Rule 602 — Proper Signal Indications Required

1. (a)Except in case of emergency, radio or hand signals must not be used when the proper indication can be displayed by the interlocking signals.
2. (b)A movement stopped by the signalman, other than by means of signal indication, while approaching, or within an interlocking, must not move in either direction until the proper signal or instructions have been received from the signalman.
3. (c)When a movement stops with its trailing end within interlocking limits, it must not reverse direction without the proper interlocking signal indication, or permission from the signalman.

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