Reference weight definition

Reference weight means the weight of the vehicle in running order, increased by a uniform weight of 120 kg. The weight of the vehicle in running order is its total unladen weight with all tanks full—with the exception of the fuel tank, which must only be half full—and a set of tools and the spare wheel on board.
Reference weight means the weight of the vehicle in running order, increased by a uniform figure of 75 kg. The weight of the vehicle in running order is its total unladen weight with all tanks filled to within 90 per cent of their maximum capacity;