Worldwide, and in particular in Europe, a great energy transition is currently going on in the field of transportation: from vehicles, including heavy goods vehicles, fuelled by fossil fuels to vehicles fuelled by alternative fuels such as hydrogen, electricity (battery packs) and liquefied natural gas (green vehicles). Green cars are also gaining market share at an unbelievable speed. We expect that, at least in first instance, the number of accidents will also grow simultaneously. However, the way in which such accidents need to be dealt with is far from well-developed and optimised. We suspected that the individual countries had started developing tactics and techniques for the response to such new type of accidents, and that they had also started developing knowledge and doing experiments by themselves. In the Netherlands, we had started to bring together all the available knowledge from the various industries, and internationally, to find ways of coping with these new kinds of incidents. But in doing this, there is always the question: maybe this is already known in other European countries? It was for this reason that we decided to organise an Exchange of Experts to find out what knowledge is already available, and also to share the available knowledge. This document is the report of this Exchange of Experts.