LONDON — The International Maritime Organization kept the IMO Net-Zero Framework alive but pushed key decisions into the fall after member states failed to settle divisions over a global shipping emissions plan at the close of MEPC 84, May 1, 2026. The delay came as the United States, Saudi Arabia and other opponents pressed for alternative proposals that could weaken or reshape the deal before a decisive adoption push later this year.
The outcome leaves the shipping industry with a clearer negotiating calendar but less certainty over the substance of the rules. The IMO said the Marine Environment Protection Committee agreed to create an intersessional working group, hold two additional meetings before MEPC 85 and resume its adjourned extraordinary session Dec. 4, according to the organization’s latest summary of the committee’s work.
IMO Net-Zero Framework survives, but the fight shifts to the fall
The framework would create the first global greenhouse gas pricing system for international shipping, pairing a marine fuel standard with a mechanism that charges ships emitting above set limits. Supporters say the system is needed to move capital into cleaner fuels, reward lower-emission vessels and help developing countries avoid being left behind in the transition.
But the latest talks also preserved a pathway for critics to keep alternative proposals on the table. The Associated Press reported that maritime nations kept the framework as the foundation for negotiations while agreeing to continue considering changes and new proposals before a possible vote in late fall, a compromise that worried countries seeking a faster decision and more regulatory certainty for green shipping investments, according to AP reporting from the London talks.
That makes the coming months critical. If the framework is adopted without major dilution, it could anchor a global transition away from heavy fuel oil and toward zero- and near-zero-emission fuels. If it is weakened, delayed again or replaced by a softer “market readiness” approach, the sector could face years of fragmented regional rules and slower investment.
How the shipping climate deal reached this point
The current fight follows more than a year of negotiations, setbacks and political pressure. In April 2025, IMO member states approved draft net-zero regulations that combined mandatory fuel-emissions limits and greenhouse gas pricing across an entire industry sector, with the rules aimed at large ocean-going ships over 5,000 gross tonnage, according to the IMO’s April 2025 approval announcement.
The framework then ran into direct opposition from Washington. In August 2025, the Trump administration rejected the proposal and warned that the United States could retaliate against countries supporting it, arguing that the plan would raise costs for Americans and amount to a global carbon tax, according to Reuters reporting on the U.S. position.
By October 2025, that pressure had helped derail what supporters had hoped would be a formal adoption session. The IMO’s Marine Environment Protection Committee adjourned the extraordinary session for one year and said member states would continue working toward consensus, as the organization explained in its notice that net-zero shipping talks would resume in 2026.
Opponents seek more time, supporters warn of drift
The main dispute is no longer whether shipping should cut emissions by mid-century. The deeper fight is over whether the IMO should adopt binding global rules strong enough to shift fuel choices, ship design and port infrastructure quickly enough to matter.
Opponents of the pricing mechanism say the rules could increase transport costs, penalize energy exporters and burden developing economies. Supporters counter that delay also has a price: uncertainty slows investment, makes clean-fuel projects harder to finance and leaves shipping companies guessing whether to prepare for global rules or a patchwork of regional systems.
Small island states and climate-vulnerable countries have pushed for a stronger deal, arguing that shipping’s transition must also fund resilience and a fairer shift to cleaner fuels. Industry groups, meanwhile, have generally favored a global framework over competing national or regional measures, even as companies remain divided over the level and design of any emissions price.
What comes next for the IMO Net-Zero Framework
The next phase will focus on whether governments can convert the draft framework into adoptable legal text without stripping out the measures that give it force. Two intersessional meetings are scheduled before MEPC 85, along with a technical workshop on fuel supply chain traceability, which is central to verifying emissions from alternative fuels.
The danger for supporters is that “more talks” become a path to permanent delay. The opportunity is that the framework remains the negotiating baseline, giving ambitious states a chance to rebuild support before the resumed extraordinary session.
For the global shipping industry, the message is mixed: the deal is not dead, but it is not secure. The IMO Net-Zero Framework now enters its most fragile stage, where the difference between adoption and erosion may depend on whether governments treat the fall deadline as a final landing zone or another opening to weaken the world’s first global climate rule for shipping.
