Pollution Prevention & Response 11th Session (PPR 11) Summary Report

The 11th session of the Sub-Committee on Pollution Prevention and Response (PPR 11) was held in person in London from 19 to 23 February 2024, with hybrid facilities allowing remote participation.

PPR 11 agreed on the following, with a view to approval by MEPC 82:

• draft amendments to MARPOL Annex VI and the NOx Technical Code 2008 on the use of multiple engine operational profiles (MEOPs) for a marine diesel engine including clarifying engine test cycles;
• draft amendments to the NOx Technical Code 2008 on certification of an engine subject to substantial modification;
• draft guidelines on mitigation measures to reduce risks of use and carriage for use of heavy fuel oil as fuel by ships in Arctic waters and the draft cover MEPC circular;
• draft MEPC circular on recommendations for the carriage of plastic pellets by sea in freight containers;
• draft guidelines on the clean-up of plastic pellets from ship-source spills;
• draft guidance on best practice regarding recommendatory goal-based control measures to reduce the impact on the Arctic of Black Carbon emissions from international shipping;
• draft guidelines on recommendatory Black Carbon emission measurement, monitoring and reporting; and
• draft revised tank cleaning additives guidance note and reporting form (MEPC.1/Circ.590).

PPR 11 also reviewed the carriage requirements in the MEPC.2/Circular on Provisional Categorization of Liquid Substances in accordance with MARPOL Annex II and the IBC Code (to be issued on 1 December 2024).

Finally, PPR 11 progressed on the development of draft amendments to MARPOL Annex IV and associated guidelines, with the re-establishment of a correspondence group.