In April 2026, the IMO held its 84th session of the Marine Environment Protection Committee (MEPC84) in London and adopted the Net-Zero Framework (NZF): the most ambitious global carbon pricing system for shipping to date. For European operators already navigating EU ETS and FuelEU Maritime, this outcome is not just global policy news it is an additional layer with direct impact on costs, contracts and fuel strategy.

1) What MEPC84 adopted (and why it survived)

The session was marked by pressure from a coalition of flag states to weaken or delay the NZF. The final outcome was adoption of the framework with two pillars:

• Global Fuel Standard (GFS): mandatory cap on fuel carbon intensity (gCO₂e/MJ), with a base trajectory and a more ambitious target trajectory. Phased entry into force from 2027/2028.
• Levy mechanism (carbon price): vessels exceeding the GFS limit pay a penalty for excess emissions. Revenues go to a transition fund (clean technologies) and compensation for SIDS and LDCs.

Key milestones approved: 20–30% GHG intensity reduction by 2030 (vs. 2008), 70–80% by 2040, and net-zero emissions by or around 2050.

2) The 5 regimes now coexisting for European operators

The real challenge for operators with European exposure is not the NZF in isolation but managing 5 regulatory frameworks in parallel:

1. IMO CII in force since 2023. Annual A–E rating based on CO₂/tonne·mile ratio. D or E-rated ships must submit a corrective action plan.
2. IMO GFS new from MEPC84. Fuel carbon intensity cap, with levy for excess. Entry phase: 2027/2028.
3. IMO Levy linked to the GFS. Price per tonne of excess CO₂e. Initial estimated level: USD 40–100/t CO₂e, escalating progressively.
4. EU ETS Maritime in force since 2024. Ships >5,000 GT on EU/EEA routes surrender EUAs: 40% of 2024 (due Sept 2025), 70% of 2025, 100% from 2026.
5. FuelEU Maritime in force since 2025. Lifecycle carbon intensity cap (gCO₂e/MJ), with penalties and fleet pooling options.

Key note: the IMO foresees "equivalence/recognition" mechanisms between the NZF and EU ETS, but technical details are still under negotiation. Until clarity emerges, European operators must assume exposure to both systems.

3) Practical impact by role

Shipowners and fleet managers

• Fuel profile under triple scrutiny: EU ETS charges for actual emissions; FuelEU requires lifecycle intensity; GFS sets another intensity threshold with its own levy. A single bunker delivery can trigger three simultaneous cost exposures.
• CII and GFS are not identical: a ship with a CII "C" rating can still have GFS exposure if the consumed fuel's intensity exceeds the NZF threshold.
• TC contracts: review compliance cost allocation clauses (EU ETS, FuelEU, NZF levy). Market consensus is still forming; those who fail to renegotiate before 2027 will absorb more risk.
• CAPEX/OPEX decisions: the NZF levy adds an additional economic incentive to transition to alternative fuels. The cost of staying on MDO/HFO increases year on year.

Bunker traders and fuel suppliers

• Customers now buy "compliance bundled": not just price/mt, but lifecycle carbon intensity (FuelEU), GFS compatibility and documentation traceability for EU ETS.
• Biofuels and RFNBO: fuels with low lifecycle emission factors will be in higher demand. Traders offering traceability and certification (mass balance, ISCC, RSB) will have a competitive edge.
• STS/blending operations: greater documentary scrutiny over fuel custody chains to support lifecycle declarations.
• Forward and long-term supply contracts: include adjustment clauses for changes in the NZF levy trajectory and GFS.

Fleet managers and chartering managers

• Integrated compliance reporting: management systems must consolidate CII, EU ETS (MRV verification), FuelEU and from 2027 GFS metrics into a single dashboard.
• Voyage planning: route/speed optimisation is no longer just operational efficiency — it is regulatory exposure management. Every EU/EEA voyage creates an EU ETS obligation.
• FuelEU pooling: assess whether it makes sense to create or join a fleet pool to offset high-consuming vessels. The window to organise 2026 pooling is now.
• Owner contracts: require clauses specifying EU ETS responsibility and once active, NZF levy: who pays if consumption exceeds the approved plan?

4) Action timeline 2025–2028

1. 2025 (already active): FuelEU Maritime entry into force. EU ETS at 70% of 2025 emissions. CII in normal operation.
2. September 2025 (passed): surrender of 40% EUAs for 2024 EU ETS emissions.
3. 2026: EU ETS at 100%. First full EU ETS bill for all in-scope ships. Time to audit TC contracts and fuel clauses.
4. 2027–2028 (projected): GFS entry into force and NZF levy start. Update contracts, MRV systems and fuel strategy before this date.
5. 2030: first NZF checkpoint (20–30% reduction). Fleets that have not begun fuel transition will face elevated compliance costs.

5) What does NOT change with MEPC84

• EU ETS Maritime does not disappear: the IMO has no authority to cancel EU legislation. Both systems coexist.
• FuelEU Maritime remains in force with its own fuel intensity trajectory.
• CII remains mandatory with its A–E rating system and corrective plans.
• Paris Agreement shipping sector commitments do not change. The NZF reinforces them.

6) Immediate action checklist (by operator type)

1. Review current TC contracts: is there a clause allocating EU ETS costs? Should it include the NZF levy when it enters into force?
2. Audit 2026 fuel profile: which vessels are simultaneously at risk under FuelEU and CII?
3. Evaluate FuelEU pooling options: the window to organise 2026 pooling is this semester.
4. Update MRV/reporting system: prepare to incorporate GFS metrics alongside EU ETS and FuelEU.
5. Require lifecycle traceability from bunker suppliers: intensity certificates will be mandatory under FuelEU and relevant under GFS.
6. Train your teams on the 5 regulatory frameworks: chartering, technical and finance staff need to understand how EU ETS, FuelEU, CII, GFS and NZF levy interact.

7) What Maritime Nexus does

At Maritime Nexus Academy we offer practical training on the regulatory frameworks most impacting European operators today: EU ETS, FuelEU Maritime and maritime decarbonisation. Not abstract theory but applicable criteria, real cases and analysis tools.

If your team is still unclear on how EU ETS and FuelEU interact and how to prepare for the 2027 GFS now is the time to get up to speed.

Note: This content is informational and does not constitute legal or financial advice. NZF dates and figures are projected from MEPC84 agreements; final regulations may vary. For specific cases, seek specialist advice.