In what position can the brake valve handle be removed?

The brake valve handle can be removed only when it is in the handle off position for safety and operational reasons. This position ensures that the brakes are not actively engaged, allowing for safe handling and maintenance of the control systems. If the handle were to be removed in any other position, there could be a risk of unintentional brake activation or other potential hazards during operation, which could compromise safety for both the operator and the train. Recognizing the importance of the handle being in a specific position also reflects an understanding of standard safety protocols and operational procedures in train operation.