Rule 840.3 — Protection of Track Work at Automatic Interlockings Railway ....... Crossings at Grade

1. (a)Permission must be obtained from the RTC of both railways (where applicable).
2. (b)After permission has been obtained and before any track work is started, the foreman must open the box marked “switches”, open the knife switch and must wait five minutes or such greater time as may be posted in the box. The switch must be left open until track work is completed.
3. (c)In addition, a visible indicator marked “840.3 Protection” or special lock must be secured to the box marked “switches” to indicate that track work is ongoing.
4. (d)After track work is completed the RTC of both railways (where applicable) must be notified.

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