Ohio Rev. Code § 5545.06: Adoption and recording of resolutions.

Resolutions for the adoption or alteration of plans or specifications, awards of contracts, hiring of engineers, superintendents, or other employees and the fixing of their compensation, the approval of bonds, and the allowance of estimates shall be in writing and require for their adoption the votes of five members of the commission provided for in section 5545.01 of the Revised Code taken by yeas and nays and recorded on the journal of the board of county commissioners.

When signed by five members of the commission, the county auditor shall draw his warrant on the county treasurer for the payment of all bills and estimates of such commission.