After making a positive identification for switching operations in the yard, may employees use shortened identifications?

Using shortened identifications after making a positive identification for switching operations in the yard is permitted, indicating that employees can use these abbreviated forms in their communications. This practice helps streamline communication among crew members and speeds up operations without compromising safety, especially after a positive identification has already been confirmed. Full identifications may be necessary initially to ensure clarity and safety during operations, but once a team is positively identified and all personnel are aware of the context, the use of shortened identifications can facilitate quicker and more efficient communication.

In this context, the option that states full identifications must always be used would hinder efficiency unnecessarily. Similarly, restrictions that limit the use of shortened identifications to only those cases authorized by a supervisor or during emergencies could complicate daily operations and slow down work processes, and may not be practical in routine situations where positive identification has been established and team members are familiar with their roles and responsibilities.