Rule 302.2 — Superseding a Clearance

1. (a)A clearance may be issued superseding a clearance already in possession of the crew of the train or transfer addressed.
2. (b)When superseding a clearance that includes limits the train or transfer is occupying, the superseding clearance must include that section of track and must not include a requirement to wait until the arrival of an opposing train or transfer.
3. (c)If a superseding clearance restricts the authority already in possession of the train or transfer addressed, the RTC must not take further action until it has been acknowledged by the conductor and locomotive engineer.

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