ANSI/SAIA A92.2-2021
Vehicle-Mounted Elevating and Rotating Aerial Devices
4.3 Controls
4.3.1 General. Aerial devices shall have both upper and lower controls for boom positioning. All controls shall be clearly identified as to their function and protected from damage and unintentional actuation. The boom positioning and material carrying attachment controls shall return to their neutral position when released by the operator.
HAZARD: Employees are exposed to operational aerial lift hazards.
ABATEMENT: Take the aerial lift out of service until the controls are clearly identified and no longer damaged.

