Jordan Hatch, Loss Prevention Executive of global marine insurer NorthStandard, on Thursday (2 July) issued guidance for vessels operating in Emission Control Areas (ECAs):

The IMO addresses air pollution through MARPOL Annex VI, regulating the emissions of sulphur oxides (SOx), nitrogen oxides (NOx), and particulate matter from ships.

NOx requirements set limits on emissions from marine diesel engines through certification and tiered standards, whilst SOx regulations limit the sulphur content of fuel used onboard ships.

On 1 January 2020, the global sulphur limit for marine fuel was reduced from 3.50% to 0.50% by mass (m/m). However, some areas, known as SOx Emission Control Areas (ECAs), enforce stricter limits of 0.10% sulphur content. There are also dedicated NOx ECAs which impose tighter NOx emission standards for marine engines, particularly on newer vessels.

To meet the stricter SOx limits, ships must ensure they are burning compliant 0.10% sulphur fuel before entering an ECA. If a vessel is changing over from a 0.50% sulphur fuel, this requires a ship-specific calculation based on system volume, sulphur content, and current consumption to determine changeover time. Fuel changeover details, including quantities, date, time, and position, must be logged. Switching back to higher sulphur fuel should only begin after exiting the ECA.

To meet NOx requirements, vessels must demonstrate that their marine engines are certified to the applicable emission tier, and that they continue to operate within those limits through proper maintenance of combustion-related components.

Local Requirements

Some countries apply stricter local requirements in addition to MARPOL Annex VI. For example, Türkiye and Iceland have introduced a 0.10% sulphur limit in their territorial waters, while China has established its own dedicated ECAs.  

Members should check all applicable local requirements before entry and ensure that compliant fuel is available onboard, with sufficient time allowed for fuel changeover.

Scrubber Use

MARPOL allows for equivalent measures in the SOx regulations which means vessels can use exhaust gas cleaning systems (scrubbers) to meet both the global and ECA sulphur caps. Scrubbers remove sulphur from exhaust gases, with wash water as a byproduct, allowing the use of higher-sulphur fuels when operated and maintained according to IMO guidelines in MEPC.340(77).

Scrubbers are available as open-loop (discharging wash water directly into the sea), closed-loop (treating and recirculating the wash water) or hybrid systems. Local regulations vary by country, so members should consult specific guidelines on open or closed-loop usage; our resource here can be used as a guide.

New ECAs

The coverage of ECAs continues to expand, with MEPC 84 adopting the largest ECA to date in the North-East Atlantic.

Mediterranean Sea ECA

Entering into force on 1 May 2025, the Mediterranean Sea is now designated as an ECA, with the 0.10% sulphur limit in effect. Further details can be found here.

The Canadian Arctic and the Norwegian Sea ECA

The amendments to MARPOL Annex VI that designated the Canadian Arctic and the Norwegian Sea as new ECAs entered in to force on 1 March 2026. Both the Canadian Arctic and the Norwegian Sea ECAs for SOx will take effect on 1 March 2027, one year after these amendments came into force.

North-East Atlantic Ocean ECA

At MEPC 84 in 2026, the IMO adopted the North-East Atlantic Ocean as a new Emission Control Area, now the largest ECA designated to date.

This ECA covers a wide area including the waters of Greenland, Iceland, the Faroe Islands, and the western coasts of the United Kingdom and Ireland, extending south to Spain and Portugal, and effectively linking existing ECAs across Europe with the Canadian Arctic region.

The amendments enter into force on 1 September 2027, with SOx limits of 0.10% applying from 1 September 2028. NOx requirements will apply to new ships constructed on or after 1 January 2027 when operating within the area.

With most European and North American waters now designated as ECAs, ship operators should ensure that fuel procurement, changeover procedures, and crew awareness remain aligned with evolving MARPOL requirements when trading in these regions.

A useful infographic and further guidance on ECAs can be found here.

Photo credit: Venti Views on Unsplash
Published: 7 July, 2026

Grimaldi Group recently presented the Grande Istanbul, one of its latest-generation, ammonia-ready Pure Car & Truck Carriers (PCTCs), during a ceremony held at Autoport in Kocaeli, Türkiye.

Named after Türkiye’s largest city and economic capital, the Grande Istanbul is one of the 17 latest-generation, ammonia-ready PCTCs commissioned by the Grimaldi Group.

The vessel offers a capacity of up to 9,241 CEUs while reducing CO₂ emissions per unit of cargo by up to 50% compared with previous-generation car carriers.

“The ceremony reaffirmed the Group’s long-term commitment to Türkiye, where it has been operating for almost five decades,” the company said in a social media post.

“Today, around 20 state-of-the-art ro-ro vessels and PCTCs connect Turkish ports with a global network of more than 150 ports in over 60 countries, supporting the country’s automotive industry and international trade.”

The Grande Istanbul is currently deployed on the Grimaldi Group’s EuroMed Service, linking several ports in Northern Europe and the Mediterranean, including Autoport, Borusan, Derince, Gemlik, Haydarpaşa and İzmir in Türkiye. 

Photo credit: Grimaldi Group
Published: 7 July, 2026

​International container transportation and logistics company Orient Overseas Container Line (OOCL) on Friday (3 July) said its first methanol dual-fuel containership, OOCL Wisdom, completed its first green methanol bunkering and commenced its maiden voyage at Qingdao Port.

OOCL Wisdom is the first in a series of seven methanol dual-fuel container vessels. With a maximum capacity of 24,168 TEU, it is currently the world’s largest methanol dual‑fuel container vessel and is deployed on the Asia – North Europe Loop 1 (LL1) service.

Mr. Peter Pan, Director of Trades of OOCL, said: “OOCL Wisdom completed its first green methanol bunkering and commenced its maiden voyage to Europe at Qingdao Port, representing a significant achievement of the deepening collaboration between OOCL and Shandong Port Group, and reflecting OOCL’s steadfast commitment to green and low‑carbon development, digital intelligence and sustainability.”

Photo credit: Orient Overseas Container Line
Published: 6 July, 2026