Rule 80 — Main Track Authorization

1. (a)A movement must not foul or enter a main track without authority. Authority is conveyed in: CTC : By signal indication, RTC permission or written authority. OCS : Clearance Cautionary Limits: Rule 94 SCS : Special Instructions
2. (i)The RTC or signalman will issue instructions as necessary.
3. (b)If a movement occupies or fouls a main track or siding controlled territory without authority, or passes a block or interlocking signal indicating stop without authority to pass such signal; it must be stopped and protection as required by Rules 35 and 125 initiated. The RTC or signalman must be advised as soon as practicable.
4. (ii)If the instructions include the authority to proceed or reverse direction, unless relieved of the requirement by the RTC or signalman:

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