What is required for a read-back in Track Warrant Control communications?

• A. The crew repeats the warrant details exactly as transmitted, and the dispatcher confirms accuracy.
• B. The crew paraphrases the warrant and the dispatcher signs off.
• C. The dispatcher repeats the warrant and crew confirms.
• D. No read-back is required.

Answer: (A)

Read-back verification is the safety step that ensures the exact instructions of a track warrant are understood and recorded correctly. In Track Warrant Control, the controller issues a warrant detailing the movement authority and any restrictions. The crew must repeat that information back exactly as it was transmitted, word for word. The dispatcher then confirms that the read-back matches the original wording. This exact repetition and verification catch any mishearing or transcription errors before the train moves, preventing dangerous miscommunications on the track.

Paraphrasing or altering the wording isn’t acceptable because it can change the meaning or emphasis of the instructions, potentially leading to unsafe movements. Relying on the dispatcher to repeat the warrant back to the crew without the crew’s exact repetition doesn’t provide the same independent check of understanding. And having no read-back at all would leave a gap where miscommunications could slip through.