To help stakeholders better understand upcoming regulations, ClassNK has released a new document titled “What is the IMO’s Mid-term measures and how it works.” This guide simplifies the technical aspects of the IMO’s proposed mid-term greenhouse gas (GHG) reduction measures, offering clear explanations, calculation examples, and an action timeline. The initiative comes in response to developments at the 83rd session of the IMO Marine Environment Protection Committee (MEPC 83) in April 2025, where key draft amendments to MARPOL Annex VI were approved.
Two Pillars of the IMO’s Mid-Term Measures
The IMO’s mid-term measures are built on two main components:
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The GHG Fuel Intensity (GFI) Regulation – This sets mandatory standards for reducing the carbon intensity of marine fuels, targeting a progressive shift to low and zero-emission options.
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The IMO Net-Zero Fund – This fund will be financed through levies based on fuel emissions, with the goal of promoting decarbonization projects, especially in developing countries and emerging technologies.
ClassNK’s document helps users understand how these rules apply, with sample contribution calculations and practical steps for compliance.
Timeline and Industry Support for Smooth Transition
With draft amendments due for adoption in October 2025, stakeholders must prepare now. ClassNK’s publication includes a timeline of required actions and regulatory deadlines, helping shipowners and operators plan accordingly. Through its “Transition Support Services,” ClassNK reinforces its commitment to guiding the maritime sector through regulatory changes, ensuring informed and timely responses to environmental obligations.
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Source: ClassNK
