The International Maritime Organization (IMO) has strengthened global action on shipping emissions, marine pollution, and ocean protection during its 84th Marine Environment Protection Committee session held in London from April 27 to May 1, 2026. The meeting brought together nearly 100 member states to review environmental risks and regulatory frameworks impacting global shipping.

IMO Net-Zero Framework Gains Policy Focus

Discussions centered on the IMO Net-Zero Framework, which targets reducing greenhouse gas emissions from international shipping. Delegates presented multiple proposals for mid-term measures and agreed to establish an intersessional working group. This group will address key concerns and aim to build consensus before the next session.

IMO Secretary-General Arsenio Dominguez stated that negotiations are progressing, with additional meetings planned in September and November 2026 to refine emission strategies and technical frameworks.

New Emission Control Area Targets Air Pollution

A new Emission Control Area (ECA) was approved in the Northeast Atlantic. The regulation introduces stricter limits on sulphur oxides, nitrogen oxides, and particulate matter from ships. The rules are set to enter into force in September 2027, with implementation expected by 2028.

The committee also adopted the 2026 Strategy and Action Plan to Address Marine Plastic Litter. The plan focuses on improving port waste facilities, enhancing compliance, and promoting international cooperation. It aims to achieve zero plastic waste discharge from ships by 2030.

Strait Of Hormuz Risks Highlight Marine Safety Concerns

Environmental risks in the Strait of Hormuz were formally addressed. The committee adopted a resolution highlighting the potential for large-scale marine pollution due to attacks on commercial vessels. Risks include oil spills and hazardous material discharge.

Additional measures included updates to ballast water management rules, development of guidelines on underwater noise reduction, and plans for regulating plastic pellet transport at sea.

The next IMO session is scheduled from November 30 to December 3, 2026, where further progress on emissions and marine protection policies is expected.