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IMO’s Net Zero Plan Holds Firm After Divided MEPC 84 Talks

IMO’s Net Zero Plan Holds Firm After Divided MEPC 84 Talks

The International Maritime Organization’s push toward a global shipping decarbonisation framework remains alive after a tense week of negotiations in London. While the industry avoided a major policy rollback, deep divisions among member states show that agreement on implementation is still far from secure.

For shipowners, operators, fuel suppliers and crews, the outcome of MEPC 84 signals one thing clearly: carbon regulation in shipping is moving forward, but the political battle over how it will work is intensifying.

Industry Pressure Keeps Net Zero Framework on the Table

After days of debate at IMO headquarters, the organization’s proposed Net Zero Framework (NZF) survived efforts to weaken or reopen key parts of the package, especially the controversial carbon pricing mechanism.

Around 100 delegations addressed the committee during the session. By the end of the meeting, 55 countries supported keeping the NZF as the foundation for future negotiations, while 51 backed proposals that would significantly dilute the framework or remove carbon pricing measures altogether.

The narrow divide reflects how politically sensitive shipping emissions regulation has become, particularly for developing economies and countries concerned about fuel costs, trade competitiveness and energy access.

Still, the balance of support marked a reversal from the extraordinary IMO session held last October, where momentum had shifted against the framework.

IMO Secretary-General Arsenio Dominguez acknowledged the difficult negotiations but urged member states to continue working toward consensus. Additional intersessional meetings are now scheduled for September and November ahead of MEPC 85 later this year.

Carbon Pricing Remains the Central Battle

The strongest opposition focused on the framework’s proposed carbon pricing structure, which many industry observers consider essential if low-emission fuels are to become commercially viable.

Alternative proposals from Japan and Argentina failed to gain enough support. Japan’s proposal to remove carbon pricing attracted backing from only seven states, while Argentina’s broader proposal to remove both the pricing mechanism and associated fund secured support from 24 countries.

According to analysts from UCL Shipping and Oceans Research Group, several countries that previously opposed or abstained from the framework shifted back toward supporting it during MEPC 84.

That shift matters because shipping companies are already making long-term investment decisions involving dual-fuel vessels, methanol readiness, LNG infrastructure and future green fuel supply chains. Regulatory uncertainty increases the financial risk attached to those investments.

More Than Decarbonisation on the Agenda

Alongside the emissions debate, the committee adopted several operational and environmental measures with direct implications for commercial shipping. A new Emissions Control Area (ECA) covering parts of the Northeast Atlantic was approved and will enter into force in 2028. The zone will apply stricter limits on sulphur oxides, nitrogen oxides and particulate emissions across waters linked to Greenland, Iceland, the Faroe Islands, Ireland, the UK, France, Spain and Portugal.

The IMO also approved: A mandatory code for transporting plastic pellets in freight containers Updated ballast water management guidance A two-year extension of the underwater radiated noise experience-building phase through 2028 In addition, member states adopted a resolution condemning attacks on merchant shipping in the Strait of Hormuz, highlighting growing concerns over marine pollution risks tied to regional conflict, drone attacks and vessel fires.

More Than Decarbonisation on the Agenda

Industry groups broadly welcomed the fact that negotiations remained alive, but many acknowledged the framework is still politically fragile.

Thomas Kazakos said further adjustments would likely be needed before a globally accepted framework could be finalized.

Environmental groups also warned against allowing negotiations to drift indefinitely, arguing that shipping cannot afford years of uncertainty while global emissions targets tighten.

For now, the IMO has avoided a breakdown in negotiations. But the next few meetings could determine whether global shipping ends up with a meaningful market-based emissions system — or a significantly watered-down compromise.

Why This Matters

  • Shipowners face continued uncertainty over future fuel costs, carbon levies and vessel investment decisions.
  • Operators trading in European and Atlantic waters should prepare for tighter emissions controls under the new Northeast Atlantic ECA.
  • Alternative fuel developers and green energy suppliers still see momentum behind carbon pricing mechanisms that could support cleaner fuel demand.
  • Seafarers and technical managers may face increasing operational changes tied to emissions compliance, fuel handling and environmental reporting.

MEPC 84 did not deliver a final answer on shipping decarbonization, but it kept the IMO’s Net Zero Framework alive at a critical moment. The direction of travel remains toward stricter emissions regulation — even if the pace and structure are still under heavy negotiation.

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