No public utility shall make or give any undue or unreasonable preference or advantage to any person or corporation, or to any locality, or to any particular description of service in any respect whatever or subject any particular person or corporation or locality, or any particular description of service, to any undue or unreasonable prejudice or disadvantage in any respect whatever.
Source. 1911, 164:7. PL 242:11. RL 292:11. 1951, 203:46 par. 10, eff. Sept. 1, 1951.