858. Exclusive Designation
When an Exclusive TOP is issued, it must be indicated in the appropriate section of the TOP .
859. Exclusivity
Before an Exclusive TOP is issued, the RTC must verify that no other TOP , Form Y or Form T is in effect within the limits to be covered by the TOP .
An Exclusive TOP must not be issued as a Follow-Up TOP .
860. After Issuing an Exclusive TOP
Within the limits of an Exclusive TOP , the RTC must;
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(a) not issue another TOP ;
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(b) not issue a Form T or Form Y;
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(c) not issue a Rule 311, 567.1, 567.2, 618 or 618.1 authority to a movement.
861. Exclusive TOP - Two Track Units
When a second track unit is occupying the limits, both track unit operators must have a thorough understanding in writing as to the operation of each other.