Section 49A(5) in The West Bengal Factories Rules, 1958
(5)Locomotives: - (a) No locomotive shall be used in shunting operations unless it is in good working order.(b)Every locomotive and tender shall be provided with efficient brakes, all of which shall be maintained in good working order. Brake-shoes shall be examined at suitably fixed intervals and those that are worn out shall be replaced at once.(c)Water-gauge glasses of every locomotive, whatever is its boiler pressure, shall be protected with substantial glass or metal screens.(d)Suitable steps and hand-holds shall be provided at the corners of the locomotive for the use of shunter.(e)Every locomotive crane shall be provided with lifting and jacking pads at the four comers of the locomotive for assisting in re-rating operations.(f)It shall be clearly indicated on every locomotive crane in English and in a language understood by the majority of the workers in the factory.