Ohio Revised Code Title III. Counties § 306.85

Bonds of a regional transit commission are lawful investments of banks, savings banks, mutual savings banks, trust companies, savings and loan associations, deposit guaranty associations, bond retirement funds or sinking funds of municipal corporations, boards of education, regional transit commissions, counties, the administrator of workers' compensation, state teachers retirement system, school employees retirement system, public employees retirement system, Ohio police and fire pension fund, and domestic insurance companies for life and other than life, and are acceptable as security for the deposit of public moneys.