What is needed before entering an out of service track at an interlocking?

When entering an out of service track at an interlocking, obtaining permission from the RWIC (Roadway Worker in Charge) is essential. This procedure is in place to ensure the safety of personnel working in that area and to maintain operational integrity during track maintenance or other out-of-service activities. The RWIC is responsible for coordinating work activities, monitoring conditions, and ensuring that all safety procedures are followed before any movement can take place on an out-of-service track.

The RWIC's approval signifies that all necessary precautions have been taken, and that it is safe for the train or personnel to proceed. This authority is crucial in mitigating risks associated with entering tracks that are not actively in service.

Other options do not align with the specific safety protocols for entering out of service tracks. A clearance order from the conductor might be needed for general movement on tracks, but it does not pertain specifically to the requirements for out-of-service tracks. A verbal request from the Block Operator may not encompass the broader safety concerns necessary for entering tracks that are not actively in use. Similarly, a written notice from the dispatcher, while important for many operations, does not have the same direct safety oversight role as the RWIC in this scenario.