Defines safety requirements and the means for their verification, additional to those of ISO 3691-1, for industrial trucks with a vertical, non-tilting mast: a) those trucks having an elevating operator position, and order picking trucks, as defined in ISO 5053-1, where the elevating operator position and the load handling device lifts to a height of more than 1200 mm above ground level; b) lateral- and front-stacking trucks, as defined in ISO 5053-1, designed to travel with a load-handling device elevated more than 1200 mm above ground level, with the load-handling device elevated, lowered or laterally displaced, laden or unladen, while the truck is travelling.