Abstract: A lift device includes a chassis, a platform configured to support an operator, the platform including an attachment point configured to engage a lanyard to secure the operator to the platform, a lift assembly coupling the platform to the chassis and configured to raise the platform relative to the chassis, a sensor configured to provide sensor data indicative of engagement between the attachment point and the lanyard, and a controller operatively coupled to the sensor. The controller is configured to determine, based on the sensor data, if the lanyard is engaged with the attachment point. In response to a determination that the lanyard is not engaged with the attachment point, the controller is configured to at least one of (a) activate an alarm to provide a notification to alert the operator that the lanyard is not engaged with the attachment point or (b) limit movement of the lift device.