New Atlantic ECA links Europe and North America

In a significant move to combat marine pollution, the International Maritime Organization (IMO) has approved a proposal to establish the North-East Atlantic Ocean as an Emission Control Area (ECA) for nitrogen oxides (NOx), sulphur oxides (SOx), and particulate matter (PM) emissions. This decision was made during the 83rd session of the Marine Environment Protection Committee (MEPC 83) and will amend MARPOL Annex VI Regulations 13 and 14. The new regulations aim to enhance air quality and protect marine ecosystems in the region.

Details of the North-East Atlantic ECA

The newly designated ECA will cover the exclusive economic zones (EEZ) and territorial seas extending up to 200 nautical miles from the baselines of several countries, including Greenland, Iceland, the Faroe Islands, Ireland, and parts of the United Kingdom, France, Spain, and Portugal. However, areas already covered by existing ECAs, as well as the EEZ maritime zones adjacent to Madeira, the Azores, and the Canary Islands, will be excluded from this designation. The comprehensive geographic boundaries of the North-East Atlantic Ocean ECA are outlined in IMO Circular Letter No. 5005.

The Clean Arctic Alliance has also provided infographics that summarize both current and upcoming ECAs under MARPOL Annex VI, offering valuable insights for stakeholders in the maritime industry. The proposal is set for final adoption during an extraordinary MEPC session scheduled for October 2025. Following this, the amended MARPOL Annex VI is expected to come into force in 2027, with a 0.10% sulphur limit taking effect 12 months later. Additionally, the requirement for NOx Tier III engine certification will apply to ships contracted on or after January 1, 2027, or those keel-laid or delivered after specified dates in 2027 and 2031, respectively.

Clean Arctic Alliance Welcomes Support for New Arctic Emission Control Areas for Shipping

Implications for Ship Operators

Ship operators are urged to prepare for these upcoming changes by ensuring compliance with MARPOL requirements. With most European and North American waters now included in an ECA, it is crucial to verify the availability of fuel that meets the new sulphur content regulations. Operators must also implement proper fuel changeover procedures before entering the ECA to avoid penalties and ensure environmental compliance.

Fine particulate matter (PM) poses significant health risks, as it can penetrate deep into the lungs and enter the bloodstream. Reducing sulphur in fuel is a key strategy for lowering PM emissions, prompting various regions, states, and ports worldwide to adopt strict sulphur emission limits. Ship operators should familiarize their crews with these limits, not only within MARPOL-designated ECAs but also in all jurisdictions they operate in. Clear procedures and guidance should be provided to crew members to navigate local regulations, which can change with little notice. Masters of ships are advised to consult with their agents regarding local requirements well in advance of port calls.