What should be done with blocking devices applied to protect movements entering ABS or DCS territory?

Blocking devices applied to protect movements entering Automatic Block Signal (ABS) or Traffic Control System (DCS) territory are crucial safety measures. In this context, the correct response emphasizes that these devices do not require immediate reporting to the Dispatcher. This is because the primary function of the blocking devices is to ensure safety and protect train movements without needing constant supervisor verification or oversight.

In practice, once properly applied, blocking devices serve their purpose effectively. Therefore, their presence does not necessitate regular updates to the dispatcher unless specific circumstances arise that might require their status to be communicated. This approach ensures the efficiency of operations while maintaining safety protocols without overburdening the dispatcher with non-critical updates.

The other options suggest different actions that might imply a higher level of administrative overhead or immediate action that isn't necessary under normal circumstances when blocking devices are properly established and in use.