ARM 4.12.730
ARM 4.12.730. TANK CAR LOADING AND UNLOADING POINTS AND OPERATIONS
Cite as Mont. Admin. R. 4.12.730
(1) A sign reading, "Stop-Tank Car Connected" or "Stop-Men at Work", shall be displayed at the active end or ends of the siding while the car is connected for loading or unloading.
(2) While tank cars are on siding for loading or unloading, the wheels at both ends shall be blocked on the rails.
(3) Tank car loading or unloading site shall be substantially level.