Ohio Rev. Code § 737.03
The director of public safety shall manage and make all contracts with reference to police stations, fire houses, reform schools, infirmaries, hospitals other than municipal hospitals operated pursuant to Chapter 749. of the Revised Code, workhouses, farms, pesthouses, and all other charitable and reformatory institutions. In the control and supervision of those institutions, the director shall be governed by the provisions of Title VII of the Revised Code relating to those institutions.
The director may make all contracts and expenditures of money for acquiring lands for the erection or repairing of station houses, police stations, fire department buildings, fire cisterns, and plugs, that are required, for the purchase of engines, apparatus, and all other supplies necessary for the police and fire departments, and for other undertakings and departments under the director's supervision, but no obligation involving an expenditure of more than the amount specified in section 9.17 of the Revised Code shall be created unless first authorized and directed by ordinance. In making, altering, or modifying those contracts, the director shall be governed by sections 735.05 to 735.09 of the Revised Code, except that all bids shall be filed with and opened by the director. The director shall make no sale or disposition of any property belonging to the city without first being authorized by resolution or ordinance of the city legislative authority.
R.C. § 737.03