Defines additional tests to verify the stability of industrial variable-reach fork-lift trucks handling empty or laden freight containers of length 6 m and above, swap bodies or semi-trailers. Applicable to self-propelled, seated-rider operated, counterbalanced industrial variable-reach fork-lift trucks with non-slewing booms or a slewing movement not greater than 5 degree either side of the longitudinal centre plane of the truck, fitted with fork arms or load-handling attachments, a rigid chassis, having stabilizers or axle-locking devices, and with two-wheel steering systems.