The main objective of the Action is to develop cleaner and more efficient combustion processes through the design and implementation of better defined and more accurate detailed chemical kinetic models. The key objective of this Action is to promote at EU level the development of cleaner and more efficient combustion technologies through the implementation of theoretically grounded and more accurate chemical models. This will be achieved by gathering experts from 21 European countries and working on the theory and computation of elementary reactions, on detailed kinetic modelling in a variety of combustion environments, on experimental measurements in reactors, rapid compression machines, shock tubes and burners and on the assemblage, as well, of technologically advanced industrial devices. This is motivated by the fact that the current models which have been developed for the combustion of hydrocarbons and oxygenated compounds present in natural gas, kerosene, gasoline, diesel and bio-fuels do a reasonable job in predicting auto-ignition and flame propagation parameters, and the formation of the main regulated pollutants. However their success rate deteriorates sharply in the prediction of the formation of minor products (alkenes, dienes, aromatics, aldehydes) and soot nano-particles, which have a deleterious impact on both the environment and on human health. The launch of this Action would represent, therefore a big step forward in our understanding of this economically valuable, politically and socially desirable and scientifically challenging issue.