IMO Papers

This document comments on document PPR 13/17/1 and highlights that development of guidelines for managing ammonia effluent generated from ammonia-fuelled ships must account not only for the acute and short-term toxicity of ammonia effluent, but also the wider impacts of reactive nitrogen release, including impacts to marine organisms from chronic, long-term ammonia effluent release, and disturbance to the nitrogen cycle. Prohibiting discharge of ammonia effluent to the marine environment is the management measure best aligned with the precautionary principle.

This document provides comments on the report of the Correspondence Group on Underwater Radiated Noise, supporting the proposed establishment of a working group at this session and providing input on next steps under the proposed terms of reference for this group.

This document shares the findings of a study on the potential underwater radiated noise (URN) impacts of LNG development on marine mammals in the Gulf of California. The report examines the effects of URN from LNG tanker traffic on migratory and resident whales, as well as related impacts on air quality and greenhouse gas (GHG) emissions.

This document highlights the lack of strong signals from the IMO Net-Zero Framework for e-fuels in shipping’s transition.

This document encourages the re-establishment of the correspondence group looking at “other social and economic sustainability themes/aspects of marine fuels” for potential inclusion in the 2024 Guidelines on life cycle GHG intensity of marine fuels (2024 LCA Guidelines).

This document reviews the treatment of indirect land use change (ILUC) within the 2024 Guidelines on life cycle GHG intensity of marine fuels (2024 LCA Guidelines) (resolution MEPC.391(81)).

This document shares the findings of a literature review and summary report on the well-to-tank (WtT) GHG intensity of liquefied natural gas(LNG).

This document presents the rationale for ensuring that the Fifth IMO GHG Study properly captures historic trends and the future potential of improvements in energy efficiency, as distinct from carbon intensity, and further argues for greater transparency and data granularity. It makes suggestions for changes to the draft terms of reference contained in document MEPC 83/7/2 (Secretariat) to those ends.

This document comments on documents MEPC/ES.2/2 and MEPC/ES.2/3 and describes recent international legal developments that Member States must take into account when considering the adoption of the IMO Net-Zero Framework (MEPC/ES.2/2) and the draft work plan to prepare for its entry into force (MEPC/ES.2/3).