Ohio Rev. Code Ann. § 729.51

The director of public service and the board of trustees of public affairs may make such bylaws and regulations as are necessary for the safe, economical, and efficient management and protection of the sewerage system and sewage pumping, treatment, and disposal works mentioned in section 729.49 of the Revised Code, and for the construction and use of house sewers and their connections to the sewerage system. Such bylaws and regulations shall have the same effect as ordinances, when not repugnant thereto, or to the constitution or laws of the state.