the areas identified in the notice into vessels' passage plans and route assessments.