Rule 4009. Stepping, walking or sitting on the ball of rails, frogs, switches, third rails, interlocking machinery or connections, except when absolutely necessary, if prohibited.

Rule 109. When stopping to take water, freight trains of more than fifteen cars must stop not less than fifty feet before reaching the water

Rule 107. Conductors and Brakemen must know that the cars in their trains are in good order before starting, and inspect them whenever they have

Working around Trains, Cars, Yards, and Stations Rule 37. Care must be exercised in piling coal on the tanks of engines to prevent its falling