When running on an Approach signal, when must the Conductor confirm the stopping location?

When running on an Approach signal, the conductor must confirm the stopping location 1 mile from the planned stopping location. This practice is in place to provide adequate time for the crew to prepare for the upcoming stop and to ensure that the train can safely and effectively reduce speed to halt at the designated area, especially since Approach signals indicate that the train must be ready to slow down and possibly stop at the next signal. This distance allows for any necessary adjustments in speed and ensures safety protocols are followed in advance of the stop, thereby maintaining operational efficiency and safety.