Mo. Rev. Stat. § 391.250
It shall be the duty of every corporation, company, individual, association of persons, their trustees, lessees or receivers, that now or hereafter may own, control, operate or manage any street or electrical railway in any part of this state, to furnish, for the convenience, health and comfort of the conductor and motorman and the person or persons operating, controlling and in charge of any and all its cars, one stool or seat for each and every such conductor, motorman or person so operating, controlling or in charge of any of its cars, and allow each and every such motorman, conductor, or person operating, controlling or in charge of each, any and all its said cars to use and occupy said stool or seat for a portion of each and every trip any such car may take for a distance of not less than twenty-five percent of the full length of all the track or tracks traversed by said car.
(RSMo 1939 § 5303)
Prior revisions: 1929 § 4897; 1919 § 10108