Rule 309 — Moving Through Working Limits

1. (a)To enter or move within the working limits of one or more trains or transfers, a train or transfer must be restricted by its clearance as follows: “Protect against Work 5748 (and Work 9460) between Exeter and Jasper.”
2. (b)A train or transfer must not enter nor move within the working limits until a thorough understanding is established with the conductor and locomotive engineer of each work train or transfer. Such understanding must be in writing and include information with respect to the specific operation of each train and transfer and the protection to be provided. Such protection must be provided until the train or transfer has left the working limits.

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