Abstract: A vehicle, such as an extendible boom forklift, that includes a personnel work platform (PWP). The personnel work platform includes a shut-off switch that is connected to the electronic controls for the extendible boom forklift. The operational controls of the extendible boom forklift include a personnel work platform control system that modifies the operation of the extendible boom forklift when the forklift is in a PWP mode. The PWP control system receives inputs from the shut-off switch, a PWP system actuation switch, a service brake pressure switch and a level sensor/switch such that the control system enables the PWP mode only upon satisfying certain safety-related concerns. In the PWP mode, the control system engages the parking brake, declutches the transmission, locks the frame stabilizing cylinder, deactivates the auxiliary and tilt hydraulic functions and limits the frame leveling rate to slow speeds.