Ohio Rev. Code § 3734.62
On and after April 6, 2007, no school district or educational service center established under Chapter 3311. of the Revised Code, community school established under Chapter 3314. of the Revised Code, or nonpublic school for which the director of education and workforce prescribes standards under section 3301.07 of the Revised Code and no employee of such a school district, educational service center, community school, or nonpublic school shall purchase mercury or a mercury-added measuring device for classroom use.
If a school district, educational service center, community school, or nonpublic school or an employee of a school district, educational service center, community school, or nonpublic school purchases mercury or a mercury-added measuring device for classroom use on or after April 6, 2007, in violation of this section, but properly recycles or disposes of the mercury or mercury-added measuring device upon learning of or being informed of the violation and creates and implements a mercury reduction plan, the director of environmental protection shall consider the recycling or disposal of the mercury or mercury-added measuring device and the implementation of and compliance with the mercury reduction plan as mitigating circumstances for purposes of enforcement of a violation of this section.
R.C. § 3734.62