The Technology Collaboration Program (TCP) on Sustainable Combustion held its 47^th Task Leaders Meeting (TLM) in Ischia, Italy on June 22-26, 2025. TLM provides a unique opportunity for the leaders of the Combustion TCP collaborative tasks to bring all the task participants together for detailed technical exchanges, as well as programmatic coordination.  Nine separate TCP tasks reported at this meeting: Systems Analysis, Policy Briefs for Hydrogen and Its Vector Fuels, net-Zero Carbon Engine Technologies, Gas Engines, Gas Turbines, Fuel Injection Processes, Soot, Solid Fuel Combustion, and Combustion Chemistry. Around 55 researchers, program managers, and industry representatives attended from all 12 countries participating in the TLM, plus other countries. 

     A brief overview presentation was given by each Task Leader.  These were followed by detailed technical presentations from task participants for a total of 55 presentations. The technical content of the meeting centered on internal combustion engines for hard-to-electrify sectors of transportation and power generation and on utilization of sustainable, non-fossil fuels in these sectors.  There were two invited speakers. Alberto Vassallo, Senior Manager, Advanced Engineering at Dumarey Automotive Italia S.p.A. spoke on,  “Powering the Future: Evolution of Internal Combustion Engines and the Path to Zero-Carbon Solutions.” Nicole Wermuth , CSO for LEC spoke on, “Renewable Fuels in Large Internal Combustion Engine Applications.” Overall, the meeting provided significant interaction and discussion among the TLM participants and others attending.

     The TLM was organized by Alessandro Montanaro (TCP Chair for 2025) and Luigi Allocca (TCP Delegate) both from CNR, Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili. The next TLM (TLM48) will be held October 18-23, 2026 in Busan, Korea. Korea.