This standard applies to rough-terrain slewing variable-reach trucks (herein-after referred to as trucks ) as defined in ISO 10896-2 that have a specific seated operator s position, on the left hand side of the boom, or centre position (excluding operator position on the right side of the boom). This standard specifies a static test method for determining and evaluating the operator s visibility on a rectangular 1 m boundary close around the slewing rough-terrain variable-reach truck and on a 12 m visibility test circle. Performance requirements for visibility are specified in this standard. It applies to trucks for operation on work sites.