Agenda of the September session

The International Maritime Organization convenes its Intersessional Working Group on Reduction of GHG Emissions from Ships (ISWG‑GHG 22) in London from 1 to 4 September. Member states are slated to assess the baseline Net‑Zero Framework alongside four alternative proposals, a step that will set the tone for the organisation’s December Marine Environment Protection Committee meeting.

What the Net‑Zero Framework entails

The framework, described by Hellenic Shipping News as the “long negotiated compromise climate agreement”, was adopted at MEPC 83 in 2025 and is earmarked for formal adoption at MEPC 85/ES.2 this December. Its core comprises a global fuel standard that obliges ship operators to progressively cut greenhouse‑gas emissions from their fuels, with penalties for non‑compliance. In parallel, the scheme introduces a pricing mechanism that attaches a cost to a share of ships’ emitted CO₂, providing a clear financial incentive to meet the fuel‑standard trajectory.

Targets and sector context

The IMO’s greenhouse‑gas strategy seeks full decarbonisation by 2050, with interim milestones of a 30 % cut in absolute emissions by 2030 and an 80 % reduction by 2040. Shipping currently accounts for roughly 2–3 % of global GHG output – a share comparable to the world’s fifth‑largest emitter, Japan.

Industry advocacy amid competing drafts

Representatives of the Clean Shipping Coalition have appealed to delegations to “hold firm” on the Net‑Zero Framework despite the presence of alternative texts that could dilute climate ambition. As quoted by Hellenic Shipping News, coalition president Lukas Leppert warned that any weakening would produce a slower, costlier transition for the sector.

Potential ramifications of alternative proposals

The four competing drafts under review aim to modify or replace elements of the NZF, notably the global fuel standard and the emissions‑pricing component. Should member states favour one of these alternatives, the industry could face a divergent regulatory landscape with uncertain compliance timelines and potentially weaker emission‑reduction obligations.

What this means for operators

Ship owners should ready their fleets for the possible activation of the NZF’s fuel‑standard regime and associated carbon‑pricing scheme. Early engagement in technical assessments, fuel‑mix planning and cost‑impact modelling will be crucial to mitigate penalties and align with the IMO’s decarbonisation timetable. Simultaneously, operators must monitor the deliberations on alternative proposals, as any shift away from the current framework could alter investment priorities and compliance schedules.