2025 Workshop on the relationship between ship energy efficiency and underwater radiated noise

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Studies have shown that underwater radiated noise from commercial ships may have both short and long-term negative consequences on marine life, especially marine mammals. IMO's Marine Environment Protection Committee (MEPC 80) approved the Revised guidelines for the reduction of underwater radiated noise from shipping to address adverse impacts on marine life (in force since 1 October 2023). 

Building on the successes of the 2023 workshop, as well as recent advancements, this year’s workshop will deepen the understanding of emerging trends and ongoing efforts in forecasting energy efficiency and underwater radiated noise (EE/URN). It will draw on case studies to highlight practical lessons, strengthen public–private collaboration and identify next steps toward more integrated EE/URN approaches.

Date: 6-7 November 2025

Place: IMO Headquarters, 4 Albert Embankment, London, SE1 7SR, livestreamed on IMO's YouTube channel.

Please find more information and details here. 

Registration

For more details on registration, please refer to Circular Letter No. 4986.

For any queries, please contact urnworkshop@imo.org. 

Registration is mandatory for active participation. 

Programme

Please find the detailed programme here. 

MAIN THEMES

  • Updates on technical energy efficiency and underwater radiated noise reduction advances

  • Integrated EE and URN management, cost evaluation and incentivization schemes

  • Towards integrated design standards for EE and URN

  • Predictive models to evaluate co-benefits relative to EE and URN objectives

Read More

Read more on underwater radiated noise (URN).