Rule 841 — Protection of Track Work on Non-Main Track and in Cautionary Limits

1. (a)Before applying protection the employee responsible, if any, for the track must be advised.
2. (i)lock switch(es) with a special lock, in a position to prevent a movement from entering the working limits;
3. (b)When working limits are on a track where the kicking of equipment is permitted per Rule 113.5(a), protection must be provided by (c)(i) or (iii).
4. (ii)place a red flag by day, and in addition, a red light by night, or when day signals cannot be plainly seen, between the rails to prevent a movement from entering the working limits. Such signal(s) must be placed at least 100 yards from the working point where practicable, where there will be a clear view of the signal(s) from an approaching movement of at least 300 yards. If there is equipment on the track which will prevent a clear view of 300 yards, the red signals must be placed to include such equipment; or
5. (c)The foreman must provide protection to prevent access to the working limits using one or more of the following methods:
6. (iii)a red signal displayed per (ii) and a derail locked in the derailing position with a special lock.

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