Proposal by the expert from the Netherlands, aiming to achieve an identification of hydrogen-fuelled buses and trucks which is consistent with already existing regulated identification for Liquified Petroleum Gas (LPG), Compressed Natural Gas (CNG) and Liquid Natural Gas (LNG) fuelled buses. The background for the additional labelling would help emergency services to determine how to approach these vehicles in case of a fire. This proposal extends the scope to N2/N3 vehicles due to the wider use and introduces consistency for the installation of labels