What must the employee in charge ascertain before the track is returned to service?

The requirement for the employee in charge to ascertain that all track cars and trains are clear of the track before returning the track to service is crucial for ensuring safety and operational integrity. When a track has been taken out of service for maintenance or repairs, it is essential that no rolling stock is present on that segment of track when it is restored to operational status.

Having track cars or trains still on the track poses significant risks, such as potential collisions with trains that may be moving onto the track following the service interruption. Ensuring that the track is completely clear allows for a safe resumption of operations, mitigating the risk of accidents.

While ensuring that workers are clear of the area, that signals are functional, and that safety gear is available are all important safety considerations, the immediate priority in this scenario is confirming that the track itself is free of any obstructions, particularly moving vehicles. This underlines the primary focus on preventing incidents that relate to the direct use of the track.