This part of ISO 22915 specifies the tests to verify the stability of lateral- and front-stacking trucks, as defined in ISO 5053-1, with and without elevating operator position.

It applies to trucks fitted with fork arms, shuttle forks, and/or integrated attachments under normal operating conditions.

It applies to trucks fitted with a load carrier that can be shifted laterally or pivoted out of the longitudinal centre plane of the truck.