Introduce operating procedures for Tranz Rail staff and customers who move wagons without using rail mounted vehicles, or load or unload wagons, which ensure: only approved equipment is used, and only by appropriately certified staff; equipment for moving wagons is applied at approved positions, and that these positions are clearly defined to staff concerned; that any damage causing deformation to safety critical components such as handgrips which could compromise fitness for purpose is identified promptly and the wagons removed from service.