Wis. Stat. § 195.08

(1r) Service rates to be adequate and just. Every railroad shall furnish reasonably adequate service and facilities, and the charges made for the transportation of passengers or property or for any service in connection therewith, or for the receiving, switching, delivering, storing or handling of property shall be reasonable and just, and every unjust and unreasonable charge for such service is prohibited and declared to be unlawful.

(2) Schedules; publication. Every railroad shall print in plain type and file with the office schedules which shall be open to public inspection showing all rates, fares and charges for the transportation of passengers and property and any service in connection therewith which it has established and which are in force at the time between all points in this state upon its line or any line controlled or operated by it. The schedules shall plainly state the places upon its line or any line controlled or operated by it in this state between which passengers and property will be carried, and there shall be filed therewith the classification of freight in force.

(3) Schedules, rules and regulations. Every railroad shall publish with and as a part of such schedules all rules and regulations that in any manner affect the rates charged or to be charged for the transportation of passengers or property, its charges for delay in loading or unloading cars, for track and car service or rental and for demurrage, switching, terminal or transfer service, or for rendering any other service in connection with the transportation of persons or property.

(4) Schedules, copies in depots. Two copies of said schedules for the use of the public shall be kept in every depot, station and office of such railroad in such form and place as to be easily accessible to the public.

(7) Changes in schedule. No change shall be made in any schedule, or in any classification, unless the change shall be plainly indicated upon existing schedules, or by filing new schedules in lieu thereof, 30 days prior to the time the same are to take effect. Copies of all new schedules shall be filed as hereinbefore provided in every depot, station and office of such railroad at places to or from which the rates in such schedules apply, 30 days prior to the time the same are to take effect, unless the office of the commissioner of railroads shall prescribe a less time.

(9) Complaint against change in schedules. Whenever a complaint is filed with the office before any change in any schedule, or in any classification, rule, regulation or practice becomes effective to the effect that the change is unreasonable or unjustly discriminatory, the office shall give notice to the railroad that a complaint has been made, may direct the department to investigate the complaint and shall set the complaint for hearing. Any report of the department shall be presented to the office only at the hearing on the complaint. The office may, in its discretion, by order, stay the change pending the determination of the matters investigated at any time before the change shall take effect. If the change complained of is found unreasonable or unjustly discriminatory, the change shall not take effect and, if the change has become effective, the office shall order the discontinuance thereof. The office may fix and order substituted for any such change such rates, joint rates, fares, charges, classification, rule, regulation, practice or service as it shall have determined to be just and reasonable and which shall be charged, imposed or followed in the future, and shall make such order respecting such rule, regulation, practice or service as it shall determine to be reasonable and which shall be observed and followed in the future. Procedure and notice shall be as provided in s. 195.04 (2) to (4) .

(11) Freight classification. There shall be but one classification of freight which shall be uniform on all railroads.